NotificationManager: Concentrate LED light capabilities at a single location

We had(have) a bunch of individual boolean toggles for various LED behaviors
and combinations, which end up getting used as a similarly sprawling bunch
of getResource() calls across various locations. And they keep piling up...

So... create a new overlayable array of LED capabilities (config_deviceLightCapabilities)
where we can throw everything (and expand in the future). Also, create a
helper to abstract usage of the old (multi-resource) and new (single resource
array) formats to avoid breaking any deployed devices.

Change-Id: I7d627914b058861048071fc15776031c4152157f

2 files changed, 58 insertions, 14 deletions

diff --git a/services/core/java/com/android/server/BatteryService.java b/services/core/java/com/android/server/BatteryService.java
index 19ce5a7..97ad02c 100644
--- a/services/core/java/com/android/server/BatteryService.java
+++ b/services/core/java/com/android/server/BatteryService.java
@@ -1027,19 +1027,19 @@ public final class BatteryService extends SystemService {
         private final int mBatteryLedOff;
 
         public Led(Context context, LightsManager lights) {
+            NotificationManager nm = context.getSystemService(NotificationManager.class);
             mBatteryLight = lights.getLight(LightsManager.LIGHT_ID_BATTERY);
 
             // Does the Device support changing battery LED colors?
-            mMultiColorLed = context.getResources().getBoolean(
-                    com.android.internal.R.bool.config_multiColorBatteryLed);
+            mMultiColorLed = nm.deviceLightsCan(NotificationManager.LIGHTS_RGB_BATTERY);
 
             // Is the notification LED brightness changeable ?
-            mAdjustableNotificationLedBrightness = context.getResources().getBoolean(
-                    org.cyanogenmod.platform.internal.R.bool.config_adjustableNotificationLedBrightness);
+            mAdjustableNotificationLedBrightness = nm.deviceLightsCan(
+                                            NotificationManager.LIGHTS_ADJUSTABLE_NOTIFICATION_BRIGHTNESS);
 
             // Does the Device have multiple LEDs ?
-            mMultipleNotificationLeds = context.getResources().getBoolean(
-                    org.cyanogenmod.platform.internal.R.bool.config_multipleNotificationLeds);
+            mMultipleNotificationLeds = nm.deviceLightsCan(
+                                            NotificationManager.LIGHTS_MULTIPLE_LED);
 
             mBatteryLedOn = context.getResources().getInteger(
                     com.android.internal.R.integer.config_notificationsBatteryLedOn);
@@ -1048,8 +1048,8 @@ public final class BatteryService extends SystemService {
 
             // Does the Device have segmented battery LED support? In this case, we send the level
             // in the alpha channel of the color and let the HAL sort it out.
-            mUseSegmentedBatteryLed = context.getResources().getBoolean(
-                    org.cyanogenmod.platform.internal.R.bool.config_useSegmentedBatteryLed);
+            mUseSegmentedBatteryLed = nm.deviceLightsCan(
+                                            NotificationManager.LIGHTS_SEGMENTED_BATTERY_LIGHTS);
         }
 
         /**
diff --git a/services/core/java/com/android/server/notification/NotificationManagerService.java b/services/core/java/com/android/server/notification/NotificationManagerService.java
index 052d010..422aee2 100644
--- a/services/core/java/com/android/server/notification/NotificationManagerService.java
+++ b/services/core/java/com/android/server/notification/NotificationManagerService.java
@@ -1227,8 +1227,7 @@ public class NotificationManagerService extends SystemService {
         mDefaultNotificationLedOff = resources.getInteger(
                 R.integer.config_defaultNotificationLedOff);
 
-        mMultiColorNotificationLed = resources.getBoolean(
-                R.bool.config_multiColorNotificationLed);
+        mMultiColorNotificationLed = deviceLightsCan(NotificationManager.LIGHTS_RGB_NOTIFICATION);
 
         mNotificationPulseCustomLedValues = new HashMap<String, NotificationLedValues>();
 
@@ -1250,10 +1249,10 @@ public class NotificationManagerService extends SystemService {
                 VIBRATE_PATTERN_MAXLEN,
                 DEFAULT_VIBRATE_PATTERN);
 
-        mAdjustableNotificationLedBrightness = resources.getBoolean(
-                org.cyanogenmod.platform.internal.R.bool.config_adjustableNotificationLedBrightness);
-        mMultipleNotificationLeds = resources.getBoolean(
-                org.cyanogenmod.platform.internal.R.bool.config_multipleNotificationLeds);
+        mAdjustableNotificationLedBrightness = deviceLightsCan(
+                                            NotificationManager.LIGHTS_ADJUSTABLE_NOTIFICATION_BRIGHTNESS);
+        mMultipleNotificationLeds = deviceLightsCan(
+                                            NotificationManager.LIGHTS_MULTIPLE_LED);
 
         mUseAttentionLight = resources.getBoolean(R.bool.config_useAttentionLight);
 
@@ -1396,6 +1395,47 @@ public class NotificationManagerService extends SystemService {
         scheduleInterruptionFilterChanged(interruptionFilter);
     }
 
+    private int deviceLightsCapabilities() {
+        Resources resources = getContext().getResources();
+        int capabilities = SystemProperties.getInt("sys.lights.capabilities", 0);
+
+        if (capabilities == 0) {
+            int[] deviceCaps = resources.getIntArray(
+                    com.android.internal.R.array.config_deviceLightCapabilities);
+            for (int cap : deviceCaps) {
+                capabilities |= 1<<cap;
+            }
+        }
+
+        /* Legacy format */
+        if (capabilities == 0) {
+            if (resources.getBoolean(com.android.internal.R.bool.config_multiColorNotificationLed)) {
+                capabilities |= 1<<NotificationManager.LIGHTS_RGB_NOTIFICATION;
+            }
+            if (resources.getBoolean(com.android.internal.R.bool.config_multiColorBatteryLed)) {
+                capabilities |= 1<<NotificationManager.LIGHTS_RGB_BATTERY;
+            }
+            if (resources.getBoolean(com.android.internal.R.bool.config_ledCanPulse)) {
+                capabilities |= 1<<NotificationManager.LIGHTS_LED_PULSE;
+            }
+            if (resources.getBoolean(org.cyanogenmod.platform.internal.R.bool.config_multipleNotificationLeds)) {
+                capabilities |= 1<<NotificationManager.LIGHTS_MULTIPLE_LED;
+            }
+            if (resources.getBoolean(org.cyanogenmod.platform.internal.R.bool.config_useSegmentedBatteryLed)) {
+                capabilities |= 1<<NotificationManager.LIGHTS_SEGMENTED_BATTERY_LIGHTS;
+            }
+            if (resources.getBoolean(org.cyanogenmod.platform.internal.R.bool.config_adjustableNotificationLedBrightness)) {
+                capabilities |= 1<<NotificationManager.LIGHTS_ADJUSTABLE_NOTIFICATION_BRIGHTNESS;
+            }
+        }
+        return capabilities;
+    }
+
+    /** @hide */
+    public boolean deviceLightsCan(int lightCapability) {
+        return ( (deviceLightsCapabilities() & 1<<lightCapability) != 0 );
+    }
+
     private final IBinder mService = new INotificationManager.Stub() {
         // Toasts
         // ============================================================================
@@ -2161,6 +2201,10 @@ public class NotificationManagerService extends SystemService {
                 Binder.restoreCallingIdentity(identity);
             }
         }
+
+        public boolean deviceLightsCan(int lightCapability) {
+            return ( (deviceLightsCapabilities() & 1<<lightCapability) != 0 );
+        }
     };
 
     private String disableNotificationEffects(NotificationRecord record) {