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/*
* 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
* copyright notice, this list of conditions and the following disclaimer
* in the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Google Inc. nor the names of its
* 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
* OWNER OR 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.
*/
#include "config.h"
#include "modules/webmidi/MIDIOutput.h"
#include "bindings/v8/ExceptionState.h"
#include "core/dom/ExceptionCode.h"
#include "modules/webmidi/MIDIAccess.h"
namespace WebCore {
PassRefPtr<MIDIOutput> MIDIOutput::create(MIDIAccess* access, unsigned portIndex, ExecutionContext* context, const String& id, const String& manufacturer, const String& name, const String& version)
{
ASSERT(access);
RefPtr<MIDIOutput> output = adoptRef(new MIDIOutput(access, portIndex, context, id, manufacturer, name, version));
output->suspendIfNeeded();
return output.release();
}
MIDIOutput::MIDIOutput(MIDIAccess* access, unsigned portIndex, ExecutionContext* context, const String& id, const String& manufacturer, const String& name, const String& version)
: MIDIPort(context, id, manufacturer, name, MIDIPortTypeOutput, version)
, m_access(access)
, m_portIndex(portIndex)
{
ScriptWrappable::init(this);
}
MIDIOutput::~MIDIOutput()
{
}
void MIDIOutput::send(Uint8Array* array, double timestamp, ExceptionState& exceptionState)
{
if (!array)
return;
const unsigned char* data = array->data();
size_t length = array->length();
// Filter out System Exclusive messages if we're not allowed.
// FIXME: implement more extensive filtering.
if (length > 0 && data[0] >= 0xf0 && !m_access->sysExEnabled()) {
exceptionState.throwSecurityError("permission to send system exclusive messages is denied.");
return;
}
m_access->sendMIDIData(m_portIndex, data, length, timestamp);
}
void MIDIOutput::send(Vector<unsigned> unsignedData, double timestamp, ExceptionState& exceptionState)
{
RefPtr<Uint8Array> array = Uint8Array::create(unsignedData.size());
for (size_t i = 0; i < unsignedData.size(); ++i) {
if (unsignedData[i] > 0xff) {
exceptionState.throwUninformativeAndGenericDOMException(InvalidStateError);
return;
}
unsigned char value = unsignedData[i] & 0xff;
array->set(i, value);
}
send(array.get(), timestamp, exceptionState);
}
void MIDIOutput::send(Uint8Array* data, ExceptionState& exceptionState)
{
send(data, 0, exceptionState);
}
void MIDIOutput::send(Vector<unsigned> unsignedData, ExceptionState& exceptionState)
{
send(unsignedData, 0, exceptionState);
}
} // namespace WebCore
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