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torben |
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/*! |
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* jQuery UI Effects Explode 1.10.3 |
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* http://jqueryui.com |
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* |
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* Copyright 2013 jQuery Foundation and other contributors |
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* Released under the MIT license. |
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* http://jquery.org/license |
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* |
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* http://api.jqueryui.com/explode-effect/ |
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* |
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* Depends: |
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* jquery.ui.effect.js |
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*/ |
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(function( $, undefined ) { |
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$.effects.effect.explode = function( o, done ) { |
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var rows = o.pieces ? Math.round( Math.sqrt( o.pieces ) ) : 3, |
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cells = rows, |
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el = $( this ), |
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mode = $.effects.setMode( el, o.mode || "hide" ), |
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show = mode === "show", |
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// show and then visibility:hidden the element before calculating offset |
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offset = el.show().css( "visibility", "hidden" ).offset(), |
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// width and height of a piece |
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width = Math.ceil( el.outerWidth() / cells ), |
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height = Math.ceil( el.outerHeight() / rows ), |
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pieces = [], |
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// loop |
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i, j, left, top, mx, my; |
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// children animate complete: |
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function childComplete() { |
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pieces.push( this ); |
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if ( pieces.length === rows * cells ) { |
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animComplete(); |
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} |
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} |
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// clone the element for each row and cell. |
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for( i = 0; i < rows ; i++ ) { // ===> |
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top = offset.top + i * height; |
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my = i - ( rows - 1 ) / 2 ; |
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for( j = 0; j < cells ; j++ ) { // ||| |
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left = offset.left + j * width; |
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mx = j - ( cells - 1 ) / 2 ; |
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// Create a clone of the now hidden main element that will be absolute positioned |
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// within a wrapper div off the -left and -top equal to size of our pieces |
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el |
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.clone() |
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.appendTo( "body" ) |
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.wrap( "<div></div>" ) |
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.css({ |
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position: "absolute", |
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visibility: "visible", |
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left: -j * width, |
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top: -i * height |
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}) |
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// select the wrapper - make it overflow: hidden and absolute positioned based on |
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// where the original was located +left and +top equal to the size of pieces |
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.parent() |
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.addClass( "ui-effects-explode" ) |
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.css({ |
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position: "absolute", |
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overflow: "hidden", |
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width: width, |
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height: height, |
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left: left + ( show ? mx * width : 0 ), |
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top: top + ( show ? my * height : 0 ), |
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opacity: show ? 0 : 1 |
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}).animate({ |
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left: left + ( show ? 0 : mx * width ), |
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top: top + ( show ? 0 : my * height ), |
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opacity: show ? 1 : 0 |
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}, o.duration || 500, o.easing, childComplete ); |
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} |
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} |
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function animComplete() { |
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el.css({ |
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visibility: "visible" |
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}); |
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$( pieces ).remove(); |
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if ( !show ) { |
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el.hide(); |
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} |
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done(); |
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} |
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}; |
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})(jQuery); |
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