1 /* 2 * Copyright (C) 2007 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 COMPUTER, INC. ``AS IS'' AND ANY 14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR 17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY 21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 24 */ 25 26 #ifndef History_h 27 #define History_h 28 29 #include "KURL.h" 30 #include <wtf/Forward.h> 31 #include <wtf/PassRefPtr.h> 32 #include <wtf/RefCounted.h> 33 34 namespace WebCore { 35 36 class Frame; 37 class ScriptExecutionContext; 38 class SerializedScriptValue; 39 typedef int ExceptionCode; 40 41 class History : public RefCounted<History> { 42 public: create(Frame * frame)43 static PassRefPtr<History> create(Frame* frame) { return adoptRef(new History(frame)); } 44 45 Frame* frame() const; 46 void disconnectFrame(); 47 48 unsigned length() const; 49 void back(); 50 void forward(); 51 void go(int distance); 52 53 void back(ScriptExecutionContext*); 54 void forward(ScriptExecutionContext*); 55 void go(ScriptExecutionContext*, int distance); 56 57 enum StateObjectType { 58 StateObjectPush, 59 StateObjectReplace 60 }; 61 void stateObjectAdded(PassRefPtr<SerializedScriptValue>, const String& title, const String& url, StateObjectType, ExceptionCode&); 62 63 private: 64 History(Frame*); 65 66 KURL urlForState(const String& url); 67 68 Frame* m_frame; 69 }; 70 71 } // namespace WebCore 72 73 #endif // History_h 74