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// 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_CPP_SCRIPTABLE_OBJECT_DEPRECATED_H_
#define PPAPI_CPP_SCRIPTABLE_OBJECT_DEPRECATED_H_
#include <vector>
struct PPP_Class_Deprecated;
namespace pp {
class Var;
}
using pp::Var;
namespace pp {
namespace deprecated {
// This class allows you to implement objects accessible by JavaScript. Derive
// from this class and override the virtual functions you support. pp::Var has
// a constructor that takes a pointer to a ScriptableObject for when you want
// to convert your custom object to a var.
//
// Please see the PPB_Core C interface for more information on how to implement
// these functions. These functions are the backend implementation for the
// functions in PPB_Var, which contains further information.
//
// Please see:
// http://code.google.com/p/ppapi/wiki/InterfacingWithJavaScript
// for a general overview of interfacing with JavaScript.
class ScriptableObject {
public:
ScriptableObject() {}
virtual ~ScriptableObject() {}
// The default implementation returns false.
virtual bool HasProperty(const Var& name, Var* exception);
// The default implementation returns false.
virtual bool HasMethod(const Var& name, Var* exception);
// The default implementation sets an exception that the property doesn't
// exist.
virtual Var GetProperty(const Var& name, Var* exception);
// The default implementation returns no properties.
virtual void GetAllPropertyNames(std::vector<Var>* properties,
Var* exception);
// The default implementation sets an exception that the property can not be
// set.
virtual void SetProperty(const Var& name,
const Var& value,
Var* exception);
// The default implementation sets an exception that the method does not
// exist.
virtual void RemoveProperty(const Var& name,
Var* exception);
// TODO(brettw) need native array access here.
// method_name is guaranteed to be either a string or an integer.
//
// The default implementation sets an exception that the method does not
// exist.
virtual Var Call(const Var& method_name,
const std::vector<Var>& args,
Var* exception);
// The default implementation sets an exception that the method does not
// exist.
virtual Var Construct(const std::vector<Var>& args,
Var* exception);
private:
friend class ::pp::Var;
static const PPP_Class_Deprecated* GetClass();
// Unimplemented, copy and assigmnent is not allowed.
ScriptableObject(const ScriptableObject& other);
ScriptableObject& operator=(const ScriptableObject& other);
};
} // namespace deprecated
} // namespace pp
#endif // PPAPI_CPP_SCRIPTABLE_OBJECT_DEPRECATED_H_
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