improv miniwindow move

modules/core_styles/styles/windows.otui

@@ -23,7 +23,6 @@ MiniWindow < UIWindow
   margin.left: 6
   margin.right: 6
   move policy: free updated
-  focusable: false
   border-image:
     source: /core_styles/images/mini_window.png
     border: 4

src/framework/ui/uiverticallayout.cpp

@@ -36,7 +36,7 @@ void UIVerticalLayout::update()
     // sort by Y center
     std::sort(widgets.begin(), widgets.end(),
     [](const UIWidgetPtr& first, const UIWidgetPtr& second) -> bool {
-        return first->getRect().center().y < second->getRect().center().y;
+        return first->getY() < second->getY();
     });
 
     Point pos = parentWidget->getPosition();

src/framework/ui/uiwindow.cpp

@@ -135,6 +135,8 @@ bool UIWindow::onMouseRelease(const Point& mousePos, Fw::MouseButton button)
 {
     if(m_moving) {
         m_moving = false;
+        if(m_movePolicy == FREE_UPDATED_MOVE)
+            updateParentLayout();
         return true;
     }
     return UIWidget::onMouseRelease(mousePos, button);
@@ -144,8 +146,6 @@ bool UIWindow::onMouseMove(const Point& mousePos, const Point& mouseMoved)
 {
     if(m_moving) {
         moveTo(mousePos - m_movingReference);
-        if(m_movePolicy == FREE_UPDATED_MOVE)
-            updateParentLayout();
         return true;
     }
     return UIWidget::onMouseMove(mousePos, mouseMoved);