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/*
* Copyright (C) 2007 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef ProgressTracker_h
#define ProgressTracker_h
#include "Timer.h"
#include <wtf/Forward.h>
#include <wtf/HashMap.h>
#include <wtf/Noncopyable.h>
#include <wtf/OwnPtr.h>
#include <wtf/RefPtr.h>
namespace WebCore {
class Frame;
class ResourceResponse;
struct ProgressItem;
class ProgressTracker {
WTF_MAKE_NONCOPYABLE(ProgressTracker); WTF_MAKE_FAST_ALLOCATED;
public:
~ProgressTracker();
static PassOwnPtr<ProgressTracker> create();
static unsigned long createUniqueIdentifier();
double estimatedProgress() const;
void progressStarted(Frame*);
void progressCompleted(Frame*);
void incrementProgress(unsigned long identifier, const ResourceResponse&);
void incrementProgress(unsigned long identifier, const char*, int);
void completeProgress(unsigned long identifier);
long long totalPageAndResourceBytesToLoad() const { return m_totalPageAndResourceBytesToLoad; }
long long totalBytesReceived() const { return m_totalBytesReceived; }
bool isMainLoadProgressing() const;
private:
ProgressTracker();
void reset();
void finalProgressComplete();
void progressHeartbeatTimerFired(Timer<ProgressTracker>*);
static unsigned long s_uniqueIdentifier;
long long m_totalPageAndResourceBytesToLoad;
long long m_totalBytesReceived;
double m_lastNotifiedProgressValue;
double m_lastNotifiedProgressTime;
double m_progressNotificationInterval;
double m_progressNotificationTimeInterval;
bool m_finalProgressChangedSent;
double m_progressValue;
RefPtr<Frame> m_originatingProgressFrame;
int m_numProgressTrackedFrames;
HashMap<unsigned long, OwnPtr<ProgressItem> > m_progressItems;
Timer<ProgressTracker> m_progressHeartbeatTimer;
unsigned m_heartbeatsWithNoProgress;
long long m_totalBytesReceivedBeforePreviousHeartbeat;
};
}
#endif
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