private void ExpandParentWindow()
{
if( _currentState != AutoHideState.Collapsed ) return;
_currentState = AutoHideState.Opening;
if( _mode.IsHorizontalCollapse() )
{
AnimateTransition( Window.LeftProperty,
_mode == AutoHideMode.CollapseRight ?
_params.CollapsedWidth - _originalParentSize.Width : 0,
Window.WidthProperty,
_originalParentSize.Width,
() => _currentState = AutoHideState.Visible );
}
else
{
AnimateTransition( Window.TopProperty,
_mode == AutoHideMode.CollapseRight ?
_params.CollapsedHeight - _originalParentSize.Height : 0,
Window.HeightProperty,
_originalParentSize.Height,
() => _currentState = AutoHideState.Visible );
}
}
/// <summary>
/// Initializing constructor
/// </summary>
/// <param name="parent">Reference to the parent window</param>
/// <param name="parameters">Auto-hider configuration settings</param>
public WindowAutoHider( Window parent, WindowAutoHiderParams parameters )
{
_parent = parent;
_mode = AutoHideMode.None;
_currentState = AutoHideState.Visible;
_params = parameters;
_dropHelper = new DropHelper( parent );
// This code may appear silly to an untrained eye, but if it's not here, even though 'parent.Left' has
// a valid value, when we try animate it we might get an exception because DoubleAnimation might read it
// as NaN. It's fine everywhere else, only the animation is screwed up.
parent.Left = parent.Left;
parent.Top = parent.Top;
}