1 // Copyright (c) 2012 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 // Custom binding for the declarativeContent API. 6 7 var binding = require('binding').Binding.create('declarativeContent'); 8 9 var utils = require('utils'); 10 var validate = require('schemaUtils').validate; 11 12 binding.registerCustomHook( function(api) { 13 var declarativeContent = api.compiledApi; 14 15 // Returns the schema definition of type |typeId| defined in |namespace|. 16 function getSchema(typeId) { 17 return utils.lookup(api.schema.types, 18 'id', 19 'declarativeContent.' + typeId); 20 } 21 22 // Helper function for the constructor of concrete datatypes of the 23 // declarative content API. 24 // Makes sure that |this| contains the union of parameters and 25 // {'instanceType': 'declarativeContent.' + typeId} and validates the 26 // generated union dictionary against the schema for |typeId|. 27 function setupInstance(instance, parameters, typeId) { 28 for (var key in parameters) { 29 if ($Object.hasOwnProperty(parameters, key)) { 30 instance[key] = parameters[key]; 31 } 32 } 33 instance.instanceType = 'declarativeContent.' + typeId; 34 var schema = getSchema(typeId); 35 validate([instance], [schema]); 36 } 37 38 // Setup all data types for the declarative content API. 39 declarativeContent.PageStateMatcher = function(parameters) { 40 setupInstance(this, parameters, 'PageStateMatcher'); 41 }; 42 declarativeContent.ShowPageAction = function(parameters) { 43 setupInstance(this, parameters, 'ShowPageAction'); 44 }; 45 }); 46 47 exports.binding = binding.generate(); 48
