1/* 2 * Copyright (C) 2009 Google 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 are 6 * met: 7 * 8 * * Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * * Redistributions in binary form must reproduce the above 11 * copyright notice, this list of conditions and the following disclaimer 12 * in the documentation and/or other materials provided with the 13 * distribution. 14 * * Neither the name of Google Inc. nor the names of its 15 * contributors may be used to endorse or promote products derived from 16 * this software without specific prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29 */ 30 31#include "config.h" 32#include "web/BackForwardClientImpl.h" 33 34#include "public/web/WebViewClient.h" 35#include "web/WebViewImpl.h" 36 37namespace blink { 38 39BackForwardClientImpl::BackForwardClientImpl(WebViewImpl* webView) 40 : m_webView(webView) 41{ 42} 43 44BackForwardClientImpl::~BackForwardClientImpl() 45{ 46} 47 48int BackForwardClientImpl::backListCount() 49{ 50 if (!m_webView->client()) 51 return 0; 52 53 return m_webView->client()->historyBackListCount(); 54} 55 56int BackForwardClientImpl::forwardListCount() 57{ 58 if (!m_webView->client()) 59 return 0; 60 61 return m_webView->client()->historyForwardListCount(); 62} 63 64int BackForwardClientImpl::backForwardListCount() 65{ 66 if (!m_webView->client()) 67 return 0; 68 return backListCount() + 1 + forwardListCount(); 69} 70 71 72} // namespace blink 73