third_party/WebKit/public/web/modules/webmidi/WebMIDIPermissionRequest.h

/*
 * Copyright (C) 2013 Google Inc. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are
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 *
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 * notice, this list of conditions and the following disclaimer.
 *     * 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.
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 * contributors may be used to endorse or promote products derived from
 * this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND 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 THE COPYRIGHT
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 */

#ifndef WebMIDIPermissionRequest_h
#define WebMIDIPermissionRequest_h

#include "public/platform/WebCommon.h"
#include "public/platform/WebPrivatePtr.h"

namespace blink {

class MIDIAccessInitializer;
class WebSecurityOrigin;

// WebMIDIPermissionRequest encapsulates a WebCore MIDIAccessInitializer
// object and represents a request from WebCore for permissions.
// The request must not outlive the underlying initializer object.
// In other words, the request must be canceled when the underlying
// initializer dies while requesting,
class WebMIDIPermissionRequest {
public:
    BLINK_EXPORT WebMIDIPermissionRequest(const WebMIDIPermissionRequest& other)
    {
        assign(other);
    }

    ~WebMIDIPermissionRequest()
    {
        reset();
    }

    BLINK_EXPORT WebSecurityOrigin getSecurityOrigin() const;
    BLINK_EXPORT void setIsAllowed(bool);

    BLINK_EXPORT bool equals(const WebMIDIPermissionRequest&) const;

#if BLINK_IMPLEMENTATION
    explicit WebMIDIPermissionRequest(MIDIAccessInitializer*);

    MIDIAccessInitializer* midiAccessInitializer() const { return m_private.get(); }
#endif

private:
    BLINK_EXPORT void reset();
    BLINK_EXPORT void assign(const WebMIDIPermissionRequest&);

    WebPrivatePtr<MIDIAccessInitializer> m_private;
};

inline bool operator==(const WebMIDIPermissionRequest& a, const WebMIDIPermissionRequest& b)
{
    return a.equals(b);
}

inline bool operator!=(const WebMIDIPermissionRequest& a, const WebMIDIPermissionRequest& b)
{
    return !(a == b);
}

} // namespace blink

#endif // WebMIDIPermissionRequest_h