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 33 namespace WebCore { 34 35 BackForwardController::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 43 BackForwardController::~BackForwardController() 44 { 45 } 46 47 bool BackForwardController::canGoBackOrForward(int distance) const 48 { 49 return m_page->canGoBackOrForward(distance); 50 } 51 52 void BackForwardController::goBackOrForward(int distance) 53 { 54 m_page->goBackOrForward(distance); 55 } 56 57 bool BackForwardController::goBack() 58 { 59 return m_page->goBack(); 60 } 61 62 bool BackForwardController::goForward() 63 { 64 return m_page->goForward(); 65 } 66 67 void BackForwardController::addItem(PassRefPtr<HistoryItem> item) 68 { 69 m_client->addItem(item); 70 } 71 72 void BackForwardController::setCurrentItem(HistoryItem* item) 73 { 74 m_client->goToItem(item); 75 } 76 77 int BackForwardController::count() const 78 { 79 return m_page->getHistoryLength(); 80 } 81 82 int BackForwardController::backCount() const 83 { 84 return m_client->backListCount(); 85 } 86 87 int BackForwardController::forwardCount() const 88 { 89 return m_client->forwardListCount(); 90 } 91 92 HistoryItem* BackForwardController::itemAtIndex(int i) 93 { 94 return m_client->itemAtIndex(i); 95 } 96 97 bool BackForwardController::isActive() 98 { 99 return m_client->isActive(); 100 } 101 102 void BackForwardController::close() 103 { 104 m_client->close(); 105 } 106 107 } // namespace WebCore 108