NavigationScheduler.h [plain text]
#ifndef NavigationScheduler_h
#define NavigationScheduler_h
#include "FrameLoaderTypes.h"
#include "Timer.h"
#include <wtf/Forward.h>
namespace WebCore {
class Document;
class FormSubmission;
class Frame;
class ScheduledNavigation;
class SecurityOrigin;
class SubstituteData;
class URL;
class NavigationDisablerForBeforeUnload {
public:
NavigationDisablerForBeforeUnload()
{
s_navigationDisableCount++;
}
~NavigationDisablerForBeforeUnload()
{
ASSERT(s_navigationDisableCount);
s_navigationDisableCount--;
}
static bool isNavigationAllowed() { return !s_navigationDisableCount; }
private:
static unsigned s_navigationDisableCount;
};
class NavigationScheduler {
public:
explicit NavigationScheduler(Frame&);
~NavigationScheduler();
bool redirectScheduledDuringLoad();
bool locationChangePending();
void scheduleRedirect(Document* initiatingDocument, double delay, const URL&);
void scheduleLocationChange(Document* initiatingDocument, SecurityOrigin*, const URL&, const String& referrer, LockHistory = LockHistory::Yes, LockBackForwardList = LockBackForwardList::Yes);
void scheduleFormSubmission(PassRefPtr<FormSubmission>);
void scheduleRefresh(Document* initiatingDocument);
void scheduleHistoryNavigation(int steps);
void scheduleSubstituteDataLoad(const URL& baseURL, const SubstituteData&);
void startTimer();
void cancel(bool newLoadInProgress = false);
void clear();
private:
bool shouldScheduleNavigation() const;
bool shouldScheduleNavigation(const URL&) const;
void timerFired();
void schedule(std::unique_ptr<ScheduledNavigation>);
static LockBackForwardList mustLockBackForwardList(Frame& targetFrame);
Frame& m_frame;
Timer m_timer;
std::unique_ptr<ScheduledNavigation> m_redirect;
};
}
#endif // NavigationScheduler_h