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SampleModuleCS.cs
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SampleModuleCS.cs
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// Copyright (c) Microsoft Corporation. All rights reserved.
// Licensed under the MIT License.
using Microsoft.ReactNative;
using Microsoft.ReactNative.Managed;
using System;
using System.Diagnostics;
using System.Reflection;
using System.Threading.Tasks;
using Windows.System.Threading;
namespace SampleLibraryCS
{
class Point
{
public int x = 0;
public int y = 0;
};
// Sample ReactModule
[ReactModule]
internal sealed class SampleModuleCS
{
#region Initializer
[ReactInitializer]
public void Initialize(ReactContext _)
{
_timer = ThreadPoolTimer.CreatePeriodicTimer(new TimerElapsedHandler((timer) =>
{
TimedEvent?.Invoke(++_timerCount);
if (_timerCount == 5)
{
_timer?.Cancel();
}
}),
TimeSpan.FromMilliseconds(TimedEventIntervalMS));
}
~SampleModuleCS()
{
_timer?.Cancel();
}
#endregion
#region Constants
[ReactConstant]
public double NumberConstant => Math.PI;
[ReactConstant]
public string StringConstant => "Hello World";
[ReactConstantProvider]
public void ConstantsViaConstantsProvider(ReactConstantProvider provider)
{
provider.Add("NumberConstantViaProvider", Math.PI);
provider.Add("StringConstantViaProvider", "Hello World");
}
#endregion
#region Methods
[ReactMethod]
public void VoidMethod()
{
Debug.WriteLine($"{nameof(SampleModuleCS)}.{nameof(VoidMethod)}()");
}
[ReactMethod]
public void VoidMethodWithArgs(double arg)
{
Debug.WriteLine($"{nameof(SampleModuleCS)}.{nameof(VoidMethodWithArgs)}({arg})");
}
[ReactMethod]
public double ReturnMethod()
{
Debug.WriteLine($"{nameof(SampleModuleCS)}.{nameof(ReturnMethod)}()");
return Math.PI;
}
[ReactMethod]
public double ReturnMethodWithArgs(double arg)
{
Debug.WriteLine($"{nameof(SampleModuleCS)}.{nameof(ReturnMethodWithArgs)}({arg})");
return Math.PI;
}
#endregion
#region Methods using ReactCallbacks
[ReactMethod]
public void ExplicitCallbackMethod(Action<double> callback)
{
Debug.WriteLine($"{nameof(SampleModuleCS)}.{nameof(ExplicitCallbackMethod)}()");
callback(Math.PI);
}
[ReactMethod]
public void ExplicitCallbackMethodWithArgs(double arg, Action<double> callback)
{
Debug.WriteLine($"{nameof(SampleModuleCS)}.{nameof(ExplicitCallbackMethodWithArgs)}({arg})");
callback(Math.PI);
}
// Use callback order as with ReactPromise
[ReactMethod]
public void TwoCallbacksMethod(bool shouldSucceed, Action<string> onSuccess, Action<string> onFailure)
{
Debug.WriteLine($"{nameof(SampleModuleCS)}.{nameof(TwoCallbacksMethod)}({shouldSucceed})");
if (shouldSucceed)
{
onSuccess("TwoCallbacksMethod succeeded");
}
else
{
onFailure("TwoCallbacksMethod failed");
}
}
// Use callback order as with ReactPromise
[ReactMethod]
public async void TwoCallbacksAsyncMethod(bool shouldSucceed, Action<string> onSuccess, Action<string> onFailure)
{
Debug.WriteLine($"{nameof(SampleModuleCS)}.{nameof(TwoCallbacksAsyncMethod)}({shouldSucceed})");
await Task.Run(() => { });
if (shouldSucceed)
{
onSuccess("TwoCallbacksMethod succeeded");
}
else
{
onFailure("TwoCallbacksMethod failed");
}
}
// Use callback order as in "classic" ReactNative.
[ReactMethod]
public void ReverseTwoCallbacksMethod(bool shouldSucceed, Action<string> onFailure, Action<string> onSuccess)
{
Debug.WriteLine($"{nameof(SampleModuleCS)}.{nameof(ReverseTwoCallbacksMethod)}({shouldSucceed})");
if (shouldSucceed)
{
onSuccess("ReverseTwoCallbacksMethod succeeded");
}
else
{
onFailure("ReverseTwoCallbacksMethod failed");
}
}
// Use callback order as in "classic" ReactNative.
[ReactMethod]
public async void ReverseTwoCallbacksAsyncMethod(bool shouldSucceed, Action<string> onFailure, Action<string> onSuccess)
{
Debug.WriteLine($"{nameof(SampleModuleCS)}.{nameof(ReverseTwoCallbacksMethod)}({shouldSucceed})");
await Task.Run(() => { });
if (shouldSucceed)
{
onSuccess("ReverseTwoCallbacksMethod succeeded");
}
else
{
onFailure("ReverseTwoCallbacksMethod failed");
}
}
[ReactMethod]
public void ExplicitPromiseMethod(IReactPromise<double> result)
{
Debug.WriteLine($"{nameof(SampleModuleCS)}.{nameof(ExplicitPromiseMethod)}()");
try
{
result.Resolve(Math.PI);
}
catch (Exception ex)
{
result.Reject(new ReactError { Message = ex.Message });
}
}
[ReactMethod]
public void ExplicitPromiseMethodWithArgs(double arg, IReactPromise<double> result)
{
Debug.WriteLine($"{nameof(SampleModuleCS)}.{nameof(ExplicitPromiseMethodWithArgs)}({arg})");
try
{
result.Resolve(Math.PI);
}
catch (Exception ex)
{
result.Reject(new ReactError { Message = ex.Message });
}
}
[ReactMethod]
public async void NegateAsyncPromise(int x, IReactPromise<int> result)
{
bool isPosititve = await Task.Run(() => x >= 0);
Debug.WriteLine($"{nameof(SampleModuleCS)}.{nameof(NegateAsyncPromise)}({x})");
if (isPosititve)
{
result.Resolve(-x);
}
else
{
result.Reject(new ReactError { Message = "Already negative" });
}
}
#endregion
#region Synchronous Methods
[ReactSyncMethod]
public double SyncReturnMethod()
{
Debug.WriteLine($"{nameof(SampleModuleCS)}.{nameof(SyncReturnMethod)}()");
return Math.PI;
}
[ReactSyncMethod]
public double SyncReturnMethodWithArgs(double arg)
{
Debug.WriteLine($"{nameof(SampleModuleCS)}.{nameof(SyncReturnMethodWithArgs)}({arg})");
return Math.PI;
}
#endregion
#region Events
[ReactEvent("TimedEventCS")]
public Action<int> TimedEvent { get; set; }
#endregion
#region JS Functions
[ReactFunction("calcDistance", ModuleName = "SampleModuleCpp")]
public Action<Point, Point> CalcDistance = null;
[ReactMethod("callDistanceFunction")]
public void CallDistanceFunction(Point point1, Point point2)
{
Debug.WriteLine($"{nameof(SampleModuleCS)}.{nameof(CallDistanceFunction)}()");
CalcDistance(point1, point2);
}
#endregion
private ThreadPoolTimer _timer;
private int _timerCount = 0;
private const int TimedEventIntervalMS = 5000;
}
}