git.r.bdr.sh - rbdr/dotfiles/blob - atom/packages/ex-mode/node_modules/space-pen/node_modules/jquery/src/core/init.js

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