| /* |
| * Copyright (C) 2012 Google 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: |
| * |
| * * Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * * 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. |
| * * Neither the name of Google Inc. nor the names of its |
| * contributors may be used to endorse or promote products derived from |
| * this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| * "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 THE COPYRIGHT |
| * OWNER 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 InspectorHistory_h |
| #define InspectorHistory_h |
| |
| #include "platform/heap/Handle.h" |
| #include "wtf/RefPtr.h" |
| #include "wtf/Vector.h" |
| #include "wtf/text/WTFString.h" |
| |
| namespace blink { |
| |
| class ExceptionState; |
| |
| class InspectorHistory final : public NoBaseWillBeGarbageCollected<InspectorHistory> { |
| WTF_MAKE_NONCOPYABLE(InspectorHistory); |
| WTF_MAKE_FAST_ALLOCATED_WILL_BE_REMOVED(InspectorHistory); |
| public: |
| class Action : public RefCountedWillBeGarbageCollectedFinalized<Action> { |
| WTF_MAKE_FAST_ALLOCATED_WILL_BE_REMOVED(Action); |
| public: |
| explicit Action(const String& name); |
| virtual ~Action(); |
| DECLARE_VIRTUAL_TRACE(); |
| virtual String toString(); |
| |
| virtual String mergeId(); |
| virtual void merge(PassRefPtrWillBeRawPtr<Action>); |
| |
| virtual bool perform(ExceptionState&) = 0; |
| |
| virtual bool undo(ExceptionState&) = 0; |
| virtual bool redo(ExceptionState&) = 0; |
| |
| virtual bool isNoop() { return false; } |
| |
| virtual bool isUndoableStateMark(); |
| private: |
| String m_name; |
| }; |
| |
| InspectorHistory(); |
| DECLARE_TRACE(); |
| |
| bool perform(PassRefPtrWillBeRawPtr<Action>, ExceptionState&); |
| void markUndoableState(); |
| |
| bool undo(ExceptionState&); |
| bool redo(ExceptionState&); |
| void reset(); |
| |
| private: |
| WillBeHeapVector<RefPtrWillBeMember<Action> > m_history; |
| size_t m_afterLastActionIndex; |
| }; |
| |
| |
| } // namespace blink |
| |
| #endif // !defined(InspectorHistory_h) |