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Commit 35ca6c81 authored by Sean Stout's avatar Sean Stout
Browse files

Add DisplayGroupListener interface 

This interface can be used to listen for addition, removal, or
modification of DisplayGroups.

Bug: 138328918
Test: make
Change-Id: I3a2f39838ab00808816366d2484190b401aabed0
parent 1ee02141

core/java/android/hardware/display/DisplayManagerInternal.java

+42 −0
Original line number Diff line number Diff line
@@ -465,4 +465,46 @@ public abstract class DisplayManagerInternal { 
    public interface DisplayTransactionListener {

        void onDisplayTransaction(Transaction t);

    }



    /**

     * Called when there are changes to {@link com.android.server.display.DisplayGroup

     * DisplayGroups}.

     */

    public interface DisplayGroupListener {

        /**

         * A new display group with the provided {@code groupId} was added.

         *

         * <ol>

         *     <li>The {@code groupId} is applied to all appropriate {@link Display displays}.

         *     <li>This method is called.

         *     <li>{@link android.hardware.display.DisplayManager.DisplayListener DisplayListeners}

         *     are informed of any corresponding changes.

         * </ol>

         */

        void onDisplayGroupAdded(int groupId);



        /**

         * The display group with the provided {@code groupId} was removed.

         *

         * <ol>

         *     <li>All affected {@link Display displays} have their group IDs updated appropriately.

         *     <li>{@link android.hardware.display.DisplayManager.DisplayListener DisplayListeners}

         *     are informed of any corresponding changes.

         *     <li>This method is called.

         * </ol>

         */

        void onDisplayGroupRemoved(int groupId);



        /**

         * The display group with the provided {@code groupId} has changed.

         *

         * <ol>

         *     <li>All affected {@link Display displays} have their group IDs updated appropriately.

         *     <li>{@link android.hardware.display.DisplayManager.DisplayListener DisplayListeners}

         *     are informed of any corresponding changes.

         *     <li>This method is called.

         * </ol>

         */

        void onDisplayGroupChanged(int groupId);

    }

}