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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.
#include "device/bluetooth/bluetooth_discovery_session.h"
#include "base/bind.h"
#include "device/bluetooth/bluetooth_adapter.h"
#include "device/bluetooth/bluetooth_discovery_filter.h"
namespace device {
BluetoothDiscoverySession::BluetoothDiscoverySession(
scoped_refptr<BluetoothAdapter> adapter,
scoped_ptr<BluetoothDiscoveryFilter> discovery_filter)
: active_(true),
adapter_(adapter),
discovery_filter_(discovery_filter.release()),
weak_ptr_factory_(this) {
DCHECK(adapter_.get());
}
BluetoothDiscoverySession::~BluetoothDiscoverySession() {
if (active_) {
Stop(base::Bind(&base::DoNothing), base::Bind(&base::DoNothing));
MarkAsInactive();
}
}
bool BluetoothDiscoverySession::IsActive() const {
return active_;
}
void BluetoothDiscoverySession::Stop(const base::Closure& success_callback,
const ErrorCallback& error_callback) {
if (!active_) {
LOG(WARNING) << "Discovery session not active. Cannot stop.";
BluetoothAdapter::RecordBluetoothDiscoverySessionStopOutcome(
UMABluetoothDiscoverySessionOutcome::NOT_ACTIVE);
error_callback.Run();
return;
}
VLOG(1) << "Stopping device discovery session.";
base::Closure deactive_discovery_session =
base::Bind(&BluetoothDiscoverySession::DeactivateDiscoverySession,
weak_ptr_factory_.GetWeakPtr());
// Create a callback that runs
// BluetoothDiscoverySession::DeactivateDiscoverySession if the session still
// exists, but always runs success_callback.
base::Closure discovery_session_removed_callback =
base::Bind(&BluetoothDiscoverySession::OnDiscoverySessionRemoved,
deactive_discovery_session, success_callback);
adapter_->RemoveDiscoverySession(
discovery_filter_.get(), discovery_session_removed_callback,
base::Bind(&BluetoothDiscoverySession::OnDiscoverySessionRemovalFailed,
error_callback));
}
// static
void BluetoothDiscoverySession::OnDiscoverySessionRemoved(
const base::Closure& deactivate_discovery_session,
const base::Closure& success_callback) {
BluetoothAdapter::RecordBluetoothDiscoverySessionStopOutcome(
UMABluetoothDiscoverySessionOutcome::SUCCESS);
deactivate_discovery_session.Run();
success_callback.Run();
}
// static
void BluetoothDiscoverySession::OnDiscoverySessionRemovalFailed(
const base::Closure& error_callback,
UMABluetoothDiscoverySessionOutcome outcome) {
BluetoothAdapter::RecordBluetoothDiscoverySessionStopOutcome(outcome);
error_callback.Run();
}
void BluetoothDiscoverySession::DeactivateDiscoverySession() {
MarkAsInactive();
discovery_filter_.reset();
}
void BluetoothDiscoverySession::MarkAsInactive() {
if (!active_)
return;
active_ = false;
adapter_->DiscoverySessionBecameInactive(this);
}
static void IgnoreDiscoveryOutcome(
const base::Closure& error_callback,
UMABluetoothDiscoverySessionOutcome outcome) {
error_callback.Run();
}
void BluetoothDiscoverySession::SetDiscoveryFilter(
scoped_ptr<BluetoothDiscoveryFilter> discovery_filter,
const base::Closure& callback,
const ErrorCallback& error_callback) {
discovery_filter_.reset(discovery_filter.release());
// BluetoothDiscoverySession::SetDiscoveryFilter is only used from a private
// extension API, so we don't bother histogramming its failures.
adapter_->SetDiscoveryFilter(
adapter_->GetMergedDiscoveryFilter(), callback,
base::Bind(&IgnoreDiscoveryOutcome, error_callback));
}
const BluetoothDiscoveryFilter* BluetoothDiscoverySession::GetDiscoveryFilter()
const {
return discovery_filter_.get();
}
} // namespace device
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