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// Copyright 2015 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef THIRD_PARTY_BLINK_RENDERER_MODULES_BLUETOOTH_BLUETOOTH_REMOTE_GATT_SERVER_H_
#define THIRD_PARTY_BLINK_RENDERER_MODULES_BLUETOOTH_BLUETOOTH_REMOTE_GATT_SERVER_H_
#include "base/task/single_thread_task_runner.h"
#include "third_party/blink/public/mojom/bluetooth/web_bluetooth.mojom-blink.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/bindings/modules/v8/v8_typedefs.h"
#include "third_party/blink/renderer/core/execution_context/execution_context_lifecycle_observer.h"
#include "third_party/blink/renderer/modules/bluetooth/bluetooth_device.h"
#include "third_party/blink/renderer/platform/bindings/script_wrappable.h"
#include "third_party/blink/renderer/platform/heap/collection_support/heap_hash_set.h"
#include "third_party/blink/renderer/platform/heap/garbage_collected.h"
#include "third_party/blink/renderer/platform/mojo/heap_mojo_associated_receiver_set.h"
#include "third_party/blink/renderer/platform/mojo/heap_mojo_wrapper_mode.h"
#include "third_party/blink/renderer/platform/scheduler/public/frame_scheduler.h"
#include "third_party/blink/renderer/platform/wtf/text/wtf_string.h"
namespace blink {
class BluetoothDevice;
class BluetoothRemoteGATTService;
class ExceptionState;
class ScriptState;
// BluetoothRemoteGATTServer provides a way to interact with a connected
// bluetooth peripheral.
class BluetoothRemoteGATTServer
: public ScriptWrappable,
public mojom::blink::WebBluetoothServerClient {
DEFINE_WRAPPERTYPEINFO();
public:
BluetoothRemoteGATTServer(ExecutionContext*, BluetoothDevice*);
// mojom::blink::WebBluetoothServerClient:
void GATTServerDisconnected() override;
// The Active Algorithms set is maintained so that disconnection, i.e.
// disconnect() method or the device disconnecting by itself, can be detected
// by algorithms. They check via RemoveFromActiveAlgorithms that their
// resolvers is still in the set of active algorithms.
//
// Adds |resolver| to the set of Active Algorithms. CHECK-fails if
// |resolver| was already added.
void AddToActiveAlgorithms(ScriptPromiseResolverBase*);
// Removes |resolver| from the set of Active Algorithms if it was in the set
// and returns true, false otherwise.
bool RemoveFromActiveAlgorithms(ScriptPromiseResolverBase*);
// If gatt is connected then sets gatt.connected to false and disconnects.
// This function only performs the necessary steps to ensure a device
// disconnects therefore it should only be used when the object is being
// garbage collected or the context is being destroyed.
void DisconnectIfConnected();
// Performs necessary cleanup when a device disconnects and fires
// gattserverdisconnected event.
void CleanupDisconnectedDeviceAndFireEvent();
void DispatchDisconnected();
// Interface required by Garbage Collectoin:
void Trace(Visitor*) const override;
// IDL exposed interface:
BluetoothDevice* device() { return device_.Get(); }
bool connected() { return connected_; }
ScriptPromise<BluetoothRemoteGATTServer> connect(ScriptState*,
ExceptionState&);
void disconnect(ScriptState*, ExceptionState&);
ScriptPromise<BluetoothRemoteGATTService> getPrimaryService(
ScriptState* script_state,
const V8BluetoothServiceUUID* service,
ExceptionState& exception_state);
ScriptPromise<IDLSequence<BluetoothRemoteGATTService>> getPrimaryServices(
ScriptState* script_state,
const V8BluetoothServiceUUID* service,
ExceptionState& exception_state);
ScriptPromise<IDLSequence<BluetoothRemoteGATTService>> getPrimaryServices(
ScriptState*,
ExceptionState&);
private:
void GetPrimaryServicesImpl(ScriptPromiseResolverBase*,
mojom::blink::WebBluetoothGATTQueryQuantity,
String service_uuid = String());
void ConnectCallback(ScriptPromiseResolver<BluetoothRemoteGATTServer>*,
mojom::blink::WebBluetoothResult);
void GetPrimaryServicesCallback(
const String& requested_service_uuid,
mojom::blink::WebBluetoothGATTQueryQuantity,
ScriptPromiseResolverBase*,
mojom::blink::WebBluetoothResult,
std::optional<Vector<mojom::blink::WebBluetoothRemoteGATTServicePtr>>
services);
// Contains a ScriptPromiseResolverBase corresponding to each active algorithm
// using this server’s connection.
HeapHashSet<Member<ScriptPromiseResolverBase>> active_algorithms_;
const scoped_refptr<base::SingleThreadTaskRunner> task_runner_;
HeapMojoAssociatedReceiverSet<mojom::blink::WebBluetoothServerClient,
BluetoothRemoteGATTServer>
client_receivers_;
Member<BluetoothDevice> device_;
bool connected_;
FrameScheduler::SchedulingAffectingFeatureHandle
feature_handle_for_scheduler_;
};
} // namespace blink
#endif // THIRD_PARTY_BLINK_RENDERER_MODULES_BLUETOOTH_BLUETOOTH_REMOTE_GATT_SERVER_H_
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