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/*
* Copyright (C) 2006-2017 Apple Inc. All rights reserved.
* Copyright (C) 2008, 2009 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
* Copyright (C) 2009 Adam Barth. 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.
* 3. Neither the name of Apple Inc. ("Apple") nor the names of
* its contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "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 OR ITS 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 "FrameLoaderTypes.h"
#include "LoaderMalloc.h"
#include "Timer.h"
#include <wtf/CompletionHandler.h>
#include <wtf/Forward.h>
#include <wtf/WeakRef.h>
namespace WebCore {
class Document;
class FormSubmission;
class Frame;
class LocalFrame;
class ScheduledNavigation;
class SecurityOrigin;
enum class NewLoadInProgress : bool { No, Yes };
enum class ScheduleLocationChangeResult : uint8_t { Stopped, Completed, Started };
enum class ScheduleHistoryNavigationResult : bool { Completed, Aborted };
class NavigationScheduler final {
WTF_MAKE_FAST_ALLOCATED_WITH_HEAP_IDENTIFIER(Loader);
public:
explicit NavigationScheduler(Frame&);
~NavigationScheduler();
void ref() const;
void deref() const;
bool redirectScheduledDuringLoad();
bool locationChangePending();
void scheduleRedirect(Document& initiatingDocument, double delay, const URL&, IsMetaRefresh);
void scheduleLocationChange(Document& initiatingDocument, SecurityOrigin&, const URL&, const String& referrer, LockHistory = LockHistory::Yes, LockBackForwardList = LockBackForwardList::Yes, NavigationHistoryBehavior historyHandling = NavigationHistoryBehavior::Auto, CompletionHandler<void(ScheduleLocationChangeResult)>&& = [] (ScheduleLocationChangeResult) { });
void scheduleFormSubmission(Ref<FormSubmission>&&);
void scheduleRefresh(Document& initiatingDocument);
void scheduleHistoryNavigation(int steps);
void scheduleHistoryNavigationByKey(const String&key, CompletionHandler<void(ScheduleHistoryNavigationResult)>&&);
void schedulePageBlock(Document& originDocument);
void startTimer();
void cancel(NewLoadInProgress = NewLoadInProgress::No);
void clear();
bool hasQueuedNavigation() const;
private:
bool shouldScheduleNavigation() const;
bool shouldScheduleNavigation(const URL&) const;
void timerFired();
void schedule(std::unique_ptr<ScheduledNavigation>);
Ref<Frame> protectedFrame() const;
static LockBackForwardList mustLockBackForwardList(Frame& targetFrame);
WeakRef<Frame> m_frame;
Timer m_timer;
std::unique_ptr<ScheduledNavigation> m_redirect;
};
} // namespace WebCore
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