VisualElement GetPanelContent(Editor editor)
{
if (editor == null)
{
return(null);
}
var root = editor.CreateInspectorGUI();
if (root != null)
{
return(root);
}
// If the Editor does not provide an OnInspectorGUI, try to fall back to a toolbar.
var inspector = editor.GetType().GetMethod("OnInspectorGUI",
BindingFlags.Instance | BindingFlags.Public | BindingFlags.NonPublic);
if (inspector == null || inspector.DeclaringType != editor.GetType())
{
if (editor is ICreateToolbar toolbar)
{
return(EditorToolbar.CreateOverlay(toolbar.toolbarElements, containerWindow));
}
if (editor is ICreateHorizontalToolbar horizontal)
{
return(horizontal.CreateHorizontalToolbarContent());
}
if (editor is ICreateVerticalToolbar vertical)
{
return(vertical.CreateVerticalToolbarContent());
}
}
return(new IMGUIContainer(editor.OnInspectorGUI));
}
// As a rule, Overlays should be compatible with toolbars or not. This class is an exception, hence the
// possibility for ICreateToolbar implementations to return null.
public OverlayToolbar CreateHorizontalToolbarContent()
{
var root = new OverlayToolbar();
if (m_ContextEditor is ICreateHorizontalToolbar ctx)
{
root.Add(ctx.CreateHorizontalToolbarContent());
}
else if (m_ContextEditor is ICreateToolbar toolbar)
{
root.Add(EditorToolbar.CreateOverlay(toolbar.toolbarElements, containerWindow));
}
if (m_ToolEditor is ICreateHorizontalToolbar tool)
{
root.Add(tool.CreateHorizontalToolbarContent());
}
else if (m_ToolEditor is ICreateToolbar toolbar)
{
root.Add(EditorToolbar.CreateOverlay(toolbar.toolbarElements, containerWindow));
}
return(root);
}