BackForwardListImpl.h [plain text]
#ifndef BackForwardListImpl_h
#define BackForwardListImpl_h
#include "BackForwardList.h"
#include <wtf/HashSet.h>
#include <wtf/Vector.h>
namespace WebCore {
class Page;
typedef Vector<RefPtr<HistoryItem> > HistoryItemVector;
typedef HashSet<RefPtr<HistoryItem> > HistoryItemHashSet;
class BackForwardListImpl : public BackForwardList {
public:
static PassRefPtr<BackForwardListImpl> create(Page* page) { return adoptRef(new BackForwardListImpl(page)); }
virtual ~BackForwardListImpl();
Page* page() { return m_page; }
virtual void addItem(PassRefPtr<HistoryItem>);
void goBack();
void goForward();
virtual void goToItem(HistoryItem*);
HistoryItem* backItem();
HistoryItem* currentItem();
HistoryItem* forwardItem();
virtual HistoryItem* itemAtIndex(int);
void backListWithLimit(int, HistoryItemVector&);
void forwardListWithLimit(int, HistoryItemVector&);
int capacity();
void setCapacity(int);
bool enabled();
void setEnabled(bool);
virtual int backListCount();
virtual int forwardListCount();
bool containsItem(HistoryItem*);
virtual void close();
bool closed();
void removeItem(HistoryItem*);
HistoryItemVector& entries();
virtual unsigned current() OVERRIDE;
virtual void setCurrent(unsigned newCurrent) OVERRIDE;
virtual bool clearAllPageCaches() OVERRIDE;
private:
BackForwardListImpl(Page*);
virtual bool isActive() { return enabled() && capacity(); }
Page* m_page;
HistoryItemVector m_entries;
HistoryItemHashSet m_entryHash;
unsigned m_current;
unsigned m_capacity;
bool m_closed;
bool m_enabled;
};
}
#endif // BackForwardListImpl_h