Merge "Remove unused EventHole."

/*

 * Copyright (C) 2008 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.systemui.statusbar.policy;

import android.content.Context;

import android.graphics.Region;

import android.util.AttributeSet;

import android.view.View;

import android.view.ViewTreeObserver;

public class EventHole extends View implements ViewTreeObserver.OnComputeInternalInsetsListener {

    private static final String TAG = "StatusBar.EventHole";

    private boolean mWindowVis;

    private int[] mLoc = new int[2];

    public EventHole(Context context, AttributeSet attrs) {

        this(context, attrs, 0);

    }

    public EventHole(Context context, AttributeSet attrs, int defStyle) {

        super(context, attrs);

    }

    @Override

    protected void onWindowVisibilityChanged(int visibility) {

        super.onWindowVisibilityChanged(visibility);

        mWindowVis = visibility == View.VISIBLE;

    }

    @Override

    protected void onAttachedToWindow() {

        super.onAttachedToWindow();

        getViewTreeObserver().addOnComputeInternalInsetsListener(this);

    }

    @Override

    protected void onDetachedFromWindow() {

        super.onDetachedFromWindow();

        getViewTreeObserver().removeOnComputeInternalInsetsListener(this);

    }

    public void onComputeInternalInsets(ViewTreeObserver.InternalInsetsInfo info) {

        final boolean visible = isShown() && mWindowVis && getWidth() > 0 && getHeight() > 0;

        final int[] loc = mLoc;

        getLocationInWindow(loc);

        final int l = loc[0];

        final int r = l + getWidth();

        final int t = loc[1];

        final int b = t + getHeight();

        View top = this;

        while (top.getParent() instanceof View) {

            top = (View)top.getParent();

        }

        if (visible) {

            info.setTouchableInsets(

                    ViewTreeObserver.InternalInsetsInfo.TOUCHABLE_INSETS_REGION);

            info.touchableRegion.set(0, 0, top.getWidth(), top.getHeight());

            info.touchableRegion.op(l, t, r, b, Region.Op.DIFFERENCE);

        } else {

            info.setTouchableInsets(

                    ViewTreeObserver.InternalInsetsInfo.TOUCHABLE_INSETS_FRAME);

        }

    }

}