Wait for Keyguard to be drawn after boot.

The old logic with waiting for the Keyguard to be drawn assumed that
it is in an own window, and just checked for the visibility. This is
no longer possible as the Keyguard is in the status bar, and the status
bar might have been drawn without the Keyguard. So we have to wait
explicitely until Keyguard told PhoneWindowManager that it has now been
drawn and we can turn on the screen.

In addition, the starting logic of SystemUI is moved into
SystemUIApplication such the we can make sure that the status bar
already exists when the callbacks from PhoneWindowManager reach
KeyguardService. This simplifies the logic a lot.

Bug: 13635952
Change-Id: Ifd6ba795647edcf3501641e39052e4d04bc826fb
diff --git a/packages/SystemUI/src/com/android/systemui/SystemUIService.java b/packages/SystemUI/src/com/android/systemui/SystemUIService.java
index ca5f7d1..da8654c 100644
--- a/packages/SystemUI/src/com/android/systemui/SystemUIService.java
+++ b/packages/SystemUI/src/com/android/systemui/SystemUIService.java
@@ -18,65 +18,13 @@
 
 import android.app.Service;
 import android.content.Intent;
-import android.content.res.Configuration;
 import android.os.IBinder;
-import android.util.Log;
 
 import java.io.FileDescriptor;
 import java.io.PrintWriter;
-import java.util.HashMap;
 
 public class SystemUIService extends Service {
-    private static final String TAG = "SystemUIService";
 
-    /**
-     * The classes of the stuff to start.
-     */
-    private final Class<?>[] SERVICES = new Class[] {
-            com.android.systemui.recent.Recents.class,
-            com.android.systemui.statusbar.SystemBars.class,
-            com.android.systemui.usb.StorageNotification.class,
-            com.android.systemui.power.PowerUI.class,
-            com.android.systemui.media.RingtonePlayer.class,
-            com.android.systemui.settings.SettingsUI.class,
-        };
-
-    /**
-     * Hold a reference on the stuff we start.
-     */
-    private final SystemUI[] mServices = new SystemUI[SERVICES.length];
-
-    @Override
-    public void onCreate() {
-        HashMap<Class<?>, Object> components = new HashMap<Class<?>, Object>();
-        final int N = SERVICES.length;
-        for (int i=0; i<N; i++) {
-            Class<?> cl = SERVICES[i];
-            Log.d(TAG, "loading: " + cl);
-            try {
-                mServices[i] = (SystemUI)cl.newInstance();
-            } catch (IllegalAccessException ex) {
-                throw new RuntimeException(ex);
-            } catch (InstantiationException ex) {
-                throw new RuntimeException(ex);
-            }
-            mServices[i].mContext = this;
-            mServices[i].mComponents = components;
-            Log.d(TAG, "running: " + mServices[i]);
-            mServices[i].start();
-        }
-    }
-
-    @Override
-    public void onConfigurationChanged(Configuration newConfig) {
-        for (SystemUI ui: mServices) {
-            ui.onConfigurationChanged(newConfig);
-        }
-    }
-
-    /**
-     * Nobody binds to us.
-     */
     @Override
     public IBinder onBind(Intent intent) {
         return null;
@@ -84,14 +32,15 @@
 
     @Override
     protected void dump(FileDescriptor fd, PrintWriter pw, String[] args) {
+        SystemUI[] services = ((SystemUIApplication) getApplication()).getServices();
         if (args == null || args.length == 0) {
-            for (SystemUI ui: mServices) {
+            for (SystemUI ui: services) {
                 pw.println("dumping service: " + ui.getClass().getName());
                 ui.dump(fd, pw, args);
             }
         } else {
             String svc = args[0];
-            for (SystemUI ui: mServices) {
+            for (SystemUI ui: services) {
                 String name = ui.getClass().getName();
                 if (name.endsWith(svc)) {
                     ui.dump(fd, pw, args);