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 * 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. Neither the name of Apple Computer, Inc. ("Apple") nor the names of 14 * its contributors may be used to endorse or promote products derived 15 * from this software without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY 18 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 19 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 20 * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY 21 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 22 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 23 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND 24 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 */ 28 29#ifndef PageURLRecord_h 30#define PageURLRecord_h 31 32#include <wtf/Noncopyable.h> 33#include <wtf/RefPtr.h> 34#include <wtf/text/WTFString.h> 35 36namespace WebCore { 37 38class IconRecord; 39 40class PageURLSnapshot { 41public: 42 PageURLSnapshot() { } 43 44 PageURLSnapshot(const String& pageURL, const String& iconURL) 45 : m_pageURL(pageURL) 46 , m_iconURL(iconURL) 47 { } 48 49 const String& pageURL() const { return m_pageURL; } 50 const String& iconURL() const { return m_iconURL; } 51 52private: 53 String m_pageURL; 54 String m_iconURL; 55}; 56 57class PageURLRecord { 58 WTF_MAKE_NONCOPYABLE(PageURLRecord); WTF_MAKE_FAST_ALLOCATED; 59public: 60 PageURLRecord(const String& pageURL); 61 ~PageURLRecord(); 62 63 inline String url() const { return m_pageURL; } 64 65 void setIconRecord(PassRefPtr<IconRecord>); 66 IconRecord* iconRecord() { return m_iconRecord.get(); } 67 68 PageURLSnapshot snapshot(bool forDeletion = false) const; 69 70 // Returns false if the page wasn't retained beforehand, true if the retain count was already 1 or higher 71 bool retain(int count) 72 { 73 bool wasRetained = m_retainCount > 0; 74 m_retainCount += count; 75 return wasRetained; 76 } 77 78 // Returns true if the page is still retained after the call. False if the retain count just dropped to 0 79 bool release(int count) 80 { 81 ASSERT(m_retainCount >= count); 82 m_retainCount -= count; 83 return m_retainCount > 0; 84 } 85 86 inline int retainCount() const { return m_retainCount; } 87private: 88 String m_pageURL; 89 RefPtr<IconRecord> m_iconRecord; 90 int m_retainCount; 91}; 92 93} 94 95#endif // PageURLRecord_h 96