utils/test/testapi/3rd_party/static/testapi-ui/assets/lib/jquery/src/core/init.js

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