1/*
2 * Copyright (C) 2006-2017 Apple Inc. All rights reserved.
3 * Copyright (C) 2010, 2011, 2012 Google Inc. All rights reserved.
4 *
5 * This library is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU Library General Public
7 * License as published by the Free Software Foundation; either
8 * version 2 of the License, or (at your option) any later version.
9 *
10 * This library is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * Library General Public License for more details.
14 *
15 * You should have received a copy of the GNU Library General Public License
16 * along with this library; see the file COPYING.LIB. If not, write to
17 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
18 * Boston, MA 02110-1301, USA.
19 *
20 */
21
22#pragma once
23
24#include "RadioButtonGroups.h"
25#include <wtf/Forward.h>
26#include <wtf/ListHashSet.h>
27#include <wtf/Vector.h>
28#include <wtf/text/WTFString.h>
29
30namespace WebCore {
31
32class FormKeyGenerator;
33class HTMLFormControlElementWithState;
34class HTMLFormElement;
35class SavedFormState;
36
37using FormControlState = Vector<String>;
38
39class FormController {
40 WTF_MAKE_FAST_ALLOCATED;
41public:
42 FormController();
43 ~FormController();
44
45 RadioButtonGroups& radioButtonGroups() { return m_radioButtonGroups; }
46
47 void registerFormElementWithState(HTMLFormControlElementWithState&);
48 void unregisterFormElementWithState(HTMLFormControlElementWithState&);
49
50 unsigned formElementsCharacterCount() const;
51
52 Vector<String> formElementsState() const;
53 void setStateForNewFormElements(const Vector<String>&);
54
55 void willDeleteForm(HTMLFormElement&);
56 void restoreControlStateFor(HTMLFormControlElementWithState&);
57 void restoreControlStateIn(HTMLFormElement&);
58 bool hasFormStateToRestore() const;
59
60 WEBCORE_EXPORT static Vector<String> referencedFilePaths(const Vector<String>& stateVector);
61
62private:
63 typedef ListHashSet<RefPtr<HTMLFormControlElementWithState>> FormElementListHashSet;
64 typedef HashMap<RefPtr<AtomicStringImpl>, std::unique_ptr<SavedFormState>> SavedFormStateMap;
65
66 static std::unique_ptr<SavedFormStateMap> createSavedFormStateMap(const FormElementListHashSet&);
67 FormControlState takeStateForFormElement(const HTMLFormControlElementWithState&);
68 static void formStatesFromStateVector(const Vector<String>&, SavedFormStateMap&);
69
70 RadioButtonGroups m_radioButtonGroups;
71 FormElementListHashSet m_formElementsWithState;
72 SavedFormStateMap m_savedFormStateMap;
73 std::unique_ptr<FormKeyGenerator> m_formKeyGenerator;
74};
75
76} // namespace WebCore
77