private void Child_TopChanged(object sender, EventArgs e)
{
WindowControl windowControl = ( WindowControl )sender;
if (windowControl != null)
{
windowControl.Top = this.GetRestrictedTop(windowControl);
}
Canvas.SetTop(windowControl, windowControl.Top);
}
private void Child_LeftChanged(object sender, EventArgs e)
{
WindowControl windowControl = (WindowControl)sender;
if (windowControl != null)
{
windowControl.Left = this.GetRestrictedLeft(windowControl);
}
Canvas.SetLeft(windowControl, windowControl.Left);
}
private static object OnCoerceIsActive(DependencyObject d, object basevalue)
{
WindowControl w = d as WindowControl;
if (w != null && !w._setIsActiveInternal && !w.AllowPublicIsActiveChange)
{
throw new InvalidOperationException("Cannot set IsActive directly. This is handled by the underlying system");
}
return(basevalue);
}
private void Child_PreviewMouseLeftButtonDown(object sender, RoutedEventArgs e)
{
WindowControl windowControl = ( WindowControl )sender;
WindowControl modalWindow = this.GetModalWindow();
if (modalWindow == null)
{
this.SetNextActiveWindow(windowControl);
}
}
private void CenterChild(WindowControl windowControl)
{
windowControl.UpdateLayout();
if ((windowControl.ActualWidth != 0) && (windowControl.ActualHeight != 0))
{
windowControl.Left = (this.ActualWidth - windowControl.ActualWidth) / 2.0;
windowControl.Left += (windowControl.Margin.Left - windowControl.Margin.Right);
windowControl.Top = (this.ActualHeight - windowControl.ActualHeight) / 2.0;
windowControl.Top += (windowControl.Margin.Top - windowControl.Margin.Bottom);
}
}
private void BringToFront(WindowControl windowControl)
{
if (windowControl != null)
{
int maxZIndez = this.Children.OfType <WindowControl>().Max((x) => Canvas.GetZIndex(x));
Canvas.SetZIndex(windowControl, maxZIndez + 1);
windowControl.Focus();
this.SetActiveWindow(windowControl);
}
}
private void SetActiveWindow(WindowControl windowControl)
{
if (windowControl.IsActive)
{
return;
}
foreach (WindowControl window in this.Children)
{
window.SetIsActiveInternal(false);
}
windowControl.SetIsActiveInternal(true);
}
private static object OnCoerceWindowStyle(DependencyObject d, object basevalue)
{
if (basevalue == DependencyProperty.UnsetValue)
{
return(basevalue);
}
WindowControl windowControl = d as WindowControl;
if (windowControl == null)
{
return(basevalue);
}
return(windowControl.OnCoerceWindowStyle((WindowStyle)basevalue));
}
private void SetChildPos(WindowControl windowControl)
{
// A MessageBox with no X and Y will be centered.
// A ChildWindow with WindowStartupLocation == Center will be centered.
if (((windowControl is MessageBox) && (windowControl.Left == 0) && (windowControl.Top == 0)) ||
((windowControl is ChildWindow) && ((( ChildWindow )windowControl).WindowStartupLocation == WindowStartupLocation.Center)))
{
this.CenterChild(windowControl);
}
else
{
Canvas.SetLeft(windowControl, windowControl.Left);
Canvas.SetTop(windowControl, windowControl.Top);
}
}
private double GetRestrictedLeft(WindowControl windowControl)
{
if (windowControl.Left < 0)
{
return(0);
}
if (((windowControl.Left + windowControl.ActualWidth) > this.ActualWidth) && (this.ActualWidth != 0))
{
double x = this.ActualWidth - windowControl.ActualWidth;
return(x < 0 ? 0 : x);
}
return(windowControl.Left);
}
private static object OnCoerceCloseButtonVisibility(DependencyObject d, object basevalue)
{
if (basevalue == DependencyProperty.UnsetValue)
{
return(basevalue);
}
WindowControl windowControl = d as WindowControl;
if (windowControl == null)
{
return(basevalue);
}
return(windowControl.OnCoerceCloseButtonVisibility((Visibility)basevalue));
}
private double GetRestrictedTop(WindowControl windowControl)
{
if (windowControl.Top < 0)
{
return(0);
}
if (((windowControl.Top + windowControl.ActualHeight) > this.ActualHeight) && (this.ActualHeight != 0))
{
double y = this.ActualHeight - windowControl.ActualHeight;
return(y < 0 ? 0 : y);
}
return(windowControl.Top);
}
private void SetNextActiveWindow(WindowControl windowControl)
{
if (!this.IsLoaded)
{
return;
}
WindowControl modalWindow = this.GetModalWindow();
// Modal window is always in front
if (modalWindow != null)
{
this.BringToFront(modalWindow);
}
else if (windowControl != null)
{
this.BringToFront(windowControl);
}
else
{
this.BringToFront(this.Children.OfType <WindowControl>().FirstOrDefault((x) => x.Visibility == Visibility.Visible));
}
}
/// <summary>
/// Register and unregister to children events.
/// </summary>
protected override void OnVisualChildrenChanged(DependencyObject visualAdded, DependencyObject visualRemoved)
{
base.OnVisualChildrenChanged(visualAdded, visualRemoved);
if (visualAdded != null && !(visualAdded is WindowControl))
{
throw new InvalidOperationException("WindowContainer can only contain WindowControl types.");
}
if (visualRemoved != null)
{
WindowControl removedChild = ( WindowControl )visualRemoved;
removedChild.LeftChanged -= new EventHandler <EventArgs>(this.Child_LeftChanged);
removedChild.TopChanged -= new EventHandler <EventArgs>(this.Child_TopChanged);
removedChild.PreviewMouseLeftButtonDown -= new MouseButtonEventHandler(this.Child_PreviewMouseLeftButtonDown);
removedChild.IsVisibleChanged -= new DependencyPropertyChangedEventHandler(this.Child_IsVisibleChanged);
removedChild.IsKeyboardFocusWithinChanged -= new DependencyPropertyChangedEventHandler(this.Child_IsKeyboardFocusWithinChanged);
if (removedChild is ChildWindow)
{
(( ChildWindow )removedChild).IsModalChanged -= new EventHandler <EventArgs>(this.Child_IsModalChanged);
}
}
if (visualAdded != null)
{
WindowControl addedChild = ( WindowControl )visualAdded;
addedChild.LeftChanged += new EventHandler <EventArgs>(this.Child_LeftChanged);
addedChild.TopChanged += new EventHandler <EventArgs>(this.Child_TopChanged);
addedChild.PreviewMouseLeftButtonDown += new MouseButtonEventHandler(this.Child_PreviewMouseLeftButtonDown);
addedChild.IsVisibleChanged += new DependencyPropertyChangedEventHandler(this.Child_IsVisibleChanged);
addedChild.IsKeyboardFocusWithinChanged += new DependencyPropertyChangedEventHandler(this.Child_IsKeyboardFocusWithinChanged);
if (addedChild is ChildWindow)
{
(( ChildWindow )addedChild).IsModalChanged += new EventHandler <EventArgs>(this.Child_IsModalChanged);
}
}
}
public override void OnApplyTemplate()
{
base.OnApplyTemplate();
if( _windowControl != null )
{
_windowControl.HeaderDragDelta -= ( o, e ) => this.OnHeaderDragDelta( e );
_windowControl.HeaderIconDoubleClicked -= ( o, e ) => this.OnHeaderIconDoubleClick( e );
_windowControl.CloseButtonClicked -= ( o, e ) => this.OnCloseButtonClicked( e );
}
_windowControl = this.GetTemplateChild( PART_WindowControl ) as WindowControl;
if( _windowControl != null )
{
_windowControl.HeaderDragDelta += ( o, e ) => this.OnHeaderDragDelta( e );
_windowControl.HeaderIconDoubleClicked += ( o, e ) => this.OnHeaderIconDoubleClick( e );
_windowControl.CloseButtonClicked += ( o, e ) => this.OnCloseButtonClicked( e );
}
this.UpdateBlockMouseInputsPanel();
_windowRoot = this.GetTemplateChild( PART_WindowRoot ) as Grid;
if( _windowRoot != null )
{
_windowRoot.RenderTransform = _moveTransform;
}
_hasWindowContainer = ( VisualTreeHelper.GetParent( this ) as WindowContainer ) != null;
if( !_hasWindowContainer )
{
_parentContainer = VisualTreeHelper.GetParent( this ) as FrameworkElement;
if( _parentContainer != null )
{
_parentContainer.LayoutUpdated += ParentContainer_LayoutUpdated;
_parentContainer.SizeChanged += ParentContainer_SizeChanged;
//this is for XBAP applications only. When inside an XBAP the parent container has no height or width until it has loaded. Therefore
//we need to handle the loaded event and reposition the window.
if( System.Windows.Interop.BrowserInteropHelper.IsBrowserHosted )
{
_parentContainer.Loaded += ( o, e ) =>
{
ExecuteOpen();
};
}
}
this.Unloaded += new RoutedEventHandler( ChildWindow_Unloaded );
//initialize our modal background width/height
_modalLayer.Height = _parentContainer.ActualHeight;
_modalLayer.Width = _parentContainer.ActualWidth;
_root = this.GetTemplateChild( PART_Root ) as Grid;
#if VS2008
FocusVisualStyle = null;
#else
Style focusStyle = ( _root != null ) ? _root.Resources[ "FocusVisualStyle" ] as Style : null;
if( focusStyle != null )
{
Setter focusStyleDataContext = new Setter( Control.DataContextProperty, this );
focusStyle.Setters.Add( focusStyleDataContext );
FocusVisualStyle = focusStyle;
}
#endif
if( _root != null )
{
_root.Children.Add( _modalLayerPanel );
}
}
}
/// <summary>
/// Overrides the OnApplyTemplate method.
/// </summary>
public override void OnApplyTemplate()
{
base.OnApplyTemplate();
if( _windowControl != null )
{
_windowControl.HeaderDragDelta -= ( o, e ) => this.OnHeaderDragDelta( e );
_windowControl.HeaderIconDoubleClicked -= ( o, e ) => this.OnHeaderIconDoubleClicked( e );
_windowControl.CloseButtonClicked -= ( o, e ) => this.OnCloseButtonClicked( e );
}
_windowControl = this.GetTemplateChild( PART_WindowControl ) as WindowControl;
if( _windowControl != null )
{
_windowControl.HeaderDragDelta += ( o, e ) => this.OnHeaderDragDelta( e );
_windowControl.HeaderIconDoubleClicked += ( o, e ) => this.OnHeaderIconDoubleClicked( e );
_windowControl.CloseButtonClicked += ( o, e ) => this.OnCloseButtonClicked( e );
}
this.UpdateBlockMouseInputsPanel();
ChangeVisualState( _button.ToString(), true );
Button closeButton = GetMessageBoxButton( PART_CloseButton );
if( closeButton != null )
closeButton.IsEnabled = !object.Equals( _button, MessageBoxButton.YesNo );
Button okButton = GetMessageBoxButton( PART_OkButton );
if( okButton != null )
okButton.IsCancel = object.Equals( _button, MessageBoxButton.OK );
SetDefaultResult();
}
private double GetRestrictedTop( WindowControl windowControl )
{
if( windowControl.Top < 0 )
return 0;
if( ( ( windowControl.Top + windowControl.ActualHeight ) > this.ActualHeight ) && ( this.ActualHeight != 0 ) )
{
double y = this.ActualHeight - windowControl.ActualHeight;
return y < 0 ? 0 : y;
}
return windowControl.Top;
}
private double GetRestrictedLeft( WindowControl windowControl )
{
if( windowControl.Left < 0 )
return 0;
if( ( ( windowControl.Left + windowControl.ActualWidth ) > this.ActualWidth ) && ( this.ActualWidth != 0 ) )
{
double x = this.ActualWidth - windowControl.ActualWidth;
return x < 0 ? 0 : x;
}
return windowControl.Left;
}
private bool IsModalWindow( WindowControl windowControl )
{
return ( ( windowControl is MessageBox )
|| ( ( windowControl is ChildWindow ) && ( ( ChildWindow )windowControl ).IsModal ) );
}
private void SetActiveWindow( WindowControl windowControl )
{
foreach( WindowControl window in this.Children )
{
window.SetIsActiveInternal( false );
}
windowControl.SetIsActiveInternal( true );
}
private void ExpandWindowControl( WindowControl windowControl )
{
if( windowControl != null )
{
windowControl.Left = 0;
windowControl.Top = 0;
windowControl.Width = Math.Min( this.ActualWidth, windowControl.MaxWidth );
windowControl.Height = Math.Min( this.ActualHeight, windowControl.MaxHeight );
}
}
private void SetNextActiveWindow( WindowControl windowControl )
{
if( !this.IsLoaded )
return;
WindowControl modalWindow = this.GetModalWindow();
// Modal window is always in front
if( modalWindow != null )
{
this.BringToFront( modalWindow );
}
else if( windowControl != null )
{
this.BringToFront( windowControl );
}
else
{
this.BringToFront( this.Children.OfType<WindowControl>().FirstOrDefault( (x) => x.Visibility == Visibility.Visible ) );
}
}
private void Child_PreviewMouseLeftButtonDown(object sender, RoutedEventArgs e)
{
WindowControl windowControl = ( WindowControl )sender;
this.SetNextActiveWindow(windowControl);
}
private bool IsModalWindow(WindowControl windowControl)
{
return((windowControl is MessageBox) ||
((windowControl is ChildWindow) && (( ChildWindow )windowControl).IsModal));
}
private void BringToFront( WindowControl windowControl )
{
if( windowControl != null )
{
int maxZIndez = this.Children.OfType<WindowControl>().Max( ( x ) => Canvas.GetZIndex( x ) );
Canvas.SetZIndex( windowControl, maxZIndez + 1 );
windowControl.Focus();
this.SetActiveWindow( windowControl );
}
}
private bool IsModalWindow( WindowControl windowControl )
{
return ( ( ( windowControl is MessageBox ) && (windowControl.Visibility == Visibility.Visible) )
|| ( ( windowControl is ChildWindow ) && ( ( ChildWindow )windowControl ).IsModal && ( ( ChildWindow )windowControl).WindowState == WindowState.Open ) );
}
private bool IsModalWindow(WindowControl windowControl)
{
return(((windowControl is MessageBox) && (windowControl.Visibility == Visibility.Visible)) ||
((windowControl is ChildWindow) && (( ChildWindow )windowControl).IsModal && (( ChildWindow )windowControl).WindowState == WindowState.Open));
}
private void SetChildPos( WindowControl windowControl )
{
// A MessageBox with no X and Y will be centered.
// A ChildWindow with WindowStartupLocation == Center will be centered.
if( ( ( windowControl is MessageBox ) && ( windowControl.Left == 0 ) && ( windowControl.Top == 0 ) )
|| ( ( windowControl is ChildWindow ) && ( ( ( ChildWindow )windowControl ).WindowStartupLocation == WindowStartupLocation.Center ) ) )
{
this.CenterChild( windowControl );
}
else
{
Canvas.SetLeft( windowControl, windowControl.Left );
Canvas.SetTop( windowControl, windowControl.Top );
}
}
private void CenterChild( WindowControl windowControl )
{
if( ( windowControl.ActualWidth != 0 ) && ( windowControl.ActualHeight != 0 ) )
{
windowControl.Left = ( this.ActualWidth - windowControl.ActualWidth ) / 2.0;
windowControl.Top = ( this.ActualHeight - windowControl.ActualHeight ) / 2.0;
}
}
private void CenterChild( WindowControl windowControl )
{
if( ( windowControl.ActualWidth != 0 ) && ( windowControl.ActualHeight != 0 ) )
{
windowControl.Left = ( this.ActualWidth - windowControl.ActualWidth ) / 2.0;
windowControl.Left += (windowControl.Margin.Left - windowControl.Margin.Right);
windowControl.Top = ( this.ActualHeight - windowControl.ActualHeight ) / 2.0;
windowControl.Top += ( windowControl.Margin.Top - windowControl.Margin.Bottom );
}
}
