256 lines
No EOL
8.6 KiB
JavaScript
Executable file
256 lines
No EOL
8.6 KiB
JavaScript
Executable file
(function($) {
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var cache = {},
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aux = {
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// navigates left / right
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navigate : function( dir, $el, $wrapper, opts ) {
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var scroll = opts.scroll,
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factor = 1,
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idxClicked = 0;
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if( cache.expanded ) {
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scroll = 1; // scroll is always 1 in full mode
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factor = 3; // the width of the expanded item will be 3 times bigger than 1 collapsed item
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idxClicked = cache.idxClicked; // the index of the clicked item
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}
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// clone the elements on the right / left and append / prepend them according to dir and scroll
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if( dir === 1 ) {
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$wrapper.find('div.ca-item:lt(' + scroll + ')').each(function(i) {
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$(this).clone(true).css( 'left', ( cache.totalItems - idxClicked + i ) * cache.itemW * factor + 'px' ).appendTo( $wrapper );
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});
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}
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else {
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var $first = $wrapper.children().eq(0);
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$wrapper.find('div.ca-item:gt(' + ( cache.totalItems - 1 - scroll ) + ')').each(function(i) {
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// insert before $first so they stay in the right order
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$(this).clone(true).css( 'left', - ( scroll - i + idxClicked ) * cache.itemW * factor + 'px' ).insertBefore( $first );
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});
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}
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// animate the left of each item
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// the calculations are dependent on dir and on the cache.expanded value
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$wrapper.find('div.ca-item').each(function(i) {
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var $item = $(this);
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$item.stop().animate({
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left : ( dir === 1 ) ? '-=' + ( cache.itemW * factor * scroll ) + 'px' : '+=' + ( cache.itemW * factor * scroll ) + 'px'
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}, opts.sliderSpeed, opts.sliderEasing, function() {
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if( ( dir === 1 && $item.position().left < - idxClicked * cache.itemW * factor ) || ( dir === -1 && $item.position().left > ( ( cache.totalItems - 1 - idxClicked ) * cache.itemW * factor ) ) ) {
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// remove the item that was cloned
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$item.remove();
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}
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cache.isAnimating = false;
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});
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});
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},
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// opens an item (animation) -> opens all the others
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openItem : function( $wrapper, $item, opts ) {
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cache.idxClicked = $item.index();
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// the item's position (1, 2, or 3) on the viewport (the visible items)
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cache.winpos = aux.getWinPos( $item.position().left );
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$wrapper.find('div.ca-item').not( $item ).hide();
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$item.find('div.ca-content-wrapper').css( 'left', cache.itemW + 'px' ).stop().animate({
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width : cache.itemW * 2 + 'px',
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left : cache.itemW + 'px'
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}, opts.itemSpeed, opts.itemEasing)
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.end()
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.stop()
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.animate({
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left : '0px'
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}, opts.itemSpeed, opts.itemEasing, function() {
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cache.isAnimating = false;
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cache.expanded = true;
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aux.openItems( $wrapper, $item, opts );
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});
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},
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// opens all the items
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openItems : function( $wrapper, $openedItem, opts ) {
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var openedIdx = $openedItem.index();
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$wrapper.find('div.ca-item').each(function(i) {
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var $item = $(this),
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idx = $item.index();
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if( idx !== openedIdx ) {
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$item.css( 'left', - ( openedIdx - idx ) * ( cache.itemW * 3 ) + 'px' ).show().find('div.ca-content-wrapper').css({
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left : cache.itemW + 'px',
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width : cache.itemW * 2 + 'px'
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});
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// hide more link
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aux.toggleMore( $item, false );
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}
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});
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},
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// show / hide the item's more button
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toggleMore : function( $item, show ) {
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( show ) ? $item.find('a.ca-more').show() : $item.find('a.ca-more').hide();
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},
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// close all the items
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// the current one is animated
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closeItems : function( $wrapper, $openedItem, opts ) {
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var openedIdx = $openedItem.index();
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$openedItem.find('div.ca-content-wrapper').stop().animate({
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width : '0px'
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}, opts.itemSpeed, opts.itemEasing)
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.end()
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.stop()
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.animate({
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left : cache.itemW * ( cache.winpos - 1 ) + 'px'
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}, opts.itemSpeed, opts.itemEasing, function() {
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cache.isAnimating = false;
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cache.expanded = false;
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});
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// show more link
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aux.toggleMore( $openedItem, true );
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$wrapper.find('div.ca-item').each(function(i) {
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var $item = $(this),
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idx = $item.index();
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if( idx !== openedIdx ) {
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$item.find('div.ca-content-wrapper').css({
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width : '0px'
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})
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.end()
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.css( 'left', ( ( cache.winpos - 1 ) - ( openedIdx - idx ) ) * cache.itemW + 'px' )
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.show();
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// show more link
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aux.toggleMore( $item, true );
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}
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});
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},
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// gets the item's position (1, 2, or 3) on the viewport (the visible items)
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// val is the left of the item
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getWinPos : function( val ) {
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switch( val ) {
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case 0 : return 1; break;
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case cache.itemW : return 2; break;
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case cache.itemW * 2 : return 3; break;
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}
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}
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},
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methods = {
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init : function( options ) {
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if( this.length ) {
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var settings = {
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sliderSpeed : 500, // speed for the sliding animation
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sliderEasing : 'easeOutExpo',// easing for the sliding animation
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itemSpeed : 500, // speed for the item animation (open / close)
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itemEasing : 'easeOutExpo',// easing for the item animation (open / close)
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scroll : 1 // number of items to scroll at a time
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};
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return this.each(function() {
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// if options exist, lets merge them with our default settings
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if ( options ) {
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$.extend( settings, options );
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}
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var $el = $(this),
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$wrapper = $el.find('div.ca-wrapper'),
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$items = $wrapper.children('div.ca-item');
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// save the with of one item
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cache.itemW = $items.width();
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// save the number of total items
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cache.totalItems = $items.length;
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// add navigation buttons
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if( cache.totalItems > 3 )
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$el.prepend('<div class="ca-nav"><span class="ca-nav-prev">Previous</span><span class="ca-nav-next">Next</span></div>')
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// control the scroll value
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if( settings.scroll < 1 )
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settings.scroll = 1;
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else if( settings.scroll > 3 )
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settings.scroll = 3;
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var $navPrev = $el.find('span.ca-nav-prev'),
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$navNext = $el.find('span.ca-nav-next');
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// hide the items except the first 3
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$wrapper.css( 'overflow', 'hidden' );
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// the items will have position absolute
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// calculate the left of each item
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$items.each(function(i) {
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$(this).css({
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position : 'absolute',
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left : i * cache.itemW + 'px'
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});
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});
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// click to open the item(s)
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$el.find('a.ca-more').live('click.contentcarousel', function( event ) {
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if( cache.isAnimating ) return false;
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cache.isAnimating = true;
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$(this).hide();
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var $item = $(this).closest('div.ca-item');
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aux.openItem( $wrapper, $item, settings );
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return false;
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});
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// click to close the item(s)
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$el.find('a.ca-close').live('click.contentcarousel', function( event ) {
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if( cache.isAnimating ) return false;
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cache.isAnimating = true;
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var $item = $(this).closest('div.ca-item');
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aux.closeItems( $wrapper, $item, settings );
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return false;
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});
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// navigate left
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$navPrev.bind('click.contentcarousel', function( event ) {
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if( cache.isAnimating ) return false;
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cache.isAnimating = true;
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aux.navigate( -1, $el, $wrapper, settings );
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});
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// navigate right
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$navNext.bind('click.contentcarousel', function( event ) {
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if( cache.isAnimating ) return false;
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cache.isAnimating = true;
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aux.navigate( 1, $el, $wrapper, settings );
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});
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// adds events to the mouse
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$el.bind('mousewheel.contentcarousel', function(e, delta) {
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if(delta > 0) {
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if( cache.isAnimating ) return false;
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cache.isAnimating = true;
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aux.navigate( -1, $el, $wrapper, settings );
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}
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else {
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if( cache.isAnimating ) return false;
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cache.isAnimating = true;
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aux.navigate( 1, $el, $wrapper, settings );
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}
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return false;
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});
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});
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}
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}
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};
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$.fn.contentcarousel = function(method) {
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if ( methods[method] ) {
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return methods[method].apply( this, Array.prototype.slice.call( arguments, 1 ));
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} else if ( typeof method === 'object' || ! method ) {
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return methods.init.apply( this, arguments );
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} else {
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$.error( 'Method ' + method + ' does not exist on jQuery.contentcarousel' );
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}
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};
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})(jQuery); |