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31 #ifndef InspectorHistory_h
32 #define InspectorHistory_h
34 #include "platform/heap/Handle.h"
35 #include "wtf/RefPtr.h"
36 #include "wtf/Vector.h"
37 #include "wtf/text/WTFString.h"
43 class InspectorHistory FINAL : public NoBaseWillBeGarbageCollected<InspectorHistory> {
44 WTF_MAKE_NONCOPYABLE(InspectorHistory);
45 WTF_MAKE_FAST_ALLOCATED_WILL_BE_REMOVED;
47 class Action : public RefCountedWillBeGarbageCollectedFinalized<Action> {
48 WTF_MAKE_FAST_ALLOCATED_WILL_BE_REMOVED;
50 explicit Action(const String& name);
52 virtual void trace(Visitor*);
53 virtual String toString();
55 virtual String mergeId();
56 virtual void merge(PassRefPtrWillBeRawPtr<Action>);
58 virtual bool perform(ExceptionState&) = 0;
60 virtual bool undo(ExceptionState&) = 0;
61 virtual bool redo(ExceptionState&) = 0;
63 virtual bool isUndoableStateMark();
71 bool perform(PassRefPtrWillBeRawPtr<Action>, ExceptionState&);
72 void markUndoableState();
74 bool undo(ExceptionState&);
75 bool redo(ExceptionState&);
79 WillBeHeapVector<RefPtrWillBeMember<Action> > m_history;
80 size_t m_afterLastActionIndex;
86 #endif // !defined(InspectorHistory_h)