SuspendedPageProxy.h [plain text]
#pragma once
#include "Connection.h"
#include "ProcessThrottler.h"
#include "WebBackForwardListItem.h"
#include "WebPageProxyMessages.h"
#include <WebCore/SecurityOriginData.h>
#include <wtf/RefCounted.h>
#include <wtf/WeakPtr.h>
namespace WebKit {
class WebPageProxy;
class WebProcessProxy;
class SuspendedPageProxy final: public IPC::MessageReceiver, public CanMakeWeakPtr<SuspendedPageProxy> {
public:
SuspendedPageProxy(WebPageProxy&, Ref<WebProcessProxy>&&, WebBackForwardListItem&, uint64_t mainFrameID);
~SuspendedPageProxy();
WebPageProxy& page() const { return m_page; }
WebProcessProxy& process() { return m_process.get(); }
uint64_t mainFrameID() const { return m_mainFrameID; }
const String& registrableDomain() const { return m_registrableDomain; }
bool failedToSuspend() const { return m_suspensionState == SuspensionState::FailedToSuspend; }
void waitUntilReadyToUnsuspend(CompletionHandler<void(SuspendedPageProxy*)>&&);
void unsuspend();
void close();
#if !LOG_DISABLED
const char* loggingString() const;
#endif
private:
enum class SuspensionState : uint8_t { Suspending, FailedToSuspend, Suspended, Resumed };
void didProcessRequestToSuspend(SuspensionState);
void suspensionTimedOut();
void didReceiveMessage(IPC::Connection&, IPC::Decoder&) final;
void didReceiveSyncMessage(IPC::Connection&, IPC::Decoder&, std::unique_ptr<IPC::Encoder>&) final;
WebPageProxy& m_page;
Ref<WebProcessProxy> m_process;
uint64_t m_mainFrameID;
String m_registrableDomain;
bool m_isClosed { false };
SuspensionState m_suspensionState { SuspensionState::Suspending };
CompletionHandler<void(SuspendedPageProxy*)> m_readyToUnsuspendHandler;
RunLoop::Timer<SuspendedPageProxy> m_suspensionTimeoutTimer;
#if PLATFORM(IOS_FAMILY)
ProcessThrottler::BackgroundActivityToken m_suspensionToken;
#endif
};
}