void OnListBoxItemLeftButtonDown(object sender, MouseButtonEventArgs e)
{
ReleaseCapturedItem();
var item = sender as ListBoxItem;
if (item != null)
{
var creator = item.Content as AffinitizedViewCreator;
if (creator != null)
{
if (creator.Category != null && creator.Category.DocumentFactoryName != null)
{
// Make sure the selected document category matches the category of the clicked-on item. Note
// that we do NOT do this for the "Any" category, since those views may be placed on any layout,
// not just the non-affinitized layouts.
this.SelectedDocumentCategory = creator.Category;
}
this.creatorBeingDragged = creator;
}
e.MouseDevice.Capture(item);
this.capturedItem = item;
this.dragStart = e.GetPosition(this);
this.originalScreenPos = this.capturedItem.PointToScreenIndependent(new Point(0, 0));
this.dragGhostWindow = null;
item.Cursor = Cursors.SizeAll;
item.MouseMove += OnListBoxItemMouseMove;
item.MouseLeftButtonUp += OnListBoxItemLeftButtonUp;
item.LostMouseCapture += OnListBoxItemLostCapture;
this.dragGhostWindow = new ViewDragGhostWindow
{
ViewName = ((AffinitizedViewCreator)item.Content).Command.DisplayName,
};
this.dragGhostWindow.Show();
UpdateHitState(this.originalScreenPos);
e.Handled = true;
}
}
void ReleaseCapturedItem()
{
if (this.capturedItem != null)
{
this.capturedItem.Cursor = null;
this.capturedItem.MouseMove -= OnListBoxItemMouseMove;
this.capturedItem.MouseLeftButtonUp -= OnListBoxItemLeftButtonUp;
this.capturedItem.LostMouseCapture -= OnListBoxItemLostCapture;
this.capturedItem = null;
this.creatorBeingDragged = null;
if (this.dragGhostWindow != null)
{
this.dragGhostWindow.Close();
this.dragGhostWindow = null;
}
if (this.dockTargetWindow != null)
{
this.dockTargetWindow.Close();
this.dockTargetWindow = null;
}
}
}
void ReleaseCapturedItem()
{
if (this.capturedItem != null)
{
this.capturedItem.Cursor = null;
this.capturedItem.MouseMove -= OnListBoxItemMouseMove;
this.capturedItem.MouseLeftButtonUp -= OnListBoxItemLeftButtonUp;
this.capturedItem.LostMouseCapture -= OnListBoxItemLostCapture;
this.capturedItem = null;
this.creatorBeingDragged = null;
if (this.dragGhostWindow != null)
{
this.dragGhostWindow.Close();
this.dragGhostWindow = null;
}
if (this.dockTargetWindow != null)
{
this.dockTargetWindow.Close();
this.dockTargetWindow = null;
}
}
}
void OnListBoxItemLeftButtonDown(object sender, MouseButtonEventArgs e)
{
ReleaseCapturedItem();
var item = sender as ListBoxItem;
if (item != null)
{
var creator = item.Content as AffinitizedViewCreator;
if (creator != null)
{
if (creator.Category != null && creator.Category.DocumentFactoryName != null)
{
// Make sure the selected document category matches the category of the clicked-on item. Note
// that we do NOT do this for the "Any" category, since those views may be placed on any layout,
// not just the non-affinitized layouts.
this.SelectedDocumentCategory = creator.Category;
}
this.creatorBeingDragged = creator;
}
e.MouseDevice.Capture(item);
this.capturedItem = item;
this.dragStart = e.GetPosition(this);
this.originalScreenPos = this.capturedItem.PointToScreenIndependent(new Point(0, 0));
this.dragGhostWindow = null;
item.Cursor = Cursors.SizeAll;
item.MouseMove += OnListBoxItemMouseMove;
item.MouseLeftButtonUp += OnListBoxItemLeftButtonUp;
item.LostMouseCapture += OnListBoxItemLostCapture;
this.dragGhostWindow = new ViewDragGhostWindow
{
ViewName = ((AffinitizedViewCreator)item.Content).Command.DisplayName,
};
this.dragGhostWindow.Show();
UpdateHitState(this.originalScreenPos);
e.Handled = true;
}
}