material-components_material-components-android/base/android/support/design/widget/VisibilityAwareImageButton.java

/*
 * Copyright (C) 2015 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 android.support.design.widget;

import android.content.Context;
import android.util.AttributeSet;
import android.widget.ImageButton;

class VisibilityAwareImageButton extends ImageButton {

    private int mUserSetVisibility;

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

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

    public VisibilityAwareImageButton(Context context, AttributeSet attrs, int defStyleAttr) {
        super(context, attrs, defStyleAttr);
        mUserSetVisibility = getVisibility();
    }

    @Override
    public void setVisibility(int visibility) {
        internalSetVisibility(visibility, true);
    }

    final void internalSetVisibility(int visibility, boolean fromUser) {
        super.setVisibility(visibility);
        if (fromUser) {
            mUserSetVisibility = visibility;
        }
    }

    final int getUserSetVisibility() {
        return mUserSetVisibility;
    }
}