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 ProgressTracker_h 27 #define ProgressTracker_h 28 29 #include "wtf/FastAllocBase.h" 30 #include "wtf/Forward.h" 31 #include "wtf/HashMap.h" 32 #include "wtf/Noncopyable.h" 33 #include "wtf/OwnPtr.h" 34 #include "wtf/RefPtr.h" 35 36 namespace WebCore { 37 38 class LocalFrame; 39 class ResourceResponse; 40 struct ProgressItem; 41 42 // FIXME: This is only used on Android. Android is the only Chrome 43 // browser which shows a progress bar during loading. 44 // We should find a better way for Android to get this data and remove this! 45 class ProgressTracker { 46 WTF_MAKE_NONCOPYABLE(ProgressTracker); WTF_MAKE_FAST_ALLOCATED; 47 public: 48 ~ProgressTracker(); 49 50 static PassOwnPtr<ProgressTracker> create(LocalFrame*); 51 52 double estimatedProgress() const; 53 54 void progressStarted(); 55 void progressCompleted(); 56 57 void incrementProgress(unsigned long identifier, const ResourceResponse&); 58 void incrementProgress(unsigned long identifier, const char*, int); 59 void completeProgress(unsigned long identifier); 60 totalPageAndResourceBytesToLoad()61 long long totalPageAndResourceBytesToLoad() const { return m_totalPageAndResourceBytesToLoad; } totalBytesReceived()62 long long totalBytesReceived() const { return m_totalBytesReceived; } 63 64 private: 65 ProgressTracker(LocalFrame*); 66 67 void reset(); 68 69 LocalFrame* m_frame; 70 bool m_inProgress; 71 long long m_totalPageAndResourceBytesToLoad; 72 long long m_totalBytesReceived; 73 double m_lastNotifiedProgressValue; 74 double m_lastNotifiedProgressTime; 75 double m_progressNotificationInterval; 76 double m_progressNotificationTimeInterval; 77 bool m_finalProgressChangedSent; 78 double m_progressValue; 79 80 HashMap<unsigned long, OwnPtr<ProgressItem> > m_progressItems; 81 }; 82 83 } 84 85 #endif 86