HistoryController.h [plain text]
#ifndef HistoryController_h
#define HistoryController_h
#include "FrameLoaderTypes.h"
#include "PlatformString.h"
#include "SerializedScriptValue.h"
#include <wtf/Noncopyable.h>
#include <wtf/RefPtr.h>
namespace WebCore {
class Frame;
class HistoryItem;
class SerializedScriptValue;
class StringWithDirection;
class HistoryController {
WTF_MAKE_NONCOPYABLE(HistoryController);
public:
enum HistoryUpdateType { UpdateAll, UpdateAllExceptBackForwardList };
HistoryController(Frame*);
~HistoryController();
void saveScrollPositionAndViewStateToItem(HistoryItem*);
void restoreScrollPositionAndViewState();
void updateBackForwardListForFragmentScroll();
void saveDocumentState();
void saveDocumentAndScrollState();
void restoreDocumentState();
void invalidateCurrentItemCachedPage();
void updateForBackForwardNavigation();
void updateForReload();
void updateForStandardLoad(HistoryUpdateType updateType = UpdateAll);
void updateForRedirectWithLockedBackForwardList();
void updateForClientRedirect();
void updateForCommit();
void updateForSameDocumentNavigation();
void updateForFrameLoadCompleted();
HistoryItem* currentItem() const { return m_currentItem.get(); }
void setCurrentItem(HistoryItem*);
void setCurrentItemTitle(const StringWithDirection&);
bool currentItemShouldBeReplaced() const;
HistoryItem* previousItem() const { return m_previousItem.get(); }
HistoryItem* provisionalItem() const { return m_provisionalItem.get(); }
void setProvisionalItem(HistoryItem*);
void pushState(PassRefPtr<SerializedScriptValue>, const String& title, const String& url);
void replaceState(PassRefPtr<SerializedScriptValue>, const String& title, const String& url);
void setDefersLoading(bool);
private:
friend class Page;
bool shouldStopLoadingForHistoryItem(HistoryItem*) const;
void goToItem(HistoryItem*, FrameLoadType);
void initializeItem(HistoryItem*);
PassRefPtr<HistoryItem> createItem();
PassRefPtr<HistoryItem> createItemTree(Frame* targetFrame, bool clipAtTarget);
void recursiveSetProvisionalItem(HistoryItem*, HistoryItem*, FrameLoadType);
void recursiveGoToItem(HistoryItem*, HistoryItem*, FrameLoadType);
bool isReplaceLoadTypeWithProvisionalItem(FrameLoadType);
bool isReloadTypeWithProvisionalItem(FrameLoadType);
void recursiveUpdateForCommit();
void recursiveUpdateForSameDocumentNavigation();
bool itemsAreClones(HistoryItem*, HistoryItem*) const;
bool currentFramesMatchItem(HistoryItem*) const;
void updateBackForwardListClippedAtTarget(bool doClip);
void updateCurrentItem();
Frame* m_frame;
RefPtr<HistoryItem> m_currentItem;
RefPtr<HistoryItem> m_previousItem;
RefPtr<HistoryItem> m_provisionalItem;
bool m_frameLoadComplete;
bool m_defersLoading;
RefPtr<HistoryItem> m_deferredItem;
FrameLoadType m_deferredFrameLoadType;
};
}
#endif // HistoryController_h