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      1 /*
      2  * Copyright (C) 2013 Google Inc. All rights reserved.
      3  *
      4  * Redistribution and use in source and binary forms, with or without
      5  * modification, are permitted provided that the following conditions are
      6  * met:
      7  *
      8  *     * Redistributions of source code must retain the above copyright
      9  * notice, this list of conditions and the following disclaimer.
     10  *     * Redistributions in binary form must reproduce the above
     11  * copyright notice, this list of conditions and the following disclaimer
     12  * in the documentation and/or other materials provided with the
     13  * distribution.
     14  *     * Neither the name of Google Inc. nor the names of its
     15  * contributors may be used to endorse or promote products derived from
     16  * this software without specific prior written permission.
     17  *
     18  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
     19  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
     20  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
     21  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
     22  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
     23  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
     24  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     25  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     26  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     27  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     28  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     29  */
     30 
     31 #ifndef WebMIDIPermissionRequest_h
     32 #define WebMIDIPermissionRequest_h
     33 
     34 #include "../platform/WebCommon.h"
     35 #include "../platform/WebPrivatePtr.h"
     36 
     37 namespace WebCore {
     38 class MIDIAccess;
     39 }
     40 
     41 namespace WebKit {
     42 
     43 class WebSecurityOrigin;
     44 
     45 // WebMIDIPermissionRequest encapsulates a WebCore MIDIAccess object and represents
     46 // a request from WebCore for permissions.
     47 // The underlying MIDIAccess object is guaranteed to be valid until the invocation of
     48 // either WebMIDIPermissionRequest::setIsAllowed (request complete) or
     49 // WebMIDIClient::cancelPermissionRequest (request canceled).
     50 class WebMIDIPermissionRequest {
     51 public:
     52     WebMIDIPermissionRequest(const WebMIDIPermissionRequest& o) { assign(o); }
     53     ~WebMIDIPermissionRequest() { reset(); };
     54 
     55     WEBKIT_EXPORT WebSecurityOrigin securityOrigin() const;
     56     WEBKIT_EXPORT void setIsAllowed(bool);
     57 
     58     WEBKIT_EXPORT void reset();
     59     WEBKIT_EXPORT void assign(const WebMIDIPermissionRequest&);
     60     WEBKIT_EXPORT bool equals(const WebMIDIPermissionRequest&) const;
     61 
     62 #if WEBKIT_IMPLEMENTATION
     63     explicit WebMIDIPermissionRequest(const PassRefPtr<WebCore::MIDIAccess>&);
     64     explicit WebMIDIPermissionRequest(WebCore::MIDIAccess*);
     65 #endif
     66 
     67 private:
     68     WebPrivatePtr<WebCore::MIDIAccess> m_private;
     69 };
     70 
     71 inline bool operator==(const WebMIDIPermissionRequest& a, const WebMIDIPermissionRequest& b)
     72 {
     73     return a.equals(b);
     74 }
     75 
     76 inline bool operator!=(const WebMIDIPermissionRequest& a, const WebMIDIPermissionRequest& b)
     77 {
     78     return !(a == b);
     79 }
     80 
     81 } // namespace WebKit
     82 
     83 #endif // WebMIDIPermissionRequest_h
     84