FairEmail/app/src/main/java/eu/faircode/email/BehaviorBottomPadding.java

package eu.faircode.email;

/*
    This file is part of FairEmail.

    FairEmail is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.

    FairEmail is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with FairEmail.  If not, see <http://www.gnu.org/licenses/>.

    Copyright 2018-2024 by Marcel Bokhorst (M66B)
*/

import android.content.Context;
import android.util.AttributeSet;
import android.view.View;

import androidx.annotation.NonNull;
import androidx.coordinatorlayout.widget.CoordinatorLayout;

import com.google.android.material.snackbar.Snackbar;

public class BehaviorBottomPadding extends CoordinatorLayout.Behavior<View> {
    public BehaviorBottomPadding() {
        super();
    }

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

    @Override
    public boolean layoutDependsOn(@NonNull CoordinatorLayout parent, @NonNull View child, @NonNull View dependency) {
        return (dependency instanceof Snackbar.SnackbarLayout);
    }

    @Override
    public boolean onDependentViewChanged(@NonNull CoordinatorLayout parent, @NonNull View child, @NonNull View dependency) {
        setPadding(child, dependency.isAttachedToWindow() ? dependency.getHeight() : 0);
        return true;
    }

    @Override
    public void onDependentViewRemoved(CoordinatorLayout parent, View child, View dependency) {
        setPadding(child, 0);
    }

    private static void setPadding(View child, int value) {
        child.setPadding(0, 0, 0, value);
    }
}