Check the ACTIVATE_ON_DOCK setting in DockObserver.

Otherwise docking the device will always launch a Dream.

Change-Id: I2e74ca62f80d7e386d11c00920a75a5a6e78926c

Author: John Spurlock

services/java/com/android/server/DockObserver.java

@@ -16,6 +16,8 @@
 
 package com.android.server;
 
+import static android.provider.Settings.Secure.SCREENSAVER_ACTIVATE_ON_DOCK;
+
 import com.android.server.power.PowerManagerService;
 
 import android.bluetooth.BluetoothAdapter;
@@ -51,6 +53,8 @@ class DockObserver extends UEventObserver {
     private static final String DOCK_UEVENT_MATCH = "DEVPATH=/devices/virtual/switch/dock";
     private static final String DOCK_STATE_PATH = "/sys/class/switch/dock/state";
 
+    private static final int DEFAULT_DOCK = 1;
+
     private static final int MSG_DOCK_STATE = 0;
 
     private int mDockState = Intent.EXTRA_DOCK_STATE_UNDOCKED;
@@ -131,6 +135,11 @@ private final void update() {
         mHandler.sendEmptyMessage(MSG_DOCK_STATE);
     }
 
+    private static boolean isScreenSaverActivatedOnDock(Context context) {
+        return 0 != Settings.Secure.getInt(
+                    context.getContentResolver(), SCREENSAVER_ACTIVATE_ON_DOCK, DEFAULT_DOCK);
+    }
+
     private final Handler mHandler = new Handler() {
         @Override
         public void handleMessage(Message msg) {
@@ -210,10 +219,12 @@ public void handleMessage(Message msg) {
                                     Slog.w(TAG, "Unable to awaken!", e);
                                 }
                             } else {
-                                try {
-                                    mgr.dream();
-                                } catch (RemoteException e) {
-                                    Slog.w(TAG, "Unable to dream!", e);
+                                if (isScreenSaverActivatedOnDock(mContext)) {
+                                    try {
+                                        mgr.dream();
+                                    } catch (RemoteException e) {
+                                        Slog.w(TAG, "Unable to dream!", e);
+                                    }
                                 }
                             }
                         } else {