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// Copyright 2014 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef MIDIAccessInitializer_h
#define MIDIAccessInitializer_h
#include "bindings/core/v8/ScriptPromise.h"
#include "bindings/core/v8/ScriptPromiseResolver.h"
#include "media/midi/midi_service.mojom-blink.h"
#include "modules/ModulesExport.h"
#include "modules/webmidi/MIDIAccessor.h"
#include "modules/webmidi/MIDIAccessorClient.h"
#include "modules/webmidi/MIDIOptions.h"
#include "modules/webmidi/MIDIPort.h"
#include "third_party/WebKit/public/platform/modules/permissions/permission.mojom-blink.h"
#include "third_party/WebKit/public/platform/modules/permissions/permission_status.mojom-blink.h"
#include "wtf/Vector.h"
#include <memory>
namespace blink {
class ScriptState;
class MODULES_EXPORT MIDIAccessInitializer : public ScriptPromiseResolver,
public MIDIAccessorClient {
public:
struct PortDescriptor {
DISALLOW_NEW_EXCEPT_PLACEMENT_NEW();
String id;
String manufacturer;
String name;
MIDIPort::TypeCode type;
String version;
midi::mojom::PortState state;
PortDescriptor(const String& id,
const String& manufacturer,
const String& name,
MIDIPort::TypeCode type,
const String& version,
midi::mojom::PortState state)
: id(id),
manufacturer(manufacturer),
name(name),
type(type),
version(version),
state(state) {}
};
static ScriptPromise start(ScriptState* scriptState,
const MIDIOptions& options) {
MIDIAccessInitializer* resolver =
new MIDIAccessInitializer(scriptState, options);
resolver->keepAliveWhilePending();
resolver->suspendIfNeeded();
return resolver->start();
}
~MIDIAccessInitializer() override = default;
// Eager finalization to allow dispose() operation access
// other (non eager) heap objects.
EAGERLY_FINALIZE();
// MIDIAccessorClient
void didAddInputPort(const String& id,
const String& manufacturer,
const String& name,
const String& version,
midi::mojom::PortState) override;
void didAddOutputPort(const String& id,
const String& manufacturer,
const String& name,
const String& version,
midi::mojom::PortState) override;
void didSetInputPortState(unsigned portIndex,
midi::mojom::PortState) override;
void didSetOutputPortState(unsigned portIndex,
midi::mojom::PortState) override;
void didStartSession(midi::mojom::Result) override;
void didReceiveMIDIData(unsigned portIndex,
const unsigned char* data,
size_t length,
double timeStamp) override {}
private:
MIDIAccessInitializer(ScriptState*, const MIDIOptions&);
ExecutionContext* getExecutionContext() const;
ScriptPromise start();
void contextDestroyed(ExecutionContext*) override;
void onPermissionsUpdated(mojom::blink::PermissionStatus);
void onPermissionUpdated(mojom::blink::PermissionStatus);
std::unique_ptr<MIDIAccessor> m_accessor;
Vector<PortDescriptor> m_portDescriptors;
MIDIOptions m_options;
mojom::blink::PermissionServicePtr m_permissionService;
};
} // namespace blink
#endif // MIDIAccessInitializer_h
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