third_party/WebKit/public/web/WebMIDIPermissionRequest.h

   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 blink {
  38
  39 class MIDIAccessInitializer;
  40 class WebSecurityOrigin;
  41
  42 // WebMIDIPermissionRequest encapsulates a WebCore MIDIAccessInitializer
  43 // object and represents a request from WebCore for permissions.
  44 // The request must not outlive the underlying initializer object.
  45 // In other words, the request must be canceled when the underlying
  46 // initializer dies while requesting,
  47 class WebMIDIPermissionRequest {
  48 public:
  49     BLINK_EXPORT WebMIDIPermissionRequest(const WebMIDIPermissionRequest& other)
  50     {
  51         assign(other);
  52     }
  53
  54     ~WebMIDIPermissionRequest()
  55     {
  56         reset();
  57     }
  58
  59     BLINK_EXPORT WebSecurityOrigin securityOrigin() const;
  60     BLINK_EXPORT void setIsAllowed(bool);
  61
  62     BLINK_EXPORT bool equals(const WebMIDIPermissionRequest&) const;
  63
  64 #if BLINK_IMPLEMENTATION
  65     explicit WebMIDIPermissionRequest(MIDIAccessInitializer*);
  66
  67     MIDIAccessInitializer* midiAccessInitializer() const { return m_private.get(); }
  68 #endif
  69
  70 private:
  71     BLINK_EXPORT void reset();
  72     BLINK_EXPORT void assign(const WebMIDIPermissionRequest&);
  73
  74     WebPrivatePtr<MIDIAccessInitializer> m_private;
  75 };
  76
  77 inline bool operator==(const WebMIDIPermissionRequest& a, const WebMIDIPermissionRequest& b)
  78 {
  79     return a.equals(b);
  80 }
  81
  82 inline bool operator!=(const WebMIDIPermissionRequest& a, const WebMIDIPermissionRequest& b)
  83 {
  84     return !(a == b);
  85 }
  86
  87 } // namespace blink
  88
  89 #endif // WebMIDIPermissionRequest_h