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      1 /*
      2  * Copyright (C) 2013 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 package com.android.systemui;
     17 
     18 import android.content.Context;
     19 import android.content.res.TypedArray;
     20 import android.os.Handler;
     21 import android.util.ArraySet;
     22 import android.util.AttributeSet;
     23 import android.view.View;
     24 import android.widget.ImageView;
     25 
     26 import com.android.systemui.statusbar.phone.StatusBarIconController;
     27 import com.android.systemui.statusbar.policy.BatteryController;
     28 import com.android.systemui.tuner.TunerService;
     29 
     30 public class BatteryMeterView extends ImageView implements
     31         BatteryController.BatteryStateChangeCallback, TunerService.Tunable {
     32 
     33     private final BatteryMeterDrawable mDrawable;
     34     private final String mSlotBattery;
     35     private BatteryController mBatteryController;
     36 
     37     public BatteryMeterView(Context context) {
     38         this(context, null, 0);
     39     }
     40 
     41     public BatteryMeterView(Context context, AttributeSet attrs) {
     42         this(context, attrs, 0);
     43     }
     44 
     45     public BatteryMeterView(Context context, AttributeSet attrs, int defStyle) {
     46         super(context, attrs, defStyle);
     47 
     48         TypedArray atts = context.obtainStyledAttributes(attrs, R.styleable.BatteryMeterView,
     49                 defStyle, 0);
     50         final int frameColor = atts.getColor(R.styleable.BatteryMeterView_frameColor,
     51                 context.getColor(R.color.batterymeter_frame_color));
     52         mDrawable = new BatteryMeterDrawable(context, new Handler(), frameColor);
     53         atts.recycle();
     54 
     55         mSlotBattery = context.getString(
     56                 com.android.internal.R.string.status_bar_battery);
     57         setImageDrawable(mDrawable);
     58     }
     59 
     60     @Override
     61     public boolean hasOverlappingRendering() {
     62         return false;
     63     }
     64 
     65     @Override
     66     public void onTuningChanged(String key, String newValue) {
     67         if (StatusBarIconController.ICON_BLACKLIST.equals(key)) {
     68             ArraySet<String> icons = StatusBarIconController.getIconBlacklist(newValue);
     69             setVisibility(icons.contains(mSlotBattery) ? View.GONE : View.VISIBLE);
     70         }
     71     }
     72 
     73     @Override
     74     public void onAttachedToWindow() {
     75         super.onAttachedToWindow();
     76         mBatteryController.addStateChangedCallback(this);
     77         mDrawable.startListening();
     78         TunerService.get(getContext()).addTunable(this, StatusBarIconController.ICON_BLACKLIST);
     79     }
     80 
     81     @Override
     82     public void onDetachedFromWindow() {
     83         super.onDetachedFromWindow();
     84         mBatteryController.removeStateChangedCallback(this);
     85         mDrawable.stopListening();
     86         TunerService.get(getContext()).removeTunable(this);
     87     }
     88 
     89     @Override
     90     public void onBatteryLevelChanged(int level, boolean pluggedIn, boolean charging) {
     91         setContentDescription(
     92                 getContext().getString(charging ? R.string.accessibility_battery_level_charging
     93                         : R.string.accessibility_battery_level, level));
     94     }
     95 
     96     @Override
     97     public void onPowerSaveChanged(boolean isPowerSave) {
     98 
     99     }
    100 
    101     public void setBatteryController(BatteryController mBatteryController) {
    102         this.mBatteryController = mBatteryController;
    103         mDrawable.setBatteryController(mBatteryController);
    104     }
    105 
    106     public void setDarkIntensity(float f) {
    107         mDrawable.setDarkIntensity(f);
    108     }
    109 }
    110