Shrink-wrapped folders

Change-Id: Ida1b5d0bd4d39eabfde9f8a5bee0d4b6e9b33627

src/com/android/launcher2/DragLayer.java

@@ -42,6 +42,8 @@ public class DragLayer extends FrameLayout {
             new ArrayList<AppWidgetResizeFrame>();
     private AppWidgetResizeFrame mCurrentResizeFrame;
     private int mXDown, mYDown;
+    private Folder mCurrentFolder = null;
+    private Launcher mLauncher;
 
     /**
      * Used to create a new DragLayer from XML.
@@ -82,6 +84,18 @@ public class DragLayer extends FrameLayout {
                 }
             }
         }
+        if (mCurrentFolder != null) {
+            mCurrentFolder.getHitRect(hitRect);
+            int[] screenPos = new int[2];
+            View parent = (View) mCurrentFolder.getParent();
+            if (parent != null) {
+                parent.getLocationOnScreen(screenPos);
+                hitRect.offset(screenPos[0], screenPos[1]);
+                if (!hitRect.contains(x, y)) {
+                    mLauncher.closeFolder();
+                }
+            }
+        }
         return false;
     }
 
@@ -237,4 +251,12 @@ public class DragLayer extends FrameLayout {
 
         resizeFrame.snapToWidget(false);
     }
+
+    public void setLauncher(Launcher l) {
+        mLauncher = l;
+    }
+
+    public void setCurrentFolder(Folder f) {
+        mCurrentFolder = f;
+    }
 }