WebContextUserMessageCoders.h [plain text]
#include "UserMessageCoders.h"
#include "WebContext.h"
#include "WebFrameProxy.h"
#include "WebPageGroup.h"
#include "WebPageGroupData.h"
#include "WebPageProxy.h"
#if PLATFORM(MAC)
#include "ObjCObjectGraphCoders.h"
#endif
namespace WebKit {
class WebContextUserMessageEncoder : public UserMessageEncoder<WebContextUserMessageEncoder> {
public:
typedef UserMessageEncoder<WebContextUserMessageEncoder> Base;
explicit WebContextUserMessageEncoder(APIObject* root)
: Base(root)
{
}
void encode(CoreIPC::ArgumentEncoder& encoder) const
{
APIObject::Type type = APIObject::TypeNull;
if (baseEncode(encoder, type))
return;
switch (type) {
case APIObject::TypePage: {
WebPageProxy* page = static_cast<WebPageProxy*>(m_root);
encoder << page->pageID();
break;
}
case APIObject::TypeFrame: {
WebFrameProxy* frame = static_cast<WebFrameProxy*>(m_root);
encoder << frame->frameID();
break;
}
case APIObject::TypePageGroup: {
WebPageGroup* pageGroup = static_cast<WebPageGroup*>(m_root);
encoder << pageGroup->data();
break;
}
#if PLATFORM(MAC)
case APIObject::TypeObjCObjectGraph: {
ObjCObjectGraph* objectGraph = static_cast<ObjCObjectGraph*>(m_root);
encoder << WebContextObjCObjectGraphEncoder(objectGraph);
break;
}
#endif
default:
ASSERT_NOT_REACHED();
break;
}
}
};
class WebContextUserMessageDecoder : public UserMessageDecoder<WebContextUserMessageDecoder> {
public:
typedef UserMessageDecoder<WebContextUserMessageDecoder> Base;
WebContextUserMessageDecoder(RefPtr<APIObject>& root, WebProcessProxy* process)
: Base(root)
, m_process(process)
{
}
WebContextUserMessageDecoder(WebContextUserMessageDecoder& userMessageDecoder, RefPtr<APIObject>& root)
: Base(root)
, m_process(userMessageDecoder.m_process)
{
}
static bool decode(CoreIPC::ArgumentDecoder& decoder, WebContextUserMessageDecoder& coder)
{
APIObject::Type type = APIObject::TypeNull;
if (!Base::baseDecode(decoder, coder, type))
return false;
if (coder.m_root || type == APIObject::TypeNull)
return true;
switch (type) {
case APIObject::TypeBundlePage: {
uint64_t pageID;
if (!decoder.decode(pageID))
return false;
coder.m_root = coder.m_process->webPage(pageID);
break;
}
case APIObject::TypeBundleFrame: {
uint64_t frameID;
if (!decoder.decode(frameID))
return false;
coder.m_root = coder.m_process->webFrame(frameID);
break;
}
case APIObject::TypeBundlePageGroup: {
uint64_t pageGroupID;
if (!decoder.decode(pageGroupID))
return false;
coder.m_root = WebPageGroup::get(pageGroupID);
break;
}
#if PLATFORM(MAC)
case APIObject::TypeObjCObjectGraph: {
RefPtr<ObjCObjectGraph> objectGraph;
WebContextObjCObjectGraphDecoder objectGraphDecoder(objectGraph, coder.m_process);
if (!decoder.decode(objectGraphDecoder))
return false;
coder.m_root = objectGraph.get();
break;
}
#endif
default:
return false;
}
return true;
}
private:
WebProcessProxy* m_process;
};
}