private MLResult RequestPrivilegeAsyncInternal(MLPrivileges.Id privilegeId, CallbackDelegate callback)
{
if (callback == null)
{
return(MLResult.Create(MLResult.Code.InvalidParam, "MLPrivileges.RequestPrivilegeAsync failed. Reason: Must send a valid callback."));
}
if (!this.currentRequests.ContainsKey(privilegeId))
{
IntPtr newRequest = IntPtr.Zero;
MLResult.Code resultCode = NativeBindings.MLPrivilegesRequestPrivilegeAsync(privilegeId, ref newRequest);
if (resultCode == MLResult.Code.Ok)
{
RequestPrivilegeQuery newQuery = new RequestPrivilegeQuery(callback, newRequest, privilegeId);
this.currentRequests.Add(privilegeId, newQuery);
}
return(MLResult.Create(resultCode));
}
else
{
return(MLResult.Create(MLResult.Code.Ok));
}
}
/// <summary>
/// Request the specified privileges. This may solicit consent from the end-user.
/// Note: The asynchronous callback occurs within the main thread.
/// </summary>
/// <param name="privilegeId">The privilege to request.</param>
/// <param name="callback">Callback to be executed when the privilege request has completed.</param>
/// <returns>
/// MLResult.Result will be <c>MLResult.Code.Ok</c> if the privilege request is in progress.
/// MLResult.Result will be <c>MLResult.Code.InvalidParam</c> if the callback is null.
/// MLResult.Result will be <c>MLResult.Code.UnspecifiedFailure</c> if the privilege system was not started.
/// Callback MLResult.Result will be <c>MLResult.Code.PrivilegeGranted</c> if the privilege is granted.
/// Callback MLResult.Result will be <c>MLResult.Code.PrivilegeNotGranted</c> if the privilege is denied.
/// </returns>
public static MLResult RequestPrivilegeAsync(MLPrivileges.Id privilegeId, CallbackDelegate callback)
{
try
{
if (MLPrivileges.IsValidInstance())
{
if (callback == null)
{
return(MLResult.Create(MLResult.Code.InvalidParam, "MLPrivileges.RequestPrivilegeAsync failed. Reason: Must send a valid callback."));
}
if (!_instance.currentRequests.ContainsKey(privilegeId))
{
IntPtr newRequest = IntPtr.Zero;
MLResult.Code resultCode = NativeBindings.MLPrivilegesRequestPrivilegeAsync(privilegeId, ref newRequest);
if (resultCode == MLResult.Code.Ok)
{
RequestPrivilegeQuery newQuery = new RequestPrivilegeQuery(callback, newRequest, privilegeId);
_instance.currentRequests.Add(privilegeId, newQuery);
}
return(MLResult.Create(resultCode));
}
else
{
return(MLResult.Create(MLResult.Code.Ok));
}
}
else
{
MLPluginLog.ErrorFormat("MLPrivileges.RequestPrivilegeAsync failed. Reason: No Instance for MLPrivileges.");
return(MLResult.Create(MLResult.Code.UnspecifiedFailure, "MLPrivileges.RequestPrivilegeAsync failed. Reason: No Instance for MLPrivileges."));
}
}
catch (System.EntryPointNotFoundException)
{
MLPluginLog.Error("MLPrivileges.RequestPrivilegeAsync failed. Reason: API symbols not found");
return(MLResult.Create(MLResult.Code.UnspecifiedFailure, "MLPrivileges.RequestPrivilegeAsync failed. Reason: API symbols not found."));
}
}
/// <summary>
/// Request the specified privilege asynchronously. This may solicit consent from the end-user.
/// This async override uses Tasks instead of a callback.
/// </summary>
/// <param name="privilegeId">The privilege to request.</param>
/// <returns>
/// MLResult.Result will be <c>MLResult.Code.PrivilegeGranted</c> if the privilege is granted.
/// MLResult.Result will be <c>MLResult.Code.PrivilegeNotGranted</c> if the privilege is denied.
/// MLResult.Result will be <c>MLResult.Code.UnspecifiedFailure</c> if the privilege system was not started.
/// </returns>
private async Task <MLResult> RequestPrivilegeAsyncInternal(MLPrivileges.Id privilegeId)
{
var taskCompletionSource = new TaskCompletionSource <MLResult>();
if (this.currentRequests.ContainsKey(privilegeId))
{
return(MLResult.Create(MLResult.Code.Ok));
}
IntPtr newRequest = IntPtr.Zero;
MLResult.Code resultCode = NativeBindings.MLPrivilegesRequestPrivilegeAsync(privilegeId, ref newRequest);
if (!MLResult.IsOK(resultCode))
{
return(MLResult.Create(resultCode));
}
RequestPrivilegeQuery newQuery = new RequestPrivilegeQuery((result, id) => taskCompletionSource.SetResult(result), newRequest, privilegeId);
this.currentRequests.Add(privilegeId, newQuery);
return(await taskCompletionSource.Task);
}
