| /* |
| * 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 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 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. |
| */ |
| |
| #pragma once |
| |
| #include <WebCore/BackForwardClient.h> |
| #include <wtf/HashSet.h> |
| #include <wtf/Vector.h> |
| |
| typedef Vector<Ref<WebCore::HistoryItem>> HistoryItemVector; |
| typedef HashSet<RefPtr<WebCore::HistoryItem>> HistoryItemHashSet; |
| |
| class BackForwardList : public WebCore::BackForwardClient { |
| public: |
| static Ref<BackForwardList> create() { return adoptRef(*new BackForwardList()); } |
| virtual ~BackForwardList(); |
| |
| void addItem(Ref<WebCore::HistoryItem>&&) override; |
| void goBack(); |
| void goForward(); |
| void goToItem(WebCore::HistoryItem&) override; |
| |
| RefPtr<WebCore::HistoryItem> backItem(); |
| RefPtr<WebCore::HistoryItem> currentItem(); |
| RefPtr<WebCore::HistoryItem> forwardItem(); |
| RefPtr<WebCore::HistoryItem> itemAtIndex(int) override; |
| |
| void backListWithLimit(int, HistoryItemVector&); |
| void forwardListWithLimit(int, HistoryItemVector&); |
| |
| int capacity(); |
| void setCapacity(int); |
| bool enabled(); |
| void setEnabled(bool); |
| unsigned backListCount() const final; |
| unsigned forwardListCount() const final; |
| bool containsItem(WebCore::HistoryItem*); |
| |
| void close() override; |
| bool closed(); |
| |
| void removeItem(WebCore::HistoryItem*); |
| HistoryItemVector& entries(); |
| |
| private: |
| explicit BackForwardList(); |
| |
| HistoryItemVector m_entries; |
| HistoryItemHashSet m_entryHash; |
| unsigned m_current; |
| unsigned m_capacity; |
| bool m_closed; |
| bool m_enabled; |
| }; |