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/**
* @author mrdoob / http://mrdoob.com/
*/
var Storage = function () {
var indexedDB = window.indexedDB || window.mozIndexedDB || window.webkitIndexedDB || window.msIndexedDB;
if ( indexedDB === undefined ) {
console.warn( 'Storage: IndexedDB not available.' );
return { init: function () {}, get: function () {}, set: function () {}, clear: function () {} };
}
var name = 'threejs-editor';
var version = 1;
var database;
return {
init: function ( callback ) {
var request = indexedDB.open( name, version );
request.onupgradeneeded = function ( event ) {
var db = event.target.result;
if ( db.objectStoreNames.contains( 'states' ) === false ) {
db.createObjectStore( 'states' );
}
};
request.onsuccess = function ( event ) {
database = event.target.result;
callback();
};
request.onerror = function ( event ) {
console.error( 'IndexedDB', event );
};
},
get: function ( callback ) {
var transaction = database.transaction( [ 'states' ], 'readwrite' );
var objectStore = transaction.objectStore( 'states' );
var request = objectStore.get( 0 );
request.onsuccess = function ( event ) {
callback( event.target.result );
};
},
set: function ( data, callback ) {
var start = performance.now();
var transaction = database.transaction( [ 'states' ], 'readwrite' );
var objectStore = transaction.objectStore( 'states' );
var request = objectStore.put( data, 0 );
request.onsuccess = function ( event ) {
console.log( '[' + /\d\d\:\d\d\:\d\d/.exec( new Date() )[ 0 ] + ']', 'Saved state to IndexedDB. ' + ( performance.now() - start ).toFixed( 2 ) + 'ms' );
};
},
clear: function () {
if ( database === undefined ) return;
var transaction = database.transaction( [ 'states' ], 'readwrite' );
var objectStore = transaction.objectStore( 'states' );
var request = objectStore.clear();
request.onsuccess = function ( event ) {
console.log( '[' + /\d\d\:\d\d\:\d\d/.exec( new Date() )[ 0 ] + ']', 'Cleared IndexedDB.' );
};
}
};
};
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