/*
* When the application is suspending we save the current room name, so
* we can come back to it in case of "tombstoning".
*/
private void App_Suspending(object sender, SuspendingEventArgs e)
{
ApplicationDataContainer Appsettings = ApplicationData.Current.LocalSettings;
Appsettings.Values["CurrentPage"] = _currentRoom.Title;
Appsettings.Values["TimeStamp"] = DateTime.Now.Hour;
ErrorMessage.DisplayErrorDialog("Suspending" + _currentRoom.Title);
}
/*
* Request access for the background task, before conducting business.
*/
private async void RequestBackgroundAccess()
{
var result = await BackgroundExecutionManager.RequestAccessAsync();
if (result == BackgroundAccessStatus.Denied)
{
//TODO
ErrorMessage.DisplayErrorDialog("Cannot Sense Room");
}
}
/*
* Navigates to createsurfaces page if an existing room is found, otherwise it shows
* and error prompt.
*/
private void ExistingRoom_Click(object sender, Windows.UI.Xaml.RoutedEventArgs e)
{
var name = RoomNameBox.Text;
Room room = DatabaseRepository.GetRoom(name);
if (room != null)
{
Frame.Navigate(typeof(CreateSurfacesPage), room);
}
else
{
ErrorMessage.DisplayErrorDialog("Room not found.");
}
}
/*
* Gets the users location when creating the room, the method has switch-cases depending on the
* access status. if we are allowed to use the position we create an instance of geolocator and locate
* the "rooms" position. Otherwise we use a default location value {0,0}
*/
public async void GetRoomLocation()
{
var accessStatus = await Geolocator.RequestAccessAsync();
try
{
switch (accessStatus)
{
case GeolocationAccessStatus.Allowed:
Geolocator geolocator = new Geolocator {
DesiredAccuracyInMeters = 50
};
// Subscribe to the PositionChanged event to get location updates.
geolocator.PositionChanged += OnPositionChanged;
var position = await geolocator.GetGeopositionAsync();
var myposition = position.Coordinate.Point;
LatiValue.Text = myposition.Position.Latitude.ToString();
LongtValue.Text = myposition.Position.Longitude.ToString();
break;
case GeolocationAccessStatus.Denied:
ErrorMessage.DisplayErrorDialog("Location access denied");
LatiValue.Text = "0.0";
LongtValue.Text = "0.0";
break;
case GeolocationAccessStatus.Unspecified:
ErrorMessage.DisplayErrorDialog("Some kind of error occured, please try again!");
LatiValue.Text = "0.0";
LongtValue.Text = "0.0";
break;
}
}
catch (Exception)
{
LatiValue.Text = "0.0";
LongtValue.Text = "0.0";
}
}
/*
* Here is the interesting part for creating new rooms. We start of by checking if we
* have gotten our location values, If we have then we continue on to check the input
* values and try to create the room. We get an status message back from the database
* if successful or else not (null).
*/
private void CreateBtn_Click(object sender, RoutedEventArgs e)
{
try
{
// Get position values.
double lat = double.Parse(LatiValue.Text);
double longt = double.Parse(LongtValue.Text);
}
catch
{
// Do nothing if incorrect position values!
return;
}
// Check if title already exists!
if (!IsTitleAllowed(Title.Text))
{
ErrorMessage.DisplayErrorDialog("Please, check yo title again!");
return;
}
// If is empty
if (Description.Text == "")
{
ErrorMessage.DisplayErrorDialog("Please, check yo description again!");
return;
}
// Creates the room if it doesn't exist
var room = DatabaseRepository.CreateRoom(Title.Text, Description.Text,
0.0, double.Parse(LatiValue.Text), double.Parse(LongtValue.Text));
// Navigate to next page if successful
if (room != null)
{
Frame.Navigate(typeof(CreateSurfacesPage), room);
}
else
{
ErrorMessage.DisplayErrorDialog("Error, room probably already exists!");
}
}
