WebBackForwardCache.h [plain text]
#pragma once
#include <WebCore/ProcessIdentifier.h>
#include <pal/SessionID.h>
#include <wtf/Forward.h>
#include <wtf/Vector.h>
namespace WebKit {
class SuspendedPageProxy;
class WebBackForwardCacheEntry;
class WebBackForwardListItem;
class WebPageProxy;
class WebProcessPool;
class WebProcessProxy;
class WebBackForwardCache {
WTF_MAKE_FAST_ALLOCATED;
public:
explicit WebBackForwardCache(WebProcessPool&);
~WebBackForwardCache();
void setCapacity(unsigned);
unsigned capacity() const { return m_capacity; }
unsigned size() const { return m_itemsWithCachedPage.size(); }
void clear();
void pruneToSize(unsigned);
void removeEntriesForProcess(WebProcessProxy&);
void removeEntriesForPage(WebPageProxy&);
void removeEntriesForSession(PAL::SessionID);
void addEntry(WebBackForwardListItem&, std::unique_ptr<SuspendedPageProxy>&&);
void addEntry(WebBackForwardListItem&, WebCore::ProcessIdentifier);
void removeEntry(WebBackForwardListItem&);
void removeEntry(SuspendedPageProxy&);
std::unique_ptr<SuspendedPageProxy> takeSuspendedPage(WebBackForwardListItem&);
private:
void removeOldestEntry();
void removeEntriesMatching(const Function<bool(WebBackForwardListItem&)>&);
void addEntry(WebBackForwardListItem&, std::unique_ptr<WebBackForwardCacheEntry>&&);
WebProcessPool& m_processPool;
unsigned m_capacity { 0 };
Vector<WebBackForwardListItem*, 2> m_itemsWithCachedPage;
};
}