Add a default Dreams component.

Currently set to DeskClock's screensaver, but since it's a
(private) string in f/b/c/r/r/values/config.xml any product
could overlay this.

Bug: 5611008
Change-Id: I7a4623c9c667a6cff8ed80ad600a8a4460bfafb7

Author: dsandler

core/res/res/values/config.xml

@@ -741,4 +741,7 @@
     <string name="config_wimaxServiceClassname"></string>
     <!-- Name of the wimax state tracker clas -->
     <string name="config_wimaxStateTrackerClassname"></string>
+
+    <!-- Name of screensaver components to look for if none has been chosen by the user -->
+    <string name="config_defaultDreamComponent">com.google.android.deskclock/com.android.deskclock.Screensaver</string>
 </resources>

packages/SystemUI/AndroidManifest.xml

@@ -48,6 +48,7 @@
 
         <!-- handle dock insertion, launch screensaver instead -->
         <activity android:name=".DreamsDockLauncher"
+                android:theme="@android:style/Theme.Dialog"
                 android:label="@string/dreams_dock_launcher">
             <intent-filter>
                 <action android:name="android.intent.action.MAIN" />
@@ -124,7 +125,7 @@
             <intent-filter>
                 <action android:name="android.intent.action.MAIN" />
                 <category android:name="android.intent.category.DEFAULT" />
-                <category android:name="android.intent.category.DREAM" />
+<!--                <category android:name="android.intent.category.DREAM" />-->
             </intent-filter>
         </activity>
     </application>

packages/SystemUI/src/com/android/systemui/DreamsDockLauncher.java

@@ -18,6 +18,9 @@ protected void onCreate (Bundle icicle) {
         try {
             String component = Settings.Secure.getString(
                     getContentResolver(), Settings.Secure.DREAM_COMPONENT);
+            if (component == null) {
+                component = getResources().getString(com.android.internal.R.string.config_defaultDreamComponent);
+            }
             if (component != null) {
                 ComponentName cn = ComponentName.unflattenFromString(component);
                 Intent zzz = new Intent(Intent.ACTION_MAIN)

policy/src/com/android/internal/policy/impl/PhoneWindowManager.java

@@ -3409,6 +3409,9 @@ public void run() {
             try {
                 String component = Settings.Secure.getString(
                         mContext.getContentResolver(), Settings.Secure.DREAM_COMPONENT);
+                if (component == null) {
+                    component = mContext.getResources().getString(R.string.config_defaultDreamComponent);
+                }
                 if (component != null) {
                     ComponentName cn = ComponentName.unflattenFromString(component);
                     Intent intent = new Intent(Intent.ACTION_MAIN)