/*
 * Copyright (C) 2016 Cyanogen, Inc.
 * Copyright (C) 2016 The CyanogenMod 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 org.cyanogenmod.theme.widget;

import android.content.Context;
import android.util.AttributeSet;
import android.view.MotionEvent;
import android.widget.ScrollView;

public class LockableScrollView extends ScrollView {
    private boolean mScrollingEnabled = true;

    public LockableScrollView(Context context) {
        this(context, null);
    }

    public LockableScrollView(Context context, AttributeSet attrs) {
        this(context, attrs, 0);
    }

    public LockableScrollView(Context context, AttributeSet attrs, int defStyle) {
        super(context, attrs, defStyle);
    }

    public void setScrollingEnabled(boolean enabled) {
        mScrollingEnabled = enabled;
    }

    @Override
    public boolean onInterceptTouchEvent(MotionEvent ev) {
        return mScrollingEnabled && super.onInterceptTouchEvent(ev);
    }

    @Override
    public boolean onTouchEvent(MotionEvent ev) {
        switch (ev.getAction()) {
            case MotionEvent.ACTION_DOWN:
                return mScrollingEnabled && super.onTouchEvent(ev);
            default:
                return super.onTouchEvent(ev);
        }
    }

    @Override
    public void setOverScrollMode(int mode) {
        // Some themes can cause theme chooser to crash when creating the EdgeEffects for
        // the scroll view.  If an exception occurs we fallback to no overscroll
        try {
            super.setOverScrollMode(mode);
        } catch (Exception e) {
            super.setOverScrollMode(OVER_SCROLL_NEVER);
        }
    }
}