/*******************************************************************************
 * Copyright 2011, 2012 Chris Banes.
 *
 * 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.videogo.widget.pulltorefresh;

import android.annotation.TargetApi;
import android.content.Context;
import android.os.Build.VERSION;
import android.os.Build.VERSION_CODES;
import android.util.AttributeSet;
import android.view.View;
import android.widget.GridView;

public class PullToRefreshGridView extends PullToRefreshAdapterViewBase<GridView> {

    public PullToRefreshGridView(Context context) {
        super(context);
    }

    public PullToRefreshGridView(Context context, AttributeSet attrs) {
        super(context, attrs);
    }

    public PullToRefreshGridView(Context context, Mode mode) {
        super(context, mode);
    }

    @Override
    public final Orientation getPullToRefreshScrollDirection() {
        return Orientation.VERTICAL;
    }

    @Override
    protected final GridView createRefreshableView(Context context, AttributeSet attrs) {
        final GridView gv;
        if (VERSION.SDK_INT >= VERSION_CODES.GINGERBREAD) {
            gv = new InternalGridViewSDK9(context, attrs);
        } else {
            gv = new InternalGridView(context, attrs);
        }

        return gv;
    }

    class InternalGridView extends GridView implements EmptyViewMethodAccessor {

        public InternalGridView(Context context, AttributeSet attrs) {
            super(context, attrs);
        }

        @Override
        public void setEmptyView(View emptyView) {
            PullToRefreshGridView.this.setEmptyView(emptyView);
        }

        @Override
        public void setEmptyViewInternal(View emptyView) {
            super.setEmptyView(emptyView);
        }
    }

    @TargetApi(9)
    final class InternalGridViewSDK9 extends InternalGridView {

        public InternalGridViewSDK9(Context context, AttributeSet attrs) {
            super(context, attrs);
        }

        @Override
        protected boolean overScrollBy(int deltaX, int deltaY, int scrollX, int scrollY, int scrollRangeX,
                int scrollRangeY, int maxOverScrollX, int maxOverScrollY, boolean isTouchEvent) {

            final boolean returnValue = super.overScrollBy(deltaX, deltaY, scrollX, scrollY, scrollRangeX,
                    scrollRangeY, maxOverScrollX, maxOverScrollY, isTouchEvent);

            // Does all of the hard work...
            OverscrollHelper.overScrollBy(PullToRefreshGridView.this, deltaX, scrollX, deltaY, scrollY, isTouchEvent);

            return returnValue;
        }
    }
}
