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// Copyright 2013 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/extensions/api/signed_in_devices/signed_in_devices_manager.h"
#include <string>
#include <vector>
#include "base/lazy_instance.h"
#include "base/memory/linked_ptr.h"
#include "base/memory/scoped_ptr.h"
#include "base/memory/scoped_vector.h"
#include "base/values.h"
#include "chrome/browser/extensions/api/signed_in_devices/signed_in_devices_api.h"
#include "chrome/browser/extensions/extension_service.h"
#include "chrome/browser/profiles/profile.h"
#include "chrome/browser/sync/profile_sync_service.h"
#include "chrome/browser/sync/profile_sync_service_factory.h"
#include "chrome/common/extensions/api/signed_in_devices.h"
#include "components/sync_driver/device_info.h"
#include "extensions/browser/event_router.h"
#include "extensions/browser/extension_registry.h"
#include "extensions/common/extension.h"
using sync_driver::DeviceInfo;
namespace extensions {
namespace {
void FillDeviceInfo(const DeviceInfo& device_info,
api::signed_in_devices::DeviceInfo* api_device_info) {
api_device_info->id = device_info.public_id();
api_device_info->name = device_info.client_name();
api_device_info->os = api::signed_in_devices::ParseOS(
device_info.GetOSString());
api_device_info->type = api::signed_in_devices::ParseDeviceType(
device_info.GetDeviceTypeString());
api_device_info->chrome_version = device_info.chrome_version();
}
} // namespace
SignedInDevicesChangeObserver::SignedInDevicesChangeObserver(
const std::string& extension_id,
Profile* profile) : extension_id_(extension_id),
profile_(profile) {
ProfileSyncService* pss = ProfileSyncServiceFactory::GetForProfile(profile_);
if (pss && pss->GetDeviceInfoTracker()) {
pss->GetDeviceInfoTracker()->AddObserver(this);
}
}
SignedInDevicesChangeObserver::~SignedInDevicesChangeObserver() {
ProfileSyncService* pss = ProfileSyncServiceFactory::GetForProfile(profile_);
if (pss && pss->GetDeviceInfoTracker()) {
pss->GetDeviceInfoTracker()->RemoveObserver(this);
}
}
void SignedInDevicesChangeObserver::OnDeviceInfoChange() {
// There is a change in the list of devices. Get all devices and send them to
// the listener.
ScopedVector<DeviceInfo> devices = GetAllSignedInDevices(extension_id_,
profile_);
std::vector<linked_ptr<api::signed_in_devices::DeviceInfo> > args;
for (ScopedVector<DeviceInfo>::const_iterator it = devices.begin();
it != devices.end();
++it) {
linked_ptr<api::signed_in_devices::DeviceInfo> api_device =
make_linked_ptr(new api::signed_in_devices::DeviceInfo);
FillDeviceInfo(*(*it), api_device.get());
args.push_back(api_device);
}
scoped_ptr<base::ListValue> result =
api::signed_in_devices::OnDeviceInfoChange::Create(args);
scoped_ptr<Event> event(new Event(
api::signed_in_devices::OnDeviceInfoChange::kEventName,
result.Pass()));
event->restrict_to_browser_context = profile_;
EventRouter::Get(profile_)->DispatchEventToExtension(
extension_id_, event.Pass());
}
static base::LazyInstance<
BrowserContextKeyedAPIFactory<SignedInDevicesManager> > g_factory =
LAZY_INSTANCE_INITIALIZER;
// static
BrowserContextKeyedAPIFactory<SignedInDevicesManager>*
SignedInDevicesManager::GetFactoryInstance() {
return g_factory.Pointer();
}
SignedInDevicesManager::SignedInDevicesManager()
: profile_(NULL), extension_registry_observer_(this) {
}
SignedInDevicesManager::SignedInDevicesManager(content::BrowserContext* context)
: profile_(Profile::FromBrowserContext(context)),
extension_registry_observer_(this) {
extensions::EventRouter* router = extensions::EventRouter::Get(profile_);
if (router) {
router->RegisterObserver(
this, api::signed_in_devices::OnDeviceInfoChange::kEventName);
}
// Register for unload event so we could clear all our listeners when
// extensions have unloaded.
extension_registry_observer_.Add(ExtensionRegistry::Get(profile_));
}
SignedInDevicesManager::~SignedInDevicesManager() {}
void SignedInDevicesManager::OnListenerAdded(
const EventListenerInfo& details) {
for (ScopedVector<SignedInDevicesChangeObserver>::const_iterator it =
change_observers_.begin();
it != change_observers_.end();
++it) {
if ((*it)->extension_id() == details.extension_id) {
DCHECK(false) <<"OnListenerAded fired twice for same extension";
return;
}
}
change_observers_.push_back(new SignedInDevicesChangeObserver(
details.extension_id,
profile_));
}
void SignedInDevicesManager::OnListenerRemoved(
const EventListenerInfo& details) {
RemoveChangeObserverForExtension(details.extension_id);
}
void SignedInDevicesManager::RemoveChangeObserverForExtension(
const std::string& extension_id) {
for (ScopedVector<SignedInDevicesChangeObserver>::iterator it =
change_observers_.begin();
it != change_observers_.end();
++it) {
if ((*it)->extension_id() == extension_id) {
change_observers_.erase(it);
return;
}
}
}
void SignedInDevicesManager::OnExtensionUnloaded(
content::BrowserContext* browser_context,
const Extension* extension,
UnloadedExtensionInfo::Reason reason) {
RemoveChangeObserverForExtension(extension->id());
}
} // namespace extensions
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