1 // Copyright 2014 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 var normalizeArgumentsAndValidate = 6 require('schemaUtils').normalizeArgumentsAndValidate 7 var sendRequest = require('sendRequest').sendRequest; 8 9 function extendSchema(schema) { 10 var extendedSchema = $Array.slice(schema); 11 extendedSchema.unshift({'type': 'string'}); 12 return extendedSchema; 13 } 14 15 function StorageArea(namespace, schema) { 16 // Binds an API function for a namespace to its browser-side call, e.g. 17 // storage.sync.get('foo') -> (binds to) -> 18 // storage.get('sync', 'foo'). 19 // 20 // TODO(kalman): Put as a method on CustombindingObject and re-use (or 21 // even generate) for other APIs that need to do this. Same for other 22 // callers of registerCustomType(). 23 var self = this; 24 function bindApiFunction(functionName) { 25 self[functionName] = function() { 26 var funSchema = this.functionSchemas[functionName]; 27 var args = $Array.slice(arguments); 28 args = normalizeArgumentsAndValidate(args, funSchema); 29 return sendRequest( 30 'storage.' + functionName, 31 $Array.concat([namespace], args), 32 extendSchema(funSchema.definition.parameters), 33 {preserveNullInObjects: true}); 34 }; 35 } 36 var apiFunctions = ['get', 'set', 'remove', 'clear', 'getBytesInUse']; 37 $Array.forEach(apiFunctions, bindApiFunction); 38 } 39 40 exports.StorageArea = StorageArea; 41
