diff options
Diffstat (limited to 'src/core.js')
-rw-r--r-- | src/core.js | 229 |
1 files changed, 47 insertions, 182 deletions
diff --git a/src/core.js b/src/core.js index 01b3d9a92..7e190a480 100644 --- a/src/core.js +++ b/src/core.js @@ -10,17 +10,8 @@ var toString = require( "./var/toString" ), hasOwn = require( "./var/hasOwn" ), trim = require( "./var/trim" ), - rsingleTag = require( "./var/rsingleTag" ), support = require( "./var/support" ), - i, - - // A central reference to the root jQuery(document) - rootjQuery, - - // Use the correct document accordingly with window argument (sandbox) - document = window.document, - // Map over jQuery in case of overwrite _jQuery = window.jQuery, @@ -32,17 +23,13 @@ var // Define a local copy of jQuery jQuery = function( selector, context ) { // The jQuery object is actually just the init constructor 'enhanced' - return new jQuery.fn.init( selector, context, rootjQuery ); + // Need init if jQuery is called (just allow error to be thrown if not included) + return new jQuery.fn.init( selector, context ); }, // Make sure we trim BOM and NBSP (here's looking at you, Safari 5.0 and IE) rtrim = /^[\s\uFEFF\xA0]+|[\s\uFEFF\xA0]+$/g, - // A simple way to check for HTML strings - // Prioritize #id over <tag> to avoid XSS via location.hash (#9521) - // Strict HTML recognition (#11290: must start with <) - rquickExpr = /^(?:\s*(<[\w\W]+>)[^>]*|#([\w-]*))$/, - // Matches dashed string for camelizing rmsPrefix = /^-ms-/, rdashAlpha = /-([\da-z])/gi, @@ -58,111 +45,6 @@ jQuery.fn = jQuery.prototype = { constructor: jQuery, - init: function( selector, context, rootjQuery ) { - var match, elem; - - // HANDLE: $(""), $(null), $(undefined), $(false) - if ( !selector ) { - return this; - } - - // Handle HTML strings - if ( typeof selector === "string" ) { - if ( selector.charAt(0) === "<" && selector.charAt( selector.length - 1 ) === ">" && selector.length >= 3 ) { - // Assume that strings that start and end with <> are HTML and skip the regex check - match = [ null, selector, null ]; - - } else { - match = rquickExpr.exec( selector ); - } - - // Match html or make sure no context is specified for #id - if ( match && (match[1] || !context) ) { - - // HANDLE: $(html) -> $(array) - if ( match[1] ) { - context = context instanceof jQuery ? context[0] : context; - - // scripts is true for back-compat - // Intentionally let the error be thrown if parseHTML is not present - jQuery.merge( this, jQuery.parseHTML( - match[1], - context && context.nodeType ? context.ownerDocument || context : document, - true - ) ); - - // HANDLE: $(html, props) - if ( rsingleTag.test( match[1] ) && jQuery.isPlainObject( context ) ) { - for ( match in context ) { - // Properties of context are called as methods if possible - if ( jQuery.isFunction( this[ match ] ) ) { - this[ match ]( context[ match ] ); - - // ...and otherwise set as attributes - } else { - this.attr( match, context[ match ] ); - } - } - } - - return this; - - // HANDLE: $(#id) - } else { - elem = document.getElementById( match[2] ); - - // Check parentNode to catch when Blackberry 4.6 returns - // nodes that are no longer in the document #6963 - if ( elem && elem.parentNode ) { - // Handle the case where IE and Opera return items - // by name instead of ID - if ( elem.id !== match[2] ) { - return rootjQuery.find( selector ); - } - - // Otherwise, we inject the element directly into the jQuery object - this.length = 1; - this[0] = elem; - } - - this.context = document; - this.selector = selector; - return this; - } - - // HANDLE: $(expr, $(...)) - } else if ( !context || context.jquery ) { - return ( context || rootjQuery ).find( selector ); - - // HANDLE: $(expr, context) - // (which is just equivalent to: $(context).find(expr) - } else { - return this.constructor( context ).find( selector ); - } - - // HANDLE: $(DOMElement) - } else if ( selector.nodeType ) { - this.context = this[0] = selector; - this.length = 1; - return this; - - // HANDLE: $(function) - // Shortcut for document ready - } else if ( jQuery.isFunction( selector ) ) { - return typeof rootjQuery.ready !== "undefined" ? - rootjQuery.ready( selector ) : - // Execute immediately if ready is not present - selector( jQuery ); - } - - if ( selector.selector !== undefined ) { - this.selector = selector.selector; - this.context = selector.context; - } - - return jQuery.makeArray( selector, this ); - }, - // Start with an empty selector selector: "", @@ -242,9 +124,6 @@ jQuery.fn = jQuery.prototype = { splice: deletedIds.splice }; -// Give the init function the jQuery prototype for later instantiation -jQuery.fn.init.prototype = jQuery.fn; - jQuery.extend = jQuery.fn.extend = function() { var src, copyIsArray, copy, name, options, clone, target = arguments[0] || {}, @@ -348,6 +227,51 @@ jQuery.extend({ return !isNaN( parseFloat(obj) ) && isFinite( obj ); }, + isEmptyObject: function( obj ) { + var name; + for ( name in obj ) { + return false; + } + return true; + }, + + isPlainObject: function( obj ) { + var key; + + // Must be an Object. + // Because of IE, we also have to check the presence of the constructor property. + // Make sure that DOM nodes and window objects don't pass through, as well + if ( !obj || jQuery.type(obj) !== "object" || obj.nodeType || jQuery.isWindow( obj ) ) { + return false; + } + + try { + // Not own constructor property must be Object + if ( obj.constructor && + !hasOwn.call(obj, "constructor") && + !hasOwn.call(obj.constructor.prototype, "isPrototypeOf") ) { + return false; + } + } catch ( e ) { + // IE8,9 Will throw exceptions on certain host objects #9897 + return false; + } + + // Support: IE<9 + // Handle iteration over inherited properties before own properties. + if ( support.ownLast ) { + for ( key in obj ) { + return hasOwn.call( obj, key ); + } + } + + // Own properties are enumerated firstly, so to speed up, + // if last one is own, then all properties are own. + for ( key in obj ) {} + + return key === undefined || hasOwn.call( obj, key ); + }, + type: function( obj ) { if ( obj == null ) { return String( obj ); @@ -357,14 +281,6 @@ jQuery.extend({ typeof obj; }, - isEmptyObject: function( obj ) { - var name; - for ( name in obj ) { - return false; - } - return true; - }, - error: function( msg ) { throw new Error( msg ); }, @@ -615,54 +531,6 @@ jQuery.extend({ support: support }); - -// Support: IE<9 -// Iteration over object's inherited properties before its own. -// It would be better to move this test to one of test modules but since -// tests require the jQuery object to exist as well as some other variables set -// core initialization is needed first for tests used in core itself. -for ( i in jQuery( support ) ) { - break; -} -support.ownLast = i !== "0"; - -jQuery.isPlainObject = function( obj ) { - var key; - - // Must be an Object. - // Because of IE, we also have to check the presence of the constructor property. - // Make sure that DOM nodes and window objects don't pass through, as well - if ( !obj || jQuery.type(obj) !== "object" || obj.nodeType || jQuery.isWindow( obj ) ) { - return false; - } - - try { - // Not own constructor property must be Object - if ( obj.constructor && - !hasOwn.call(obj, "constructor") && - !hasOwn.call(obj.constructor.prototype, "isPrototypeOf") ) { - return false; - } - } catch ( e ) { - // IE8,9 Will throw exceptions on certain host objects #9897 - return false; - } - - // Support: IE<9 - // Handle iteration over inherited properties before own properties. - if ( support.ownLast ) { - for ( key in obj ) { - return hasOwn.call( obj, key ); - } - } - - // Own properties are enumerated firstly, so to speed up, - // if last one is own, then all properties are own. - for ( key in obj ) {} - - return key === undefined || hasOwn.call( obj, key ); -}; - // Populate the class2type map jQuery.each("Boolean Number String Function Array Date RegExp Object Error".split(" "), function(i, name) { class2type[ "[object " + name + "]" ] = name.toLowerCase(); @@ -685,8 +553,5 @@ function isArraylike( obj ) { typeof length === "number" && length > 0 && ( length - 1 ) in obj ); } -// All jQuery objects should point back to these -rootjQuery = jQuery( document ); - return jQuery; }); |