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      1 /*
      2  * Copyright (C) 2011 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.policy;
     18 
     19 import android.animation.Animator;
     20 import android.animation.AnimatorListenerAdapter;
     21 import android.animation.LayoutTransition;
     22 import android.animation.ObjectAnimator;
     23 import android.animation.ValueAnimator;
     24 import android.content.Context;
     25 import android.content.res.Configuration;
     26 import android.content.res.TypedArray;
     27 import android.graphics.Rect;
     28 import android.graphics.drawable.Drawable;
     29 import android.util.AttributeSet;
     30 import android.util.Log;
     31 import android.util.Slog;
     32 import android.view.MotionEvent;
     33 import android.view.View;
     34 import android.view.View.OnClickListener;
     35 import android.view.ViewConfiguration;
     36 import android.view.ViewGroup;
     37 import android.widget.LinearLayout;
     38 import android.widget.RemoteViews;
     39 
     40 import com.android.systemui.R;
     41 import com.android.systemui.SwipeHelper;
     42 import com.android.systemui.statusbar.BaseStatusBar;
     43 
     44 import java.util.HashMap;
     45 
     46 public class IntruderAlertView extends LinearLayout implements SwipeHelper.Callback {
     47     private static final String TAG = "IntruderAlertView";
     48     private static final boolean DEBUG = false;
     49 
     50     Rect mTmpRect = new Rect();
     51 
     52     private SwipeHelper mSwipeHelper;
     53 
     54     BaseStatusBar mBar;
     55     private ViewGroup mContentHolder;
     56 
     57     private RemoteViews mIntruderRemoteViews;
     58     private OnClickListener mOnClickListener;
     59 
     60     public IntruderAlertView(Context context, AttributeSet attrs) {
     61         this(context, attrs, 0);
     62     }
     63 
     64     public IntruderAlertView(Context context, AttributeSet attrs, int defStyle) {
     65         super(context, attrs, defStyle);
     66 
     67         setOrientation(LinearLayout.VERTICAL);
     68     }
     69 
     70     @Override
     71     public void onAttachedToWindow() {
     72         float densityScale = getResources().getDisplayMetrics().density;
     73         float pagingTouchSlop = ViewConfiguration.get(getContext()).getScaledPagingTouchSlop();
     74         mSwipeHelper = new SwipeHelper(SwipeHelper.X, this, densityScale, pagingTouchSlop);
     75 
     76         mContentHolder = (ViewGroup) findViewById(R.id.contentHolder);
     77         if (mIntruderRemoteViews != null) {
     78             // whoops, we're on already!
     79             applyIntruderContent(mIntruderRemoteViews, mOnClickListener);
     80         }
     81     }
     82 
     83     public void setBar(BaseStatusBar bar) {
     84         mBar = bar;
     85     }
     86 
     87     @Override
     88     public boolean onInterceptTouchEvent(MotionEvent ev) {
     89         if (DEBUG) Log.v(TAG, "onInterceptTouchEvent()");
     90         return mSwipeHelper.onInterceptTouchEvent(ev) ||
     91             super.onInterceptTouchEvent(ev);
     92     }
     93 
     94     @Override
     95     public boolean onTouchEvent(MotionEvent ev) {
     96         return mSwipeHelper.onTouchEvent(ev) ||
     97             super.onTouchEvent(ev);
     98     }
     99 
    100     public boolean canChildBeDismissed(View v) {
    101         return true;
    102     }
    103 
    104     public void onChildDismissed(View v) {
    105         Slog.v(TAG, "User swiped intruder to dismiss");
    106         mBar.dismissIntruder();
    107     }
    108 
    109     public void onBeginDrag(View v) {
    110     }
    111 
    112     public void onDragCancelled(View v) {
    113         mContentHolder.setAlpha(1f); // sometimes this isn't quite reset
    114     }
    115 
    116     public View getChildAtPosition(MotionEvent ev) {
    117         return mContentHolder;
    118     }
    119 
    120     public View getChildContentView(View v) {
    121         return v;
    122     }
    123 
    124     @Override
    125     protected void onConfigurationChanged(Configuration newConfig) {
    126         super.onConfigurationChanged(newConfig);
    127         float densityScale = getResources().getDisplayMetrics().density;
    128         mSwipeHelper.setDensityScale(densityScale);
    129         float pagingTouchSlop = ViewConfiguration.get(getContext()).getScaledPagingTouchSlop();
    130         mSwipeHelper.setPagingTouchSlop(pagingTouchSlop);
    131     }
    132 
    133     @Override
    134     public void onDraw(android.graphics.Canvas c) {
    135         super.onDraw(c);
    136         if (DEBUG) {
    137             //Slog.d(TAG, "onDraw: canvas height: " + c.getHeight() + "px; measured height: "
    138             //        + getMeasuredHeight() + "px");
    139             c.save();
    140             c.clipRect(6, 6, c.getWidth() - 6, getMeasuredHeight() - 6,
    141                     android.graphics.Region.Op.DIFFERENCE);
    142             c.drawColor(0xFFcc00cc);
    143             c.restore();
    144         }
    145     }
    146 
    147     public void applyIntruderContent(RemoteViews intruderView, OnClickListener listener) {
    148         if (DEBUG) {
    149             Slog.v(TAG, "applyIntruderContent: view=" + intruderView + " listener=" + listener);
    150         }
    151         mIntruderRemoteViews = intruderView;
    152         mOnClickListener = listener;
    153         if (mContentHolder == null) {
    154             // too soon!
    155             return;
    156         }
    157         mContentHolder.setX(0);
    158         mContentHolder.setVisibility(View.VISIBLE);
    159         mContentHolder.setAlpha(1f);
    160         mContentHolder.removeAllViews();
    161         final View content = intruderView.apply(getContext(), mContentHolder);
    162         if (listener != null) {
    163             content.setOnClickListener(listener);
    164 
    165             //content.setBackgroundResource(R.drawable.intruder_row_bg);
    166             Drawable bg = getResources().getDrawable(R.drawable.intruder_row_bg);
    167             if (bg == null) {
    168                 Log.e(TAG, String.format("Can't find background drawable id=0x%08x", R.drawable.intruder_row_bg));
    169             } else {
    170                 content.setBackgroundDrawable(bg);
    171             }
    172         }
    173         mContentHolder.addView(content);
    174 
    175     }
    176 }