/// <summary>
/// Gets called when the import file button is clicked.
/// This opens a file dialog to import a file.
/// If the import is succesful the program advances to the typing state.
/// </summary>
private void ButtonImportFile_Click(object sender, RoutedEventArgs e)
{
if (FileImporter.OnClickImportFile())
{
typer = new Typer();
keyboardHandler.ConnectToTyper(typer);
typer.LoadText(FileImporter.GetText());
typer.InitializeTypingState();
ChangeProgramState(ProgramState.typing);
}
}