/*
 * Copyright (C) 2011, 2012, 2013 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. 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 INC. 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.
 */

#ifndef WebNotificationManager_h
#define WebNotificationManager_h

#include "MessageReceiver.h"
#include "WebProcessSupplement.h"
#include <WebCore/NotificationClient.h>
#include <wtf/HashMap.h>
#include <wtf/Noncopyable.h>
#include <wtf/RefPtr.h>
#include <wtf/Vector.h>
#include <wtf/text/StringHash.h>

namespace WebCore {
class Notification;
class SecurityOrigin;
}

namespace WebKit {

class WebPage;
class WebProcess;

class WebNotificationManager : public WebProcessSupplement, public IPC::MessageReceiver {
    WTF_MAKE_NONCOPYABLE(WebNotificationManager);
public:
    explicit WebNotificationManager(WebProcess*);
    ~WebNotificationManager();

    static const char* supplementName();
    
    bool show(WebCore::Notification*, WebPage*);
    void cancel(WebCore::Notification*, WebPage*);
    void clearNotifications(WebCore::ScriptExecutionContext*, WebPage*);
    // This callback comes from WebCore, not messaged from the UI process.
    void didDestroyNotification(WebCore::Notification*, WebPage*);

    void didUpdateNotificationDecision(const String& originString, bool allowed);

    // Looks in local cache for permission. If not found, returns DefaultDenied.
    WebCore::NotificationClient::Permission policyForOrigin(WebCore::SecurityOrigin*) const;

    void removeAllPermissionsForTesting();
    uint64_t notificationIDForTesting(WebCore::Notification*);

private:
    // WebProcessSupplement
    virtual void initialize(const WebProcessCreationParameters&) OVERRIDE;

    // IPC::MessageReceiver
    // Implemented in generated WebNotificationManagerMessageReceiver.cpp
    virtual void didReceiveMessage(IPC::Connection*, IPC::MessageDecoder&) OVERRIDE;
    
    void didShowNotification(uint64_t notificationID);
    void didClickNotification(uint64_t notificationID);
    void didCloseNotifications(const Vector<uint64_t>& notificationIDs);
    void didRemoveNotificationDecisions(const Vector<String>& originStrings);
    
#if ENABLE(NOTIFICATIONS) || ENABLE(LEGACY_NOTIFICATIONS)
    void removeNotificationFromContextMap(uint64_t notificationID, WebCore::Notification*);
#endif

    WebProcess* m_process;

#if ENABLE(NOTIFICATIONS) || ENABLE(LEGACY_NOTIFICATIONS)
    typedef HashMap<RefPtr<WebCore::Notification>, uint64_t> NotificationMap;
    NotificationMap m_notificationMap;
    
    typedef HashMap<uint64_t, RefPtr<WebCore::Notification>> NotificationIDMap;
    NotificationIDMap m_notificationIDMap;
    
    typedef HashMap<RefPtr<WebCore::ScriptExecutionContext>, Vector<uint64_t>> NotificationContextMap;
    NotificationContextMap m_notificationContextMap;
    
    HashMap<String, bool> m_permissionsMap;
#endif
};

} // namespace WebKit

#endif