Web MIDI: dispatch MIDIConnectionEvent

Source/modules/webmidi/MIDIPort.cpp

 /*
  * 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
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 14 matching lines @@
  * 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.
  */
 
 #include "config.h"
 #include "modules/webmidi/MIDIPort.h"
 
 #include "modules/webmidi/MIDIAccess.h"
+#include "modules/webmidi/MIDIConnectionEvent.h"
 
 namespace blink {
 
 MIDIPort::MIDIPort(MIDIAccess* access, const String& id, const String& manufacturer, const String& name, MIDIPortTypeCode type, const String& version, bool isActive)
     : m_id(id)
     , m_manufacturer(manufacturer)
     , m_name(name)
     , m_type(type)
     , m_version(version)
     , m_access(access)
     , m_isActive(isActive)
 {
     ASSERT(access);
     ASSERT(type == MIDIPortTypeInput || type == MIDIPortTypeOutput);
 }
 
 String MIDIPort::type() const
 {
     switch (m_type) {
     case MIDIPortTypeInput:
         return "input";
     case MIDIPortTypeOutput:
         return "output";
     default:
         ASSERT_NOT_REACHED();
     }
     return emptyString();
 }
 
+void MIDIPort::setActiveState(bool isActive)
+{
+    m_isActive = isActive;
+    dispatchEvent(MIDIConnectionEvent::create(this));
+}
+
 ExecutionContext* MIDIPort::executionContext() const
 {
     return m_access->executionContext();
 }
 
 DEFINE_TRACE(MIDIPort)
 {
     visitor->trace(m_access);
     RefCountedGarbageCollectedEventTargetWithInlineData<MIDIPort>::trace(visitor);
 }
 
 } // namespace blink