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      1 /*
      2  * Copyright (C) 2018 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License
     15  */
     16 
     17 package com.android.internal.widget;
     18 
     19 import android.content.Context;
     20 import android.content.res.ColorStateList;
     21 import android.graphics.drawable.DrawableWrapper;
     22 import android.graphics.drawable.GradientDrawable;
     23 import android.graphics.drawable.InsetDrawable;
     24 import android.graphics.drawable.RippleDrawable;
     25 import android.util.AttributeSet;
     26 import android.view.RemotableViewMethod;
     27 import android.widget.Button;
     28 import android.widget.RemoteViews;
     29 
     30 /**
     31  * A button implementation for the emphasized notification style.
     32  *
     33  * @hide
     34  */
     35 @RemoteViews.RemoteView
     36 public class EmphasizedNotificationButton extends Button {
     37     private final RippleDrawable mRipple;
     38     private final int mStrokeWidth;
     39     private final int mStrokeColor;
     40 
     41     public EmphasizedNotificationButton(Context context) {
     42         this(context, null);
     43     }
     44 
     45     public EmphasizedNotificationButton(Context context, AttributeSet attrs) {
     46         this(context, attrs, 0);
     47     }
     48 
     49     public EmphasizedNotificationButton(Context context, AttributeSet attrs, int defStyleAttr) {
     50         this(context, attrs, defStyleAttr, 0);
     51     }
     52 
     53     public EmphasizedNotificationButton(Context context, AttributeSet attrs, int defStyleAttr,
     54             int defStyleRes) {
     55         super(context, attrs, defStyleAttr, defStyleRes);
     56         DrawableWrapper background = (DrawableWrapper) getBackground().mutate();
     57         mRipple = (RippleDrawable) background.getDrawable();
     58         mStrokeWidth = getResources().getDimensionPixelSize(
     59                 com.android.internal.R.dimen.emphasized_button_stroke_width);
     60         mStrokeColor = getContext().getColor(com.android.internal.R.color.material_grey_300);
     61         mRipple.mutate();
     62     }
     63 
     64     @RemotableViewMethod
     65     public void setRippleColor(ColorStateList color) {
     66         mRipple.setColor(color);
     67         invalidate();
     68     }
     69 
     70     @RemotableViewMethod
     71     public void setButtonBackground(ColorStateList color) {
     72         GradientDrawable inner = (GradientDrawable) mRipple.getDrawable(0);
     73         inner.setColor(color);
     74         invalidate();
     75     }
     76 
     77     @RemotableViewMethod
     78     public void setHasStroke(boolean hasStroke) {
     79         GradientDrawable inner = (GradientDrawable) mRipple.getDrawable(0);
     80         inner.setStroke(hasStroke ? mStrokeWidth : 0, mStrokeColor);
     81         invalidate();
     82     }
     83 }
     84