+++ /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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