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