Add feature provider for dashboard.

The feature provider contains API that controls whether a new
information architecture should be used. By default it's false.

Bug: 31768091
Test: make RunSettingsRoboTests
Change-Id: I5b177be418def50d877f53dc799e42d06eba95ec

src/com/android/settings/dashboard/DashboardFeatureProvider.java

@@ -0,0 +1,26 @@
+/*
+ * Copyright (C) 2016 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.settings.dashboard;
+
+import android.content.Context;
+
+/**
+ * FeatureProvider for dashboard (aka settings homepage).
+ */
+public interface DashboardFeatureProvider {
+
+    boolean shouldUseNewIALayout(Context context);
+}

src/com/android/settings/dashboard/DashboardFeatureProviderImpl.java

@@ -0,0 +1,31 @@
+/*
+ * Copyright (C) 2015 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.settings.dashboard;
+
+import android.content.Context;
+
+/**
+ * Impl for {@code DashboardFeatureProvider}.
+ */
+public class DashboardFeatureProviderImpl implements DashboardFeatureProvider {
+
+    @Override
+    public boolean shouldUseNewIALayout(Context context) {
+        return false;
+    }
+
+}

src/com/android/settings/overlay/FeatureFactory.java

@@ -22,6 +22,7 @@ import android.util.Log;
 
 import com.android.settings.R;
 import com.android.settings.core.instrumentation.MetricsFeatureProvider;
+import com.android.settings.dashboard.DashboardFeatureProvider;
 import com.android.settings.fuelgauge.PowerUsageFeatureProvider;
 
 /**
@@ -67,6 +68,8 @@ public abstract class FeatureFactory {
 
     public abstract PowerUsageFeatureProvider getPowerUsageFeatureProvider();
 
+    public abstract DashboardFeatureProvider getDashboardFeatureProvider();
+
     public static final class FactoryNotFoundException extends RuntimeException {
         public FactoryNotFoundException(Throwable throwable) {
             super("Unable to create factory. Did you misconfigure Proguard?", throwable);

src/com/android/settings/overlay/FeatureFactoryImpl.java

@@ -21,6 +21,8 @@ import android.support.annotation.Keep;
 
 import com.android.settings.core.instrumentation.MetricsFeatureProvider;
 import com.android.settings.core.instrumentation.MetricsFeatureProviderImpl;
+import com.android.settings.dashboard.DashboardFeatureProvider;
+import com.android.settings.dashboard.DashboardFeatureProviderImpl;
 import com.android.settings.fuelgauge.PowerUsageFeatureProvider;
 
 /**
@@ -30,6 +32,7 @@ import com.android.settings.fuelgauge.PowerUsageFeatureProvider;
 public final class FeatureFactoryImpl extends FeatureFactory {
 
     private MetricsFeatureProvider mMetricsFeatureProvider;
+    private DashboardFeatureProviderImpl mDashboardFeatureProvider;
 
     @Override
     public SupportFeatureProvider getSupportFeatureProvider(Context context) {
@@ -49,4 +52,12 @@ public final class FeatureFactoryImpl extends FeatureFactory {
         return null;
     }
 
+    @Override
+    public DashboardFeatureProvider getDashboardFeatureProvider() {
+        if (mDashboardFeatureProvider == null) {
+            mDashboardFeatureProvider = new DashboardFeatureProviderImpl();
+        }
+        return mDashboardFeatureProvider;
+    }
+
 }