125 lines
4.7 KiB
C++
125 lines
4.7 KiB
C++
/*
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* Copyright (C) 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
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* Copyright (C) 2008, 2009 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
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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 Apple Inc. ("Apple") 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 APPLE AND ITS 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 "FrameLoader.h"
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namespace WebCore {
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class Frame;
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class HistoryItem;
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class SerializedScriptValue;
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enum class ShouldTreatAsContinuingLoad : bool;
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struct StringWithDirection;
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class FrameLoader::HistoryController {
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WTF_MAKE_NONCOPYABLE(HistoryController);
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WTF_MAKE_FAST_ALLOCATED;
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public:
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enum HistoryUpdateType { UpdateAll, UpdateAllExceptBackForwardList };
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explicit HistoryController(Frame&);
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~HistoryController();
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WEBCORE_EXPORT void saveScrollPositionAndViewStateToItem(HistoryItem*);
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void clearScrollPositionAndViewState();
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WEBCORE_EXPORT void restoreScrollPositionAndViewState();
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void updateBackForwardListForFragmentScroll();
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void saveDocumentState();
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WEBCORE_EXPORT void saveDocumentAndScrollState();
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void restoreDocumentState();
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void invalidateCurrentItemCachedPage();
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void updateForBackForwardNavigation();
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void updateForReload();
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void updateForStandardLoad(HistoryUpdateType updateType = UpdateAll);
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void updateForRedirectWithLockedBackForwardList();
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void updateForClientRedirect();
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void updateForCommit();
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void updateForSameDocumentNavigation();
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void updateForFrameLoadCompleted();
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HistoryItem* currentItem() const { return m_currentItem.get(); }
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WEBCORE_EXPORT void setCurrentItem(HistoryItem&);
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void setCurrentItemTitle(const StringWithDirection&);
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bool currentItemShouldBeReplaced() const;
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WEBCORE_EXPORT void replaceCurrentItem(HistoryItem*);
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HistoryItem* previousItem() const { return m_previousItem.get(); }
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void clearPreviousItem();
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HistoryItem* provisionalItem() const { return m_provisionalItem.get(); }
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void setProvisionalItem(HistoryItem*);
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void pushState(RefPtr<SerializedScriptValue>&&, const String& title, const String& url);
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void replaceState(RefPtr<SerializedScriptValue>&&, const String& title, const String& url);
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void setDefersLoading(bool);
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private:
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friend class Page;
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bool shouldStopLoadingForHistoryItem(HistoryItem&) const;
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void goToItem(HistoryItem&, FrameLoadType, ShouldTreatAsContinuingLoad);
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void initializeItem(HistoryItem&);
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Ref<HistoryItem> createItem();
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Ref<HistoryItem> createItemTree(Frame& targetFrame, bool clipAtTarget);
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void recursiveSetProvisionalItem(HistoryItem&, HistoryItem*);
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void recursiveGoToItem(HistoryItem&, HistoryItem*, FrameLoadType, ShouldTreatAsContinuingLoad);
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bool isReplaceLoadTypeWithProvisionalItem(FrameLoadType);
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bool isReloadTypeWithProvisionalItem(FrameLoadType);
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void recursiveUpdateForCommit();
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void recursiveUpdateForSameDocumentNavigation();
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bool itemsAreClones(HistoryItem&, HistoryItem*) const;
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bool currentFramesMatchItem(HistoryItem&) const;
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void updateBackForwardListClippedAtTarget(bool doClip);
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void updateCurrentItem();
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Frame& m_frame;
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RefPtr<HistoryItem> m_currentItem;
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RefPtr<HistoryItem> m_previousItem;
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RefPtr<HistoryItem> m_provisionalItem;
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bool m_frameLoadComplete;
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bool m_defersLoading;
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RefPtr<HistoryItem> m_deferredItem;
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FrameLoadType m_deferredFrameLoadType;
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};
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} // namespace WebCore
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