tools/side_chain_tool/web/node_modules/jquery/src/css/showHide.js

   1 define( [
   2         "../core",
   3         "../data/var/dataPriv",
   4         "../css/var/isHiddenWithinTree"
   5 ], function( jQuery, dataPriv, isHiddenWithinTree ) {
   6
   7 "use strict";
   8
   9 var defaultDisplayMap = {};
  10
  11 function getDefaultDisplay( elem ) {
  12         var temp,
  13                 doc = elem.ownerDocument,
  14                 nodeName = elem.nodeName,
  15                 display = defaultDisplayMap[ nodeName ];
  16
  17         if ( display ) {
  18                 return display;
  19         }
  20
  21         temp = doc.body.appendChild( doc.createElement( nodeName ) );
  22         display = jQuery.css( temp, "display" );
  23
  24         temp.parentNode.removeChild( temp );
  25
  26         if ( display === "none" ) {
  27                 display = "block";
  28         }
  29         defaultDisplayMap[ nodeName ] = display;
  30
  31         return display;
  32 }
  33
  34 function showHide( elements, show ) {
  35         var display, elem,
  36                 values = [],
  37                 index = 0,
  38                 length = elements.length;
  39
  40         // Determine new display value for elements that need to change
  41         for ( ; index < length; index++ ) {
  42                 elem = elements[ index ];
  43                 if ( !elem.style ) {
  44                         continue;
  45                 }
  46
  47                 display = elem.style.display;
  48                 if ( show ) {
  49
  50                         // Since we force visibility upon cascade-hidden elements, an immediate (and slow)
  51                         // check is required in this first loop unless we have a nonempty display value (either
  52                         // inline or about-to-be-restored)
  53                         if ( display === "none" ) {
  54                                 values[ index ] = dataPriv.get( elem, "display" ) || null;
  55                                 if ( !values[ index ] ) {
  56                                         elem.style.display = "";
  57                                 }
  58                         }
  59                         if ( elem.style.display === "" && isHiddenWithinTree( elem ) ) {
  60                                 values[ index ] = getDefaultDisplay( elem );
  61                         }
  62                 } else {
  63                         if ( display !== "none" ) {
  64                                 values[ index ] = "none";
  65
  66                                 // Remember what we're overwriting
  67                                 dataPriv.set( elem, "display", display );
  68                         }
  69                 }
  70         }
  71
  72         // Set the display of the elements in a second loop to avoid constant reflow
  73         for ( index = 0; index < length; index++ ) {
  74                 if ( values[ index ] != null ) {
  75                         elements[ index ].style.display = values[ index ];
  76                 }
  77         }
  78
  79         return elements;
  80 }
  81
  82 jQuery.fn.extend( {
  83         show: function() {
  84                 return showHide( this, true );
  85         },
  86         hide: function() {
  87                 return showHide( this );
  88         },
  89         toggle: function( state ) {
  90                 if ( typeof state === "boolean" ) {
  91                         return state ? this.show() : this.hide();
  92                 }
  93
  94                 return this.each( function() {
  95                         if ( isHiddenWithinTree( this ) ) {
  96                                 jQuery( this ).show();
  97                         } else {
  98                                 jQuery( this ).hide();
  99                         }
 100                 } );
 101         }
 102 } );
 103
 104 return showHide;
 105 } );