/* * 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/MIDIInput.h" #include "heap/Handle.h" #include "modules/webmidi/MIDIAccess.h" #include "modules/webmidi/MIDIMessageEvent.h" namespace WebCore { PassRefPtrWillBeRawPtr<MIDIInput> MIDIInput::create(MIDIAccess* access, const String& id, const String& manufacturer, const String& name, const String& version) { ASSERT(access); RefPtrWillBeRawPtr<MIDIInput> input = adoptRefWillBeRefCountedGarbageCollected(new MIDIInput(access, id, manufacturer, name, version)); return input.release(); } MIDIInput::MIDIInput(MIDIAccess* access, const String& id, const String& manufacturer, const String& name, const String& version) : MIDIPort(access, id, manufacturer, name, MIDIPortTypeInput, version) { ScriptWrappable::init(this); } void MIDIInput::didReceiveMIDIData(unsigned portIndex, const unsigned char* data, size_t length, double timeStamp) { ASSERT(isMainThread()); if (!length) return; // Drop sysex message here when the client does not request it. Note that this is not a security check but an // automatic filtering for clients that do not want sysex message. Also note that sysex message will never be sent // unless the current process has an explicit permission to handle sysex message. if (data[0] == 0xf0 && !midiAccess()->sysexEnabled()) return; RefPtr<Uint8Array> array = Uint8Array::create(data, length); dispatchEvent(MIDIMessageEvent::create(timeStamp, array)); } void MIDIInput::trace(Visitor* visitor) { MIDIPort::trace(visitor); } } // namespace WebCore