2 * Copyright (C) 2007 Apple Inc. All rights reserved.
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
7 * 1. Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
13 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR
17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29 #include "bindings/core/v8/ScriptWrappable.h"
30 #include "bindings/core/v8/SerializedScriptValue.h"
31 #include "core/loader/FrameLoaderTypes.h"
32 #include "core/frame/DOMWindowProperty.h"
33 #include "platform/heap/Handle.h"
34 #include "wtf/Forward.h"
35 #include "wtf/PassRefPtr.h"
36 #include "wtf/RefCounted.h"
42 class ExecutionContext;
45 class History FINAL : public RefCountedWillBeGarbageCollectedFinalized<History>, public ScriptWrappable, public DOMWindowProperty {
47 static PassRefPtrWillBeRawPtr<History> create(LocalFrame* frame)
49 return adoptRefWillBeNoop(new History(frame));
52 unsigned length() const;
53 SerializedScriptValue* state();
55 void back(ExecutionContext*);
56 void forward(ExecutionContext*);
57 void go(ExecutionContext*, int distance);
59 bool stateChanged() const;
60 bool isSameAsCurrentState(SerializedScriptValue*) const;
62 void stateObjectAdded(PassRefPtr<SerializedScriptValue>, const String& title, const String& url, FrameLoadType, ExceptionState&);
64 void trace(Visitor*) { }
67 explicit History(LocalFrame*);
69 KURL urlForState(const String& url);
71 SerializedScriptValue* stateInternal() const;
73 RefPtr<SerializedScriptValue> m_lastStateObjectRequested;