| /* |
| * 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. |
| */ |
| |
| #ifndef MIDIAccess_h |
| #define MIDIAccess_h |
| |
| #include "bindings/core/v8/ActiveScriptWrappable.h" |
| #include "bindings/core/v8/ScriptPromise.h" |
| #include "core/dom/ActiveDOMObject.h" |
| #include "modules/EventTargetModules.h" |
| #include "modules/webmidi/MIDIAccessInitializer.h" |
| #include "modules/webmidi/MIDIAccessor.h" |
| #include "modules/webmidi/MIDIAccessorClient.h" |
| #include "platform/heap/Handle.h" |
| #include "wtf/Vector.h" |
| #include <memory> |
| |
| namespace blink { |
| |
| class ExecutionContext; |
| class MIDIInput; |
| class MIDIInputMap; |
| class MIDIOutput; |
| class MIDIOutputMap; |
| |
| class MIDIAccess final : public EventTargetWithInlineData, public ActiveScriptWrappable, public ActiveDOMObject, public MIDIAccessorClient { |
| DEFINE_WRAPPERTYPEINFO(); |
| USING_GARBAGE_COLLECTED_MIXIN(MIDIAccess); |
| USING_PRE_FINALIZER(MIDIAccess, dispose); |
| public: |
| static MIDIAccess* create(std::unique_ptr<MIDIAccessor> accessor, bool sysexEnabled, const Vector<MIDIAccessInitializer::PortDescriptor>& ports, ExecutionContext* executionContext) |
| { |
| MIDIAccess* access = new MIDIAccess(std::move(accessor), sysexEnabled, ports, executionContext); |
| access->suspendIfNeeded(); |
| return access; |
| } |
| ~MIDIAccess() override; |
| |
| MIDIInputMap* inputs() const; |
| MIDIOutputMap* outputs() const; |
| |
| EventListener* onstatechange(); |
| void setOnstatechange(EventListener*); |
| |
| bool sysexEnabled() const { return m_sysexEnabled; } |
| |
| // EventTarget |
| const AtomicString& interfaceName() const override { return EventTargetNames::MIDIAccess; } |
| ExecutionContext* getExecutionContext() const override { return ActiveDOMObject::getExecutionContext(); } |
| |
| // ScriptWrappable |
| bool hasPendingActivity() const final; |
| |
| // ActiveDOMObject |
| void stop() override; |
| |
| // MIDIAccessorClient |
| void didAddInputPort(const String& id, const String& manufacturer, const String& name, const String& version, MIDIAccessor::MIDIPortState) override; |
| void didAddOutputPort(const String& id, const String& manufacturer, const String& name, const String& version, MIDIAccessor::MIDIPortState) override; |
| void didSetInputPortState(unsigned portIndex, MIDIAccessor::MIDIPortState) override; |
| void didSetOutputPortState(unsigned portIndex, MIDIAccessor::MIDIPortState) override; |
| void didStartSession(bool success, const String& error, const String& message) override |
| { |
| // This method is for MIDIAccess initialization: MIDIAccessInitializer |
| // has the implementation. |
| NOTREACHED(); |
| } |
| void didReceiveMIDIData(unsigned portIndex, const unsigned char* data, size_t length, double timeStamp) override; |
| |
| // |timeStampInMilliseconds| is in the same time coordinate system as performance.now(). |
| void sendMIDIData(unsigned portIndex, const unsigned char* data, size_t length, double timeStampInMilliseconds); |
| |
| // Eager finalization needed to promptly release m_accessor. Otherwise |
| // its client back reference could end up being unsafely used during |
| // the lazy sweeping phase. |
| DECLARE_VIRTUAL_TRACE(); |
| |
| private: |
| MIDIAccess(std::unique_ptr<MIDIAccessor>, bool sysexEnabled, const Vector<MIDIAccessInitializer::PortDescriptor>&, ExecutionContext*); |
| void dispose(); |
| |
| std::unique_ptr<MIDIAccessor> m_accessor; |
| bool m_sysexEnabled; |
| bool m_hasPendingActivity; |
| HeapVector<Member<MIDIInput>> m_inputs; |
| HeapVector<Member<MIDIOutput>> m_outputs; |
| }; |
| |
| } // namespace blink |
| |
| #endif // MIDIAccess_h |