ecomp-portal-FE/client/bower_components/jquery/src/core/init.js

   1 // Initialize a jQuery object
   2 define( [
   3         "../core",
   4         "../var/document",
   5         "./var/rsingleTag",
   6         "../traversing/findFilter"
   7 ], function( jQuery, document, rsingleTag ) {
   8
   9 // A central reference to the root jQuery(document)
  10 var rootjQuery,
  11
  12         // A simple way to check for HTML strings
  13         // Prioritize #id over <tag> to avoid XSS via location.hash (#9521)
  14         // Strict HTML recognition (#11290: must start with <)
  15         rquickExpr = /^(?:\s*(<[\w\W]+>)[^>]*|#([\w-]*))$/,
  16
  17         init = jQuery.fn.init = function( selector, context, root ) {
  18                 var match, elem;
  19
  20                 // HANDLE: $(""), $(null), $(undefined), $(false)
  21                 if ( !selector ) {
  22                         return this;
  23                 }
  24
  25                 // Method init() accepts an alternate rootjQuery
  26                 // so migrate can support jQuery.sub (gh-2101)
  27                 root = root || rootjQuery;
  28
  29                 // Handle HTML strings
  30                 if ( typeof selector === "string" ) {
  31                         if ( selector[ 0 ] === "<" &&
  32                                 selector[ selector.length - 1 ] === ">" &&
  33                                 selector.length >= 3 ) {
  34
  35                                 // Assume that strings that start and end with <> are HTML and skip the regex check
  36                                 match = [ null, selector, null ];
  37
  38                         } else {
  39                                 match = rquickExpr.exec( selector );
  40                         }
  41
  42                         // Match html or make sure no context is specified for #id
  43                         if ( match && ( match[ 1 ] || !context ) ) {
  44
  45                                 // HANDLE: $(html) -> $(array)
  46                                 if ( match[ 1 ] ) {
  47                                         context = context instanceof jQuery ? context[ 0 ] : context;
  48
  49                                         // Option to run scripts is true for back-compat
  50                                         // Intentionally let the error be thrown if parseHTML is not present
  51                                         jQuery.merge( this, jQuery.parseHTML(
  52                                                 match[ 1 ],
  53                                                 context && context.nodeType ? context.ownerDocument || context : document,
  54                                                 true
  55                                         ) );
  56
  57                                         // HANDLE: $(html, props)
  58                                         if ( rsingleTag.test( match[ 1 ] ) && jQuery.isPlainObject( context ) ) {
  59                                                 for ( match in context ) {
  60
  61                                                         // Properties of context are called as methods if possible
  62                                                         if ( jQuery.isFunction( this[ match ] ) ) {
  63                                                                 this[ match ]( context[ match ] );
  64
  65                                                         // ...and otherwise set as attributes
  66                                                         } else {
  67                                                                 this.attr( match, context[ match ] );
  68                                                         }
  69                                                 }
  70                                         }
  71
  72                                         return this;
  73
  74                                 // HANDLE: $(#id)
  75                                 } else {
  76                                         elem = document.getElementById( match[ 2 ] );
  77
  78                                         // Support: Blackberry 4.6
  79                                         // gEBID returns nodes no longer in the document (#6963)
  80                                         if ( elem && elem.parentNode ) {
  81
  82                                                 // Inject the element directly into the jQuery object
  83                                                 this.length = 1;
  84                                                 this[ 0 ] = elem;
  85                                         }
  86
  87                                         this.context = document;
  88                                         this.selector = selector;
  89                                         return this;
  90                                 }
  91
  92                         // HANDLE: $(expr, $(...))
  93                         } else if ( !context || context.jquery ) {
  94                                 return ( context || root ).find( selector );
  95
  96                         // HANDLE: $(expr, context)
  97                         // (which is just equivalent to: $(context).find(expr)
  98                         } else {
  99                                 return this.constructor( context ).find( selector );
 100                         }
 101
 102                 // HANDLE: $(DOMElement)
 103                 } else if ( selector.nodeType ) {
 104                         this.context = this[ 0 ] = selector;
 105                         this.length = 1;
 106                         return this;
 107
 108                 // HANDLE: $(function)
 109                 // Shortcut for document ready
 110                 } else if ( jQuery.isFunction( selector ) ) {
 111                         return root.ready !== undefined ?
 112                                 root.ready( selector ) :
 113
 114                                 // Execute immediately if ready is not present
 115                                 selector( jQuery );
 116                 }
 117
 118                 if ( selector.selector !== undefined ) {
 119                         this.selector = selector.selector;
 120                         this.context = selector.context;
 121                 }
 122
 123                 return jQuery.makeArray( selector, this );
 124         };
 125
 126 // Give the init function the jQuery prototype for later instantiation
 127 init.prototype = jQuery.fn;
 128
 129 // Initialize central reference
 130 rootjQuery = jQuery( document );
 131
 132 return init;
 133
 134 } );