Add Activity Intent.ACTION_REQUEST_SHUTDOWN for requesting a system shutdown.

The Intent.EXTRA_KEY_CONFIRM extra can be set to require user confirmation before shutting down.
The ACTION_REQUEST_SHUTDOWN Intent is protected by android.permission.SHUTDOWN.

Signed-off-by: Mike Lockwood <lockwood@android.com>

core/java/android/content/Intent.java

@@ -1408,6 +1408,17 @@ public class Intent implements Parcelable {
      */
     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
     public static final String ACTION_SHUTDOWN = "android.intent.action.ACTION_SHUTDOWN";
+    /**
+     * Activity Action:  Start this activity to request system shutdown.
+     * The optional boolean extra field {@link #EXTRA_KEY_CONFIRM} can be set to true
+     * to request confirmation from the user before shutting down.
+     *
+     * <p class="note">This is a protected intent that can only be sent
+     * by the system.
+     *
+     * {@hide}
+     */
+    public static final String ACTION_REQUEST_SHUTDOWN = "android.intent.action.ACTION_REQUEST_SHUTDOWN";
     /**
      * Broadcast Action:  Indicates low memory condition on the device
      * 
@@ -1892,6 +1903,14 @@ public class Intent implements Parcelable {
      */
     public static final String EXTRA_KEY_EVENT = "android.intent.extra.KEY_EVENT";
 
+    /**
+     * Set to true in {@link #ACTION_REQUEST_SHUTDOWN} to request confirmation from the user
+     * before shutting down.
+     *
+     * {@hide}
+     */
+    public static final String EXTRA_KEY_CONFIRM = "android.intent.extra.KEY_CONFIRM";
+
     /**
      * Used as an boolean extra field in {@link android.content.Intent#ACTION_PACKAGE_REMOVED} or
      * {@link android.content.Intent#ACTION_PACKAGE_CHANGED} intents to override the default action

core/res/AndroidManifest.xml

@@ -1130,6 +1130,16 @@
                 android:exported="true">
         </activity>
 
+        <activity android:name="com.android.server.ShutdownActivity"
+            android:permission="android.permission.SHUTDOWN"
+            android:excludeFromRecents="true"
+            android:multiprocess="true">
+            <intent-filter>
+                <action android:name="android.intent.action.ACTION_REQUEST_SHUTDOWN" />
+                <category android:name="android.intent.category.DEFAULT" />
+            </intent-filter>
+        </activity>
+
         <service android:name="com.android.server.LoadAverageService"
             android:exported="true" />
 

services/java/com/android/server/ShutdownActivity.java

@@ -0,0 +1,46 @@
+/*
+ * Copyright (C) 2009 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.server;
+
+import android.app.Activity;
+import android.content.BroadcastReceiver;
+import android.content.Intent;
+import android.os.Bundle;
+import android.os.Handler;
+import android.util.Log;
+import com.android.internal.app.ShutdownThread;
+
+public class ShutdownActivity extends Activity {
+
+    private static final String TAG = "ShutdownActivity";
+    private boolean mConfirm;
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+
+        mConfirm = getIntent().getBooleanExtra(Intent.EXTRA_KEY_CONFIRM, false);
+        Log.i(TAG, "onCreate(): confirm=" + mConfirm);
+
+        Handler h = new Handler();
+        h.post(new Runnable() {
+            public void run() {
+                ShutdownThread.shutdown(ShutdownActivity.this, mConfirm);
+            }
+        });
+    }
+}