/* * Copyright (C) 2007 Apple Inc. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #ifndef History_h #define History_h #include "bindings/v8/ScriptWrappable.h" #include "bindings/v8/SerializedScriptValue.h" #include "core/loader/FrameLoaderTypes.h" #include "core/frame/DOMWindowProperty.h" #include "heap/Handle.h" #include "wtf/Forward.h" #include "wtf/PassRefPtr.h" #include "wtf/RefCounted.h" namespace WebCore { class LocalFrame; class KURL; class ExecutionContext; class ExceptionState; class History FINAL : public RefCountedWillBeGarbageCollectedFinalized<History>, public ScriptWrappable, public DOMWindowProperty { public: static PassRefPtrWillBeRawPtr<History> create(LocalFrame* frame) { return adoptRefWillBeNoop(new History(frame)); } unsigned length() const; SerializedScriptValue* state(); void back(ExecutionContext*); void forward(ExecutionContext*); void go(ExecutionContext*, int distance); bool stateChanged() const; bool isSameAsCurrentState(SerializedScriptValue*) const; void stateObjectAdded(PassRefPtr<SerializedScriptValue>, const String& title, const String& url, UpdateBackForwardListPolicy, ExceptionState&); void trace(Visitor*) { } private: explicit History(LocalFrame*); KURL urlForState(const String& url); SerializedScriptValue* stateInternal() const; RefPtr<SerializedScriptValue> m_lastStateObjectRequested; }; } // namespace WebCore #endif // History_h