content: /*
   * Copyright (C) 2018 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.internal.widget;
  
  import android.content.Context;
  import android.content.res.ColorStateList;
  import android.graphics.drawable.DrawableWrapper;
  import android.graphics.drawable.GradientDrawable;
  import android.graphics.drawable.InsetDrawable;
  import android.graphics.drawable.RippleDrawable;
  import android.util.AttributeSet;
  import android.view.RemotableViewMethod;
  import android.widget.Button;
  import android.widget.RemoteViews;
  
  /**
   * A button implementation for the emphasized notification style.
   *
   * @hide
   */
  @RemoteViews.RemoteView
  public class EmphasizedNotificationButton extends Button {
      private final RippleDrawable mRipple;
      private final int mStrokeWidth;
      private final int mStrokeColor;
  
      public EmphasizedNotificationButton(Context context) {
          this(context, null);
      }
  
      public EmphasizedNotificationButton(Context context, AttributeSet attrs) {
          this(context, attrs, 0);
      }
  
      public EmphasizedNotificationButton(Context context, AttributeSet attrs, int defStyleAttr) {
          this(context, attrs, defStyleAttr, 0);
      }
  
      public EmphasizedNotificationButton(Context context, AttributeSet attrs, int defStyleAttr,
              int defStyleRes) {
          super(context, attrs, defStyleAttr, defStyleRes);
          DrawableWrapper background = (DrawableWrapper) getBackground().mutate();
          mRipple = (RippleDrawable) background.getDrawable();
          mStrokeWidth = getResources().getDimensionPixelSize(
                  com.android.internal.R.dimen.emphasized_button_stroke_width);
          mStrokeColor = getContext().getColor(com.android.internal.R.color.material_grey_300);
          mRipple.mutate();
      }
  
      @RemotableViewMethod
      public void setRippleColor(ColorStateList color) {
          mRipple.setColor(color);
          invalidate();
      }
  
      @RemotableViewMethod
      public void setButtonBackground(ColorStateList color) {
          GradientDrawable inner = (GradientDrawable) mRipple.getDrawable(0);
          inner.setColor(color);
          invalidate();
      }
  
      @RemotableViewMethod
      public void setHasStroke(boolean hasStroke) {
          GradientDrawable inner = (GradientDrawable) mRipple.getDrawable(0);
          inner.setStroke(hasStroke ? mStrokeWidth : 0, mStrokeColor);
          invalidate();
      }
  }
  