67 lines
2.7 KiB
C++
67 lines
2.7 KiB
C++
/*
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* Copyright (C) 2010 Google Inc. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of Google, Inc. nor the names of
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* its contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#pragma once
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#include <wtf/Noncopyable.h>
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namespace WebCore {
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// Encapsulates a state machine for FrameLoader. Note that this is different from FrameState,
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// which stores the state of the current load that FrameLoader is executing.
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class FrameLoaderStateMachine {
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WTF_MAKE_NONCOPYABLE(FrameLoaderStateMachine);
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public:
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FrameLoaderStateMachine();
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// Once a load has been committed, the state may
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// alternate between CommittedFirstRealLoad and FirstLayoutDone.
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// Otherwise, the states only go down the list.
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enum State {
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CreatingInitialEmptyDocument,
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DisplayingInitialEmptyDocument,
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DisplayingInitialEmptyDocumentPostCommit,
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CommittedFirstRealLoad,
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FirstLayoutDone
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};
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WEBCORE_EXPORT bool committingFirstRealLoad() const;
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bool committedFirstRealDocumentLoad() const;
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WEBCORE_EXPORT bool creatingInitialEmptyDocument() const;
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WEBCORE_EXPORT bool isDisplayingInitialEmptyDocument() const;
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WEBCORE_EXPORT bool firstLayoutDone() const;
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void advanceTo(State);
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State stateForDebugging() const { return m_state; }
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private:
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State m_state;
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};
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} // namespace WebCore
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