// Our Keyboard Handler. Ensure that the key that was pressed is something that we can handle.
public bool ProcessSessionEvents(object sender, KeyCommandEventArgs args)
{
if (null != args)
{
// ensure that there are no control keys with the keystroke and we only process up,down, left, right keys
if ((args.InputModifiers == Microsoft.MediaCenter.TVVM.InputModifiers.None) &&
(args.State == Microsoft.MediaCenter.TVVM.KeyCommandState.Down) && // CHECK IF WE NEED THIS
((args.Key == Microsoft.MediaCenter.TVVM.KeyHandlerKey.Up) ||
(args.Key == Microsoft.MediaCenter.TVVM.KeyHandlerKey.Down) ||
(args.Key == Microsoft.MediaCenter.TVVM.KeyHandlerKey.Left) ||
(args.Key == Microsoft.MediaCenter.TVVM.KeyHandlerKey.Right) ||
(args.Key == Microsoft.MediaCenter.TVVM.KeyHandlerKey.Return)))
{
_userInterface.ProcessKeyboardEvent(args);
// we know that these keys are handled, so return true
return(true);
}
}
return(false);
}
// Moving to a different cell results only in the audio stream switch. Pressing Enter/Ok causes the tune to happen.
public void ProcessKeyboardEvent(KeyCommandEventArgs args)
{
try
{
switch (args.Key)
{
// Move Left
case Microsoft.MediaCenter.TVVM.KeyHandlerKey.Left:
if (_selectionX > 0)
{
_selectionX--;
}
break;
// Move Right
case Microsoft.MediaCenter.TVVM.KeyHandlerKey.Right:
if (_selectionX < (_description.Columns - 1))
{
_selectionX++;
}
break;
// Move Up
case Microsoft.MediaCenter.TVVM.KeyHandlerKey.Up:
if (_selectionY > 0)
{
_selectionY--;
}
break;
// Move Down
case Microsoft.MediaCenter.TVVM.KeyHandlerKey.Down:
if (_selectionY < (_description.Rows - 1))
{
_selectionY++;
}
break;
// User hit OK/Enter. Tune to the channel and exit the Addin.
case Microsoft.MediaCenter.TVVM.KeyHandlerKey.Return:
// get the channel box
ChannelBox channelBox = _description.Lookup(_selectionX, _selectionY);
if (null != channelBox)
{
// check if this has a valid tune string
if (channelBox.TuneString != string.Empty)
{
// Start tuning request
_tuning.Tune(channelBox.TuneString, true);
// Call exit.
_addin.Exit();
return;
}
}
break;
}
UpdateDisplayAndAudio();
}
catch (Exception)
{
}
}
