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916 lines
25 KiB
916 lines
25 KiB
/*
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* jQuery selectBox - A cosmetic, styleable replacement for SELECT elements
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*
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* Copyright 2012 Cory LaViska for A Beautiful Site, LLC.
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*
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* https://github.com/claviska/jquery-selectBox
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*
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* Licensed under both the MIT license and the GNU GPLv2 (same as jQuery: http://jquery.org/license)
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*
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*/
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if(jQuery) (function($) {
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$.extend($.fn, {
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selectBox: function(method, data) {
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var typeTimer,
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typeSearch = '',
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isMac = navigator.platform.match(/mac/i);
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//
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// Private methods
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//
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var init = function(select, data) {
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var options;
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// Disable for iOS devices (their native controls are more suitable for a touch device)
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if( navigator.userAgent.match(/iPad|iPhone|Android|IEMobile|BlackBerry/i) ) return false;
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// Element must be a select control
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if( select.tagName.toLowerCase() !== 'select' ) return false;
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select = $(select);
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if( select.data('selectBox-control') ) return false;
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var control = $('<a class="selectBox" />'),
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inline = select.attr('multiple') || parseInt(select.attr('size')) > 1;
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var settings = data || {};
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control
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.width(select.outerWidth())
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.addClass(select.attr('class'))
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.attr('title', select.attr('title') || '')
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.attr('tabindex', parseInt(select.attr('tabindex')))
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.css('display', 'inline-block')
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.bind('focus.selectBox', function() {
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if( this !== document.activeElement && document.body !== document.activeElement ) $(document.activeElement).blur();
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if( control.hasClass('selectBox-active') ) return;
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control.addClass('selectBox-active');
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select.trigger('focus');
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})
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.bind('blur.selectBox', function() {
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if( !control.hasClass('selectBox-active') ) return;
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control.removeClass('selectBox-active');
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select.trigger('blur');
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});
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if( !$(window).data('selectBox-bindings') ) {
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$(window)
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.data('selectBox-bindings', true)
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.bind('scroll.selectBox', hideMenus)
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.bind('resize.selectBox', hideMenus);
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}
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if( select.attr('disabled') ) control.addClass('selectBox-disabled');
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// Focus on control when label is clicked
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select.bind('click.selectBox', function(event) {
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control.focus();
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event.preventDefault();
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});
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// Generate control
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if( inline ) {
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//
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// Inline controls
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//
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options = getOptions(select, 'inline');
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control
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.append(options)
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.data('selectBox-options', options)
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.addClass('selectBox-inline selectBox-menuShowing')
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.bind('keydown.selectBox', function(event) {
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handleKeyDown(select, event);
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})
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.bind('keypress.selectBox', function(event) {
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handleKeyPress(select, event);
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})
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.bind('mousedown.selectBox', function(event) {
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if( $(event.target).is('A.selectBox-inline') ) event.preventDefault();
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if( !control.hasClass('selectBox-focus') ) control.focus();
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})
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.insertAfter(select);
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// Auto-height based on size attribute
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if( !select[0].style.height ) {
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var size = select.attr('size') ? parseInt(select.attr('size')) : 5;
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// Draw a dummy control off-screen, measure, and remove it
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var tmp = control
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.clone()
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.removeAttr('id')
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.css({
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position: 'absolute',
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top: '-9999em'
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})
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.show()
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.appendTo('body');
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tmp.find('.selectBox-options').html('<li><a>\u00A0</a></li>');
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var optionHeight = parseInt(tmp.find('.selectBox-options A:first').html(' ').outerHeight());
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tmp.remove();
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control.height(optionHeight * size);
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}
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disableSelection(control);
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} else {
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//
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// Dropdown controls
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//
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var label = $('<span class="selectBox-label" />'),
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arrow = $('<span class="selectBox-arrow" />');
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// Update label
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label
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.attr('class', getLabelClass(select))
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.text(getLabelText(select));
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options = getOptions(select, 'dropdown');
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options.appendTo('BODY');
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control
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.data('selectBox-options', options)
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.addClass('selectBox-dropdown')
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.append(label)
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.append(arrow)
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.bind('mousedown.selectBox', function(event) {
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if( control.hasClass('selectBox-menuShowing') ) {
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hideMenus();
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} else {
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event.stopPropagation();
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// Webkit fix to prevent premature selection of options
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options.data('selectBox-down-at-x', event.screenX).data('selectBox-down-at-y', event.screenY);
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showMenu(select);
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}
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})
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.bind('keydown.selectBox', function(event) {
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handleKeyDown(select, event);
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})
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.bind('keypress.selectBox', function(event) {
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handleKeyPress(select, event);
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})
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.bind('open.selectBox', function(event, triggerData) {
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if(triggerData && triggerData._selectBox === true) return;
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showMenu(select);
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})
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.bind('close.selectBox', function(event, triggerData) {
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if(triggerData && triggerData._selectBox === true) return;
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hideMenus();
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})
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.insertAfter(select);
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// Set label width
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var labelWidth = control.width() - arrow.outerWidth() - parseInt(label.css('paddingLeft')) - parseInt(label.css('paddingLeft'));
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label.width(labelWidth);
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disableSelection(control);
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}
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// Store data for later use and show the control
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select
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.addClass('selectBox')
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.data('selectBox-control', control)
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.data('selectBox-settings', settings)
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.hide();
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};
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var getOptions = function(select, type) {
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var options;
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// Private function to handle recursion in the getOptions function.
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var _getOptions = function(select, options) {
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// Loop through the set in order of element children.
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select.children('OPTION, OPTGROUP').each( function() {
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// If the element is an option, add it to the list.
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if ($(this).is('OPTION')) {
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// Check for a value in the option found.
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if($(this).length > 0) {
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// Create an option form the found element.
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generateOptions($(this), options);
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}
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else {
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// No option information found, so add an empty.
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options.append('<li>\u00A0</li>');
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}
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}
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else {
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// If the element is an option group, add the group and call this function on it.
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var optgroup = $('<li class="selectBox-optgroup" />');
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optgroup.text($(this).attr('label'));
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options.append(optgroup);
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options = _getOptions($(this), options);
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}
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});
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// Return the built strin
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return options;
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};
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switch( type ) {
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case 'inline':
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options = $('<ul class="selectBox-options" />');
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options = _getOptions(select, options);
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options
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.find('A')
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.bind('mouseover.selectBox', function(event) {
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addHover(select, $(this).parent());
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})
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.bind('mouseout.selectBox', function(event) {
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removeHover(select, $(this).parent());
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})
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.bind('mousedown.selectBox', function(event) {
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event.preventDefault(); // Prevent options from being "dragged"
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if( !select.selectBox('control').hasClass('selectBox-active') ) select.selectBox('control').focus();
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})
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.bind('mouseup.selectBox', function(event) {
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hideMenus();
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selectOption(select, $(this).parent(), event);
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});
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disableSelection(options);
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return options;
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case 'dropdown':
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options = $('<ul class="selectBox-dropdown-menu selectBox-options" />');
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options = _getOptions(select, options);
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options
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.data('selectBox-select', select)
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.css('display', 'none')
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.appendTo('BODY')
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.find('A')
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.bind('mousedown.selectBox', function(event) {
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event.preventDefault(); // Prevent options from being "dragged"
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if( event.screenX === options.data('selectBox-down-at-x') && event.screenY === options.data('selectBox-down-at-y') ) {
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options.removeData('selectBox-down-at-x').removeData('selectBox-down-at-y');
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hideMenus();
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}
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})
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.bind('mouseup.selectBox', function(event) {
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if( event.screenX === options.data('selectBox-down-at-x') && event.screenY === options.data('selectBox-down-at-y') ) {
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return;
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} else {
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options.removeData('selectBox-down-at-x').removeData('selectBox-down-at-y');
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}
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selectOption(select, $(this).parent());
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hideMenus();
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}).bind('mouseover.selectBox', function(event) {
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addHover(select, $(this).parent());
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})
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.bind('mouseout.selectBox', function(event) {
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removeHover(select, $(this).parent());
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});
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// Inherit classes for dropdown menu
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var classes = select.attr('class') || '';
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if( classes !== '' ) {
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classes = classes.split(' ');
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for( var i in classes ) options.addClass(classes[i] + '-selectBox-dropdown-menu');
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}
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disableSelection(options);
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return options;
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}
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};
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var getLabelClass = function(select) {
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var selected = $(select).find('OPTION:selected');
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return ('selectBox-label ' + (selected.attr('class') || '')).replace(/\s+$/, '');
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};
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var getLabelText = function(select) {
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var selected = $(select).find('OPTION:selected');
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return selected.text() || '\u00A0';
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};
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var setLabel = function(select) {
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select = $(select);
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var control = select.data('selectBox-control');
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if( !control ) return;
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control.find('.selectBox-label').attr('class', getLabelClass(select)).text(getLabelText(select));
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};
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var destroy = function(select) {
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select = $(select);
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var control = select.data('selectBox-control');
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if( !control ) return;
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var options = control.data('selectBox-options');
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options.remove();
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control.remove();
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select
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.removeClass('selectBox')
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.removeData('selectBox-control').data('selectBox-control', null)
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.removeData('selectBox-settings').data('selectBox-settings', null)
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.show();
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};
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var refresh = function(select) {
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select = $(select);
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select.selectBox('options', select.html());
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};
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var showMenu = function(select) {
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select = $(select);
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var control = select.data('selectBox-control'),
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settings = select.data('selectBox-settings'),
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options = control.data('selectBox-options');
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if( control.hasClass('selectBox-disabled') ) return false;
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hideMenus();
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var borderBottomWidth = isNaN(control.css('borderBottomWidth')) ? 0 : parseInt(control.css('borderBottomWidth'));
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// Menu position
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options
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.css('min-width', control.innerWidth())
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.css({
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top: control.offset().top + control.outerHeight() - borderBottomWidth,
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left: control.offset().left
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});
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if( select.triggerHandler('beforeopen') ) return false;
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var dispatchOpenEvent = function() {
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select.triggerHandler('open', { _selectBox: true });
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};
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// Show menu
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switch( settings.menuTransition ) {
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case 'fade':
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options.fadeIn(settings.menuSpeed, dispatchOpenEvent);
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break;
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case 'slide':
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options.slideDown(settings.menuSpeed, dispatchOpenEvent);
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break;
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default:
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options.show(settings.menuSpeed, dispatchOpenEvent);
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break;
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}
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if( !settings.menuSpeed ) dispatchOpenEvent();
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// Center on selected option
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var li = options.find('.selectBox-selected:first');
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keepOptionInView(select, li, true);
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addHover(select, li);
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control.addClass('selectBox-menuShowing');
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$(document).bind('mousedown.selectBox', function(event) {
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if( $(event.target).parents().andSelf().hasClass('selectBox-options') ) return;
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hideMenus();
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});
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};
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var hideMenus = function() {
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if( $(".selectBox-dropdown-menu:visible").length === 0 ) return;
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$(document).unbind('mousedown.selectBox');
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$(".selectBox-dropdown-menu").each( function() {
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var options = $(this),
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select = options.data('selectBox-select'),
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control = select.data('selectBox-control'),
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settings = select.data('selectBox-settings');
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if( select.triggerHandler('beforeclose') ) return false;
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var dispatchCloseEvent = function() {
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select.triggerHandler('close', { _selectBox: true });
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};
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switch( settings.menuTransition ) {
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case 'fade':
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options.fadeOut(settings.menuSpeed, dispatchCloseEvent);
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break;
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case 'slide':
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options.slideUp(settings.menuSpeed, dispatchCloseEvent);
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break;
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default:
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options.hide(settings.menuSpeed, dispatchCloseEvent);
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break;
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}
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if( !settings.menuSpeed ) dispatchCloseEvent();
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control.removeClass('selectBox-menuShowing');
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});
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};
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var selectOption = function(select, li, event) {
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select = $(select);
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li = $(li);
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var control = select.data('selectBox-control'),
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settings = select.data('selectBox-settings');
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if( control.hasClass('selectBox-disabled') ) return false;
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if( li.length === 0 || li.hasClass('selectBox-disabled') ) return false;
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if( select.attr('multiple') ) {
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// If event.shiftKey is true, this will select all options between li and the last li selected
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if( event.shiftKey && control.data('selectBox-last-selected') ) {
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li.toggleClass('selectBox-selected');
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var affectedOptions;
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if( li.index() > control.data('selectBox-last-selected').index() ) {
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affectedOptions = li.siblings().slice(control.data('selectBox-last-selected').index(), li.index());
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} else {
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affectedOptions = li.siblings().slice(li.index(), control.data('selectBox-last-selected').index());
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}
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affectedOptions = affectedOptions.not('.selectBox-optgroup, .selectBox-disabled');
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if( li.hasClass('selectBox-selected') ) {
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affectedOptions.addClass('selectBox-selected');
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} else {
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affectedOptions.removeClass('selectBox-selected');
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}
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} else if( (isMac && event.metaKey) || (!isMac && event.ctrlKey) ) {
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li.toggleClass('selectBox-selected');
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} else {
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li.siblings().removeClass('selectBox-selected');
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li.addClass('selectBox-selected');
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}
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} else {
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li.siblings().removeClass('selectBox-selected');
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li.addClass('selectBox-selected');
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}
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if( control.hasClass('selectBox-dropdown') ) {
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control.find('.selectBox-label').text(li.text());
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}
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// Update original control's value
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var i = 0, selection = [];
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if( select.attr('multiple') ) {
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control.find('.selectBox-selected A').each( function() {
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selection[i++] = $(this).attr('rel');
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});
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} else {
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selection = li.find('A').attr('rel');
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}
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// Remember most recently selected item
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control.data('selectBox-last-selected', li);
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// Change callback
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if( select.val() !== selection ) {
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select.val(selection);
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setLabel(select);
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select.trigger('change');
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}
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return true;
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};
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var addHover = function(select, li) {
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select = $(select);
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li = $(li);
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var control = select.data('selectBox-control'),
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options = control.data('selectBox-options');
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options.find('.selectBox-hover').removeClass('selectBox-hover');
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li.addClass('selectBox-hover');
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};
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var removeHover = function(select, li) {
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select = $(select);
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li = $(li);
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var control = select.data('selectBox-control'),
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options = control.data('selectBox-options');
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options.find('.selectBox-hover').removeClass('selectBox-hover');
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};
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var keepOptionInView = function(select, li, center) {
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if( !li || li.length === 0 ) return;
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select = $(select);
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var control = select.data('selectBox-control'),
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options = control.data('selectBox-options'),
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scrollBox = control.hasClass('selectBox-dropdown') ? options : options.parent(),
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top = parseInt(li.offset().top - scrollBox.position().top),
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bottom = parseInt(top + li.outerHeight());
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if( center ) {
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scrollBox.scrollTop( li.offset().top - scrollBox.offset().top + scrollBox.scrollTop() - (scrollBox.height() / 2) );
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} else {
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if( top < 0 ) {
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scrollBox.scrollTop( li.offset().top - scrollBox.offset().top + scrollBox.scrollTop() );
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}
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if( bottom > scrollBox.height() ) {
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scrollBox.scrollTop( (li.offset().top + li.outerHeight()) - scrollBox.offset().top + scrollBox.scrollTop() - scrollBox.height() );
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}
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}
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};
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var handleKeyDown = function(select, event) {
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//
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// Handles open/close and arrow key functionality
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//
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select = $(select);
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var control = select.data('selectBox-control'),
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options = control.data('selectBox-options'),
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settings = select.data('selectBox-settings'),
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totalOptions = 0,
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i = 0;
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if( control.hasClass('selectBox-disabled') ) return;
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switch( event.keyCode ) {
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case 8: // backspace
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event.preventDefault();
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typeSearch = '';
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break;
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case 9: // tab
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case 27: // esc
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hideMenus();
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removeHover(select);
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break;
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case 13: // enter
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if( control.hasClass('selectBox-menuShowing') ) {
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selectOption(select, options.find('LI.selectBox-hover:first'), event);
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if( control.hasClass('selectBox-dropdown') ) hideMenus();
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} else {
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showMenu(select);
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}
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break;
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case 38: // up
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case 37: // left
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event.preventDefault();
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if( control.hasClass('selectBox-menuShowing') ) {
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var prev = options.find('.selectBox-hover').prev('LI');
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totalOptions = options.find('LI:not(.selectBox-optgroup)').length;
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i = 0;
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while( prev.length === 0 || prev.hasClass('selectBox-disabled') || prev.hasClass('selectBox-optgroup') ) {
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prev = prev.prev('LI');
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if( prev.length === 0 ) {
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if (settings.loopOptions) {
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prev = options.find('LI:last');
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} else {
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prev = options.find('LI:first');
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}
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}
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if( ++i >= totalOptions ) break;
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}
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addHover(select, prev);
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selectOption(select, prev, event);
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keepOptionInView(select, prev);
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} else {
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showMenu(select);
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}
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break;
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case 40: // down
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case 39: // right
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event.preventDefault();
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if( control.hasClass('selectBox-menuShowing') ) {
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var next = options.find('.selectBox-hover').next('LI');
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totalOptions = options.find('LI:not(.selectBox-optgroup)').length;
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i = 0;
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while( next.length === 0 || next.hasClass('selectBox-disabled') || next.hasClass('selectBox-optgroup') ) {
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next = next.next('LI');
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if( next.length === 0 ) {
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if (settings.loopOptions) {
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next = options.find('LI:first');
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} else {
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next = options.find('LI:last');
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}
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}
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if( ++i >= totalOptions ) break;
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}
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addHover(select, next);
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selectOption(select, next, event);
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keepOptionInView(select, next);
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} else {
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showMenu(select);
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}
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break;
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}
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};
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var handleKeyPress = function(select, event) {
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//
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// Handles type-to-find functionality
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//
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select = $(select);
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var control = select.data('selectBox-control'),
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options = control.data('selectBox-options');
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if( control.hasClass('selectBox-disabled') ) return;
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switch( event.keyCode ) {
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case 9: // tab
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case 27: // esc
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case 13: // enter
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case 38: // up
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case 37: // left
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case 40: // down
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case 39: // right
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// Don't interfere with the keydown event!
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break;
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default: // Type to find
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if( !control.hasClass('selectBox-menuShowing') ) showMenu(select);
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event.preventDefault();
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clearTimeout(typeTimer);
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typeSearch += String.fromCharCode(event.charCode || event.keyCode);
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options.find('A').each( function() {
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if( $(this).text().substr(0, typeSearch.length).toLowerCase() === typeSearch.toLowerCase() ) {
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addHover(select, $(this).parent());
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keepOptionInView(select, $(this).parent());
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return false;
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}
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});
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// Clear after a brief pause
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typeTimer = setTimeout( function() { typeSearch = ''; }, 1000);
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break;
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}
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};
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var enable = function(select) {
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select = $(select);
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select.attr('disabled', false);
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var control = select.data('selectBox-control');
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if( !control ) return;
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control.removeClass('selectBox-disabled');
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};
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var disable = function(select) {
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select = $(select);
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select.attr('disabled', true);
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var control = select.data('selectBox-control');
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if( !control ) return;
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control.addClass('selectBox-disabled');
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};
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var setValue = function(select, value) {
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select = $(select);
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select.val(value);
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value = select.val();
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var control = select.data('selectBox-control');
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if( !control ) return;
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var settings = select.data('selectBox-settings'),
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options = control.data('selectBox-options');
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// Update label
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setLabel(select);
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// Update control values
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options.find('.selectBox-selected').removeClass('selectBox-selected');
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options.find('A').each( function() {
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if( typeof(value) === 'object' ) {
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for( var i = 0; i < value.length; i++ ) {
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if( $(this).attr('rel') == value[i] ) {
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$(this).parent().addClass('selectBox-selected');
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}
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}
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} else {
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if( $(this).attr('rel') == value ) {
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$(this).parent().addClass('selectBox-selected');
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}
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}
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});
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if( settings.change ) settings.change.call(select);
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};
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var setOptions = function(select, options) {
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select = $(select);
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var control = select.data('selectBox-control'),
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settings = select.data('selectBox-settings');
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switch( typeof(data) ) {
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case 'string':
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select.html(data);
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break;
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case 'object':
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select.html('');
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for( var i in data ) {
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if( data[i] === null ) continue;
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if( typeof(data[i]) === 'object' ) {
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var optgroup = $('<optgroup label="' + i + '" />');
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for( var j in data[i] ) {
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optgroup.append('<option value="' + j + '">' + data[i][j] + '</option>');
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}
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select.append(optgroup);
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} else {
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var option = $('<option value="' + i + '">' + data[i] + '</option>');
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select.append(option);
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}
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}
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break;
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}
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if( !control ) return;
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// Remove old options
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control.data('selectBox-options').remove();
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// Generate new options
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var type = control.hasClass('selectBox-dropdown') ? 'dropdown' : 'inline';
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options = getOptions(select, type);
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control.data('selectBox-options', options);
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switch( type ) {
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case 'inline':
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control.append(options);
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break;
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case 'dropdown':
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// Update label
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setLabel(select);
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$("BODY").append(options);
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break;
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}
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};
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var disableSelection = function(selector) {
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$(selector)
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.css('MozUserSelect', 'none')
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.bind('selectstart', function(event) {
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event.preventDefault();
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});
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};
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var generateOptions = function(self, options){
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var li = $('<li />'),
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a = $('<a />');
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li.addClass( self.attr('class') );
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li.data( self.data() );
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a.attr('rel', self.val()).text( self.text() );
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li.append(a);
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if( self.attr('disabled') ) li.addClass('selectBox-disabled');
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if( self.attr('selected') ) li.addClass('selectBox-selected');
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options.append(li);
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};
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//
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// Public methods
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//
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switch( method ) {
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case 'control':
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return $(this).data('selectBox-control');
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case 'settings':
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if( !data ) return $(this).data('selectBox-settings');
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$(this).each( function() {
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$(this).data('selectBox-settings', $.extend(true, $(this).data('selectBox-settings'), data));
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});
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break;
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case 'options':
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// Getter
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if( data === undefined ) return $(this).data('selectBox-control').data('selectBox-options');
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// Setter
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$(this).each( function() {
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setOptions(this, data);
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});
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break;
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case 'value':
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// Empty string is a valid value
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if( data === undefined ) return $(this).val();
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$(this).each( function() {
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setValue(this, data);
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});
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break;
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case 'refresh':
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$(this).each( function() {
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refresh(this);
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});
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break;
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case 'enable':
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$(this).each( function() {
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enable(this);
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});
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break;
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case 'disable':
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$(this).each( function() {
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disable(this);
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});
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break;
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case 'destroy':
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$(this).each( function() {
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destroy(this);
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});
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break;
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default:
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$(this).each( function() {
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init(this, method);
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});
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break;
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}
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return $(this);
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}
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});
|
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})(jQuery); |