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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
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* * 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.
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* 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
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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#ifndef THIRD_PARTY_BLINK_RENDERER_MODULES_WEBMIDI_MIDI_PORT_H_
#define THIRD_PARTY_BLINK_RENDERER_MODULES_WEBMIDI_MIDI_PORT_H_
#include "media/midi/midi_service.mojom-blink.h"
#include "third_party/blink/renderer/bindings/core/v8/active_script_wrappable.h"
#include "third_party/blink/renderer/bindings/core/v8/script_promise.h"
#include "third_party/blink/renderer/bindings/core/v8/script_promise_resolver.h"
#include "third_party/blink/renderer/core/dom/context_lifecycle_observer.h"
#include "third_party/blink/renderer/modules/event_target_modules.h"
#include "third_party/blink/renderer/modules/webmidi/midi_accessor.h"
#include "third_party/blink/renderer/platform/bindings/trace_wrapper_member.h"
#include "third_party/blink/renderer/platform/heap/handle.h"
namespace blink {
class MIDIAccess;
class MIDIPort : public EventTargetWithInlineData,
public ActiveScriptWrappable<MIDIPort>,
public ContextLifecycleObserver {
DEFINE_WRAPPERTYPEINFO();
USING_GARBAGE_COLLECTED_MIXIN(MIDIPort);
public:
enum ConnectionState {
kConnectionStateOpen,
kConnectionStateClosed,
kConnectionStatePending
};
enum TypeCode { kTypeInput, kTypeOutput };
~MIDIPort() override = default;
String connection() const;
String id() const { return id_; }
String manufacturer() const { return manufacturer_; }
String name() const { return name_; }
String state() const;
String type() const;
String version() const { return version_; }
ScriptPromise open(ScriptState*);
ScriptPromise close(ScriptState*);
midi::mojom::PortState GetState() const { return state_; }
void SetState(midi::mojom::PortState);
ConnectionState GetConnection() const { return connection_; }
void Trace(blink::Visitor*) override;
DEFINE_ATTRIBUTE_EVENT_LISTENER(statechange, kStatechange);
// EventTarget
const AtomicString& InterfaceName() const override {
return event_target_names::kMIDIPort;
}
ExecutionContext* GetExecutionContext() const final;
// ScriptWrappable
bool HasPendingActivity() const final;
// ContextLifecycleObserver
void ContextDestroyed(ExecutionContext*) override;
protected:
MIDIPort(MIDIAccess*,
const String& id,
const String& manufacturer,
const String& name,
TypeCode,
const String& version,
midi::mojom::PortState);
void open();
bool IsOpening() { return running_open_count_; }
MIDIAccess* midiAccess() const { return access_; }
private:
void OpenAsynchronously(ScriptPromiseResolver*);
virtual void DidOpen(bool opened) {}
void CloseAsynchronously(ScriptPromiseResolver*);
ScriptPromise Accept(ScriptState*);
void SetStates(midi::mojom::PortState, ConnectionState);
String id_;
String manufacturer_;
String name_;
TypeCode type_;
String version_;
TraceWrapperMember<MIDIAccess> access_;
midi::mojom::PortState state_;
ConnectionState connection_;
unsigned running_open_count_ = 0;
};
} // namespace blink
#endif // THIRD_PARTY_BLINK_RENDERER_MODULES_WEBMIDI_MIDI_PORT_H_