From fda6fae156e31a287e3cfbf66e51ea1405cdf479 Mon Sep 17 00:00:00 2001
From: Cliff Spradlin <cliff_spradlin@htc.com>
Date: Wed, 22 Oct 2008 20:29:16 -0700
Subject: [PATCH] Added broadcasts for external power events.

---
 core/java/android/content/Intent.java                | 20 ++++++++++++++++++++
 services/java/com/android/server/BatteryService.java | 10 ++++++++++
 2 files changed, 30 insertions(+)

diff --git a/core/java/android/content/Intent.java b/core/java/android/content/Intent.java
index c76158c1adb0..598e0e8944e2 100644
--- a/core/java/android/content/Intent.java
+++ b/core/java/android/content/Intent.java
@@ -507,6 +507,8 @@ import java.util.Set;
  *     <li> {@link #ACTION_PACKAGE_REMOVED}
  *     <li> {@link #ACTION_UID_REMOVED}
  *     <li> {@link #ACTION_BATTERY_CHANGED}
+ *     <li> {@link #ACTION_POWER_CONNECTED}
+ *     <li> {@link #ACTION_POWER_DISCONNECTED} 
  * </ul>
  *
  * <h3>Standard Categories</h3>
@@ -1178,6 +1180,24 @@ public class Intent implements Parcelable {
     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
     public static final String ACTION_BATTERY_LOW = "android.intent.action.BATTERY_LOW";
     /**
+     * Broadcast Action:  External power has been connected to the device.
+     * This is intended for applications that wish to register specifically to this notification.
+     * Unlike ACTION_BATTERY_CHANGED, applications will be woken for this and so do not have to
+     * stay active to receive this notification.  This action can be used to implement actions
+     * that wait until power is available to trigger.
+     */
+    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
+    public static final String ACTION_POWER_CONNECTED = "android.intent.action.ACTION_POWER_CONNECTED";
+    /**
+     * Broadcast Action:  External power has been removed from the device.
+     * This is intended for applications that wish to register specifically to this notification.
+     * Unlike ACTION_BATTERY_CHANGED, applications will be woken for this and so do not have to
+     * stay active to receive this notification.  This action can be used to implement actions
+     * that wait until power is available to trigger. 
+     */
+    @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
+    public static final String ACTION_POWER_DISCONNECTED = "android.intent.action.ACTION_POWER_DISCONNECTED";    
+    /**
      * Broadcast Action:  Indicates low memory condition on the device
      */
     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
diff --git a/services/java/com/android/server/BatteryService.java b/services/java/com/android/server/BatteryService.java
index 608299c8ce6f..faa820829750 100644
--- a/services/java/com/android/server/BatteryService.java
+++ b/services/java/com/android/server/BatteryService.java
@@ -149,6 +149,16 @@ class BatteryService extends Binder {
                         mBatteryLevel, mBatteryVoltage, mBatteryTemperature);
             }
             
+            // Separate broadcast is sent for power connected / not connected
+            // since the standard intent will not wake any applications and some
+            // applications may want to have smart behavior based on this.
+            if (mPlugType != 0 && mLastPlugType == 0) {
+                mContext.sendBroadcast(new Intent(Intent.ACTION_POWER_CONNECTED));
+            }
+            else if (mPlugType == 0 && mLastPlugType != 0) {
+                mContext.sendBroadcast(new Intent(Intent.ACTION_POWER_DISCONNECTED));
+            }
+            
             mLastBatteryStatus = mBatteryStatus;
             mLastBatteryHealth = mBatteryHealth;
             mLastBatteryPresent = mBatteryPresent;
-- 
2.11.0