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// Copyright (c) 2012 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 "chrome/browser/chromeos/extensions/bluetooth_event_router.h"
#include <map>
#include "base/json/json_writer.h"
#include "base/memory/ref_counted.h"
#include "base/memory/scoped_vector.h"
#include "base/utf_string_conversions.h"
#include "chrome/browser/chromeos/bluetooth/bluetooth_adapter.h"
#include "chrome/browser/chromeos/bluetooth/bluetooth_device.h"
#include "chrome/browser/chromeos/bluetooth/bluetooth_socket.h"
#include "chrome/browser/extensions/api/bluetooth/bluetooth_api_utils.h"
#include "chrome/browser/extensions/event_names.h"
#include "chrome/browser/extensions/event_router.h"
#include "chrome/common/extensions/api/experimental_bluetooth.h"
namespace experimental_bluetooth = extensions::api::experimental_bluetooth;
namespace chromeos {
ExtensionBluetoothEventRouter::ExtensionBluetoothEventRouter(Profile* profile)
: profile_(profile),
adapter_(chromeos::BluetoothAdapter::DefaultAdapter()),
next_socket_id_(1) {
DCHECK(profile_);
DCHECK(adapter_.get());
adapter_->AddObserver(this);
}
ExtensionBluetoothEventRouter::~ExtensionBluetoothEventRouter() {
adapter_->RemoveObserver(this);
socket_map_.clear();
}
int ExtensionBluetoothEventRouter::RegisterSocket(
scoped_refptr<BluetoothSocket> socket) {
// If there is a socket registered with the same fd, just return it's id
for (SocketMap::const_iterator i = socket_map_.begin();
i != socket_map_.end(); ++i) {
if (i->second->fd() == socket->fd()) {
return i->first;
}
}
int return_id = next_socket_id_++;
socket_map_[return_id] = socket;
return return_id;
}
bool ExtensionBluetoothEventRouter::ReleaseSocket(int id) {
SocketMap::iterator socket_entry = socket_map_.find(id);
if (socket_entry == socket_map_.end())
return false;
socket_map_.erase(socket_entry);
return true;
}
scoped_refptr<BluetoothSocket> ExtensionBluetoothEventRouter::GetSocket(
int id) {
SocketMap::iterator socket_entry = socket_map_.find(id);
if (socket_entry == socket_map_.end())
return NULL;
return socket_entry->second;
}
void ExtensionBluetoothEventRouter::SetResponsibleForDiscovery(
bool responsible) {
responsible_for_discovery_ = responsible;
}
bool ExtensionBluetoothEventRouter::IsResponsibleForDiscovery() const {
return responsible_for_discovery_;
}
void ExtensionBluetoothEventRouter::SetSendDiscoveryEvents(bool should_send) {
// At the transition into sending devices, also send past devices that
// were discovered as they will not be discovered again.
if (should_send && !send_discovery_events_) {
for (DeviceList::const_iterator i = discovered_devices_.begin();
i != discovered_devices_.end(); ++i) {
DispatchDeviceEvent(extensions::event_names::kBluetoothOnDeviceDiscovered,
**i);
}
}
send_discovery_events_ = should_send;
}
void ExtensionBluetoothEventRouter::DispatchDeviceEvent(
const char* event_name, const experimental_bluetooth::Device& device) {
scoped_ptr<ListValue> args(new ListValue());
args->Append(device.ToValue().release());
profile_->GetExtensionEventRouter()->DispatchEventToRenderers(
event_name,
args.Pass(),
NULL,
GURL());
}
void ExtensionBluetoothEventRouter::AdapterPresentChanged(
chromeos::BluetoothAdapter* adapter, bool present) {
if (adapter != adapter_.get()) {
DVLOG(1) << "Ignoring event for adapter " << adapter->address();
return;
}
DispatchBooleanValueEvent(
extensions::event_names::kBluetoothOnAvailabilityChanged,
present);
}
void ExtensionBluetoothEventRouter::AdapterPoweredChanged(
chromeos::BluetoothAdapter* adapter, bool has_power) {
if (adapter != adapter_.get()) {
DVLOG(1) << "Ignoring event for adapter " << adapter->address();
return;
}
DispatchBooleanValueEvent(
extensions::event_names::kBluetoothOnPowerChanged,
has_power);
}
void ExtensionBluetoothEventRouter::AdapterDiscoveringChanged(
chromeos::BluetoothAdapter* adapter, bool discovering) {
if (adapter != adapter_.get()) {
DVLOG(1) << "Ignoring event for adapter " << adapter->address();
return;
}
if (!discovering) {
send_discovery_events_ = false;
responsible_for_discovery_ = false;
discovered_devices_.clear();
}
DispatchBooleanValueEvent(
extensions::event_names::kBluetoothOnDiscoveringChanged,
discovering);
}
void ExtensionBluetoothEventRouter::DeviceAdded(
chromeos::BluetoothAdapter* adapter, chromeos::BluetoothDevice* device) {
if (adapter != adapter_.get()) {
DVLOG(1) << "Ignoring event for adapter " << adapter->address();
return;
}
experimental_bluetooth::Device* extension_device =
new experimental_bluetooth::Device();
experimental_bluetooth::BluetoothDeviceToApiDevice(*device, extension_device);
discovered_devices_.push_back(extension_device);
if (!send_discovery_events_)
return;
DispatchDeviceEvent(extensions::event_names::kBluetoothOnDeviceDiscovered,
*extension_device);
}
void ExtensionBluetoothEventRouter::DispatchBooleanValueEvent(
const char* event_name, bool value) {
scoped_ptr<ListValue> args(new ListValue());
args->Append(Value::CreateBooleanValue(value));
profile_->GetExtensionEventRouter()->DispatchEventToRenderers(
event_name, args.Pass(), NULL, GURL());
}
} // namespace chromeos
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