From 2014.igem.org
/**
* 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 );
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