Source/WebCore/loader/FrameLoaderStateMachine.cpp

/*
 * Copyright (C) 2010 Google Inc. All rights reserved.
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#include "config.h"
#include "FrameLoaderStateMachine.h"

#include <wtf/Assertions.h>

namespace WebCore {

    
FrameLoaderStateMachine::FrameLoaderStateMachine() 
    : m_state(CreatingInitialEmptyDocument)
{ 
}
    
bool FrameLoaderStateMachine::committingFirstRealLoad() const 
{
    return m_state == DisplayingInitialEmptyDocument;
}

bool FrameLoaderStateMachine::committedFirstRealDocumentLoad() const 
{
    return m_state >= DisplayingInitialEmptyDocumentPostCommit;
}

bool FrameLoaderStateMachine::creatingInitialEmptyDocument() const 
{
    return m_state == CreatingInitialEmptyDocument;
}

bool FrameLoaderStateMachine::isDisplayingInitialEmptyDocument() const 
{
    return m_state == DisplayingInitialEmptyDocument || m_state == DisplayingInitialEmptyDocumentPostCommit;
}

bool FrameLoaderStateMachine::firstLayoutDone() const
{
    return m_state == FirstLayoutDone;
}

void FrameLoaderStateMachine::advanceTo(State state)
{
    ASSERT(State(m_state + 1) == state || (firstLayoutDone() && state == CommittedFirstRealLoad));
    m_state = state;
}

} // namespace WebCore