#ifndef FormController_h
#define FormController_h
#include "core/html/forms/RadioButtonGroupScope.h"
#include "wtf/Forward.h"
#include "wtf/ListHashSet.h"
#include "wtf/Vector.h"
#include "wtf/text/AtomicStringHash.h"
namespace WebCore {
class FormAssociatedElement;
class FormKeyGenerator;
class HTMLFormControlElementWithState;
class HTMLFormElement;
class SavedFormState;
class FormControlState {
public:
FormControlState() : m_type(TypeSkip) { }
explicit FormControlState(const String& value) : m_type(TypeRestore) { m_values.append(value); }
static FormControlState deserialize(const Vector<String>& stateVector, size_t& index);
FormControlState(const FormControlState& another) : m_type(another.m_type), m_values(another.m_values) { }
FormControlState& operator=(const FormControlState&);
bool isFailure() const { return m_type == TypeFailure; }
size_t valueSize() const { return m_values.size(); }
const String& operator[](size_t i) const { return m_values[i]; }
void append(const String&);
void serializeTo(Vector<String>& stateVector) const;
private:
enum Type { TypeSkip, TypeRestore, TypeFailure };
explicit FormControlState(Type type) : m_type(type) { }
Type m_type;
Vector<String> m_values;
};
inline FormControlState& FormControlState::operator=(const FormControlState& another)
{
m_type = another.m_type;
m_values = another.m_values;
return *this;
}
inline void FormControlState::append(const String& value)
{
m_type = TypeRestore;
m_values.append(value);
}
class FormController {
WTF_MAKE_FAST_ALLOCATED;
public:
static PassOwnPtr<FormController> create()
{
return adoptPtr(new FormController);
}
~FormController();
RadioButtonGroupScope& radioButtonGroupScope() { return m_radioButtonGroupScope; }
void registerStatefulFormControl(HTMLFormControlElementWithState&);
void unregisterStatefulFormControl(HTMLFormControlElementWithState&);
Vector<String> formElementsState() const;
void setStateForNewFormElements(const Vector<String>&);
void willDeleteForm(HTMLFormElement*);
void restoreControlStateFor(HTMLFormControlElementWithState&);
void restoreControlStateIn(HTMLFormElement&);
static Vector<String> getReferencedFilePaths(const Vector<String>& stateVector);
private:
typedef ListHashSet<RefPtr<HTMLFormControlElementWithState>, 64> FormElementListHashSet;
typedef HashMap<AtomicString, OwnPtr<SavedFormState> > SavedFormStateMap;
FormController();
static PassOwnPtr<SavedFormStateMap> createSavedFormStateMap(const FormElementListHashSet&);
FormControlState takeStateForFormElement(const HTMLFormControlElementWithState&);
static void formStatesFromStateVector(const Vector<String>&, SavedFormStateMap&);
RadioButtonGroupScope m_radioButtonGroupScope;
FormElementListHashSet m_formControls;
SavedFormStateMap m_savedFormStateMap;
OwnPtr<FormKeyGenerator> m_formKeyGenerator;
};
}
#endif