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Telephony.cs
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Telephony.cs
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/*
* Copyright (c) 2016 Samsung Electronics Co., Ltd All Rights Reserved
*
* Licensed under the Apache License, Version 2.0 (the License);
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an AS IS BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
using System;
using System.Collections.Generic;
using System.Runtime.InteropServices;
using static Interop.Telephony;
namespace Tizen.Telephony
{
/// <summary>
/// Enumeration for the telephony states.
/// </summary>
/// <since_tizen> 3 </since_tizen>
public enum State
{
/// <summary>
/// The telephony state is not ready.
/// </summary>
NotReady,
/// <summary>
/// The telephony state is ready.
/// </summary>
Ready,
/// <summary>
/// Unavailable.
/// </summary>
Unavailable
};
/// <summary>
/// Enumeration for the preferred voice call subscription.
/// </summary>
/// <since_tizen> 3 </since_tizen>
public enum CallPreferredVoiceSubscription
{
/// <summary>
/// Unknown status.
/// </summary>
Unknown = -1,
/// <summary>
/// Current network.
/// </summary>
CurrentNetwork = 0,
/// <summary>
/// Ask Always.
/// </summary>
AskAlways,
/// <summary>
/// SIM 1.
/// </summary>
Sim1,
/// <summary>
/// SIM 2.
/// </summary>
Sim2
};
/// <summary>
/// This class provides APIs to initialize and deinitialize the framework.
/// It also provides APIs to get the SlotHandles, which can then be used to get other Network/Sim/Call/Modem information.
/// </summary>
/// <since_tizen> 3 </since_tizen>
public static class Manager
{
internal static List<SlotHandle> _telephonyHandle = new List<SlotHandle>();
private static HandleList _handleList;
private static bool _isInitialized = false;
private static event EventHandler<StateEventArgs> _stateChanged;
private static StateChangedCallback stateDelegate = delegate(State state, IntPtr userData)
{
StateEventArgs args = new StateEventArgs(state);
_stateChanged?.Invoke(null, args);
};
/// <summary>
/// The event handler to be invoked when the telephony state changes.
/// </summary>
/// <since_tizen> 3 </since_tizen>
public static event EventHandler<StateEventArgs> StateChanged
{
add
{
if (_stateChanged == null)
{
Interop.Telephony.TelephonyError error = Interop.Telephony.TelephonySetStateChangedCb(stateDelegate, IntPtr.Zero);
if (error != TelephonyError.None)
{
Log.Error(LogTag, "Add StateChanged Failed with Error: " + error);
}
else
{
_stateChanged += value;
}
}
}
remove
{
_stateChanged -= value;
if (_stateChanged == null)
{
Interop.Telephony.TelephonyError error = Interop.Telephony.TelephonyUnsetStateChangedCb(stateDelegate);
if (error != TelephonyError.None)
{
Log.Error(LogTag, "Remove StateChanged Failed with Error: " + error);
}
}
}
}
/// <summary>
/// Acquires the telephony state value.
/// </summary>
/// <since_tizen> 3 </since_tizen>
/// <value>
/// The state value of telephony.
/// </value>
public static State CurrentState
{
get
{
State state = State.NotReady;
TelephonyError error = Interop.Telephony.TelephonyGetState(out state);
if (error != TelephonyError.None)
{
Tizen.Log.Error(Interop.Telephony.LogTag, "GetState Failed with Error " + error);
return State.Unavailable;
}
return state;
}
}
/// <summary>
/// Acquires the number of available handles to use the telephony API.
/// </summary>
/// <since_tizen> 3 </since_tizen>
/// <returns>
/// A list of telephony handles.
/// You will get 2 SlotHandles in case of the dual SIM device.
/// Where, SlotHandle at Index '0' represents the primary SIM and Index '1' represents the secondary SIM.
/// </returns>
/// <feature>http://tizen.org/feature/network.telephony</feature>
/// <exception cref="NotSupportedException">The required feature is not supported.</exception>
/// <exception cref="InvalidOperationException">
/// This exception will be generated in the following cases:
/// 1. The system is out of memory.
/// 2. If the operation is not supported on the device.
/// 3. If the operation failed.
/// </exception>
public static IEnumerable<SlotHandle> Init()
{
//DeInitialize Previous Handles if present
if (_isInitialized)
{
Deinit();
}
TelephonyError err = Interop.Telephony.TelephonyInit(out _handleList);
if (err != TelephonyError.None)
{
Exception e = ExceptionFactory.CreateException(err);
// Check if error is Invalid Parameter then hide the error
if (e is ArgumentException)
{
e = new InvalidOperationException("Internal Error Occured");
}
throw e;
}
int offset = 0;
for (int i = 0; i < _handleList.Count; i++)
{
_telephonyHandle.Add(new SlotHandle(Marshal.ReadIntPtr(_handleList.HandleArrayPointer, offset)));
offset += Marshal.SizeOf(_handleList.HandleArrayPointer);
}
_isInitialized = true;
//Tizen.Log.Info(Interop.Telephony.LogTag, "Returning the number of sims " + _handleList.Count);
return _telephonyHandle;
}
/// <summary>
/// Deinitializes the telephony handles.
/// </summary>
/// <since_tizen> 3 </since_tizen>
/// <feature>http://tizen.org/feature/network.telephony</feature>
/// <exception cref="NotSupportedException">The required feature is not supported.</exception>
/// <exception cref="InvalidOperationException">
/// This exception can be generated in the following cases:
/// 1. If the operation is not supported on the device.
/// 2. If the operation failed.
/// </exception>
public static void Deinit()
{
TelephonyError error = Interop.Telephony.TelephonyDeinit(ref _handleList);
if (error != TelephonyError.None)
{
Exception e = ExceptionFactory.CreateException(error);
// Check if error is Invalid Parameter then hide the error
if (e is ArgumentException)
{
e = new InvalidOperationException("Internal Error Occured");
}
throw e;
}
_isInitialized = false;
_telephonyHandle.Clear();
}
internal static SlotHandle FindHandle(IntPtr handle)
{
SlotHandle temp = _telephonyHandle[0];
foreach (SlotHandle simHandle in _telephonyHandle)
{
if (simHandle._handle == handle)
{
temp = simHandle;
}
}
return temp;
}
}
}