| /* |
| * Copyright (C) 2005, 2006 Apple Computer, 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. |
| */ |
| |
| #include "config.h" |
| #include "BackForwardList.h" |
| |
| #include "HistoryItem.h" |
| #include "Logging.h" |
| |
| namespace WebCore { |
| |
| static const unsigned DefaultCapacity = 100; |
| static const unsigned NoCurrentItemIndex = UINT_MAX; |
| |
| BackForwardList::BackForwardList(Page* page) |
| : m_page(page) |
| , m_client(0) |
| , m_capacity(DefaultCapacity) |
| , m_closed(true) |
| , m_enabled(true) |
| { |
| } |
| |
| BackForwardList::~BackForwardList() |
| { |
| ASSERT(m_closed); |
| } |
| |
| void BackForwardList::addItem(PassRefPtr<HistoryItem> prpItem) |
| { |
| ASSERT(prpItem); |
| if (m_capacity == 0 || !m_enabled) |
| return; |
| |
| m_client->addItem(prpItem); |
| } |
| |
| void BackForwardList::goToItem(HistoryItem* item) |
| { |
| m_client->goToItem(item); |
| } |
| |
| HistoryItem* BackForwardList::backItem() |
| { |
| ASSERT_NOT_REACHED(); |
| return 0; |
| } |
| |
| HistoryItem* BackForwardList::forwardItem() |
| { |
| ASSERT_NOT_REACHED(); |
| return 0; |
| } |
| |
| HistoryItem* BackForwardList::currentItem() |
| { |
| return m_client->currentItem(); |
| } |
| |
| int BackForwardList::capacity() |
| { |
| return m_capacity; |
| } |
| |
| void BackForwardList::setCapacity(int size) |
| { |
| m_capacity = size; |
| } |
| |
| bool BackForwardList::enabled() |
| { |
| return m_enabled; |
| } |
| |
| void BackForwardList::setEnabled(bool enabled) |
| { |
| m_enabled = enabled; |
| if (!enabled) { |
| int capacity = m_capacity; |
| setCapacity(0); |
| setCapacity(capacity); |
| } |
| } |
| |
| int BackForwardList::backListCount() |
| { |
| return m_client->backListCount(); |
| } |
| |
| int BackForwardList::forwardListCount() |
| { |
| return m_client->forwardListCount(); |
| } |
| |
| HistoryItem* BackForwardList::itemAtIndex(int index) |
| { |
| return m_client->itemAtIndex(index); |
| } |
| |
| HistoryItemVector& BackForwardList::entries() |
| { |
| static HistoryItemVector noEntries; |
| return noEntries; |
| } |
| |
| void BackForwardList::close() |
| { |
| if (m_client) |
| m_client->close(); |
| m_page = 0; |
| m_closed = true; |
| } |
| |
| bool BackForwardList::closed() |
| { |
| return m_closed; |
| } |
| |
| } // namespace WebCore |