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120 lines
2.9 KiB
JavaScript
120 lines
2.9 KiB
JavaScript
/*
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* jQuery UI Effects Bounce @VERSION
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*
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* Copyright 2011, AUTHORS.txt (http://jqueryui.com/about)
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* Dual licensed under the MIT or GPL Version 2 licenses.
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* http://jquery.org/license
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*
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* http://docs.jquery.com/UI/Effects/Bounce
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*
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* Depends:
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* jquery.effects.core.js
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*/
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(function( $, undefined ) {
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$.effects.effect.bounce = function(o) {
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return this.queue( function( next ) {
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var el = $( this ),
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props = [ "position", "top", "bottom", "left", "right" ],
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// defaults:
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mode = $.effects.setMode( el, o.mode || "effect" ),
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hide = mode === "hide",
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show = mode === "show",
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direction = o.direction || "up",
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distance = o.distance,
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times = o.times || 5,
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// number of internal animations
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anims = times * 2 + ( show || hide ? 1 : 0 ),
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speed = o.duration / anims,
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easing = o.easing,
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// utility:
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ref = ( direction === "up" || direction === "down" ) ? "top" : "left",
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motion = ( direction === "up" || direction === "left" ),
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i,
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upAnim,
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downAnim,
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// we will need to re-assemble the queue to stack our animations in place
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queue = el.queue(),
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queuelen = queue.length;
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// Avoid touching opacity to prevent clearType and PNG issues in IE
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if ( show || hide ) {
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props.push( "opacity" );
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}
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$.effects.save( el, props );
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el.show();
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$.effects.createWrapper( el ); // Create Wrapper
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// default distance for the BIGGEST bounce is the outer Distance / 3
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if ( !distance ) {
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distance = el[ ref === "top" ? "outerHeight" : "outerWidth" ]() / 3;
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}
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if ( show ) {
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downAnim = { opacity: 1 };
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downAnim[ ref ] = 0;
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// if we are showing, force opacity 0 and set the initial position
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// then do the "first" animation
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el.css( "opacity", 0 )
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.css( ref, motion ? -distance*2 : distance*2 )
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.animate( downAnim, speed, easing );
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}
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// start at the smallest distance if we are hiding
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if ( hide ) {
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distance = distance / Math.pow( 2, times - 1 );
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}
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downAnim = {};
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downAnim[ ref ] = 0;
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// Bounces up/down/left/right then back to 0 -- times * 2 animations happen here
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for ( i = 0; i < times; i++ ) {
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upAnim = {};
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upAnim[ ref ] = ( motion ? "-=" : "+=" ) + distance;
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el.animate( upAnim, speed, easing )
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.animate( downAnim, speed, easing );
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distance = hide ? distance * 2 : distance / 2;
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}
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// Last Bounce when Hiding
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if ( hide ) {
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upAnim = { opacity: 0 };
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upAnim[ ref ] = ( motion ? "-=" : "+=" ) + distance;
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el.animate( upAnim, speed, easing );
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}
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el.queue( function( next ) {
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if ( hide ) {
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el.hide();
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}
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$.effects.restore( el, props );
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$.effects.removeWrapper( el );
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if ( o.complete ) {
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o.complete.apply( el[ 0 ] );
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}
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next();
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});
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// inject all the animations we just queued to be first in line (after "inprogress")
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if ( queuelen > 1) {
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queue.splice.apply( queue,
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[ 1, 0 ].concat( queue.splice( queuelen, anims + 1 ) ) );
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}
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next();
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});
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};
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})(jQuery);
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