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      1 /*
      2  * Copyright (C) 2015 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.qs.tiles;
     17 
     18 import android.content.Context;
     19 import android.content.Intent;
     20 import android.graphics.drawable.Drawable;
     21 import android.service.quicksettings.Tile;
     22 import android.widget.Switch;
     23 import com.android.internal.logging.nano.MetricsProto.MetricsEvent;
     24 import com.android.settingslib.graph.BatteryMeterDrawableBase;
     25 import com.android.systemui.Dependency;
     26 import com.android.systemui.R;
     27 import com.android.systemui.plugins.qs.QSTile.BooleanState;
     28 import com.android.systemui.qs.QSHost;
     29 import com.android.systemui.qs.tileimpl.QSTileImpl;
     30 import com.android.systemui.statusbar.policy.BatteryController;
     31 
     32 public class BatterySaverTile extends QSTileImpl<BooleanState> implements
     33         BatteryController.BatteryStateChangeCallback {
     34 
     35     private final BatteryController mBatteryController;
     36 
     37     private int mLevel;
     38     private boolean mPowerSave;
     39     private boolean mCharging;
     40     private boolean mPluggedIn;
     41 
     42     public BatterySaverTile(QSHost host) {
     43         super(host);
     44         mBatteryController = Dependency.get(BatteryController.class);
     45     }
     46 
     47     @Override
     48     public BooleanState newTileState() {
     49         return new BooleanState();
     50     }
     51 
     52     @Override
     53     public int getMetricsCategory() {
     54         return MetricsEvent.QS_BATTERY_TILE;
     55     }
     56 
     57     @Override
     58     public void handleSetListening(boolean listening) {
     59         if (listening) {
     60             mBatteryController.addCallback(this);
     61         } else {
     62             mBatteryController.removeCallback(this);
     63         }
     64     }
     65 
     66     @Override
     67     public Intent getLongClickIntent() {
     68         return new Intent(Intent.ACTION_POWER_USAGE_SUMMARY);
     69     }
     70 
     71     @Override
     72     protected void handleClick() {
     73         mBatteryController.setPowerSaveMode(!mPowerSave);
     74     }
     75 
     76     @Override
     77     public CharSequence getTileLabel() {
     78         return mContext.getString(R.string.battery_detail_switch_title);
     79     }
     80 
     81     @Override
     82     protected void handleUpdateState(BooleanState state, Object arg) {
     83         state.state = mPluggedIn ? Tile.STATE_UNAVAILABLE
     84                 : mPowerSave ? Tile.STATE_ACTIVE : Tile.STATE_INACTIVE;
     85         BatterySaverIcon bsi = new BatterySaverIcon();
     86         bsi.mState = state.state;
     87         state.icon = bsi;
     88         state.label = mContext.getString(R.string.battery_detail_switch_title);
     89         state.contentDescription = state.label;
     90         state.value = mPowerSave;
     91         state.expandedAccessibilityClassName = Switch.class.getName();
     92     }
     93 
     94     @Override
     95     public void onBatteryLevelChanged(int level, boolean pluggedIn, boolean charging) {
     96         mLevel = level;
     97         mPluggedIn = pluggedIn;
     98         mCharging = charging;
     99         refreshState(level);
    100     }
    101 
    102     @Override
    103     public void onPowerSaveChanged(boolean isPowerSave) {
    104         mPowerSave = isPowerSave;
    105         refreshState(null);
    106     }
    107 
    108     public static class BatterySaverIcon extends Icon {
    109         private int mState;
    110 
    111         @Override
    112         public Drawable getDrawable(Context context) {
    113             BatterySaverDrawable b = new BatterySaverDrawable(context, 0);
    114             b.mState = mState;
    115             final int pad = context.getResources()
    116                     .getDimensionPixelSize(R.dimen.qs_tile_divider_height);
    117             b.setPadding(pad, pad, pad, pad);
    118             return b;
    119         }
    120     }
    121 
    122     private static class BatterySaverDrawable extends BatteryMeterDrawableBase {
    123         private int mState;
    124         private static final int MAX_BATTERY = 100;
    125 
    126         BatterySaverDrawable(Context context, int frameColor) {
    127             super(context, frameColor);
    128             // Show as full so it's always uniform color
    129             super.setBatteryLevel(MAX_BATTERY);
    130             setPowerSave(true);
    131             setCharging(false);
    132         }
    133 
    134         @Override
    135         protected int batteryColorForLevel(int level) {
    136             return QSTileImpl.getColorForState(mContext, mState);
    137         }
    138 
    139         @Override
    140         public void setBatteryLevel(int val) {
    141             // Don't change the actual level, otherwise this won't draw correctly
    142         }
    143     }
    144 }
    145