bool INavigatableControl.OnNavigationMovement(UINavigationInputMovement inputMovement) => false;
private void HandleInputMovement(List <UINavControl> allActiveControls, List <UINavControl> allActiveControlsExclSelected)
{
bool isTabPressed = _inputManager.IsKeyPressed(Keys.Tab);
bool isShiftKeyDown = _inputManager.IsKeyDown(Keys.LeftShift) || _inputManager.IsKeyDown(Keys.RightShift);
if (_inputManager.HasGamePad && _inputManager.DefaultGamePad != null)
{
var gamePad = _inputManager.DefaultGamePad;
if (gamePad.IsButtonPressed(GamePadButton.LeftShoulder))
{
// Treat as shift + tab
isTabPressed = true;
isShiftKeyDown = true;
}
else if (gamePad.IsButtonPressed(GamePadButton.RightShoulder))
{
// Treat as tab
isTabPressed = true;
}
}
if (_selectedControl.Control != null && isTabPressed)
{
var navMmnt = new UINavigationInputMovement
{
InputType = isShiftKeyDown ? UINavigationInputType.ShiftTab : UINavigationInputType.Tab,
InputDirection = Vector2.Zero
};
if (_selectedControl.Control.OnNavigationMovement(navMmnt))
{
// Current control has handled the input
return;
}
}
// UI is in screen space where origin is top left corner of the screen, x-axis pointing left, y-axis pointing down
var inputDir = Vector2.Zero; // Vector2 is used since in the future we could possibly implement thumbstick controller input.
inputDir.X += _inputManager.IsKeyPressed(Keys.Left) ? -1 : 0;
inputDir.X += _inputManager.IsKeyPressed(Keys.Right) ? 1 : 0;
inputDir.Y += _inputManager.IsKeyPressed(Keys.Up) ? -1 : 0;
inputDir.Y += _inputManager.IsKeyPressed(Keys.Down) ? 1 : 0;
if (_inputManager.HasGamePad && _inputManager.DefaultGamePad != null)
{
var gamePad = _inputManager.DefaultGamePad;
inputDir.X += gamePad.IsButtonPressed(GamePadButton.PadLeft) ? -1 : 0;
inputDir.X += gamePad.IsButtonPressed(GamePadButton.PadRight) ? 1 : 0;
inputDir.Y += gamePad.IsButtonPressed(GamePadButton.PadUp) ? -1 : 0;
inputDir.Y += gamePad.IsButtonPressed(GamePadButton.PadDown) ? 1 : 0;
}
if (inputDir.LengthSquared() > 0)
{
inputDir.Normalize();
}
if (_selectedControl.Control != null && inputDir.LengthSquared() > 0)
{
var navMmnt = new UINavigationInputMovement
{
InputType = UINavigationInputType.Input,
InputDirection = inputDir
};
if (_selectedControl.Control.OnNavigationMovement(navMmnt))
{
// Current control has handled the input
return;
}
}
if (isTabPressed)
{
// Treat tabbing as left/right movement
float shiftValue = isShiftKeyDown ? -1 : 1;
inputDir.X += shiftValue * 1;
if (inputDir.LengthSquared() > 0)
{
inputDir.Normalize();
}
}
if (inputDir.LengthSquared() > 0)
{
if (_selectedControl.UIElement == null)
{
// Just pick the first control
if (allActiveControls.Count > 0)
{
// Sort top to bottom, left to right
allActiveControls.Sort((ctrl1, ctrl2) =>
{
// Use the top-left corner of the UI as the sorting position, as this should
// account for different sized UI
var ctrl1Pos = ctrl1.UIElement.WorldMatrix.TranslationVector;
float ctrl1Left = ctrl1Pos.X - (ctrl1.UIElement.RenderSize.X * 0.5f);
float ctrl1Top = ctrl1Pos.Y - (ctrl1.UIElement.RenderSize.Y * 0.5f);
var ctrl2Pos = ctrl2.UIElement.WorldMatrix.TranslationVector;
float ctrl2Left = ctrl2Pos.X - (ctrl2.UIElement.RenderSize.X * 0.5f);
float ctrl2Top = ctrl2Pos.Y - (ctrl2.UIElement.RenderSize.Y * 0.5f);
if (ctrl1Top < ctrl2Top)
{
return(-1);
}
else if (ctrl1Top > ctrl2Top)
{
return(1);
}
else
{
return(ctrl1Left.CompareTo(ctrl2Left));
}
});
SetControlAsSelected(allActiveControls[0]);
}
//else // Nothing to select
}
else if (allActiveControlsExclSelected.Count > 0)
{
var uiWorldMatrix = _selectedControl.UIElement.WorldMatrix;
var originUIPosition = uiWorldMatrix.TranslationVector.XY();
if (Math.Abs(inputDir.X) >= Math.Abs(inputDir.Y))
{
// Sort top to bottom, left to right
allActiveControls.Sort((ctrl1, ctrl2) =>
{
// Use the top-left corner of the UI as the sorting position, as this should
// account for different sized UI
var ctrl1Pos = ctrl1.UIElement.WorldMatrix.TranslationVector;
float ctrl1Left = ctrl1Pos.X - (ctrl1.UIElement.RenderSize.X * 0.5f);
float ctrl1Top = ctrl1Pos.Y - (ctrl1.UIElement.RenderSize.Y * 0.5f);
var ctrl2Pos = ctrl2.UIElement.WorldMatrix.TranslationVector;
float ctrl2Left = ctrl2Pos.X - (ctrl2.UIElement.RenderSize.X * 0.5f);
float ctrl2Top = ctrl2Pos.Y - (ctrl2.UIElement.RenderSize.Y * 0.5f);
if (ctrl1Top < ctrl2Top)
{
return(-1);
}
else if (ctrl1Top > ctrl2Top)
{
return(1);
}
else
{
return(ctrl1Left.CompareTo(ctrl2Left));
}
});
int curSelectedIndex = allActiveControls.IndexOf(x => x.Control == _selectedControl.Control);
int nextSelectedIndex = curSelectedIndex + (inputDir.X > 0 ? 1 : -1);
if (nextSelectedIndex < 0)
{
nextSelectedIndex = allActiveControls.Count - 1;
}
else if (nextSelectedIndex == allActiveControls.Count)
{
nextSelectedIndex = 0;
}
if (nextSelectedIndex != curSelectedIndex)
{
SetControlAsSelected(allActiveControls[nextSelectedIndex]);
}
}
else
{
// Sort left to right, top to bottom
allActiveControls.Sort((ctrl1, ctrl2) =>
{
// Use the top-left corner of the UI as the sorting position, as this should
// account for different sized UI
var ctrl1Pos = ctrl1.UIElement.WorldMatrix.TranslationVector;
float ctrl1Left = ctrl1Pos.X - (ctrl1.UIElement.RenderSize.X * 0.5f);
float ctrl1Top = ctrl1Pos.Y - (ctrl1.UIElement.RenderSize.Y * 0.5f);
var ctrl2Pos = ctrl2.UIElement.WorldMatrix.TranslationVector;
float ctrl2Left = ctrl2Pos.X - (ctrl2.UIElement.RenderSize.X * 0.5f);
float ctrl2Top = ctrl2Pos.Y - (ctrl2.UIElement.RenderSize.Y * 0.5f);
if (ctrl1Left < ctrl2Left)
{
return(-1);
}
else if (ctrl1Left > ctrl2Left)
{
return(1);
}
else
{
return(ctrl1Top.CompareTo(ctrl1Top));
}
});
int curSelectedIndex = allActiveControls.IndexOf(x => x.Control == _selectedControl.Control);
int nextSelectedIndex = curSelectedIndex + (inputDir.Y > 0 ? 1 : -1);
if (nextSelectedIndex < 0)
{
nextSelectedIndex = allActiveControls.Count - 1;
}
else if (nextSelectedIndex == allActiveControls.Count)
{
nextSelectedIndex = 0;
}
if (nextSelectedIndex != curSelectedIndex)
{
SetControlAsSelected(allActiveControls[nextSelectedIndex]);
}
}
}
_nextControlCandidates.Clear();
}
}