Remove battery color when in power save

Also changes to color to our consistent warning color.

Bug: 16849393
Change-Id: I71737c1b7c18af569b5f4e957b006db579266cd1

packages/SystemUI/res/values/arrays.xml

@@ -25,7 +25,7 @@
         <item>100</item>
     </array>
     <array name="batterymeter_color_values">
-        <item>#FFFF3300</item>
+        <item>@*android:color/battery_saver_mode_color</item>
         <item>#FFFFFFFF</item>
     </array>
     <array name="batterymeter_bolt_points">

packages/SystemUI/src/com/android/systemui/BatteryMeterView.java

@@ -33,7 +33,10 @@ import android.provider.Settings;
 import android.util.AttributeSet;
 import android.view.View;
 
-public class BatteryMeterView extends View implements DemoMode {
+import com.android.systemui.statusbar.policy.BatteryController;
+
+public class BatteryMeterView extends View implements DemoMode,
+        BatteryController.BatteryStateChangeCallback {
     public static final String TAG = BatteryMeterView.class.getSimpleName();
     public static final String ACTION_LEVEL_TEST = "com.android.systemui.BATTERY_LEVEL_TEST";
 
@@ -68,6 +71,9 @@ public class BatteryMeterView extends View implements DemoMode {
     private final Path mClipPath = new Path();
     private final Path mTextPath = new Path();
 
+    private BatteryController mBatteryController;
+    private boolean mPowerSaveEnabled;
+
     private class BatteryTracker extends BroadcastReceiver {
         public static final int UNKNOWN_LEVEL = -1;
 
@@ -155,6 +161,7 @@ public class BatteryMeterView extends View implements DemoMode {
             // preload the battery level
             mTracker.onReceive(getContext(), sticky);
         }
+        mBatteryController.addStateChangedCallback(this);
     }
 
     @Override
@@ -162,6 +169,7 @@ public class BatteryMeterView extends View implements DemoMode {
         super.onDetachedFromWindow();
 
         getContext().unregisterReceiver(mTracker);
+        mBatteryController.removeStateChangedCallback(this);
     }
 
     public BatteryMeterView(Context context) {
@@ -227,6 +235,22 @@ public class BatteryMeterView extends View implements DemoMode {
         mBoltPoints = loadBoltPoints(res);
     }
 
+    public void setBatteryController(BatteryController batteryController) {
+        mBatteryController = batteryController;
+        mPowerSaveEnabled = mBatteryController.isPowerSave();
+    }
+
+    @Override
+    public void onBatteryLevelChanged(int level, boolean pluggedIn, boolean charging) {
+        // TODO: Use this callback instead of own broadcast receiver.
+    }
+
+    @Override
+    public void onPowerSaveChanged() {
+        mPowerSaveEnabled = mBatteryController.isPowerSave();
+        invalidate();
+    }
+
     private static float[] loadBoltPoints(Resources res) {
         final int[] pts = res.getIntArray(R.array.batterymeter_bolt_points);
         int maxX = 0, maxY = 0;
@@ -251,6 +275,11 @@ public class BatteryMeterView extends View implements DemoMode {
     }
 
     private int getColorForLevel(int percent) {
+
+        // If we are in power save mode, always use the normal color.
+        if (mPowerSaveEnabled) {
+            return mColors[mColors.length-1];
+        }
         int thresh, color = 0;
         for (int i=0; i<mColors.length; i+=2) {
             thresh = mColors[i];

packages/SystemUI/src/com/android/systemui/statusbar/phone/KeyguardStatusBarView.java

@@ -30,6 +30,7 @@ import android.widget.ImageView;
 import android.widget.RelativeLayout;
 import android.widget.TextView;
 
+import com.android.systemui.BatteryMeterView;
 import com.android.systemui.R;
 import com.android.systemui.statusbar.policy.BatteryController;
 import com.android.systemui.statusbar.policy.KeyguardUserSwitcher;
@@ -135,6 +136,7 @@ public class KeyguardStatusBarView extends RelativeLayout
 
     public void setBatteryController(BatteryController batteryController) {
         mBatteryController = batteryController;
+        ((BatteryMeterView) findViewById(R.id.battery)).setBatteryController(batteryController);
     }
 
     public void setUserInfoController(UserInfoController userInfoController) {

packages/SystemUI/src/com/android/systemui/statusbar/phone/PhoneStatusBar.java

@@ -109,6 +109,7 @@ import android.widget.TextView;
 import com.android.internal.statusbar.StatusBarIcon;
 import com.android.keyguard.KeyguardHostView.OnDismissAction;
 import com.android.keyguard.ViewMediatorCallback;
+import com.android.systemui.BatteryMeterView;
 import com.android.systemui.DemoMode;
 import com.android.systemui.EventLogTags;
 import com.android.systemui.R;
@@ -848,6 +849,8 @@ public class PhoneStatusBar extends BaseStatusBar implements DemoMode,
         mUserInfoController.reloadUserInfo();
 
         mHeader.setBatteryController(mBatteryController);
+        ((BatteryMeterView) mStatusBarView.findViewById(R.id.battery)).setBatteryController(
+                mBatteryController);
         mKeyguardStatusBar.setBatteryController(mBatteryController);
         mHeader.setNextAlarmController(mNextAlarmController);