protected override IntPtr FilterMessage(IntPtr hwnd, int msg, IntPtr wParam, IntPtr lParam, ref bool handled)
{
switch (msg)
{
case Win32Helper.WM_NCLBUTTONDOWN: //Left button down on title -> start dragging over docking manager
if (wParam.ToInt32() == Win32Helper.HT_CAPTION)
{
_model.Descendents().OfType <LayoutDocumentPane>().First(p => p.ChildrenCount > 0 && p.SelectedContent != null).SelectedContent.IsActive = true;
handled = true;
}
break;
case Win32Helper.WM_NCRBUTTONUP:
if (wParam.ToInt32() == Win32Helper.HT_CAPTION)
{
if (OpenContextMenu())
{
handled = true;
}
if (_model.Root.Manager.ShowSystemMenu)
{
WindowChrome.GetWindowChrome(this).ShowSystemMenu = !handled;
}
else
{
WindowChrome.GetWindowChrome(this).ShowSystemMenu = false;
}
}
break;
}
return(base.FilterMessage(hwnd, msg, wParam, lParam, ref handled));
}
/// <summary>
/// Method is invoked to complete a drag & drop operation with a (new) docking position
/// by docking of the LayoutDocument <paramref name="floatingWindow"/> into this drop target.
/// </summary>
/// <param name="floatingWindow"></param>
protected override void Drop(LayoutDocumentFloatingWindow floatingWindow)
{
ILayoutDocumentPane targetModel = _targetPane.Model as ILayoutDocumentPane;
LayoutDocument documentActive = floatingWindow.Descendents().OfType <LayoutDocument>().FirstOrDefault();
switch (Type)
{
case DropTargetType.DocumentPaneDockBottom:
#region DropTargetType.DocumentPaneDockBottom
{
var parentModel = targetModel.Parent as ILayoutGroup;
var parentModelOrientable = targetModel.Parent as ILayoutOrientableGroup;
int insertToIndex = parentModel.IndexOfChild(targetModel);
if (parentModelOrientable.Orientation != System.Windows.Controls.Orientation.Vertical &&
parentModel.ChildrenCount == 1)
{
parentModelOrientable.Orientation = System.Windows.Controls.Orientation.Vertical;
}
if (parentModelOrientable.Orientation == System.Windows.Controls.Orientation.Vertical)
{
var layoutDocumentPaneGroup = floatingWindow.RootPanel as LayoutDocumentPaneGroup;
if (layoutDocumentPaneGroup != null &&
(layoutDocumentPaneGroup.Children.Count == 1 ||
layoutDocumentPaneGroup.Orientation == System.Windows.Controls.Orientation.Vertical))
{
var documentsToMove = layoutDocumentPaneGroup.Children.ToArray();
for (int i = 0; i < documentsToMove.Length; i++)
{
parentModel.InsertChildAt(insertToIndex + 1 + i, documentsToMove[i]);
}
}
else
{
parentModel.InsertChildAt(insertToIndex + 1, floatingWindow.RootPanel);
}
}
else
{
var targetModelAsPositionableElement = targetModel as ILayoutPositionableElement;
var newOrientedPanel = new LayoutDocumentPaneGroup()
{
Orientation = System.Windows.Controls.Orientation.Vertical,
DockWidth = targetModelAsPositionableElement.DockWidth,
DockHeight = targetModelAsPositionableElement.DockHeight,
};
parentModel.InsertChildAt(insertToIndex, newOrientedPanel);
newOrientedPanel.Children.Add(targetModel);
newOrientedPanel.Children.Add(floatingWindow.RootPanel);
}
}
break;
#endregion DropTargetType.DocumentPaneDockBottom
case DropTargetType.DocumentPaneDockTop:
#region DropTargetType.DocumentPaneDockTop
{
var parentModel = targetModel.Parent as ILayoutGroup;
var parentModelOrientable = targetModel.Parent as ILayoutOrientableGroup;
int insertToIndex = parentModel.IndexOfChild(targetModel);
if (parentModelOrientable.Orientation != System.Windows.Controls.Orientation.Vertical &&
parentModel.ChildrenCount == 1)
{
parentModelOrientable.Orientation = System.Windows.Controls.Orientation.Vertical;
}
if (parentModelOrientable.Orientation == System.Windows.Controls.Orientation.Vertical)
{
var layoutDocumentPaneGroup = floatingWindow.RootPanel as LayoutDocumentPaneGroup;
if (layoutDocumentPaneGroup != null &&
(layoutDocumentPaneGroup.Children.Count == 1 ||
layoutDocumentPaneGroup.Orientation == System.Windows.Controls.Orientation.Vertical))
{
var documentsToMove = layoutDocumentPaneGroup.Children.ToArray();
for (int i = 0; i < documentsToMove.Length; i++)
{
parentModel.InsertChildAt(insertToIndex + i, documentsToMove[i]);
}
}
else
{
parentModel.InsertChildAt(insertToIndex, floatingWindow.RootPanel);
}
}
else
{
var targetModelAsPositionableElement = targetModel as ILayoutPositionableElement;
var newOrientedPanel = new LayoutDocumentPaneGroup()
{
Orientation = System.Windows.Controls.Orientation.Vertical,
DockWidth = targetModelAsPositionableElement.DockWidth,
DockHeight = targetModelAsPositionableElement.DockHeight,
};
parentModel.InsertChildAt(insertToIndex, newOrientedPanel);
//the floating window must be added after the target modal as it could be raise a CollectGarbage call
newOrientedPanel.Children.Add(targetModel);
newOrientedPanel.Children.Insert(0, floatingWindow.RootPanel);
}
}
break;
#endregion DropTargetType.DocumentPaneDockTop
case DropTargetType.DocumentPaneDockLeft:
#region DropTargetType.DocumentPaneDockLeft
{
var parentModel = targetModel.Parent as ILayoutGroup;
var parentModelOrientable = targetModel.Parent as ILayoutOrientableGroup;
int insertToIndex = parentModel.IndexOfChild(targetModel);
if (parentModelOrientable.Orientation != System.Windows.Controls.Orientation.Horizontal &&
parentModel.ChildrenCount == 1)
{
parentModelOrientable.Orientation = System.Windows.Controls.Orientation.Horizontal;
}
if (parentModelOrientable.Orientation == System.Windows.Controls.Orientation.Horizontal)
{
var layoutDocumentPaneGroup = floatingWindow.RootPanel as LayoutDocumentPaneGroup;
if (layoutDocumentPaneGroup != null &&
(layoutDocumentPaneGroup.Children.Count == 1 ||
layoutDocumentPaneGroup.Orientation == System.Windows.Controls.Orientation.Horizontal))
{
var documentsToMove = layoutDocumentPaneGroup.Children.ToArray();
for (int i = 0; i < documentsToMove.Length; i++)
{
parentModel.InsertChildAt(insertToIndex + i, documentsToMove[i]);
}
}
else
{
parentModel.InsertChildAt(insertToIndex, floatingWindow.RootPanel);
}
}
else
{
var targetModelAsPositionableElement = targetModel as ILayoutPositionableElement;
var newOrientedPanel = new LayoutDocumentPaneGroup()
{
Orientation = System.Windows.Controls.Orientation.Horizontal,
DockWidth = targetModelAsPositionableElement.DockWidth,
DockHeight = targetModelAsPositionableElement.DockHeight,
};
parentModel.InsertChildAt(insertToIndex, newOrientedPanel);
//the floating window must be added after the target modal as it could be raise a CollectGarbage call
newOrientedPanel.Children.Add(targetModel);
newOrientedPanel.Children.Insert(0, floatingWindow.RootPanel);
}
}
break;
#endregion DropTargetType.DocumentPaneDockLeft
case DropTargetType.DocumentPaneDockRight:
#region DropTargetType.DocumentPaneDockRight
{
var parentModel = targetModel.Parent as ILayoutGroup;
var parentModelOrientable = targetModel.Parent as ILayoutOrientableGroup;
int insertToIndex = parentModel.IndexOfChild(targetModel);
if (parentModelOrientable.Orientation != System.Windows.Controls.Orientation.Horizontal &&
parentModel.ChildrenCount == 1)
{
parentModelOrientable.Orientation = System.Windows.Controls.Orientation.Horizontal;
}
if (parentModelOrientable.Orientation == System.Windows.Controls.Orientation.Horizontal)
{
var layoutDocumentPaneGroup = floatingWindow.RootPanel as LayoutDocumentPaneGroup;
if (layoutDocumentPaneGroup != null &&
(layoutDocumentPaneGroup.Children.Count == 1 ||
layoutDocumentPaneGroup.Orientation == System.Windows.Controls.Orientation.Horizontal))
{
var documentToMove = layoutDocumentPaneGroup.Children.ToArray();
for (int i = 0; i < documentToMove.Length; i++)
{
parentModel.InsertChildAt(insertToIndex + 1 + i, documentToMove[i]);
}
}
else
{
parentModel.InsertChildAt(insertToIndex + 1, floatingWindow.RootPanel);
}
}
else
{
var targetModelAsPositionableElement = targetModel as ILayoutPositionableElement;
var newOrientedPanel = new LayoutDocumentPaneGroup()
{
Orientation = System.Windows.Controls.Orientation.Horizontal,
DockWidth = targetModelAsPositionableElement.DockWidth,
DockHeight = targetModelAsPositionableElement.DockHeight,
};
parentModel.InsertChildAt(insertToIndex, newOrientedPanel);
newOrientedPanel.Children.Add(targetModel);
newOrientedPanel.Children.Add(floatingWindow.RootPanel);
}
}
break;
#endregion DropTargetType.DocumentPaneDockRight
case DropTargetType.DocumentPaneDockInside:
#region DropTargetType.DocumentPaneDockInside
{
var paneModel = targetModel as LayoutDocumentPane;
var layoutDocumentPaneGroup = floatingWindow.RootPanel as LayoutDocumentPaneGroup;
// A LayoutFloatingDocumentWindow can contain multiple instances of both Anchorables or Documents
// and we should drop these back into the DocumentPane if they are available
var allowedDropTypes = new[] { typeof(LayoutDocument), typeof(LayoutAnchorable) };
int i = _tabIndex == -1 ? 0 : _tabIndex;
foreach (var anchorableToImport in
layoutDocumentPaneGroup.Descendents().OfType <LayoutContent>()
.Where(item => allowedDropTypes.Contains(item.GetType())).ToArray())
{
paneModel.Children.Insert(i, anchorableToImport);
i++;
}
}
break;
#endregion DropTargetType.DocumentPaneDockInside
}
if (documentActive != null)
{
documentActive.IsActive = true;
}
base.Drop(floatingWindow);
}
/// <summary>
/// Method is invoked to complete a drag & drop operation with a (new) docking position
/// by docking of the LayoutDocument <paramref name="floatingWindow"/> into this drop target.
/// </summary>
/// <param name="floatingWindow"></param>
protected override void Drop(LayoutDocumentFloatingWindow floatingWindow)
{
ILayoutDocumentPane targetModel = _targetPane.Model as ILayoutDocumentPane;
LayoutDocument documentActive = floatingWindow.Descendents().OfType <LayoutDocument>().FirstOrDefault();
// ensure paneGroup
var paneGroup = targetModel.Parent as LayoutDocumentPaneGroup;
if (paneGroup == null)
{
var targetModelAsPositionableElement = targetModel as ILayoutPositionableElement;
var layoutGroup = targetModel.Parent as ILayoutGroup;
paneGroup = new LayoutDocumentPaneGroup()
{
Orientation = System.Windows.Controls.Orientation.Vertical,
DockWidth = targetModelAsPositionableElement.DockWidth,
DockHeight = targetModelAsPositionableElement.DockHeight,
};
paneGroup.Children.Add(targetModel);
layoutGroup.InsertChildAt(0, paneGroup);
}
var paneGroupOrientaion = paneGroup as ILayoutOrientableGroup;
switch (Type)
{
case DropTargetType.DocumentPaneDockBottom:
#region DropTargetType.DocumentPaneDockBottom
{
if (paneGroupOrientaion.Orientation != System.Windows.Controls.Orientation.Vertical)
{
paneGroup.Orientation = System.Windows.Controls.Orientation.Vertical;
}
var insertToIndex = paneGroup.IndexOfChild(targetModel);
if (insertToIndex == (paneGroup.Children.Count - 1))
{
insertToIndex = paneGroup.Children.Count;
}
var documentsToMove = floatingWindow.Children.ToArray();
for (int i = 0; i < documentsToMove.Length; i++)
{
var floatingChild = documentsToMove[i];
paneGroup.InsertChildAt(insertToIndex + i, floatingChild);
}
}
break;
#endregion DropTargetType.DocumentPaneDockBottom
case DropTargetType.DocumentPaneDockTop:
#region DropTargetType.DocumentPaneDockTop
{
if (paneGroupOrientaion.Orientation != System.Windows.Controls.Orientation.Vertical)
{
paneGroup.Orientation = System.Windows.Controls.Orientation.Vertical;
}
var insertToIndex = paneGroup.IndexOfChild(targetModel);
if (insertToIndex < 0)
{
insertToIndex = 0;
}
var documentsToMove = floatingWindow.Children.ToArray();
for (int i = 0; i < documentsToMove.Length; i++)
{
var floatingChild = documentsToMove[i];
paneGroup.InsertChildAt(insertToIndex + i, floatingChild);
}
}
break;
#endregion DropTargetType.DocumentPaneDockTop
case DropTargetType.DocumentPaneDockLeft:
#region DropTargetType.DocumentPaneDockLeft
{
if (paneGroupOrientaion.Orientation != System.Windows.Controls.Orientation.Horizontal)
{
paneGroup.Orientation = System.Windows.Controls.Orientation.Horizontal;
}
var insertToIndex = paneGroup.IndexOfChild(targetModel);
if (insertToIndex < 0)
{
insertToIndex = 0;
}
var documentsToMove = floatingWindow.Children.ToArray();
for (int i = 0; i < documentsToMove.Length; i++)
{
var floatingChild = documentsToMove[i];
paneGroup.InsertChildAt(insertToIndex + i, floatingChild);
}
}
break;
#endregion DropTargetType.DocumentPaneDockLeft
case DropTargetType.DocumentPaneDockRight:
#region DropTargetType.DocumentPaneDockRight
{
if (paneGroupOrientaion.Orientation != System.Windows.Controls.Orientation.Horizontal)
{
paneGroup.Orientation = System.Windows.Controls.Orientation.Horizontal;
}
var insertToIndex = paneGroup.IndexOfChild(targetModel);
if (insertToIndex == (paneGroup.Children.Count - 1))
{
insertToIndex = paneGroup.Children.Count;
}
var documentsToMove = floatingWindow.Children.ToArray();
for (int i = 0; i < documentsToMove.Length; i++)
{
var floatingChild = documentsToMove[i];
paneGroup.InsertChildAt(insertToIndex + i, floatingChild);
}
}
break;
#endregion DropTargetType.DocumentPaneDockRight
case DropTargetType.DocumentPaneDockInside:
#region DropTargetType.DocumentPaneDockInside
{
var paneModel = targetModel as LayoutDocumentPane;
var layoutDocumentPaneGroup = floatingWindow.RootPanel as LayoutDocumentPaneGroup;
// A LayoutFloatingDocumentWindow can contain multiple instances of both Anchorables or Documents
// and we should drop these back into the DocumentPane if they are available
var allowedDropTypes = new[] { typeof(LayoutDocument), typeof(LayoutAnchorable) };
int i = _tabIndex == -1 ? 0 : _tabIndex;
foreach (var anchorableToImport in
layoutDocumentPaneGroup.Descendents().OfType <LayoutContent>()
.Where(item => allowedDropTypes.Any(dropType => dropType.IsInstanceOfType(item))).ToArray())
{
paneModel.Children.Insert(i, anchorableToImport);
i++;
}
}
break;
#endregion DropTargetType.DocumentPaneDockInside
}
if (documentActive != null)
{
documentActive.IsActive = true;
}
base.Drop(floatingWindow);
}
