Pass property minimized from Client to Deleted

Ensures that we can access the minimized property in Effects
which want to not animate a closed, minimized window.

Make use of it in the Fade Effect Script to not fade out a
minimized window which would mean showing the actual not
visible window.

BUG: 303891
FIXED-IN: 4.9.0
REVIEW: 105647

deleted.cpp

@@ -36,6 +36,7 @@ Deleted::Deleted(Workspace* ws)
     , padding_right(0)
     , padding_bottom(0)
     , m_layer(UnknownLayer)
+    , m_minimized(false)
 {
 }
 
@@ -92,6 +93,7 @@ void Deleted::copyToDeleted(Toplevel* c)
             decorationPixmapTop = *client->topDecoPixmap();
             decorationPixmapBottom = *client->bottomDecoPixmap();
         }
+        m_minimized = client->isMinimized();
     }
 }
 

deleted.h

@@ -30,6 +30,7 @@ class Deleted
     : public Toplevel
 {
     Q_OBJECT
+    Q_PROPERTY(bool minimized READ isMinimized)
 public:
     static Deleted* create(Toplevel* c);
     // used by effects to keep the window around for e.g. fadeout effects when it's destroyed
@@ -62,6 +63,9 @@ public:
     virtual Layer layer() const {
         return m_layer;
     }
+    bool isMinimized() const {
+        return m_minimized;
+    }
 protected:
     virtual void debug(QDebug& stream) const;
     virtual bool shouldUnredirect() const;
@@ -87,6 +91,7 @@ private:
     QRect decoration_bottom;
     int padding_left, padding_top, padding_right, padding_bottom;
     Layer m_layer;
+    bool m_minimized;
 };
 
 inline void Deleted::refWindow()

effects/fade/package/contents/code/main.js

@@ -24,7 +24,7 @@ function isFadeWindow(w) {
     } else if (!w.deleted && effect.isGrabbed(w, Effect.WindowAddedGrabRole)) {
         return false;
     }
-    return w.onCurrentDesktop && !isLoginWindow(w) && !w.desktopWindow && !w.utility;
+    return w.onCurrentDesktop && !isLoginWindow(w) && !w.desktopWindow && !w.utility && !w.minimized;
 }
 
 function isLoginWindow(w) {