private void OnPreviewControlMouseLeave(object sender, MouseEventArgs e)
{
if (!PreviewControl.StaysOpen)
{
PreviewControl.TransitionToState(PreviewControl.State.Condensed);
}
}
private void OnPreviewControlMouseEnter(object sender, MouseEventArgs e)
{
if (PreviewControl.IsCondensed)
{
PreviewControl.TransitionToState(PreviewControl.State.Expanded);
}
}
private void TryShowPreviewBubbles()
{
nodeWasClicked = false;
// Always set old ZIndex to the last value, even if mouse is not over the node.
oldZIndex = NodeViewModel.StaticZIndex;
// There is no need run further.
if (IsPreviewDisabled())
{
return;
}
if (PreviewControl.IsInTransition) // In transition state, come back later.
{
return;
}
if (PreviewControl.IsHidden)
{
if (!previewControl.IsDataBound)
{
PreviewControl.BindToDataSource();
}
PreviewControl.TransitionToState(PreviewControl.State.Condensed);
}
Dispatcher.DelayInvoke(previewDelay, BringToFront);
}
private void OnNodeViewMouseMove(object sender, MouseEventArgs e)
{
if (Mouse.Captured == null)
{
return;
}
bool isInside = IsMouseInsideNodeOrPreview(e.GetPosition(this));
if (!isInside && PreviewControl != null && previewControl.IsCondensed)
{
PreviewControl.TransitionToState(PreviewControl.State.Hidden);
}
}
/// <summary>
/// Enables/disables preview control.
/// </summary>
internal void TogglePreviewControlAllowance()
{
previewEnabled = !previewEnabled;
if (previewEnabled == false && !PreviewControl.StaysOpen)
{
if (PreviewControl.IsExpanded)
{
PreviewControl.TransitionToState(PreviewControl.State.Condensed);
PreviewControl.TransitionToState(PreviewControl.State.Hidden);
}
else if (PreviewControl.IsCondensed)
{
PreviewControl.TransitionToState(PreviewControl.State.Hidden);
}
}
}
private void OnNodeViewMouseLeave(object sender, MouseEventArgs e)
{
ViewModel.ZIndex = oldZIndex;
// If mouse in over node/preview control or preview control is pined, we can not hide preview control.
if (IsMouseOver || PreviewControl.IsMouseOver || PreviewControl.StaysOpen ||
(Mouse.Captured is DragCanvas && IsMouseInsideNodeOrPreview(e.GetPosition(this))))
{
return;
}
// If it's expanded, then first condense it.
if (PreviewControl.IsExpanded)
{
PreviewControl.TransitionToState(PreviewControl.State.Condensed);
}
// If it's condensed, then try to hide it.
if (PreviewControl.IsCondensed && Mouse.Captured == null)
{
PreviewControl.TransitionToState(PreviewControl.State.Hidden);
}
}