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// Copyright 2014 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_DEVICE_H_
#define THIRD_PARTY_BLINK_RENDERER_MODULES_BLUETOOTH_BLUETOOTH_DEVICE_H_
#include "third_party/blink/public/mojom/bluetooth/web_bluetooth.mojom-blink-forward.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/abort_signal.h"
#include "third_party/blink/renderer/core/execution_context/execution_context_lifecycle_observer.h"
#include "third_party/blink/renderer/modules/bluetooth/bluetooth_remote_gatt_server.h"
#include "third_party/blink/renderer/modules/event_target_modules.h"
#include "third_party/blink/renderer/platform/bindings/script_wrappable.h"
#include "third_party/blink/renderer/platform/heap/collection_support/heap_hash_map.h"
#include "third_party/blink/renderer/platform/heap/garbage_collected.h"
#include "third_party/blink/renderer/platform/mojo/heap_mojo_associated_receiver.h"
#include "third_party/blink/renderer/platform/wtf/text/wtf_string.h"
namespace blink {
class Bluetooth;
class BluetoothAttributeInstanceMap;
class BluetoothRemoteGATTCharacteristic;
class BluetoothRemoteGATTDescriptor;
class BluetoothRemoteGATTServer;
class BluetoothRemoteGATTService;
class WatchAdvertisementsOptions;
// BluetoothDevice represents a physical bluetooth device in the DOM. See IDL.
class BluetoothDevice final
: public EventTarget,
public ExecutionContextClient,
public ActiveScriptWrappable<BluetoothDevice>,
public mojom::blink::WebBluetoothAdvertisementClient {
DEFINE_WRAPPERTYPEINFO();
public:
BluetoothDevice(ExecutionContext*,
mojom::blink::WebBluetoothDevicePtr,
Bluetooth*);
BluetoothRemoteGATTService* GetOrCreateRemoteGATTService(
mojom::blink::WebBluetoothRemoteGATTServicePtr,
bool is_primary,
const String& device_instance_id);
bool IsValidService(const String& service_instance_id);
BluetoothRemoteGATTCharacteristic* GetOrCreateRemoteGATTCharacteristic(
ExecutionContext*,
mojom::blink::WebBluetoothRemoteGATTCharacteristicPtr,
BluetoothRemoteGATTService*);
bool IsValidCharacteristic(const String& characteristic_instance_id);
BluetoothRemoteGATTDescriptor* GetOrCreateBluetoothRemoteGATTDescriptor(
mojom::blink::WebBluetoothRemoteGATTDescriptorPtr,
BluetoothRemoteGATTCharacteristic*);
bool IsValidDescriptor(const String& descriptor_instance_id);
// We should disconnect from the device in all of the following cases:
// 1. When the object gets GarbageCollected e.g. it went out of scope.
// dispose() is called in this case.
// 2. When the parent document gets detached e.g. reloading a page.
// stop() is called in this case.
// TODO(ortuno): Users should be able to turn on notifications for
// events on navigator.bluetooth and still remain connected even if the
// BluetoothDevice object is garbage collected.
// Performs necessary cleanup when a device disconnects and fires
// gattserverdisconnected event.
void ClearAttributeInstanceMapAndFireEvent();
// EventTarget methods:
const AtomicString& InterfaceName() const override;
ExecutionContext* GetExecutionContext() const override;
Bluetooth* GetBluetooth() { return bluetooth_.Get(); }
const mojom::blink::WebBluetoothDevicePtr& GetDevice() const {
return device_;
}
// Interface required by Garbage Collection:
void Trace(Visitor*) const override;
// IDL exposed interface:
ScriptPromise<IDLUndefined> watchAdvertisements(
ScriptState*,
const WatchAdvertisementsOptions*,
ExceptionState&);
ScriptPromise<IDLUndefined> forget(ScriptState*, ExceptionState&);
String id() { return device_->id.DeviceIdInBase64().c_str(); }
String name() { return device_->name; }
BluetoothRemoteGATTServer* gatt() { return gatt_.Get(); }
bool watchingAdvertisements() { return client_receiver_.is_bound(); }
void AbortWatchAdvertisements(AbortSignal* signal);
// WebBluetoothAdvertisementClient:
void AdvertisingEvent(mojom::blink::WebBluetoothAdvertisingEventPtr) override;
// ActiveScriptWrappable:
bool HasPendingActivity() const override;
DEFINE_ATTRIBUTE_EVENT_LISTENER(advertisementreceived, kAdvertisementreceived)
DEFINE_ATTRIBUTE_EVENT_LISTENER(gattserverdisconnected,
kGattserverdisconnected)
protected:
// EventTarget overrides:
void AddedEventListener(const AtomicString& eventType,
RegisteredEventListener&) override;
private:
void WatchAdvertisementsCallback(mojom::blink::WebBluetoothResult);
// Holds all GATT Attributes associated with this BluetoothDevice.
Member<BluetoothAttributeInstanceMap> attribute_instance_map_;
mojom::blink::WebBluetoothDevicePtr device_;
Member<BluetoothRemoteGATTServer> gatt_;
Member<Bluetooth> bluetooth_;
Member<ScriptPromiseResolver<IDLUndefined>> watch_advertisements_resolver_;
HeapMojoAssociatedReceiver<mojom::blink::WebBluetoothAdvertisementClient,
BluetoothDevice>
client_receiver_;
// Any unaborted signal passed to watchAdvertisements() can abort
// advertisements for this device, regardless of previous aborts from other
// signals. Abort algorithm handles therefore need to remain alive as long as
// both the device and associated signal remain alive, so we store the handles
// in a map keyed weakly by AbortSignal.
HeapHashMap<WeakMember<AbortSignal>, Member<AbortSignal::AlgorithmHandle>>
abort_handle_map_;
};
} // namespace blink
#endif // THIRD_PARTY_BLINK_RENDERER_MODULES_BLUETOOTH_BLUETOOTH_DEVICE_H_
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