--- /dev/null
+/*
+ * Twenty Fourteen Featured Content Slider
+ *
+ * Adapted from FlexSlider v2.2.0, copyright 2012 WooThemes
+ * @link http://www.woothemes.com/flexslider/
+ */
+/* global DocumentTouch:true,setImmediate:true,featuredSliderDefaults:true,MSGesture:true */
+( function( $ ) {
+ // FeaturedSlider: object instance.
+ $.featuredslider = function( el, options ) {
+ var slider = $( el ),
+ msGesture = window.navigator && window.navigator.msPointerEnabled && window.MSGesture,
+ touch = ( ( 'ontouchstart' in window ) || msGesture || window.DocumentTouch && document instanceof DocumentTouch ), // MSFT specific.
+ eventType = 'click touchend MSPointerUp',
+ watchedEvent = '',
+ watchedEventClearTimer,
+ methods = {},
+ namespace;
+
+ // Make variables public.
+ slider.vars = $.extend( {}, $.featuredslider.defaults, options );
+
+ namespace = slider.vars.namespace,
+
+ // Store a reference to the slider object.
+ $.data( el, 'featuredslider', slider );
+
+ // Private slider methods.
+ methods = {
+ init: function() {
+ slider.animating = false;
+ slider.currentSlide = 0;
+ slider.animatingTo = slider.currentSlide;
+ slider.atEnd = ( slider.currentSlide === 0 || slider.currentSlide === slider.last );
+ slider.containerSelector = slider.vars.selector.substr( 0, slider.vars.selector.search( ' ' ) );
+ slider.slides = $( slider.vars.selector, slider );
+ slider.container = $( slider.containerSelector, slider );
+ slider.count = slider.slides.length;
+ slider.prop = 'marginLeft';
+ slider.isRtl = $( 'body' ).hasClass( 'rtl' );
+ slider.args = {};
+ // TOUCH
+ slider.transitions = ( function() {
+ var obj = document.createElement( 'div' ),
+ props = ['perspectiveProperty', 'WebkitPerspective', 'MozPerspective', 'OPerspective', 'msPerspective'],
+ i;
+
+ for ( i in props ) {
+ if ( obj.style[ props[i] ] !== undefined ) {
+ slider.pfx = props[i].replace( 'Perspective', '' ).toLowerCase();
+ slider.prop = '-' + slider.pfx + '-transform';
+ return true;
+ }
+ }
+ return false;
+ }() );
+ // CONTROLSCONTAINER
+ if ( slider.vars.controlsContainer !== '' ) {
+ slider.controlsContainer = $( slider.vars.controlsContainer ).length > 0 && $( slider.vars.controlsContainer );
+ }
+
+ slider.doMath();
+
+ // INIT
+ slider.setup( 'init' );
+
+ // CONTROLNAV
+ methods.controlNav.setup();
+
+ // DIRECTIONNAV
+ methods.directionNav.setup();
+
+ // KEYBOARD
+ if ( $( slider.containerSelector ).length === 1 ) {
+ $( document ).bind( 'keyup', function( event ) {
+ var keycode = event.keyCode,
+ target = false;
+ if ( ! slider.animating && ( keycode === 39 || keycode === 37 ) ) {
+ if ( keycode === 39 ) {
+ target = slider.getTarget( 'next' );
+ } else if ( keycode === 37 ) {
+ target = slider.getTarget( 'prev' );
+ }
+
+ slider.featureAnimate( target );
+ }
+ } );
+ }
+
+ // TOUCH
+ if ( touch ) {
+ methods.touch();
+ }
+
+ $( window ).bind( 'resize orientationchange focus', methods.resize );
+
+ slider.find( 'img' ).attr( 'draggable', 'false' );
+ },
+
+ controlNav: {
+ setup: function() {
+ methods.controlNav.setupPaging();
+ },
+ setupPaging: function() {
+ var type = 'control-paging',
+ j = 1,
+ item,
+ slide,
+ i;
+
+ slider.controlNavScaffold = $( '<ol class="' + namespace + 'control-nav ' + namespace + type + '"></ol>' );
+
+ if ( slider.pagingCount > 1 ) {
+ for ( i = 0; i < slider.pagingCount; i++ ) {
+ slide = slider.slides.eq( i );
+ item = '<a>' + j + '</a>';
+ slider.controlNavScaffold.append( '<li>' + item + '</li>' );
+ j++;
+ }
+ }
+
+ // CONTROLSCONTAINER
+ ( slider.controlsContainer ) ? $( slider.controlsContainer ).append( slider.controlNavScaffold ) : slider.append( slider.controlNavScaffold );
+ methods.controlNav.set();
+
+ methods.controlNav.active();
+
+ slider.controlNavScaffold.delegate( 'a, img', eventType, function( event ) {
+ event.preventDefault();
+
+ if ( watchedEvent === '' || watchedEvent === event.type ) {
+ var $this = $( this ),
+ target = slider.controlNav.index( $this );
+
+ if ( ! $this.hasClass( namespace + 'active' ) ) {
+ slider.direction = ( target > slider.currentSlide ) ? 'next' : 'prev';
+ slider.featureAnimate( target );
+ }
+ }
+
+ // Set up flags to prevent event duplication.
+ if ( watchedEvent === '' ) {
+ watchedEvent = event.type;
+ }
+
+ methods.setToClearWatchedEvent();
+ } );
+ },
+ set: function() {
+ var selector = 'a';
+ slider.controlNav = $( '.' + namespace + 'control-nav li ' + selector, ( slider.controlsContainer ) ? slider.controlsContainer : slider );
+ },
+ active: function() {
+ slider.controlNav.removeClass( namespace + 'active' ).eq( slider.animatingTo ).addClass( namespace + 'active' );
+ },
+ update: function( action, pos ) {
+ if ( slider.pagingCount > 1 && action === 'add' ) {
+ slider.controlNavScaffold.append( $( '<li><a>' + slider.count + '</a></li>' ) );
+ } else if ( slider.pagingCount === 1 ) {
+ slider.controlNavScaffold.find( 'li' ).remove();
+ } else {
+ slider.controlNav.eq( pos ).closest( 'li' ).remove();
+ }
+ methods.controlNav.set();
+ ( slider.pagingCount > 1 && slider.pagingCount !== slider.controlNav.length ) ? slider.update( pos, action ) : methods.controlNav.active();
+ }
+ },
+
+ directionNav: {
+ setup: function() {
+ var directionNavScaffold = $( '<ul class="' + namespace + 'direction-nav"><li><a class="' + namespace + 'prev" href="#">' + slider.vars.prevText + '</a></li><li><a class="' + namespace + 'next" href="#">' + slider.vars.nextText + '</a></li></ul>' );
+
+ // CONTROLSCONTAINER
+ if ( slider.controlsContainer ) {
+ $( slider.controlsContainer ).append( directionNavScaffold );
+ slider.directionNav = $( '.' + namespace + 'direction-nav li a', slider.controlsContainer );
+ } else {
+ slider.append( directionNavScaffold );
+ slider.directionNav = $( '.' + namespace + 'direction-nav li a', slider );
+ }
+
+ methods.directionNav.update();
+
+ slider.directionNav.bind( eventType, function( event ) {
+ event.preventDefault();
+ var target;
+
+ if ( watchedEvent === '' || watchedEvent === event.type ) {
+ target = ( $( this ).hasClass( namespace + 'next' ) ) ? slider.getTarget( 'next' ) : slider.getTarget( 'prev' );
+ slider.featureAnimate( target );
+ }
+
+ // Set up flags to prevent event duplication.
+ if ( watchedEvent === '' ) {
+ watchedEvent = event.type;
+ }
+
+ methods.setToClearWatchedEvent();
+ } );
+ },
+ update: function() {
+ var disabledClass = namespace + 'disabled';
+ if ( slider.pagingCount === 1 ) {
+ slider.directionNav.addClass( disabledClass ).attr( 'tabindex', '-1' );
+ } else {
+ slider.directionNav.removeClass( disabledClass ).removeAttr( 'tabindex' );
+ }
+ }
+ },
+
+ touch: function() {
+ var startX,
+ startY,
+ offset,
+ cwidth,
+ dx,
+ startT,
+ scrolling = false,
+ localX = 0,
+ localY = 0,
+ accDx = 0;
+
+ if ( ! msGesture ) {
+ el.addEventListener( 'touchstart', onTouchStart, false );
+ } else {
+ el.style.msTouchAction = 'none';
+ el._gesture = new MSGesture(); // MSFT specific.
+ el._gesture.target = el;
+ el.addEventListener( 'MSPointerDown', onMSPointerDown, false );
+ el._slider = slider;
+ el.addEventListener( 'MSGestureChange', onMSGestureChange, false );
+ el.addEventListener( 'MSGestureEnd', onMSGestureEnd, false );
+ }
+
+ function onTouchStart( e ) {
+ if ( slider.animating ) {
+ e.preventDefault();
+ } else if ( ( window.navigator.msPointerEnabled ) || e.touches.length === 1 ) {
+ cwidth = slider.w;
+ startT = Number( new Date() );
+
+ // Local vars for X and Y points.
+ localX = e.touches[0].pageX;
+ localY = e.touches[0].pageY;
+
+ offset = ( slider.currentSlide + slider.cloneOffset ) * cwidth;
+ if ( slider.animatingTo === slider.last && slider.direction !== 'next' ) {
+ offset = 0;
+ }
+
+ startX = localX;
+ startY = localY;
+
+ el.addEventListener( 'touchmove', onTouchMove, false );
+ el.addEventListener( 'touchend', onTouchEnd, false );
+ }
+ }
+
+ function onTouchMove( e ) {
+ // Local vars for X and Y points.
+ localX = e.touches[0].pageX;
+ localY = e.touches[0].pageY;
+
+ dx = startX - localX;
+ scrolling = Math.abs( dx ) < Math.abs( localY - startY );
+
+ if ( ! scrolling ) {
+ e.preventDefault();
+ if ( slider.transitions ) {
+ slider.setProps( offset + dx, 'setTouch' );
+ }
+ }
+ }
+
+ function onTouchEnd() {
+ // Finish the touch by undoing the touch session.
+ el.removeEventListener( 'touchmove', onTouchMove, false );
+
+ if ( slider.animatingTo === slider.currentSlide && ! scrolling && dx !== null ) {
+ var updateDx = dx,
+ target = ( updateDx > 0 ) ? slider.getTarget( 'next' ) : slider.getTarget( 'prev' );
+
+ slider.featureAnimate( target );
+ }
+ el.removeEventListener( 'touchend', onTouchEnd, false );
+
+ startX = null;
+ startY = null;
+ dx = null;
+ offset = null;
+ }
+
+ function onMSPointerDown( e ) {
+ e.stopPropagation();
+ if ( slider.animating ) {
+ e.preventDefault();
+ } else {
+ el._gesture.addPointer( e.pointerId );
+ accDx = 0;
+ cwidth = slider.w;
+ startT = Number( new Date() );
+ offset = ( slider.currentSlide + slider.cloneOffset ) * cwidth;
+ if ( slider.animatingTo === slider.last && slider.direction !== 'next' ) {
+ offset = 0;
+ }
+ }
+ }
+
+ function onMSGestureChange( e ) {
+ e.stopPropagation();
+ var slider = e.target._slider,
+ transX,
+ transY;
+ if ( ! slider ) {
+ return;
+ }
+
+ transX = -e.translationX,
+ transY = -e.translationY;
+
+ // Accumulate translations.
+ accDx = accDx + transX;
+ dx = accDx;
+ scrolling = Math.abs( accDx ) < Math.abs( -transY );
+
+ if ( e.detail === e.MSGESTURE_FLAG_INERTIA ) {
+ setImmediate( function () { // MSFT specific.
+ el._gesture.stop();
+ } );
+
+ return;
+ }
+
+ if ( ! scrolling || Number( new Date() ) - startT > 500 ) {
+ e.preventDefault();
+ if ( slider.transitions ) {
+ slider.setProps( offset + dx, 'setTouch' );
+ }
+ }
+ }
+
+ function onMSGestureEnd( e ) {
+ e.stopPropagation();
+ var slider = e.target._slider,
+ updateDx,
+ target;
+ if ( ! slider ) {
+ return;
+ }
+
+ if ( slider.animatingTo === slider.currentSlide && ! scrolling && dx !== null ) {
+ updateDx = dx,
+ target = ( updateDx > 0 ) ? slider.getTarget( 'next' ) : slider.getTarget( 'prev' );
+
+ slider.featureAnimate( target );
+ }
+
+ startX = null;
+ startY = null;
+ dx = null;
+ offset = null;
+ accDx = 0;
+ }
+ },
+
+ resize: function() {
+ if ( ! slider.animating && slider.is( ':visible' ) ) {
+ slider.doMath();
+
+ // SMOOTH HEIGHT
+ methods.smoothHeight();
+ slider.newSlides.width( slider.computedW );
+ slider.setProps( slider.computedW, 'setTotal' );
+ }
+ },
+
+ smoothHeight: function( dur ) {
+ var $obj = slider.viewport;
+ ( dur ) ? $obj.animate( { 'height': slider.slides.eq( slider.animatingTo ).height() }, dur ) : $obj.height( slider.slides.eq( slider.animatingTo ).height() );
+ },
+
+ setToClearWatchedEvent: function() {
+ clearTimeout( watchedEventClearTimer );
+ watchedEventClearTimer = setTimeout( function() {
+ watchedEvent = '';
+ }, 3000 );
+ }
+ };
+
+ // Public methods.
+ slider.featureAnimate = function( target ) {
+ if ( target !== slider.currentSlide ) {
+ slider.direction = ( target > slider.currentSlide ) ? 'next' : 'prev';
+ }
+
+ if ( ! slider.animating && slider.is( ':visible' ) ) {
+ slider.animating = true;
+ slider.animatingTo = target;
+
+ // CONTROLNAV
+ methods.controlNav.active();
+
+ slider.slides.removeClass( namespace + 'active-slide' ).eq( target ).addClass( namespace + 'active-slide' );
+
+ slider.atEnd = target === 0 || target === slider.last;
+
+ // DIRECTIONNAV
+ methods.directionNav.update();
+
+ var dimension = slider.computedW,
+ slideString;
+
+ if ( slider.currentSlide === 0 && target === slider.count - 1 && slider.direction !== 'next' ) {
+ slideString = 0;
+ } else if ( slider.currentSlide === slider.last && target === 0 && slider.direction !== 'prev' ) {
+ slideString = ( slider.count + 1 ) * dimension;
+ } else {
+ slideString = ( target + slider.cloneOffset ) * dimension;
+ }
+ slider.setProps( slideString, '', slider.vars.animationSpeed );
+ if ( slider.transitions ) {
+ if ( ! slider.atEnd ) {
+ slider.animating = false;
+ slider.currentSlide = slider.animatingTo;
+ }
+ slider.container.unbind( 'webkitTransitionEnd transitionend' );
+ slider.container.bind( 'webkitTransitionEnd transitionend', function() {
+ slider.wrapup( dimension );
+ } );
+ } else {
+ slider.container.animate( slider.args, slider.vars.animationSpeed, 'swing', function() {
+ slider.wrapup( dimension );
+ } );
+ }
+
+ // SMOOTH HEIGHT
+ methods.smoothHeight( slider.vars.animationSpeed );
+ }
+ };
+
+ slider.wrapup = function( dimension ) {
+ if ( slider.currentSlide === 0 && slider.animatingTo === slider.last ) {
+ slider.setProps( dimension, 'jumpEnd' );
+ } else if ( slider.currentSlide === slider.last && slider.animatingTo === 0 ) {
+ slider.setProps( dimension, 'jumpStart' );
+ }
+ slider.animating = false;
+ slider.currentSlide = slider.animatingTo;
+ };
+
+ slider.getTarget = function( dir ) {
+ slider.direction = dir;
+
+ // Swap for RTL.
+ if ( slider.isRtl ) {
+ dir = 'next' === dir ? 'prev' : 'next';
+ }
+
+ if ( dir === 'next' ) {
+ return ( slider.currentSlide === slider.last ) ? 0 : slider.currentSlide + 1;
+ } else {
+ return ( slider.currentSlide === 0 ) ? slider.last : slider.currentSlide - 1;
+ }
+ };
+
+ slider.setProps = function( pos, special, dur ) {
+ var target = ( function() {
+ var posCalc = ( function() {
+ switch ( special ) {
+ case 'setTotal': return ( slider.currentSlide + slider.cloneOffset ) * pos;
+ case 'setTouch': return pos;
+ case 'jumpEnd': return slider.count * pos;
+ case 'jumpStart': return pos;
+ default: return pos;
+ }
+ }() );
+
+ return ( posCalc * -1 ) + 'px';
+ }() );
+
+ if ( slider.transitions ) {
+ target = 'translate3d(' + target + ',0,0 )';
+ dur = ( dur !== undefined ) ? ( dur / 1000 ) + 's' : '0s';
+ slider.container.css( '-' + slider.pfx + '-transition-duration', dur );
+ }
+
+ slider.args[slider.prop] = target;
+ if ( slider.transitions || dur === undefined ) {
+ slider.container.css( slider.args );
+ }
+ };
+
+ slider.setup = function( type ) {
+ var sliderOffset;
+
+ if ( type === 'init' ) {
+ slider.viewport = $( '<div class="' + namespace + 'viewport"></div>' ).css( { 'overflow': 'hidden', 'position': 'relative' } ).appendTo( slider ).append( slider.container );
+ slider.cloneCount = 0;
+ slider.cloneOffset = 0;
+ }
+ slider.cloneCount = 2;
+ slider.cloneOffset = 1;
+ // Clear out old clones.
+ if ( type !== 'init' ) {
+ slider.container.find( '.clone' ).remove();
+ }
+
+ slider.container.append( slider.slides.first().clone().addClass( 'clone' ).attr( 'aria-hidden', 'true' ) ).prepend( slider.slides.last().clone().addClass( 'clone' ).attr( 'aria-hidden', 'true' ) );
+ slider.newSlides = $( slider.vars.selector, slider );
+
+ sliderOffset = slider.currentSlide + slider.cloneOffset;
+ slider.container.width( ( slider.count + slider.cloneCount ) * 200 + '%' );
+ slider.setProps( sliderOffset * slider.computedW, 'init' );
+ setTimeout( function() {
+ slider.doMath();
+ slider.newSlides.css( { 'width': slider.computedW, 'float': 'left', 'display': 'block' } );
+ // SMOOTH HEIGHT
+ methods.smoothHeight();
+ }, ( type === 'init' ) ? 100 : 0 );
+
+ slider.slides.removeClass( namespace + 'active-slide' ).eq( slider.currentSlide ).addClass( namespace + 'active-slide' );
+ };
+
+ slider.doMath = function() {
+ var slide = slider.slides.first();
+
+ slider.w = ( slider.viewport===undefined ) ? slider.width() : slider.viewport.width();
+ slider.h = slide.height();
+ slider.boxPadding = slide.outerWidth() - slide.width();
+
+ slider.itemW = slider.w;
+ slider.pagingCount = slider.count;
+ slider.last = slider.count - 1;
+ slider.computedW = slider.itemW - slider.boxPadding;
+ };
+
+ slider.update = function( pos, action ) {
+ slider.doMath();
+
+ // Update currentSlide and slider.animatingTo if necessary.
+ if ( pos < slider.currentSlide ) {
+ slider.currentSlide += 1;
+ } else if ( pos <= slider.currentSlide && pos !== 0 ) {
+ slider.currentSlide -= 1;
+ }
+ slider.animatingTo = slider.currentSlide;
+
+ // Update controlNav.
+ if ( action === 'add' || slider.pagingCount > slider.controlNav.length ) {
+ methods.controlNav.update( 'add' );
+ } else if ( action === 'remove' || slider.pagingCount < slider.controlNav.length ) {
+ if ( slider.currentSlide > slider.last ) {
+ slider.currentSlide -= 1;
+ slider.animatingTo -= 1;
+ }
+ methods.controlNav.update( 'remove', slider.last );
+ }
+ // Update directionNav.
+ methods.directionNav.update();
+ };
+
+ // FeaturedSlider: initialize.
+ methods.init();
+ };
+
+ // Default settings.
+ $.featuredslider.defaults = {
+ namespace: 'slider-', // String: prefix string attached to the class of every element generated by the plugin.
+ selector: '.slides > li', // String: selector, must match a simple pattern.
+ animationSpeed: 600, // Integer: Set the speed of animations, in milliseconds.
+ controlsContainer: '', // jQuery Object/Selector: container navigation to append elements.
+
+ // Text labels.
+ prevText: featuredSliderDefaults.prevText, // String: Set the text for the "previous" directionNav item.
+ nextText: featuredSliderDefaults.nextText // String: Set the text for the "next" directionNav item.
+ };
+
+ // FeaturedSlider: plugin function.
+ $.fn.featuredslider = function( options ) {
+ if ( options === undefined ) {
+ options = {};
+ }
+
+ if ( typeof options === 'object' ) {
+ return this.each( function() {
+ var $this = $( this ),
+ selector = ( options.selector ) ? options.selector : '.slides > li',
+ $slides = $this.find( selector );
+
+ if ( $slides.length === 1 || $slides.length === 0 ) {
+ $slides.fadeIn( 400 );
+ } else if ( $this.data( 'featuredslider' ) === undefined ) {
+ new $.featuredslider( this, options );
+ }
+ } );
+ }
+ };
+} )( jQuery );
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