gecko/dom/bluetooth/BluetoothManager.cpp

282 lines
7.8 KiB
C++

/* -*- Mode: c++; c-basic-offset: 2; indent-tabs-mode: nil; tab-width: 40 -*- */
/* vim: set ts=2 et sw=2 tw=40: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this file,
* You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "BluetoothManager.h"
#include "BluetoothCommon.h"
#include "BluetoothFirmware.h"
#include "BluetoothAdapter.h"
#include "BluetoothUtils.h"
#include "nsIURI.h"
#include "nsIURL.h"
#include "nsPIDOMWindow.h"
#include "jsapi.h"
#include "mozilla/Preferences.h"
#include "nsDOMClassInfo.h"
#include "nsDOMEvent.h"
#include "nsThreadUtils.h"
#include "nsXPCOMCIDInternal.h"
#include "mozilla/LazyIdleThread.h"
#include "mozilla/Util.h"
#include "nsCharSeparatedTokenizer.h"
#include "nsContentUtils.h"
#include "nsIInterfaceRequestorUtils.h"
#include "nsNetUtil.h"
#include "nsServiceManagerUtils.h"
#define DOM_BLUETOOTH_URL_PREF "dom.mozBluetooth.whitelist"
using namespace mozilla;
using mozilla::Preferences;
USING_BLUETOOTH_NAMESPACE
static void
FireEnabled(bool aResult, nsIDOMDOMRequest* aDomRequest)
{
nsCOMPtr<nsIDOMRequestService> rs =
do_GetService("@mozilla.org/dom/dom-request-service;1");
if (!rs) {
NS_WARNING("No DOMRequest Service!");
return;
}
DebugOnly<nsresult> rv =
aResult ?
rs->FireSuccess(aDomRequest, JSVAL_VOID) :
rs->FireError(aDomRequest,
NS_LITERAL_STRING("Bluetooth firmware loading failed"));
NS_WARN_IF_FALSE(NS_SUCCEEDED(rv), "Bluetooth firmware loading failed");
}
DOMCI_DATA(BluetoothManager, BluetoothManager)
NS_IMPL_CYCLE_COLLECTION_CLASS(BluetoothManager)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN_INHERITED(BluetoothManager,
nsDOMEventTargetHelper)
NS_CYCLE_COLLECTION_TRAVERSE_EVENT_HANDLER(enabled)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END
NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN_INHERITED(BluetoothManager,
nsDOMEventTargetHelper)
NS_CYCLE_COLLECTION_UNLINK_EVENT_HANDLER(enabled)
NS_IMPL_CYCLE_COLLECTION_UNLINK_END
NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION_INHERITED(BluetoothManager)
NS_INTERFACE_MAP_ENTRY(nsIDOMBluetoothManager)
NS_DOM_INTERFACE_MAP_ENTRY_CLASSINFO(BluetoothManager)
NS_INTERFACE_MAP_END_INHERITING(nsDOMEventTargetHelper)
NS_IMPL_ADDREF_INHERITED(BluetoothManager, nsDOMEventTargetHelper)
NS_IMPL_RELEASE_INHERITED(BluetoothManager, nsDOMEventTargetHelper)
class ToggleBtResultTask : public nsRunnable
{
public:
ToggleBtResultTask(nsRefPtr<BluetoothManager>& aManager,
nsCOMPtr<nsIDOMDOMRequest>& aReq,
bool aEnabled,
bool aResult)
: mEnabled(aEnabled),
mResult(aResult)
{
MOZ_ASSERT(!NS_IsMainThread());
mDOMRequest.swap(aReq);
mManagerPtr.swap(aManager);
}
NS_IMETHOD Run()
{
MOZ_ASSERT(NS_IsMainThread());
// Update bt power status to BluetoothAdapter only if loading bluetooth
// firmware succeeds.
if (mResult) {
mManagerPtr->SetEnabledInternal(mEnabled);
}
FireEnabled(mResult, mDOMRequest);
//mAdapterPtr must be null before returning to prevent the background
//thread from racing to release it during the destruction of this runnable.
mManagerPtr = NULL;
mDOMRequest = NULL;
return NS_OK;
}
private:
nsRefPtr<BluetoothManager> mManagerPtr;
nsCOMPtr<nsIDOMDOMRequest> mDOMRequest;
bool mEnabled;
bool mResult;
};
class ToggleBtTask : public nsRunnable
{
public:
ToggleBtTask(bool aEnabled, nsIDOMDOMRequest* aReq,
BluetoothManager* aManager)
: mEnabled(aEnabled),
mManagerPtr(aManager),
mDOMRequest(aReq)
{
MOZ_ASSERT(NS_IsMainThread());
}
NS_IMETHOD Run()
{
MOZ_ASSERT(!NS_IsMainThread());
bool result;
#ifdef MOZ_WIDGET_GONK
// Platform specific check for gonk until object is divided in
// different implementations per platform. Linux doesn't require
// bluetooth firmware loading, but code should work otherwise.
if(!EnsureBluetoothInit()) {
NS_ERROR("Failed to load bluedroid library.\n");
return NS_ERROR_FAILURE;
}
// return 1 if it's enabled, 0 if it's disabled, and -1 on error
int isEnabled = IsBluetoothEnabled();
if ((isEnabled == 1 && mEnabled) || (isEnabled == 0 && !mEnabled)) {
result = true;
} else if (isEnabled < 0) {
result = false;
} else if (mEnabled) {
result = (EnableBluetooth() == 0) ? true : false;
} else {
result = (DisableBluetooth() == 0) ? true : false;
}
#else
result = true;
NS_WARNING("No bluetooth firmware loading support in this build configuration, faking a success event instead");
#endif
// Create a result thread and pass it to Main Thread,
nsCOMPtr<nsIRunnable> resultRunnable = new ToggleBtResultTask(mManagerPtr, mDOMRequest, mEnabled, result);
if (NS_FAILED(NS_DispatchToMainThread(resultRunnable))) {
NS_WARNING("Failed to dispatch to main thread!");
}
return NS_OK;
}
private:
bool mEnabled;
nsRefPtr<BluetoothManager> mManagerPtr;
nsCOMPtr<nsIDOMDOMRequest> mDOMRequest;
};
BluetoothManager::BluetoothManager(nsPIDOMWindow *aWindow) :
mEnabled(false),
mName(nsDependentCString("/"))
{
BindToOwner(aWindow);
}
BluetoothManager::~BluetoothManager()
{
if(NS_FAILED(UnregisterBluetoothEventHandler(mName, this))) {
NS_WARNING("Failed to unregister object with observer!");
}
}
NS_IMETHODIMP
BluetoothManager::SetEnabled(bool aEnabled, nsIDOMDOMRequest** aDomRequest)
{
nsCOMPtr<nsIDOMRequestService> rs = do_GetService("@mozilla.org/dom/dom-request-service;1");
if (!rs) {
NS_ERROR("No DOMRequest Service!");
return NS_ERROR_FAILURE;
}
nsCOMPtr<nsIDOMDOMRequest> request;
nsresult rv = rs->CreateRequest(GetOwner(), getter_AddRefs(request));
NS_ENSURE_SUCCESS(rv, rv);
if (!mToggleBtThread) {
mToggleBtThread = new LazyIdleThread(15000, NS_LITERAL_CSTRING("Bluetooth"));
}
nsCOMPtr<nsIRunnable> r = new ToggleBtTask(aEnabled, request, this);
rv = mToggleBtThread->Dispatch(r, NS_DISPATCH_NORMAL);
NS_ENSURE_SUCCESS(rv, rv);
request.forget(aDomRequest);
return NS_OK;
}
NS_IMETHODIMP
BluetoothManager::GetEnabled(bool* aEnabled)
{
*aEnabled = mEnabled;
return NS_OK;
}
NS_IMETHODIMP
BluetoothManager::GetDefaultAdapter(nsIDOMBluetoothAdapter** aAdapter)
{
nsCString path;
nsresult rv = GetDefaultAdapterPathInternal(path);
if(NS_FAILED(rv)) {
NS_WARNING("Cannot fetch adapter path!");
return NS_ERROR_FAILURE;
}
nsRefPtr<BluetoothAdapter> adapter = BluetoothAdapter::Create(path);
adapter.forget(aAdapter);
return NS_OK;
}
// static
already_AddRefed<BluetoothManager>
BluetoothManager::Create(nsPIDOMWindow* aWindow) {
nsRefPtr<BluetoothManager> manager = new BluetoothManager(aWindow);
nsDependentCString name("/");
if(NS_FAILED(RegisterBluetoothEventHandler(name, manager))) {
NS_WARNING("Failed to register object with observer!");
return NULL;
}
return manager.forget();
}
nsresult
NS_NewBluetoothManager(nsPIDOMWindow* aWindow,
nsIDOMBluetoothManager** aBluetoothManager)
{
NS_ASSERTION(aWindow, "Null pointer!");
bool allowed;
nsresult rv = nsContentUtils::IsOnPrefWhitelist(aWindow, DOM_BLUETOOTH_URL_PREF, &allowed);
NS_ENSURE_SUCCESS(rv, rv);
if (!allowed) {
*aBluetoothManager = NULL;
return NS_OK;
}
nsRefPtr<BluetoothManager> bluetoothManager = BluetoothManager::Create(aWindow);
bluetoothManager.forget(aBluetoothManager);
return NS_OK;
}
void BluetoothManager::Notify(const BluetoothEvent& aData) {
printf("Received an manager message!\n");
}