/*
 * Copyright (C) 2012 Google Inc.
 * Licensed to The Android Open Source Project.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.android.mail.browse;

public interface ScrollNotifier {
    public interface ScrollListener {
        void onNotifierScroll(int x, int y);
    }

    void addScrollListener(ScrollListener l);
    void removeScrollListener(ScrollListener l);

    int computeVerticalScrollRange();
    int computeVerticalScrollExtent();
    int computeVerticalScrollOffset();
    int computeHorizontalScrollRange();
    int computeHorizontalScrollExtent();
    int computeHorizontalScrollOffset();
}