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/*
* Copyright (C) 2007, 2018 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 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 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.
*/
#pragma once
#include "Page.h"
#include "ResourceLoaderIdentifier.h"
#include "Timer.h"
#include <wtf/CheckedRef.h>
#include <wtf/Forward.h>
#include <wtf/HashMap.h>
#include <wtf/Noncopyable.h>
#include <wtf/UniqueRef.h>
#include <wtf/WeakPtr.h>
#include <wtf/WeakRef.h>
namespace WebCore {
class LocalFrame;
class ResourceResponse;
class ProgressTrackerClient;
struct ProgressItem;
class ProgressTracker final : public CanMakeCheckedPtr<ProgressTracker> {
WTF_MAKE_NONCOPYABLE(ProgressTracker);
WTF_MAKE_FAST_ALLOCATED_WITH_HEAP_IDENTIFIER(Loader);
WTF_OVERRIDE_DELETE_FOR_CHECKED_PTR(ProgressTracker);
public:
explicit ProgressTracker(Page&, UniqueRef<ProgressTrackerClient>&&);
~ProgressTracker();
ProgressTrackerClient& client() { return m_client.get(); }
double estimatedProgress() const { return m_progressValue; }
void progressStarted(LocalFrame&);
void progressCompleted(LocalFrame&);
void incrementProgress(ResourceLoaderIdentifier, const ResourceResponse&);
void incrementProgress(ResourceLoaderIdentifier, unsigned bytesReceived);
void completeProgress(ResourceLoaderIdentifier);
long long totalPageAndResourceBytesToLoad() const { return m_totalPageAndResourceBytesToLoad; }
long long totalBytesReceived() const { return m_totalBytesReceived; }
bool isMainLoadProgressing() const;
private:
void reset();
void finalProgressComplete();
void progressEstimateChanged(LocalFrame&);
void progressHeartbeatTimerFired();
Ref<Page> protectedPage() const;
WeakRef<Page> m_page;
UniqueRef<ProgressTrackerClient> m_client;
WeakPtr<LocalFrame> m_originatingProgressFrame;
HashMap<ResourceLoaderIdentifier, std::unique_ptr<ProgressItem>> m_progressItems;
Timer m_progressHeartbeatTimer;
long long m_totalPageAndResourceBytesToLoad { 0 };
long long m_totalBytesReceived { 0 };
long long m_totalBytesReceivedBeforePreviousHeartbeat { 0 };
double m_lastNotifiedProgressValue { 0 };
double m_progressValue { 0 };
MonotonicTime m_mainLoadCompletionTime;
MonotonicTime m_lastNotifiedProgressTime;
int m_numProgressTrackedFrames { 0 };
unsigned m_heartbeatsWithNoProgress { 0 };
bool m_finalProgressChangedSent { false };
bool m_isMainLoad { false };
};
} // namespace WebCore
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