/* Copyright (c) 2010 The Chromium Authors. All rights reserved. * Use of this source code is governed by a BSD-style license that can be * found in the LICENSE file. */ #ifndef PPAPI_C_PPP_CLASS_DEPRECATED_H_ #define PPAPI_C_PPP_CLASS_DEPRECATED_H_ #include "ppapi/c/dev/deprecated_bool.h" #include "ppapi/c/pp_stdint.h" #include "ppapi/c/pp_var.h" /** * @file * Defines the PPP_Class_Deprecated struct. * * @addtogroup PPP * @{ */ struct PP_Var; /** * Interface for the plugin to implement JavaScript-accessible objects. * * This interface has no interface name. Instead, the plugin passes a pointer * to this interface to PPB_Var_Deprecated.CreateObject that corresponds to the * object being implemented. * * See the PPB_Var_Deprecated interface for more information on these functions. * This interface just allows you to implement the "back end" of those * functions, so most of the contract is specified in that interface. * * See * http://code.google.com/p/ppapi/wiki/InterfacingWithJavaScript * for general information on using and implementing vars. */ struct PPP_Class_Deprecated { /** * |name| is guaranteed to be an integer or string type var. Exception is * guaranteed non-NULL. An integer is used for |name| when implementing * array access into the object. This test should only return true for * properties that are not methods. Use HasMethod() to handle methods. */ bool (*HasProperty)(void* object, struct PP_Var name, struct PP_Var* exception); /** * |name| is guaranteed to be a string-type. Exception is guaranteed non-NULL. * If the method does not exist, return false and don't set the exception. * Errors in this function will probably not occur in general usage, but * if you need to throw an exception, still return false. */ bool (*HasMethod)(void* object, struct PP_Var name, struct PP_Var* exception); /** * |name| is guaranteed to be a string-type or an integer-type var. Exception * is guaranteed non-NULL. An integer is used for |name| when implementing * array access into the object. If the property does not exist, set the * exception and return a var of type Void. A property does not exist if * a call HasProperty() for the same |name| would return false. */ struct PP_Var (*GetProperty)(void* object, struct PP_Var name, struct PP_Var* exception); /** * Exception is guaranteed non-NULL. * * This should include all enumerable properties, including methods. Be sure * to set |*property_count| to 0 and |properties| to NULL in all failure * cases, these should never be unset when calling this function. The * pointers passed in are guaranteed not to be NULL, so you don't have to * NULL check them. * * If you have any properties, allocate the property array with * PPB_Core.MemAlloc(sizeof(PP_Var) * property_count) and add a reference * to each property on behalf of the caller. The caller is responsible for * Release()ing each var and calling PPB_Core.MemFree on the property pointer. */ void (*GetAllPropertyNames)(void* object, uint32_t* property_count, struct PP_Var** properties, struct PP_Var* exception); /** * |name| is guaranteed to be an integer or string type var. Exception is * guaranteed non-NULL. */ void (*SetProperty)(void* object, struct PP_Var name, struct PP_Var value, struct PP_Var* exception); /** * |name| is guaranteed to be an integer or string type var. Exception is * guaranteed non-NULL. */ void (*RemoveProperty)(void* object, struct PP_Var name, struct PP_Var* exception); // TODO(brettw) need native array access here. /** * |name| is guaranteed to be a string type var. Exception is guaranteed * non-NULL */ struct PP_Var (*Call)(void* object, struct PP_Var method_name, uint32_t argc, struct PP_Var* argv, struct PP_Var* exception); /** Exception is guaranteed non-NULL. */ struct PP_Var (*Construct)(void* object, uint32_t argc, struct PP_Var* argv, struct PP_Var* exception); /** * Called when the reference count of the object reaches 0. Normally, plugins * would free their internal data pointed to by the |object| pointer. */ void (*Deallocate)(void* object); }; /** * @} * End addtogroup PPP */ #endif /* PPAPI_C_PPP_CLASS_DEPRECATED_H_ */