C++ Handle::isString方法代码示例

NS_IMETHODIMP
GonkGPSGeolocationProvider::Handle(const nsAString& aName,
                                   JS::Handle<JS::Value> aResult)
{
#ifdef MOZ_B2G_RIL
  if (aName.EqualsLiteral("ril.supl.apn")) {
    // When we get the APN, we attempt to call data_call_open of AGPS.
    if (aResult.isString()) {
      JSContext *cx = nsContentUtils::GetCurrentJSContext();
      NS_ENSURE_TRUE(cx, NS_OK);

      // NB: No need to enter a compartment to read the contents of a string.
      nsAutoJSString apn;
      if (!apn.init(cx, aResult.toString())) {
        return NS_ERROR_FAILURE;
      }
      if (!apn.IsEmpty()) {
        SetAGpsDataConn(apn);
      }
    }
  } else
#endif // MOZ_B2G_RIL
  if (aName.EqualsLiteral(SETTING_DEBUG_ENABLED)) {
    gGPSDebugging = aResult.isBoolean() ? aResult.toBoolean() : false;
    return NS_OK;
  }
  return NS_OK;
}

NS_IMETHODIMP
GonkGPSGeolocationProvider::Handle(const nsAString& aName,
                                   JS::Handle<JS::Value> aResult)
{
#ifdef MOZ_B2G_RIL
  if (aName.EqualsLiteral("ril.supl.apn")) {
    // When we get the APN, we attempt to call data_call_open of AGPS.
    if (aResult.isString()) {
      JSContext *cx = nsContentUtils::GetCurrentJSContext();
      NS_ENSURE_TRUE(cx, NS_OK);

      // NB: No need to enter a compartment to read the contents of a string.
      nsAutoJSString apn;
      if (!apn.init(cx, aResult.toString())) {
        return NS_ERROR_FAILURE;
      }
      if (!apn.IsEmpty()) {
        SetAGpsDataConn(apn);
      }
    }
  } else
#endif // MOZ_B2G_RIL
  if (aName.EqualsASCII(kSettingDebugGpsIgnored)) {
    gDebug_isGPSLocationIgnored = aResult.isBoolean() ? aResult.toBoolean() : false;
    if (gDebug_isLoggingEnabled) {
      nsContentUtils::LogMessageToConsole("geo: Debug: GPS ignored %d\n", gDebug_isGPSLocationIgnored);
    }
    return NS_OK;
  } else if (aName.EqualsASCII(kSettingDebugEnabled)) {
    gDebug_isLoggingEnabled = aResult.isBoolean() ? aResult.toBoolean() : false;
    return NS_OK;
  }
  return NS_OK;
}

NS_IMETHODIMP
GonkGPSGeolocationProvider::Handle(const nsAString& aName,
                                   JS::Handle<JS::Value> aResult)
{
#ifdef MOZ_B2G_RIL
  if (aName.EqualsLiteral("ril.supl.apn")) {
    // When we get the APN, we attempt to call data_call_open of AGPS.
    if (aResult.isString()) {
      JSContext *cx = nsContentUtils::GetCurrentJSContext();
      NS_ENSURE_TRUE(cx, NS_OK);

      // NB: No need to enter a compartment to read the contents of a string.
      nsAutoJSString apn;
      if (!apn.init(cx, aResult.toString())) {
        return NS_ERROR_FAILURE;
      }
      if (!apn.IsEmpty()) {
        SetAGpsDataConn(apn);
      }
    }
  } else if (aName.EqualsASCII(kSettingRilDefaultServiceId)) {
    uint32_t id = 0;
    JSContext *cx = nsContentUtils::GetCurrentJSContext();
    NS_ENSURE_TRUE(cx, NS_OK);
    if (!JS::ToUint32(cx, aResult, &id)) {
      return NS_ERROR_FAILURE;
    }

    if (!IsValidRilServiceId(id)) {
      return NS_ERROR_UNEXPECTED;
    }

    mRilDataServiceId = id;
    UpdateRadioInterface();

    MOZ_ASSERT(!mObservingNetworkConnStateChange);

    // Now we know which service ID to deal with, observe necessary topic then
    nsCOMPtr<nsIObserverService> obs = services::GetObserverService();
    NS_ENSURE_TRUE(obs, NS_OK);

    if (NS_FAILED(obs->AddObserver(this, kNetworkConnStateChangedTopic, false))) {
      NS_WARNING("Failed to add network state changed observer!");
    } else {
      mObservingNetworkConnStateChange = true;
    }
  }
#endif // MOZ_B2G_RIL
  return NS_OK;
}

NS_IMETHODIMP
GonkGPSGeolocationProvider::Handle(const nsAString& aName,
                                   JS::Handle<JS::Value> aResult)
{
  if (aName.EqualsLiteral("ril.supl.apn")) {
    JSContext *cx = nsContentUtils::GetCurrentJSContext();
    NS_ENSURE_TRUE(cx, NS_OK);

    // When we get the APN, we attempt to call data_call_open of AGPS.
    if (aResult.isString()) {
      // NB: No need to enter a compartment to read the contents of a string.
      nsDependentJSString apn;
      apn.init(cx, aResult.toString());
      if (!apn.IsEmpty()) {
        SetAGpsDataConn(apn);
      }
    }
  }
  return NS_OK;
}

NS_IMETHODIMP
TCPSocketParent::SendEvent(const nsAString& aType, JS::Handle<JS::Value> aDataVal,
                           const nsAString& aReadyState, JSContext* aCx)
{
  if (!mIPCOpen) {
    NS_WARNING("Dropping callback due to no IPC connection");
    return NS_OK;
  }

  CallbackData data;
  if (aDataVal.isString()) {
    JSString* jsstr = aDataVal.toString();
    nsAutoJSString str;
    if (!str.init(aCx, jsstr)) {
      FireInteralError(this, __LINE__);
      return NS_ERROR_OUT_OF_MEMORY;
    }
    data = SendableData(str);

  } else if (aDataVal.isUndefined() || aDataVal.isNull()) {
    data = mozilla::void_t();

  } else if (aDataVal.isObject()) {
    JS::Rooted<JSObject *> obj(aCx, &aDataVal.toObject());
    if (JS_IsArrayBufferObject(obj)) {
      FallibleTArray<uint8_t> fallibleArr;
      uint32_t errLine = 0;
      do {
          JS::AutoCheckCannotGC nogc;
          uint32_t nbytes = JS_GetArrayBufferByteLength(obj);
          uint8_t* buffer = JS_GetArrayBufferData(obj, nogc);
          if (!buffer) {
              errLine = __LINE__;
              break;
          }
          if (!fallibleArr.InsertElementsAt(0, buffer, nbytes, fallible)) {
              errLine = __LINE__;
              break;
          }
      } while (false);

      if (errLine) {
          FireInteralError(this, errLine);
          return NS_ERROR_OUT_OF_MEMORY;
      }

      InfallibleTArray<uint8_t> arr;
      arr.SwapElements(fallibleArr);
      data = SendableData(arr);

    } else {
      nsAutoJSString name;

      JS::Rooted<JS::Value> val(aCx);
      if (!JS_GetProperty(aCx, obj, "name", &val)) {
        NS_ERROR("No name property on supposed error object");
      } else if (val.isString()) {
        if (!name.init(aCx, val.toString())) {
          NS_WARNING("couldn't initialize string");
        }
      }

      data = TCPError(name);
    }
  } else {
    NS_ERROR("Unexpected JS value encountered");
    FireInteralError(this, __LINE__);
    return NS_ERROR_FAILURE;
  }
  mozilla::unused <<
      PTCPSocketParent::SendCallback(nsString(aType), data,
                                     nsString(aReadyState));
  return NS_OK;
}

NS_IMETHODIMP
MobileMessageManager::Send(JS::Handle<JS::Value> aNumber,
                           const nsAString& aMessage,
                           JS::Handle<JS::Value> aSendParams,
                           JSContext* aCx,
                           uint8_t aArgc,
                           JS::MutableHandle<JS::Value> aReturn)
{
  if (!aNumber.isString() &&
      !(aNumber.isObject() && JS_IsArrayObject(aCx, &aNumber.toObject()))) {
    return NS_ERROR_INVALID_ARG;
  }

  nsresult rv;
  nsIScriptContext* sc = GetContextForEventHandlers(&rv);
  NS_ENSURE_SUCCESS(rv, rv);
  NS_ENSURE_STATE(sc);

  JS::Rooted<JSObject*> global(aCx, JS::CurrentGlobalOrNull(aCx));

  mozilla::Maybe<JSAutoCompartment> ac;
  if (!global) {
    global = sc->GetWindowProxy();
    ac.construct(aCx, global);
  }

  nsCOMPtr<nsISmsService> smsService = do_GetService(SMS_SERVICE_CONTRACTID);
  NS_ENSURE_TRUE(smsService, NS_ERROR_FAILURE);

  // Use the default one unless |aSendParams.serviceId| is available.
  uint32_t serviceId;
  rv = smsService->GetSmsDefaultServiceId(&serviceId);
  NS_ENSURE_SUCCESS(rv, rv);

  if (aArgc == 3) {
    JS::Rooted<JS::Value> param(aCx, aSendParams);
    RootedDictionary<SmsSendParameters> sendParams(aCx);
    if (!sendParams.Init(aCx, param)) {
      return NS_ERROR_TYPE_ERR;
    }
    if (sendParams.mServiceId.WasPassed()) {
      serviceId = sendParams.mServiceId.Value();
    }
  }

  if (aNumber.isString()) {
    JS::Rooted<JSString*> str(aCx, aNumber.toString());
    return Send(aCx, global, serviceId, str, aMessage, aReturn.address());
  }

  // Must be an array then.
  JS::Rooted<JSObject*> numbers(aCx, &aNumber.toObject());

  uint32_t size;
  if (!JS_GetArrayLength(aCx, numbers, &size)) {
    return NS_ERROR_FAILURE;
  }

  JS::AutoValueVector requests(aCx);
  if (!requests.resize(size)) {
    return NS_ERROR_FAILURE;
  }

  JS::Rooted<JS::Value> number(aCx);
  JS::Rooted<JSString*> str(aCx);
  for (uint32_t i = 0; i < size; ++i) {
    if (!JS_GetElement(aCx, numbers, i, &number)) {
      return NS_ERROR_INVALID_ARG;
    }

    str = JS::ToString(aCx, number);
    if (!str) {
      return NS_ERROR_FAILURE;
    }

    nsresult rv = Send(aCx, global, serviceId, str, aMessage, &requests[i]);
    NS_ENSURE_SUCCESS(rv, rv);
  }

  JS::Rooted<JSObject*> obj(aCx);
  obj = JS_NewArrayObject(aCx, requests.length(), requests.begin());
  if (!obj) {
    return NS_ERROR_FAILURE;
  }

  aReturn.setObject(*obj);
  return NS_OK;
}