private void OnPopupClosed()
{
m_CurrentPopup.Destroyed -= OnPopupClosed;
m_CurrentPopup.rootVisualElement.UnregisterCallback <KeyUpEvent>(OnKeyUp);
m_CurrentPopup = null;
m_PopupClosedTimestamp = DateTime.UtcNow;
}
private void OnTogglePopup()
{
// If the user click on the arrow button while the popup is opened
// the popup is then closed (because clicked outside) and immediately reopened
// To prevent this behavior we allow the popup to reopen only after a very short period of time after being closed
var deltaTime = DateTime.UtcNow - m_PopupClosedTimestamp;
if (m_CurrentPopup == null && deltaTime.TotalMilliseconds > 500)
{
m_CurrentPopup = ScriptableObject.CreateInstance <NotifyEditorWindow>();
m_CurrentPopup.hideFlags = HideFlags.HideAndDontSave;
if (m_PopupContent.parent != null)
{
m_PopupContent.parent.Remove(m_PopupContent);
}
m_CurrentPopup.Destroyed += OnPopupClosed;
m_CurrentPopup.rootVisualElement.AddStyleSheetPath("VFXToolbar");
m_CurrentPopup.rootVisualElement.Add(m_PopupContent);
m_CurrentPopup.rootVisualElement.AddToClassList("popup");
m_CurrentPopup.rootVisualElement.RegisterCallback <KeyUpEvent>(OnKeyUp);
OnOpenPopup();
var bounds = new Rect(GetPopupPosition(), localBound.size);
// Offset the bounds to align the popup with the real dropdown left edge
if (m_HasLeftSeparator)
{
bounds.xMin += 6;
}
m_CurrentPopup.ShowAsDropDown(bounds, GetPopupSize(), new[] { PopupLocation.BelowAlignLeft, PopupLocation.AboveAlignLeft });
m_CurrentPopup.minSize = GetPopupSize();
m_CurrentPopup.maxSize = m_CurrentPopup.minSize;
GetNextFocusable(null, m_PopupContent.Children(), false)?.Focus();
}
else if (m_CurrentPopup != null)
{
ClosePopup();
}
}
