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 #ifndef BackForwardListClientImpl_h 32 #define BackForwardListClientImpl_h 33 34 #include "BackForwardList.h" 35 36 namespace WebKit { 37 class WebViewImpl; 38 39 extern const char backForwardNavigationScheme[]; 40 41 class BackForwardListClientImpl : public WebCore::BackForwardListClient { 42 public: 43 BackForwardListClientImpl(WebViewImpl* webview); 44 ~BackForwardListClientImpl(); 45 46 void setCurrentHistoryItem(WebCore::HistoryItem* item); 47 WebCore::HistoryItem* previousHistoryItem() const; 48 49 private: 50 // WebCore::BackForwardListClient methods: 51 virtual void addItem(PassRefPtr<WebCore::HistoryItem>); 52 virtual void goToItem(WebCore::HistoryItem*); 53 virtual WebCore::HistoryItem* currentItem(); 54 virtual WebCore::HistoryItem* itemAtIndex(int index); 55 virtual int backListCount(); 56 virtual int forwardListCount(); 57 virtual void close(); 58 59 WebViewImpl* m_webView; 60 61 RefPtr<WebCore::HistoryItem> m_previousItem; 62 RefPtr<WebCore::HistoryItem> m_currentItem; 63 64 // The last history item that was accessed via itemAtIndex(). We keep track 65 // of this until goToItem() is called, so we can track the navigation. 66 RefPtr<WebCore::HistoryItem> m_pendingHistoryItem; 67 }; 68 69 } // namespace WebKit 70 71 #endif 72
