content: /*
   * Copyright (C) 2017 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.launcher3.views;
  
  import android.content.Context;
  import android.util.AttributeSet;
  import android.view.View;
  import android.widget.RelativeLayout;
  
  /**
   * Container to show work footer in all-apps.
   */
  public class WorkFooterContainer extends RelativeLayout {
  
      public WorkFooterContainer(Context context) {
          super(context);
      }
  
      public WorkFooterContainer(Context context, AttributeSet attrs) {
          super(context, attrs);
      }
  
      public WorkFooterContainer(Context context, AttributeSet attrs, int defStyleAttr) {
          super(context, attrs, defStyleAttr);
      }
  
      @Override
      protected void onLayout(boolean changed, int l, int t, int r, int b) {
          super.onLayout(changed, l, t, r, b);
          updateTranslation();
      }
  
      @Override
      public void offsetTopAndBottom(int offset) {
          super.offsetTopAndBottom(offset);
          updateTranslation();
      }
  
      private void updateTranslation() {
          if (getParent() instanceof View) {
              View parent = (View) getParent();
              int availableBot = parent.getHeight() - parent.getPaddingBottom();
              setTranslationY(Math.max(0, availableBot - getBottom()));
          }
      }
  }
  