1/*
2 * Copyright (C) 2010 Apple Inc. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 * 1. Redistributions of source code must retain the above copyright
8 *    notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 *    notice, this list of conditions and the following disclaimer in the
11 *    documentation and/or other materials provided with the distribution.
12 *
13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
14 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
15 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
17 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
18 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
19 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
20 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
21 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
22 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
23 * THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26#include "config.h"
27#include "BackForwardController.h"
28
29#include "BackForwardListImpl.h"
30#include "HistoryItem.h"
31#include "Page.h"
32
33namespace WebCore {
34
35BackForwardController::BackForwardController(Page* page, PassRefPtr<BackForwardList> client)
36    : m_page(page)
37    , m_client(client)
38{
39    if (!m_client)
40        m_client = BackForwardListImpl::create(page);
41}
42
43BackForwardController::~BackForwardController()
44{
45}
46
47PassOwnPtr<BackForwardController> BackForwardController::create(Page* page, PassRefPtr<BackForwardList> client)
48{
49    return adoptPtr(new BackForwardController(page, client));
50}
51
52bool BackForwardController::canGoBackOrForward(int distance) const
53{
54    return m_page->canGoBackOrForward(distance);
55}
56
57void BackForwardController::goBackOrForward(int distance)
58{
59    m_page->goBackOrForward(distance);
60}
61
62bool BackForwardController::goBack()
63{
64    return m_page->goBack();
65}
66
67bool BackForwardController::goForward()
68{
69    return m_page->goForward();
70}
71
72void BackForwardController::addItem(PassRefPtr<HistoryItem> item)
73{
74    m_client->addItem(item);
75}
76
77void BackForwardController::setCurrentItem(HistoryItem* item)
78{
79    m_client->goToItem(item);
80}
81
82int BackForwardController::count() const
83{
84    return m_page->getHistoryLength();
85}
86
87int BackForwardController::backCount() const
88{
89    return m_client->backListCount();
90}
91
92int BackForwardController::forwardCount() const
93{
94    return m_client->forwardListCount();
95}
96
97HistoryItem* BackForwardController::itemAtIndex(int i)
98{
99    return m_client->itemAtIndex(i);
100}
101
102bool BackForwardController::isActive()
103{
104    return m_client->isActive();
105}
106
107void BackForwardController::close()
108{
109    m_client->close();
110}
111
112} // namespace WebCore
113