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      1 /*
      2  * Copyright (C) 2014 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.systemui.statusbar;
     18 
     19 import android.content.Context;
     20 import android.graphics.Canvas;
     21 import android.graphics.drawable.Drawable;
     22 import android.util.AttributeSet;
     23 import android.widget.FrameLayout;
     24 import com.android.systemui.R;
     25 
     26 /**
     27  * The guts of a notification revealed when performing a long press.
     28  */
     29 public class NotificationGuts extends FrameLayout {
     30 
     31     private Drawable mBackground;
     32     private int mClipTopAmount;
     33     private int mActualHeight;
     34 
     35     public NotificationGuts(Context context, AttributeSet attrs) {
     36         super(context, attrs);
     37         setWillNotDraw(false);
     38     }
     39 
     40     @Override
     41     protected void onDraw(Canvas canvas) {
     42         draw(canvas, mBackground);
     43     }
     44 
     45     private void draw(Canvas canvas, Drawable drawable) {
     46         if (drawable != null) {
     47             drawable.setBounds(0, mClipTopAmount, getWidth(), mActualHeight);
     48             drawable.draw(canvas);
     49         }
     50     }
     51 
     52     @Override
     53     protected void onFinishInflate() {
     54         super.onFinishInflate();
     55         mBackground = mContext.getDrawable(R.drawable.notification_guts_bg);
     56         if (mBackground != null) {
     57             mBackground.setCallback(this);
     58         }
     59     }
     60 
     61     @Override
     62     protected boolean verifyDrawable(Drawable who) {
     63         return super.verifyDrawable(who) || who == mBackground;
     64     }
     65 
     66     @Override
     67     protected void drawableStateChanged() {
     68         drawableStateChanged(mBackground);
     69     }
     70 
     71     private void drawableStateChanged(Drawable d) {
     72         if (d != null && d.isStateful()) {
     73             d.setState(getDrawableState());
     74         }
     75     }
     76 
     77     @Override
     78     public void drawableHotspotChanged(float x, float y) {
     79         if (mBackground != null) {
     80             mBackground.setHotspot(x, y);
     81         }
     82     }
     83 
     84     public void setActualHeight(int actualHeight) {
     85         mActualHeight = actualHeight;
     86         invalidate();
     87     }
     88 
     89     public int getActualHeight() {
     90         return mActualHeight;
     91     }
     92 
     93     public void setClipTopAmount(int clipTopAmount) {
     94         mClipTopAmount = clipTopAmount;
     95         invalidate();
     96     }
     97 
     98     @Override
     99     public boolean hasOverlappingRendering() {
    100 
    101         // Prevents this view from creating a layer when alpha is animating.
    102         return false;
    103     }
    104 }
    105