1/* 2 * sf-Touchscreen v1.3b - Provides touchscreen compatibility for the jQuery Superfish plugin. 3 * 4 * Developer's note: 5 * Built as a part of the Superfish project for Drupal (http://drupal.org/project/superfish) 6 * Found any bug? have any cool ideas? contact me right away! http://drupal.org/user/619294/contact 7 * 8 * jQuery version: 1.3.x or higher. 9 * 10 * Dual licensed under the MIT and GPL licenses: 11 * http://www.opensource.org/licenses/mit-license.php 12 * http://www.gnu.org/licenses/gpl.html 13 */ 14 15(function($){ 16 $.fn.sftouchscreen = function(options){ 17 options = $.extend({ 18 mode: 'inactive', 19 breakpoint: 768, 20 breakpointUnit: 'px', 21 useragent: '', 22 behaviour: 2, 23 disableHover: false 24 }, options); 25 26 function activate(menu){ 27 var eventHandler = (('ontouchstart' in window) || (window.DocumentTouch && document instanceof DocumentTouch)) ? ['click touchstart','mouseup touchend'] : ['click','mouseup']; 28 // Select hyperlinks from parent menu items. 29 menu.find('li:has(ul)').children('a,span.nolink').each(function(){ 30 var item = $(this), 31 parent = item.closest('li'); 32 if (options.disableHover){ 33 parent.unbind('mouseenter mouseleave'); 34 } 35 if (options.behaviour == 2){ 36 if (parent.children('a.menuparent,span.nolink.menuparent').length > 0 && parent.children('ul').children('.sf-clone-parent').length == 0){ 37 var 38 // Cloning the hyperlink of the parent menu item. 39 cloneLink = parent.children('a.menuparent,span.nolink.menuparent').clone(), 40 // Wrapping the hyerplinks in <li>. 41 cloneLink = $('<li class="sf-clone-parent" />').html(cloneLink); 42 // Removing unnecessary stuff. 43 cloneLink.find('.sf-sub-indicator').remove(), 44 // Adding a helper class and attaching them to the sub-menus. 45 parent.children('ul').addClass('sf-has-clone-parent').prepend(cloneLink); 46 } 47 } 48 // No .toggle() here as it's not possible to reset it. 49 item.bind(eventHandler[0], function(event){ 50 // Already clicked? 51 if (item.hasClass('sf-clicked')){ 52 // Depending on the preferred behaviour, either proceed to the URL. 53 if (options.behaviour == 0){ 54 window.location = item.attr('href'); 55 } 56 // or collapse the sub-menu. 57 else if (options.behaviour == 1 || options.behaviour == 2){ 58 event.preventDefault(); 59 item.removeClass('sf-clicked'); 60 parent.hideSuperfishUl().find('a,span.nolink').removeClass('sf-clicked'); 61 } 62 } 63 // Prevent the default action otherwise. 64 else { 65 event.preventDefault(); 66 item.addClass('sf-clicked'); 67 parent.showSuperfishUl().siblings('li:has(ul)').hideSuperfishUl().find('.sf-clicked').removeClass('sf-clicked'); 68 } 69 }); 70 }); 71 72 $(document).bind(eventHandler[1], function(event){ 73 if (menu.not(event.target) && menu.has(event.target).length === 0){ 74 menu.find('.sf-clicked').removeClass('sf-clicked'); 75 menu.find('li:has(ul)').hideSuperfishUl(); 76 } 77 }); 78 } 79 // Return original object to support chaining. 80 // This is not necessary actually because of the way the module uses these plugins. 81 for (var b = 0; b < this.length; b++) { 82 var menu = $(this).eq(b), 83 mode = options.mode; 84 // The rest is crystal clear, isn't it? :) 85 if (mode == 'always_active'){ 86 activate(menu); 87 } 88 else if (mode == 'window_width'){ 89 var breakpoint = (options.breakpointUnit == 'em') ? (options.breakpoint * parseFloat($('body').css('font-size'))) : options.breakpoint, 90 windowWidth = window.innerWidth || document.documentElement.clientWidth || document.body.clientWidth, 91 timer; 92 if ((typeof Modernizr === 'undefined' || typeof Modernizr.mq !== 'function') && windowWidth < breakpoint){ 93 activate(menu); 94 } 95 else if (typeof Modernizr !== 'undefined' && typeof Modernizr.mq === 'function' && Modernizr.mq('(max-width:' + (breakpoint - 1) + 'px)')) { 96 activate(menu); 97 } 98 $(window).resize(function(){ 99 clearTimeout(timer); 100 timer = setTimeout(function(){ 101 var windowWidth = window.innerWidth || document.documentElement.clientWidth || document.body.clientWidth; 102 if ((typeof Modernizr === 'undefined' || typeof Modernizr.mq !== 'function') && windowWidth < breakpoint){ 103 activate(menu); 104 } 105 else if (typeof Modernizr !== 'undefined' && typeof Modernizr.mq === 'function' && Modernizr.mq('(max-width:' + (breakpoint - 1) + 'px)')) { 106 activate(menu); 107 } 108 }, 50); 109 }); 110 } 111 else if (mode == 'useragent_custom'){ 112 if (options.useragent != ''){ 113 var ua = RegExp(options.useragent, 'i'); 114 if (navigator.userAgent.match(ua)){ 115 activate(menu); 116 } 117 } 118 } 119 else if (mode == 'useragent_predefined' && navigator.userAgent.match(/(android|bb\d+|meego)|avantgo|bada\/|blackberry|blazer|compal|elaine|fennec|hiptop|iemobile|ip(hone|od)|iris|kindle|lge |maemo|midp|mmp|netfront|opera m(ob|in)i|palm( os)?|phone|p(ixi|re)\/|plucker|pocket|psp|series(4|6)0|symbian|treo|up\.(browser|link)|vodafone|wap|windows (ce|phone)|xda|xiino/i)){ 120 activate(menu); 121 } 122 } 123 return this; 124 } 125})(jQuery);
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