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/** * jquery.bookblock.js v2.0.1 * http://www.codrops.com * * Licensed under the MIT license. * http://www.opensource.org/licenses/mit-license.php * * Copyright 2013, Codrops * http://www.codrops.com */ ;( function( $, window, undefined ) { 'use strict'; // global var $window = $(window), Modernizr = window.Modernizr; // https://gist.github.com/edankwan/4389601 Modernizr.addTest('csstransformspreserve3d', function () { var prop = Modernizr.prefixed('transformStyle'); var val = 'preserve-3d'; var computedStyle; if(!prop) return false; prop = prop.replace(/([A-Z])/g, function(str,m1){ return '-' + m1.toLowerCase(); }).replace(/^ms-/,'-ms-'); Modernizr.testStyles('#modernizr{' + prop + ':' + val + ';}', function (el, rule) { computedStyle = window.getComputedStyle ? getComputedStyle(el, null).getPropertyValue(prop) : ''; }); return (computedStyle === val); }); /* * debouncedresize: special jQuery event that happens once after a window resize * * latest version and complete README available on Github: * https://github.com/louisremi/jquery-smartresize * * Copyright 2012 @louis_remi * Licensed under the MIT license. * * This saved you an hour of work? * Send me music http://www.amazon.co.uk/wishlist/HNTU0468LQON */ var $event = $.event, $special, resizeTimeout; $special = $event.special.debouncedresize = { setup: function() { $( this ).on( "resize", $special.handler ); }, teardown: function() { $( this ).off( "resize", $special.handler ); }, handler: function( event, execAsap ) { // Save the context var context = this, args = arguments, dispatch = function() { // set correct event type event.type = "debouncedresize"; $event.dispatch.apply( context, args ); }; if ( resizeTimeout ) { clearTimeout( resizeTimeout ); } execAsap ? dispatch() : resizeTimeout = setTimeout( dispatch, $special.threshold ); }, threshold: 150 }; $.BookBlock = function( options, element ) { this.$el = $( element ); this._init( options ); }; // the options $.BookBlock.defaults = { // vertical or horizontal flip orientation : 'vertical', // ltr (left to right) or rtl (right to left) direction : 'ltr', // speed for the flip transition in ms speed : 1000, // easing for the flip transition easing : 'ease-in-out', // if set to true, both the flipping page and the sides will have an overlay to simulate shadows shadows : true, // opacity value for the "shadow" on both sides (when the flipping page is over it) // value : 0.1 - 1 shadowSides : 0.2, // opacity value for the "shadow" on the flipping page (while it is flipping) // value : 0.1 - 1 shadowFlip : 0.1, // if we should show the first item after reaching the end circular : false, // if we want to specify a selector that triggers the next() function. example: ´#bb-nav-next´ nextEl : '', // if we want to specify a selector that triggers the prev() function prevEl : '', // autoplay. If true it overwrites the circular option to true autoplay : false, // time (ms) between page switch, if autoplay is true interval : 3000, // callback after the flip transition // old is the index of the previous item // page is the current item´s index // isLimit is true if the current page is the last one (or the first one) onEndFlip : function(old, page, isLimit) { return false; }, // callback before the flip transition // page is the current item´s index onBeforeFlip : function(page) { return false; } }; $.BookBlock.prototype = { _init : function(options) { // options this.options = $.extend( true, {}, $.BookBlock.defaults, options ); // orientation class this.$el.addClass( 'bb-' + this.options.orientation ); // items this.$items = this.$el.children( '.bb-item' ).hide(); // total items this.itemsCount = this.$items.length; // current item´s index this.current = 0; // previous item´s index this.previous = -1; // show first item this.$current = this.$items.eq( this.current ).show(); // get width of this.$el // this will be necessary to create the flipping layout this.elWidth = this.$el.width(); var transEndEventNames = { 'WebkitTransition': 'webkitTransitionEnd', 'MozTransition': 'transitionend', 'OTransition': 'oTransitionEnd', 'msTransition': 'MSTransitionEnd', 'transition': 'transitionend' }; this.transEndEventName = transEndEventNames[Modernizr.prefixed( 'transition' )] + '.bookblock'; // support css 3d transforms && css transitions && Modernizr.csstransformspreserve3d this.support = Modernizr.csstransitions && Modernizr.csstransforms3d && Modernizr.csstransformspreserve3d; // initialize/bind some events this._initEvents(); // start slideshow if ( this.options.autoplay ) { this.options.circular = true; this._startSlideshow(); } }, _initEvents : function() { var self = this; if ( this.options.nextEl !== '' ) { $( this.options.nextEl ).on( 'click.bookblock touchstart.bookblock', function() { self._action( 'next' ); return false; } ); } if ( this.options.prevEl !== '' ) { $( this.options.prevEl ).on( 'click.bookblock touchstart.bookblock', function() { self._action( 'prev' ); return false; } ); } $window.on( 'debouncedresize', function() { // update width value self.elWidth = self.$el.width(); } ); }, _action : function( dir, page ) { this._stopSlideshow(); this._navigate( dir, page ); }, _navigate : function( dir, page ) { if ( this.isAnimating ) { return false; } // callback trigger this.options.onBeforeFlip( this.current ); this.isAnimating = true; // update current value this.$current = this.$items.eq( this.current ); if ( page !== undefined ) { this.current = page; } else if ( dir === 'next' && this.options.direction === 'ltr' || dir === 'prev' && this.options.direction === 'rtl' ) { if ( !this.options.circular && this.current === this.itemsCount - 1 ) { this.end = true; } else { this.previous = this.current; this.current = this.current < this.itemsCount - 1 ? this.current + 1 : 0; } } else if ( dir === 'prev' && this.options.direction === 'ltr' || dir === 'next' && this.options.direction === 'rtl' ) { if ( !this.options.circular && this.current === 0 ) { this.end = true; } else { this.previous = this.current; this.current = this.current > 0 ? this.current - 1 : this.itemsCount - 1; } } this.$nextItem = !this.options.circular && this.end ? this.$current : this.$items.eq( this.current ); if ( !this.support ) { this._layoutNoSupport( dir ); } else { this._layout( dir ); } }, _layoutNoSupport : function(dir) { this.$items.hide(); this.$nextItem.show(); this.end = false; this.isAnimating = false; var isLimit = dir === 'next' && this.current === this.itemsCount - 1 || dir === 'prev' && this.current === 0; // callback trigger this.options.onEndFlip( this.previous, this.current, isLimit ); }, // creates the necessary layout for the 3d structure _layout : function(dir) { var self = this, // basic structure: 1 element for the left side. $s_left = this._addSide( 'left', dir ), // 1 element for the flipping/middle page $s_middle = this._addSide( 'middle', dir ), // 1 element for the right side $s_right = this._addSide( 'right', dir ), // overlays $o_left = $s_left.find( 'div.bb-overlay' ), $o_middle_f = $s_middle.find( 'div.bb-flipoverlay:first' ), $o_middle_b = $s_middle.find( 'div.bb-flipoverlay:last' ), $o_right = $s_right.find( 'div.bb-overlay' ), speed = this.end ? 400 : this.options.speed; this.$items.hide(); this.$el.prepend( $s_left, $s_middle, $s_right ); $s_middle.css({ transitionDuration: speed + 'ms', transitionTimingFunction : this.options.easing }).on( this.transEndEventName, function( event ) { if ( $( event.target ).hasClass( 'bb-page' ) ) { self.$el.children( '.bb-page' ).remove(); self.$nextItem.show(); self.end = false; self.isAnimating = false; var isLimit = dir === 'next' && self.current === self.itemsCount - 1 || dir === 'prev' && self.current === 0; // callback trigger self.options.onEndFlip( self.previous, self.current, isLimit ); } }); if ( dir === 'prev' ) { $s_middle.addClass( 'bb-flip-initial' ); } // overlays if (this.options.shadows && !this.end) { var o_left_style = (dir === 'next') ? { transition: 'opacity ' + this.options.speed / 2 + 'ms ' + 'linear' + ' ' + this.options.speed / 2 + 'ms' } : { transition: 'opacity ' + this.options.speed / 2 + 'ms ' + 'linear', opacity: this.options.shadowSides }, o_middle_f_style = (dir === 'next') ? { transition: 'opacity ' + this.options.speed / 2 + 'ms ' + 'linear' } : { transition: 'opacity ' + this.options.speed / 2 + 'ms ' + 'linear' + ' ' + this.options.speed / 2 + 'ms', opacity: this.options.shadowFlip }, o_middle_b_style = (dir === 'next') ? { transition: 'opacity ' + this.options.speed / 2 + 'ms ' + 'linear' + ' ' + this.options.speed / 2 + 'ms', opacity: this.options.shadowFlip } : { transition: 'opacity ' + this.options.speed / 2 + 'ms ' + 'linear' }, o_right_style = (dir === 'next') ? { transition: 'opacity ' + this.options.speed / 2 + 'ms ' + 'linear', opacity: this.options.shadowSides } : { transition: 'opacity ' + this.options.speed / 2 + 'ms ' + 'linear' + ' ' + this.options.speed / 2 + 'ms' }; $o_middle_f.css(o_middle_f_style); $o_middle_b.css(o_middle_b_style); $o_left.css(o_left_style); $o_right.css(o_right_style); } setTimeout( function() { // first && last pages lift slightly up when we can't go further $s_middle.addClass( self.end ? 'bb-flip-' + dir + '-end' : 'bb-flip-' + dir ); // overlays if ( self.options.shadows && !self.end ) { $o_middle_f.css({ opacity: dir === 'next' ? self.options.shadowFlip : 0 }); $o_middle_b.css({ opacity: dir === 'next' ? 0 : self.options.shadowFlip }); $o_left.css({ opacity: dir === 'next' ? self.options.shadowSides : 0 }); $o_right.css({ opacity: dir === 'next' ? 0 : self.options.shadowSides }); } }, 25 ); }, // adds the necessary sides (bb-page) to the layout _addSide : function( side, dir ) { var $side; switch (side) { case 'left': /*
dir==='next' ? [content of current page] : [content of next page]
*/ $side = $('
' + ( dir === 'next' ? this.$current.html() : this.$nextItem.html() ) + '
').css( 'z-index', 102 ); break; case 'middle': /*
dir==='next' ? [content of current page] : [content of next page]
dir==='next' ? [content of next page] : [content of current page]
*/ $side = $('
' + (dir === 'next' ? this.$current.html() : this.$nextItem.html()) + '
' + ( dir === 'next' ? this.$nextItem.html() : this.$current.html() ) + '
').css( 'z-index', 103 ); break; case 'right': /*
dir==='next' ? [content of next page] : [content of current page]
*/ $side = $('
' + ( dir === 'next' ? this.$nextItem.html() : this.$current.html() ) + '
').css( 'z-index', 101 ); break; } return $side; }, _startSlideshow : function() { var self = this; this.slideshow = setTimeout( function() { self._navigate( 'next' ); if ( self.options.autoplay ) { self._startSlideshow(); } }, this.options.interval ); }, _stopSlideshow : function() { if ( this.options.autoplay ) { clearTimeout( this.slideshow ); this.options.autoplay = false; } }, // public method: flips next next : function() { this._action( this.options.direction === 'ltr' ? 'next' : 'prev' ); }, // public method: flips back prev : function() { this._action( this.options.direction === 'ltr' ? 'prev' : 'next' ); }, // public method: goes to a specific page jump : function( page ) { page -= 1; if ( page === this.current || page >= this.itemsCount || page < 0 ) { return false; } var dir; if( this.options.direction === 'ltr' ) { dir = page > this.current ? 'next' : 'prev'; } else { dir = page > this.current ? 'prev' : 'next'; } this._action( dir, page ); }, // public method: goes to the last page last : function() { this.jump( this.itemsCount ); }, // public method: goes to the first page first : function() { this.jump( 1 ); }, // public method: check if isAnimating is true isActive: function() { return this.isAnimating; }, // public method: dynamically adds new elements // call this method after inserting new "bb-item" elements inside the BookBlock update : function () { var $currentItem = this.$items.eq( this.current ); this.$items = this.$el.children( '.bb-item' ); this.itemsCount = this.$items.length; this.current = $currentItem.index(); }, destroy : function() { if ( this.options.autoplay ) { this._stopSlideshow(); } this.$el.removeClass( 'bb-' + this.options.orientation ); this.$items.show(); if ( this.options.nextEl !== '' ) { $( this.options.nextEl ).off( '.bookblock' ); } if ( this.options.prevEl !== '' ) { $( this.options.prevEl ).off( '.bookblock' ); } $window.off( 'debouncedresize' ); } } var logError = function( message ) { if ( window.console ) { window.console.error( message ); } }; $.fn.bookblock = function( options ) { if ( typeof options === 'string' ) { var args = Array.prototype.slice.call( arguments, 1 ); this.each(function() { var instance = $.data( this, 'bookblock' ); if ( !instance ) { logError( "cannot call methods on bookblock prior to initialization; " + "attempted to call method '" + options + "'" ); return; } if ( !$.isFunction( instance[options] ) || options.charAt(0) === "_" ) { logError( "no such method '" + options + "' for bookblock instance" ); return; } instance[ options ].apply( instance, args ); }); } else { this.each(function() { var instance = $.data( this, 'bookblock' ); if ( instance ) { instance._init(); } else { instance = $.data( this, 'bookblock', new $.BookBlock( options, this ) ); } }); } return this; }; } )( jQuery, window );