Merge \\"Tweaks to DragAndDropPermissions behavior\\" into nyc-dev am: 22faa5ddb1

am: 072ce0c29c

Change-Id: Iee2afec7bd3b6d6a81ce179df9e52a9e20bc1b72

api/current.txt

@@ -40999,8 +40999,11 @@ package android.view {
     field public static final android.os.Parcelable.Creator<android.view.Display.Mode> CREATOR;
   }
 
-  public final class DragAndDropPermissions {
+  public final class DragAndDropPermissions implements android.os.Parcelable {
+    method public int describeContents();
     method public void release();
+    method public void writeToParcel(android.os.Parcel, int);
+    field public static final android.os.Parcelable.Creator<android.view.DragAndDropPermissions> CREATOR;
   }
 
   public class DragEvent implements android.os.Parcelable {

api/system-current.txt

@@ -44103,8 +44103,11 @@ package android.view {
     field public static final android.os.Parcelable.Creator<android.view.Display.Mode> CREATOR;
   }
 
-  public final class DragAndDropPermissions {
+  public final class DragAndDropPermissions implements android.os.Parcelable {
+    method public int describeContents();
     method public void release();
+    method public void writeToParcel(android.os.Parcel, int);
+    field public static final android.os.Parcelable.Creator<android.view.DragAndDropPermissions> CREATOR;
   }
 
   public class DragEvent implements android.os.Parcelable {

api/test-current.txt

@@ -41079,8 +41079,11 @@ package android.view {
     field public static final android.os.Parcelable.Creator<android.view.Display.Mode> CREATOR;
   }
 
-  public final class DragAndDropPermissions {
+  public final class DragAndDropPermissions implements android.os.Parcelable {
+    method public int describeContents();
     method public void release();
+    method public void writeToParcel(android.os.Parcel, int);
+    field public static final android.os.Parcelable.Creator<android.view.DragAndDropPermissions> CREATOR;
   }
 
   public class DragEvent implements android.os.Parcelable {

core/java/android/view/DragAndDropPermissions.java

@@ -16,12 +16,14 @@
 
 package android.view;
 
+import android.app.Activity;
 import android.app.ActivityManagerNative;
 import android.os.IBinder;
+import android.os.Parcel;
+import android.os.Parcelable;
 import android.os.RemoteException;
-import com.android.internal.view.IDragAndDropPermissions;
-import dalvik.system.CloseGuard;
 
+import com.android.internal.view.IDragAndDropPermissions;
 
 /**
  * {@link DragAndDropPermissions} controls the access permissions for the content URIs associated
@@ -33,20 +35,27 @@ import dalvik.system.CloseGuard;
  * Which permissions are granted is defined by the set of flags passed to {@link
  * View#startDragAndDrop(android.content.ClipData, View.DragShadowBuilder, Object, int)
  * View.startDragAndDrop} by the app that started the drag operation.
+ * </p>
  * <p>
  * The life cycle of the permissions is bound to the activity used to call {@link
  * android.app.Activity#requestDragAndDropPermissions(DragEvent) requestDragAndDropPermissions}. The
  * permissions are revoked when this activity is destroyed, or when {@link #release()} is called,
  * whichever occurs first.
+ * </p>
+ * <p>
+ * If you anticipate that your application will receive a large number of drops (e.g. document
+ * editor), you should try to call {@link #release()} on the obtained permissions as soon as they
+ * are no longer required. Permissions can be added to your activity's
+ * {@link Activity#onSaveInstanceState} bundle and later retrieved in order to manually release
+ * the permissions once they are no longer needed.
+ * </p>
  */
-public final class DragAndDropPermissions {
+public final class DragAndDropPermissions implements Parcelable {
 
     private final IDragAndDropPermissions mDragAndDropPermissions;
 
     private IBinder mPermissionOwnerToken;
 
-    private final CloseGuard mCloseGuard = CloseGuard.get();
-
     /**
      * Create a new {@link DragAndDropPermissions} object to control the access permissions for
      * content URIs associated with {@link DragEvent}.
@@ -79,7 +88,6 @@ public final class DragAndDropPermissions {
         } catch (RemoteException e) {
             return false;
         }
-        mCloseGuard.open("release");
         return true;
     }
 
@@ -96,7 +104,6 @@ public final class DragAndDropPermissions {
         } catch (RemoteException e) {
             return false;
         }
-        mCloseGuard.open("release");
         return true;
     }
 
@@ -109,18 +116,34 @@ public final class DragAndDropPermissions {
             mPermissionOwnerToken = null;
         } catch (RemoteException e) {
         }
-        mCloseGuard.close();
+    }
+
+    public static final Parcelable.Creator<DragAndDropPermissions> CREATOR =
+            new Parcelable.Creator<DragAndDropPermissions> () {
+        @Override
+        public DragAndDropPermissions createFromParcel(Parcel source) {
+            return new DragAndDropPermissions(source);
+        }
+
+        @Override
+        public DragAndDropPermissions[] newArray(int size) {
+            return new DragAndDropPermissions[size];
+        }
+    };
+
+    @Override
+    public int describeContents() {
+        return 0;
     }
 
     @Override
-    protected void finalize() throws Throwable {
-        try {
-            if (mCloseGuard != null) {
-                mCloseGuard.warnIfOpen();
-            }
-            release();
-        } finally {
-            super.finalize();
-        }
+    public void writeToParcel(Parcel destination, int flags) {
+        destination.writeStrongInterface(mDragAndDropPermissions);
+        destination.writeStrongBinder(mPermissionOwnerToken);
+    }
+
+    private DragAndDropPermissions(Parcel in) {
+        mDragAndDropPermissions = IDragAndDropPermissions.Stub.asInterface(in.readStrongBinder());
+        mPermissionOwnerToken = in.readStrongBinder();
     }
 }