/*
 * Copyright (C) 2006-2017 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. 
 * 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;
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 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#pragma once

#include "FrameLoaderTypes.h"
#include "ResourceRequest.h"
#include "UserGestureIndicator.h"
#include <wtf/Forward.h>

namespace WebCore {

class Document;
class Event;

class NavigationAction {
public:
    NavigationAction();
    WEBCORE_EXPORT NavigationAction(Document&, const ResourceRequest&, InitiatedByMainFrame, NavigationType = NavigationType::Other, ShouldOpenExternalURLsPolicy = ShouldOpenExternalURLsPolicy::ShouldNotAllow, Event* = nullptr, const AtomicString& downloadAttribute = nullAtom());
    NavigationAction(Document&, const ResourceRequest&, InitiatedByMainFrame, FrameLoadType, bool isFormSubmission, Event* = nullptr, ShouldOpenExternalURLsPolicy = ShouldOpenExternalURLsPolicy::ShouldNotAllow, const AtomicString& downloadAttribute = nullAtom());

    WEBCORE_EXPORT ~NavigationAction();

    WEBCORE_EXPORT NavigationAction(const NavigationAction&);
    NavigationAction& operator=(const NavigationAction&);

    NavigationAction(NavigationAction&&);
    NavigationAction& operator=(NavigationAction&&);

    NavigationAction copyWithShouldOpenExternalURLsPolicy(ShouldOpenExternalURLsPolicy) const;

    bool isEmpty() const { return !m_sourceDocument || m_resourceRequest.url().isEmpty(); }

    URL url() const { return m_resourceRequest.url(); }
    const ResourceRequest& resourceRequest() const { return m_resourceRequest; }

    NavigationType type() const { return m_type; }
    const Event* event() const { return m_event.get(); }

    const Document* sourceDocument() const { return m_sourceDocument.get(); }

    bool processingUserGesture() const { return m_userGestureToken ? m_userGestureToken->processingUserGesture() : false; }
    RefPtr<UserGestureToken> userGestureToken() const { return m_userGestureToken; }

    ShouldOpenExternalURLsPolicy shouldOpenExternalURLsPolicy() const { return m_shouldOpenExternalURLsPolicy; }
    InitiatedByMainFrame initiatedByMainFrame() const { return m_initiatedByMainFrame; }

    const AtomicString& downloadAttribute() const { return m_downloadAttribute; }

    bool treatAsSameOriginNavigation() const { return m_treatAsSameOriginNavigation; }

    void setIsCrossOriginWindowOpenNavigation(bool value) { m_isCrossOriginWindowOpenNavigation = value; }
    bool isCrossOriginWindowOpenNavigation() const { return m_isCrossOriginWindowOpenNavigation; }

    void setOpener(std::optional<std::pair<uint64_t, uint64_t>>&& opener) { m_opener = WTFMove(opener); }
    const std::optional<std::pair<uint64_t, uint64_t>>& opener() const { return m_opener; }

private:
    RefPtr<Document> m_sourceDocument;
    ResourceRequest m_resourceRequest;
    NavigationType m_type;
    ShouldOpenExternalURLsPolicy m_shouldOpenExternalURLsPolicy;
    InitiatedByMainFrame m_initiatedByMainFrame;
    RefPtr<Event> m_event;
    RefPtr<UserGestureToken> m_userGestureToken { UserGestureIndicator::currentUserGesture() };
    AtomicString m_downloadAttribute;
    bool m_treatAsSameOriginNavigation;
    bool m_isCrossOriginWindowOpenNavigation { false };
    std::optional<std::pair<uint64_t /* pageID */, uint64_t /* frameID */>> m_opener;
};

} // namespace WebCore