| /* |
| * Copyright (C) 2006, 2010 Apple Inc. All rights reserved. |
| * Copyright (C) 2008 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/) |
| * Copyright (C) 2009 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: |
| * 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 BackForwardList_h |
| #define BackForwardList_h |
| |
| #include <wtf/Forward.h> |
| #include <wtf/RefCounted.h> |
| |
| namespace WebCore { |
| |
| class HistoryItem; |
| |
| // FIXME: Rename this class to BackForwardClient, and rename the |
| // getter in Page accordingly. |
| class BackForwardList : public RefCounted<BackForwardList> { |
| public: |
| virtual ~BackForwardList() |
| { |
| } |
| |
| virtual void addItem(PassRefPtr<HistoryItem>) = 0; |
| |
| virtual void goToItem(HistoryItem*) = 0; |
| |
| virtual HistoryItem* itemAtIndex(int) = 0; |
| virtual int backListCount() = 0; |
| virtual int forwardListCount() = 0; |
| |
| virtual bool isActive() = 0; |
| |
| virtual void close() = 0; |
| |
| #if ENABLE(WML) |
| // FIXME: Rename this to just "clear" and change it so it's not |
| // WML-specific. This is the same operation as clearBackForwardList |
| // in the layout test controller; it would be reasonable to have it |
| // here even though HTML DOM interfaces don't require it. |
| virtual void clearWMLPageHistory() = 0; |
| #endif |
| |
| // FIXME: Delete these once all callers are using BackForwardController |
| // instead of calling this directly. |
| HistoryItem* backItem() { return itemAtIndex(-1); } |
| HistoryItem* currentItem() { return itemAtIndex(0); } |
| HistoryItem* forwardItem() { return itemAtIndex(1); } |
| }; |
| |
| } // namespace WebCore |
| |
| #endif // BackForwardList_h |