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// Copyright (c) 2006-2008 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 WEBKIT_ACTIVEX_SHIM_NPN_SCRIPTING_H__
#define WEBKIT_ACTIVEX_SHIM_NPN_SCRIPTING_H__
#include <string>
#include "webkit/glue/plugins/nphostapi.h"
namespace activex_shim {
class NPNWindow;
class NPNDocument;
// Simplifies querying and calling methods of a scriptable NPObject
class NPNScriptableObject {
public:
NPNScriptableObject();
// The caller should leave the NPObject to me and don't worry about releasing
// the NPObject.
NPNScriptableObject(NPP npp, NPObject* object);
// Implement copy constructor so that we could easily do things like:
// NPNScriptableObject location = window.GetObjectProperty("location");
// In this copy constructor we will ask the browser to add ref to the
// underlying NPObject (retainobject).
NPNScriptableObject(NPNScriptableObject& object);
// We will call the browser to release the object.
~NPNScriptableObject();
// We will take over the object. Thus we don't add ref here.
void Init(NPP npp, NPObject* object);
// Release container object and set it to NULL.
void Release();
// Reference counting for assignment
NPNScriptableObject& operator=(NPNScriptableObject& object);
bool IsValid() { return object_ != NULL; }
bool HasProperty(const std::string& name);
// Caller is responsible to release the ret value if succeeded.
bool GetProperty(const std::string& name, NPVariant* ret);
bool SetProperty(const std::string& name, const NPVariant& val);
// More specific Get/Set properties for convenience.
// If you don't care if the call was successful, you can pass succeeded as
// NULL. It is used to differentiate the case when we get an empty string,
// and don't know if it is because the call failed or not.
std::wstring GetStringProperty(const std::string& name, bool* succeeded);
std::wstring GetStringProperty(const std::string& name) {
return GetStringProperty(name, NULL);
}
bool SetStringProperty(const std::string& name, const std::wstring& val);
// See comments for GetStringProperty.
NPNScriptableObject GetObjectProperty(const std::string& name,
bool* succeeded);
NPNScriptableObject GetObjectProperty(const std::string& name) {
return GetObjectProperty(name, NULL);
}
// Invoke a method of the NPObject. format should be exactly like (only the
// ones listed here are supported):
// %s: the following param is a null terminated wchar_t* string.
// %d: the following param is an integer.
// Example: window.Invoke("open", "%s%s", L"http://b", L"_blank")
// This is only used internally so we have control over format string.
bool Invoke(const std::string& name, const char* format, ...);
private:
// Which NP instance created me. Used to pass as parameters in NPN_Invoke
// like calls.
NPP npp_;
// The NPObject that I am operating on.
NPObject* object_;
};
// Helper class to simplify use of NPVariant. Never add any virtual function
// or member variables to this class because we will use it like
// vector<NPVariantWrap> and pass the internal array as NPVariant* to NPAPI
// calls.
struct NPVariantWrap : public NPVariant {
NPVariantWrap();
NPVariantWrap(const NPVariantWrap& v);
~NPVariantWrap();
NPVariantWrap& operator=(const NPVariantWrap& v);
void Release();
void Copy(const NPVariant& v);
void SetBool(bool val);
void SetInt(int val);
void SetString(const std::wstring& val);
void SetUTF8String(const NPUTF8* p, unsigned int size);
};
} // namespace activex_shim
#endif // #ifndef WEBKIT_ACTIVEX_SHIM_NPN_SCRIPTING_H__
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