Merge "Add hidden APIs for number blocking which will be used by the system." into nyc-dev

        return res != null && res.getBoolean(RES_CAN_BLOCK_NUMBERS, false);

    }

    /**

     * <p>

     * The contract between the blockednumber provider and the system.

     * </p>

     * <p>This is a wrapper over {@link BlockedNumberContract} that also manages the blocking

     * behavior when the user contacts emergency services. See

     * {@link #notifyEmergencyContact(Context)} for details. All methods are protected by

     * {@link android.Manifest.permission#READ_BLOCKED_NUMBERS} and

     * {@link android.Manifest.permission#WRITE_BLOCKED_NUMBERS} appropriately which ensure that

     * only system can access the methods defined here.

     * </p>

     * @hide

     */

    public static class SystemContract {

        /**

         * A protected broadcast intent action for letting components with

         * {@link android.Manifest.permission#READ_BLOCKED_NUMBERS} know that the block suppressal

         * status as returned by {@link #getBlockSuppressalStatus(Context)} has been updated.

         */

        public static final String ACTION_BLOCK_SUPPRESSAL_STATE_CHANGED =

                "android.provider.action.BLOCK_SUPPRESSAL_STATE_CHANGED";

        public static final String METHOD_NOTIFY_EMERGENCY_CONTACT = "notify_emergency_contact";

        public static final String METHOD_END_BLOCK_SUPPRESSAL = "end_block_suppressal";

        public static final String METHOD_SHOULD_SYSTEM_BLOCK_NUMBER = "should_system_block_number";

        public static final String METHOD_GET_BLOCK_SUPPRESSAL_STATUS =

                "get_block_suppresal_status";

        public static final String RES_IS_BLOCKING_SUPPRESSED = "blocking_suppressed";

        public static final String RES_BLOCKING_SUPPRESSED_UNTIL_TIMESTAMP =

                "blocking_suppressed_until_timestamp";

        /**

         * Notifies the provider that emergency services were contacted by the user.

         * <p> This results in {@link #shouldSystemBlockNumber} returning {@code false} independent

         * of the contents of the provider for a duration defined by

         * {@link android.telephony.CarrierConfigManager#KEY_DURATION_BLOCKING_DISABLED_AFTER_EMERGENCY_INT}

         * the provider unless {@link #endBlockSuppressal(Context)} is called.

         */

        public static void notifyEmergencyContact(Context context) {

            context.getContentResolver().call(

                    AUTHORITY_URI, METHOD_NOTIFY_EMERGENCY_CONTACT, null, null);

        }

        /**

         * Notifies the provider to disable suppressing blocking. If emergency services were not

         * contacted recently at all, calling this method is a no-op.

         */

        public static void endBlockSuppressal(Context context) {

            context.getContentResolver().call(

                    AUTHORITY_URI, METHOD_END_BLOCK_SUPPRESSAL, null, null);

        }

        /**

         * Returns {@code true} if {@code phoneNumber} is blocked taking

         * {@link #notifyEmergencyContact(Context)} into consideration. If emergency services have

         * not been contacted recently, this method is equivalent to

         * {@link #isBlocked(Context, String)}.

         */

        public static boolean shouldSystemBlockNumber(Context context, String phoneNumber) {

            final Bundle res = context.getContentResolver().call(

                    AUTHORITY_URI, METHOD_SHOULD_SYSTEM_BLOCK_NUMBER, phoneNumber, null);

            return res != null && res.getBoolean(RES_NUMBER_IS_BLOCKED, false);

        }

        public static BlockSuppressalStatus getBlockSuppressalStatus(Context context) {

            final Bundle res = context.getContentResolver().call(

                    AUTHORITY_URI, METHOD_GET_BLOCK_SUPPRESSAL_STATUS, null, null);

            return new BlockSuppressalStatus(res.getBoolean(RES_IS_BLOCKING_SUPPRESSED, false),

                    res.getLong(RES_BLOCKING_SUPPRESSED_UNTIL_TIMESTAMP, 0));

        }

        /**

         * Represents the current status of {@link #shouldSystemBlockNumber(Context, String)}. If

         * emergency services have been contacted recently, {@link #isSuppressed} is {@code true},

         *  and blocking is disabled until the timestamp {@link #untilTimestampMillis}.

         */

        public static class BlockSuppressalStatus {

            public final boolean isSuppressed;

            /**

             * Timestamp in milliseconds from epoch.

             */

            public final long untilTimestampMillis;

            BlockSuppressalStatus(boolean isSuppressed, long untilTimestampMillis) {

                this.isSuppressed = isSuppressed;

                this.untilTimestampMillis = untilTimestampMillis;

            }

        }

    }

}