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   1  /*!
   2   * jQuery UI Effects Explode 1.13.3
   3   * https://jqueryui.com
   4   *
   5   * Copyright OpenJS Foundation and other contributors
   6   * Released under the MIT license.
   7   * https://jquery.org/license
   8   */
   9  
  10  //>>label: Explode Effect
  11  //>>group: Effects
  12  /* eslint-disable max-len */
  13  //>>description: Explodes an element in all directions into n pieces. Implodes an element to its original wholeness.
  14  /* eslint-enable max-len */
  15  //>>docs: https://api.jqueryui.com/explode-effect/
  16  //>>demos: https://jqueryui.com/effect/
  17  
  18  ( function( factory ) {
  19      "use strict";
  20  
  21      if ( typeof define === "function" && define.amd ) {
  22  
  23          // AMD. Register as an anonymous module.
  24          define( [
  25              "jquery",
  26              "../version",
  27              "../effect"
  28          ], factory );
  29      } else {
  30  
  31          // Browser globals
  32          factory( jQuery );
  33      }
  34  } )( function( $ ) {
  35  "use strict";
  36  
  37  return $.effects.define( "explode", "hide", function( options, done ) {
  38  
  39      var i, j, left, top, mx, my,
  40          rows = options.pieces ? Math.round( Math.sqrt( options.pieces ) ) : 3,
  41          cells = rows,
  42          element = $( this ),
  43          mode = options.mode,
  44          show = mode === "show",
  45  
  46          // Show and then visibility:hidden the element before calculating offset
  47          offset = element.show().css( "visibility", "hidden" ).offset(),
  48  
  49          // Width and height of a piece
  50          width = Math.ceil( element.outerWidth() / cells ),
  51          height = Math.ceil( element.outerHeight() / rows ),
  52          pieces = [];
  53  
  54      // Children animate complete:
  55  	function childComplete() {
  56          pieces.push( this );
  57          if ( pieces.length === rows * cells ) {
  58              animComplete();
  59          }
  60      }
  61  
  62      // Clone the element for each row and cell.
  63      for ( i = 0; i < rows; i++ ) { // ===>
  64          top = offset.top + i * height;
  65          my = i - ( rows - 1 ) / 2;
  66  
  67          for ( j = 0; j < cells; j++ ) { // |||
  68              left = offset.left + j * width;
  69              mx = j - ( cells - 1 ) / 2;
  70  
  71              // Create a clone of the now hidden main element that will be absolute positioned
  72              // within a wrapper div off the -left and -top equal to size of our pieces
  73              element
  74                  .clone()
  75                  .appendTo( "body" )
  76                  .wrap( "<div></div>" )
  77                  .css( {
  78                      position: "absolute",
  79                      visibility: "visible",
  80                      left: -j * width,
  81                      top: -i * height
  82                  } )
  83  
  84                  // Select the wrapper - make it overflow: hidden and absolute positioned based on
  85                  // where the original was located +left and +top equal to the size of pieces
  86                  .parent()
  87                      .addClass( "ui-effects-explode" )
  88                      .css( {
  89                          position: "absolute",
  90                          overflow: "hidden",
  91                          width: width,
  92                          height: height,
  93                          left: left + ( show ? mx * width : 0 ),
  94                          top: top + ( show ? my * height : 0 ),
  95                          opacity: show ? 0 : 1
  96                      } )
  97                      .animate( {
  98                          left: left + ( show ? 0 : mx * width ),
  99                          top: top + ( show ? 0 : my * height ),
 100                          opacity: show ? 1 : 0
 101                      }, options.duration || 500, options.easing, childComplete );
 102          }
 103      }
 104  
 105  	function animComplete() {
 106          element.css( {
 107              visibility: "visible"
 108          } );
 109          $( pieces ).remove();
 110          done();
 111      }
 112  } );
 113  
 114  } );