src/manipulation/buildFragment.js

   1 define([
   2         "../core",
   3         "./var/rtagName",
   4         "./var/rscriptType",
   5         "./wrapMap",
   6         "./getAll",
   7         "./setGlobalEval"
   8 ], function( jQuery, rtagName, rscriptType, wrapMap, getAll, setGlobalEval ) {
   9
  10 var rhtml = /<|&#?\w+;/;
  11
  12 function buildFragment( elems, context, scripts, selection, ignored ) {
  13         var elem, tmp, tag, wrap, contains, j,
  14                 fragment = context.createDocumentFragment(),
  15                 nodes = [],
  16                 i = 0,
  17                 l = elems.length;
  18
  19         for ( ; i < l; i++ ) {
  20                 elem = elems[ i ];
  21
  22                 if ( elem || elem === 0 ) {
  23
  24                         // Add nodes directly
  25                         if ( jQuery.type( elem ) === "object" ) {
  26                                 // Support: Android<4.1, PhantomJS<2
  27                                 // push.apply(_, arraylike) throws on ancient WebKit
  28                                 jQuery.merge( nodes, elem.nodeType ? [ elem ] : elem );
  29
  30                         // Convert non-html into a text node
  31                         } else if ( !rhtml.test( elem ) ) {
  32                                 nodes.push( context.createTextNode( elem ) );
  33
  34                         // Convert html into DOM nodes
  35                         } else {
  36                                 tmp = tmp || fragment.appendChild( context.createElement( "div" ) );
  37
  38                                 // Deserialize a standard representation
  39                                 tag = ( rtagName.exec( elem ) || [ "", "" ] )[ 1 ].toLowerCase();
  40                                 wrap = wrapMap[ tag ] || wrapMap._default;
  41                                 tmp.innerHTML = wrap[ 1 ] + jQuery.htmlPrefilter( elem ) + wrap[ 2 ];
  42
  43                                 // Descend through wrappers to the right content
  44                                 j = wrap[ 0 ];
  45                                 while ( j-- ) {
  46                                         tmp = tmp.lastChild;
  47                                 }
  48
  49                                 // Support: Android<4.1, PhantomJS<2
  50                                 // push.apply(_, arraylike) throws on ancient WebKit
  51                                 jQuery.merge( nodes, tmp.childNodes );
  52
  53                                 // Remember the top-level container
  54                                 tmp = fragment.firstChild;
  55
  56                                 // Ensure the created nodes are orphaned (#12392)
  57                                 tmp.textContent = "";
  58                         }
  59                 }
  60         }
  61
  62         // Remove wrapper from fragment
  63         fragment.textContent = "";
  64
  65         i = 0;
  66         while ( ( elem = nodes[ i++ ] ) ) {
  67
  68                 // Skip elements already in the context collection (trac-4087)
  69                 if ( selection && jQuery.inArray( elem, selection ) > -1 ) {
  70                         if ( ignored ) {
  71                                 ignored.push( elem );
  72                         }
  73                         continue;
  74                 }
  75
  76                 contains = jQuery.contains( elem.ownerDocument, elem );
  77
  78                 // Append to fragment
  79                 tmp = getAll( fragment.appendChild( elem ), "script" );
  80
  81                 // Preserve script evaluation history
  82                 if ( contains ) {
  83                         setGlobalEval( tmp );
  84                 }
  85
  86                 // Capture executables
  87                 if ( scripts ) {
  88                         j = 0;
  89                         while ( ( elem = tmp[ j++ ] ) ) {
  90                                 if ( rscriptType.test( elem.type || "" ) ) {
  91                                         scripts.push( elem );
  92                                 }
  93                         }
  94                 }
  95         }
  96
  97         return fragment;
  98 }
  99
 100 return buildFragment;
 101 });