Software: Apache. PHP/5.5.15 uname -a: Windows NT SVR-DMZ 6.1 build 7600 (Windows Server 2008 R2 Enterprise Edition) i586 SYSTEM Safe-mode: OFF (not secure) C:\dmz\phpMyAdmin\js\jquery\src\jquery\ drwxrwxrwx |
Viewing file: data.js (9.55 KB) -rw-rw-rw- Select action/file-type: (+) | (+) | (+) | Code (+) | Session (+) | (+) | SDB (+) | (+) | (+) | (+) | (+) | (+) | /* Implementation Summary 1. Enforce API surface and semantic compatibility with 1.9.x branch 2. Improve the module's maintainability by reducing the storage paths to a single mechanism. 3. Use the same single mechanism to support "private" and "user" data. 4. _Never_ expose "private" data to user code (TODO: Drop _data, _removeData) 5. Avoid exposing implementation details on user objects (eg. expando properties) 6. Provide a clear path for implementation upgrade to WeakMap in 2014 */ var data_user, data_priv, rbrace = /(?:\{[\s\S]*\}|\[[\s\S]*\])$/, rmultiDash = /([A-Z])/g; function Data() { // Support: Android < 4, // Old WebKit does not have Object.preventExtensions/freeze method, // return new empty object instead with no [[set]] accessor Object.defineProperty( this.cache = {}, 0, { get: function() { return {}; } }); this.expando = jQuery.expando + Math.random(); } Data.uid = 1; Data.accepts = function( owner ) { // Accepts only: // - Node // - Node.ELEMENT_NODE // - Node.DOCUMENT_NODE // - Object // - Any return owner.nodeType ? owner.nodeType === 1 || owner.nodeType === 9 : true; }; Data.prototype = { key: function( owner ) { // We can accept data for non-element nodes in modern browsers, // but we should not, see #8335. // Always return the key for a frozen object. if ( !Data.accepts( owner ) ) { return 0; } var descriptor = {}, // Check if the owner object already has a cache key unlock = owner[ this.expando ]; // If not, create one if ( !unlock ) { unlock = Data.uid++; // Secure it in a non-enumerable, non-writable property try { descriptor[ this.expando ] = { value: unlock }; Object.defineProperties( owner, descriptor ); // Support: Android < 4 // Fallback to a less secure definition } catch ( e ) { descriptor[ this.expando ] = unlock; jQuery.extend( owner, descriptor ); } } // Ensure the cache object if ( !this.cache[ unlock ] ) { this.cache[ unlock ] = {}; } return unlock; }, set: function( owner, data, value ) { var prop, // There may be an unlock assigned to this node, // if there is no entry for this "owner", create one inline // and set the unlock as though an owner entry had always existed unlock = this.key( owner ), cache = this.cache[ unlock ]; // Handle: [ owner, key, value ] args if ( typeof data === "string" ) { cache[ data ] = value; // Handle: [ owner, { properties } ] args } else { // Fresh assignments by object are shallow copied if ( jQuery.isEmptyObject( cache ) ) { jQuery.extend( this.cache[ unlock ], data ); // Otherwise, copy the properties one-by-one to the cache object } else { for ( prop in data ) { cache[ prop ] = data[ prop ]; } } } return cache; }, get: function( owner, key ) { // Either a valid cache is found, or will be created. // New caches will be created and the unlock returned, // allowing direct access to the newly created // empty data object. A valid owner object must be provided. var cache = this.cache[ this.key( owner ) ]; return key === undefined ? cache : cache[ key ]; }, access: function( owner, key, value ) { var stored; // In cases where either: // // 1. No key was specified // 2. A string key was specified, but no value provided // // Take the "read" path and allow the get method to determine // which value to return, respectively either: // // 1. The entire cache object // 2. The data stored at the key // if ( key === undefined || ((key && typeof key === "string") && value === undefined) ) { stored = this.get( owner, key ); return stored !== undefined ? stored : this.get( owner, jQuery.camelCase(key) ); } // [*]When the key is not a string, or both a key and value // are specified, set or extend (existing objects) with either: // // 1. An object of properties // 2. A key and value // this.set( owner, key, value ); // Since the "set" path can have two possible entry points // return the expected data based on which path was taken[*] return value !== undefined ? value : key; }, remove: function( owner, key ) { var i, name, camel, unlock = this.key( owner ), cache = this.cache[ unlock ]; if ( key === undefined ) { this.cache[ unlock ] = {}; } else { // Support array or space separated string of keys if ( jQuery.isArray( key ) ) { // If "name" is an array of keys... // When data is initially created, via ("key", "val") signature, // keys will be converted to camelCase. // Since there is no way to tell _how_ a key was added, remove // both plain key and camelCase key. #12786 // This will only penalize the array argument path. name = key.concat( key.map( jQuery.camelCase ) ); } else { camel = jQuery.camelCase( key ); // Try the string as a key before any manipulation if ( key in cache ) { name = [ key, camel ]; } else { // If a key with the spaces exists, use it. // Otherwise, create an array by matching non-whitespace name = camel; name = name in cache ? [ name ] : ( name.match( core_rnotwhite ) || [] ); } } i = name.length; while ( i-- ) { delete cache[ name[ i ] ]; } } }, hasData: function( owner ) { return !jQuery.isEmptyObject( this.cache[ owner[ this.expando ] ] || {} ); }, discard: function( owner ) { if ( owner[ this.expando ] ) { delete this.cache[ owner[ this.expando ] ]; } } }; // These may be used throughout the jQuery core codebase data_user = new Data(); data_priv = new Data(); jQuery.extend({ acceptData: Data.accepts, hasData: function( elem ) { return data_user.hasData( elem ) || data_priv.hasData( elem ); }, data: function( elem, name, data ) { return data_user.access( elem, name, data ); }, removeData: function( elem, name ) { data_user.remove( elem, name ); }, // TODO: Now that all calls to _data and _removeData have been replaced // with direct calls to data_priv methods, these can be deprecated. _data: function( elem, name, data ) { return data_priv.access( elem, name, data ); }, _removeData: function( elem, name ) { data_priv.remove( elem, name ); } }); jQuery.fn.extend({ data: function( key, value ) { var attrs, name, elem = this[ 0 ], i = 0, data = null; // Gets all values if ( key === undefined ) { if ( this.length ) { data = data_user.get( elem ); if ( elem.nodeType === 1 && !data_priv.get( elem, "hasDataAttrs" ) ) { attrs = elem.attributes; for ( ; i < attrs.length; i++ ) { name = attrs[ i ].name; if ( name.indexOf( "data-" ) === 0 ) { name = jQuery.camelCase( name.slice(5) ); dataAttr( elem, name, data[ name ] ); } } data_priv.set( elem, "hasDataAttrs", true ); } } return data; } // Sets multiple values if ( typeof key === "object" ) { return this.each(function() { data_user.set( this, key ); }); } return jQuery.access( this, function( value ) { var data, camelKey = jQuery.camelCase( key ); // The calling jQuery object (element matches) is not empty // (and therefore has an element appears at this[ 0 ]) and the // `value` parameter was not undefined. An empty jQuery object // will result in `undefined` for elem = this[ 0 ] which will // throw an exception if an attempt to read a data cache is made. if ( elem && value === undefined ) { // Attempt to get data from the cache // with the key as-is data = data_user.get( elem, key ); if ( data !== undefined ) { return data; } // Attempt to get data from the cache // with the key camelized data = data_user.get( elem, camelKey ); if ( data !== undefined ) { return data; } // Attempt to "discover" the data in // HTML5 custom data-* attrs data = dataAttr( elem, camelKey, undefined ); if ( data !== undefined ) { return data; } // We tried really hard, but the data doesn't exist. return; } // Set the data... this.each(function() { // First, attempt to store a copy or reference of any // data that might've been store with a camelCased key. var data = data_user.get( this, camelKey ); // For HTML5 data-* attribute interop, we have to // store property names with dashes in a camelCase form. // This might not apply to all properties...* data_user.set( this, camelKey, value ); // *... In the case of properties that might _actually_ // have dashes, we need to also store a copy of that // unchanged property. if ( key.indexOf("-") !== -1 && data !== undefined ) { data_user.set( this, key, value ); } }); }, null, value, arguments.length > 1, null, true ); }, removeData: function( key ) { return this.each(function() { data_user.remove( this, key ); }); } }); function dataAttr( elem, key, data ) { var name; // If nothing was found internally, try to fetch any // data from the HTML5 data-* attribute if ( data === undefined && elem.nodeType === 1 ) { name = "data-" + key.replace( rmultiDash, "-$1" ).toLowerCase(); data = elem.getAttribute( name ); if ( typeof data === "string" ) { try { data = data === "true" ? true : data === "false" ? false : data === "null" ? null : // Only convert to a number if it doesn't change the string +data + "" === data ? +data : rbrace.test( data ) ? JSON.parse( data ) : data; } catch( e ) {} // Make sure we set the data so it isn't changed later data_user.set( elem, key, data ); } else { data = undefined; } } return data; } |
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