;;'use strict';var objectStore=(function(){const DBNAME='LOCKEDCONTENT';const DBVERSION=1;const STORENAMES=['ringtones','wallpapers'];var db;function getStore(access,storeName,callback){if(STORENAMES.indexOf(storeName)===-1){throw Error('unknown object store name:',storeName);}
if(db){callback(db.transaction(storeName,access).objectStore(storeName));}
else{initDB(function(){getStore(access,storeName,callback);});}}
function initDB(callback){var open=indexedDB.open(DBNAME,DBVERSION);open.onsuccess=function(){db=open.result;callback();};open.onupgradeneeded=function(){STORENAMES.forEach(function(storeName){open.result.createObjectStore(storeName,{autoIncrement:true,keyPath:'id'});});};open.onerror=function(){console.error('can not open database:',open.error.name);};}
return{readonly:function readonly(storeName,callback){getStore('readonly',storeName,callback);},readwrite:function readwrite(storeName,callback){getStore('readwrite',storeName,callback);}};}());