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/wp-includes/js/jquery/ui/ -> effect-bounce.js (source)

   1  /*!
   2   * jQuery UI Effects Bounce 1.13.2
   3   * http://jqueryui.com
   4   *
   5   * Copyright jQuery Foundation and other contributors
   6   * Released under the MIT license.
   7   * http://jquery.org/license
   8   */
   9  
  10  //>>label: Bounce Effect
  11  //>>group: Effects
  12  //>>description: Bounces an element horizontally or vertically n times.
  13  //>>docs: http://api.jqueryui.com/bounce-effect/
  14  //>>demos: http://jqueryui.com/effect/
  15  
  16  ( function( factory ) {
  17      "use strict";
  18  
  19      if ( typeof define === "function" && define.amd ) {
  20  
  21          // AMD. Register as an anonymous module.
  22          define( [
  23              "jquery",
  24              "./effect"
  25          ], factory );
  26      } else {
  27  
  28          // Browser globals
  29          factory( jQuery );
  30      }
  31  } )( function( $ ) {
  32  "use strict";
  33  
  34  return $.effects.define( "bounce", function( options, done ) {
  35      var upAnim, downAnim, refValue,
  36          element = $( this ),
  37  
  38          // Defaults:
  39          mode = options.mode,
  40          hide = mode === "hide",
  41          show = mode === "show",
  42          direction = options.direction || "up",
  43          distance = options.distance,
  44          times = options.times || 5,
  45  
  46          // Number of internal animations
  47          anims = times * 2 + ( show || hide ? 1 : 0 ),
  48          speed = options.duration / anims,
  49          easing = options.easing,
  50  
  51          // Utility:
  52          ref = ( direction === "up" || direction === "down" ) ? "top" : "left",
  53          motion = ( direction === "up" || direction === "left" ),
  54          i = 0,
  55  
  56          queuelen = element.queue().length;
  57  
  58      $.effects.createPlaceholder( element );
  59  
  60      refValue = element.css( ref );
  61  
  62      // Default distance for the BIGGEST bounce is the outer Distance / 3
  63      if ( !distance ) {
  64          distance = element[ ref === "top" ? "outerHeight" : "outerWidth" ]() / 3;
  65      }
  66  
  67      if ( show ) {
  68          downAnim = { opacity: 1 };
  69          downAnim[ ref ] = refValue;
  70  
  71          // If we are showing, force opacity 0 and set the initial position
  72          // then do the "first" animation
  73          element
  74              .css( "opacity", 0 )
  75              .css( ref, motion ? -distance * 2 : distance * 2 )
  76              .animate( downAnim, speed, easing );
  77      }
  78  
  79      // Start at the smallest distance if we are hiding
  80      if ( hide ) {
  81          distance = distance / Math.pow( 2, times - 1 );
  82      }
  83  
  84      downAnim = {};
  85      downAnim[ ref ] = refValue;
  86  
  87      // Bounces up/down/left/right then back to 0 -- times * 2 animations happen here
  88      for ( ; i < times; i++ ) {
  89          upAnim = {};
  90          upAnim[ ref ] = ( motion ? "-=" : "+=" ) + distance;
  91  
  92          element
  93              .animate( upAnim, speed, easing )
  94              .animate( downAnim, speed, easing );
  95  
  96          distance = hide ? distance * 2 : distance / 2;
  97      }
  98  
  99      // Last Bounce when Hiding
 100      if ( hide ) {
 101          upAnim = { opacity: 0 };
 102          upAnim[ ref ] = ( motion ? "-=" : "+=" ) + distance;
 103  
 104          element.animate( upAnim, speed, easing );
 105      }
 106  
 107      element.queue( done );
 108  
 109      $.effects.unshift( element, queuelen, anims + 1 );
 110  } );
 111  
 112  } );


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