[Dynamic Home] Make a new page for all top level settings

Since we are moving conditionals/suggestions to a different place, there
is no need to use DashboardSummary to display top level settings any
more. We can simplify a lot of code for top level settings and reduce it
to a standard DashboardFragment.

- Create a new DashboardFragment + xml for all top level internal items
- Add a PreferenceController to provide summary for Network & internet
  item.
- Mark a bunch of things deprecated for future work.

Bug: 110405144
Test: robotests
Change-Id: I9f778777131c28eb836b722e089e026a59f5ddc6

src/com/android/settings/homepage/TopLevelSettings.java

@@ -0,0 +1,110 @@
+/*
+ * Copyright (C) 2018 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.homepage;
+
+import static com.android.settings.search.actionbar.SearchMenuController
+        .NEED_SEARCH_ICON_IN_ACTION_BAR;
+import static com.android.settingslib.search.SearchIndexable.MOBILE;
+
+import android.content.Context;
+import android.os.Bundle;
+import android.provider.SearchIndexableResource;
+
+import androidx.fragment.app.Fragment;
+import androidx.preference.Preference;
+import androidx.preference.PreferenceFragmentCompat;
+
+import com.android.internal.logging.nano.MetricsProto;
+import com.android.settings.R;
+import com.android.settings.core.SubSettingLauncher;
+import com.android.settings.dashboard.DashboardFragment;
+import com.android.settings.search.BaseSearchIndexProvider;
+import com.android.settingslib.core.instrumentation.Instrumentable;
+import com.android.settingslib.search.SearchIndexable;
+
+import java.util.Arrays;
+import java.util.List;
+
+@SearchIndexable(forTarget = MOBILE)
+public class TopLevelSettings extends DashboardFragment implements
+        PreferenceFragmentCompat.OnPreferenceStartFragmentCallback {
+
+    private static final String TAG = "TopLevelSettings";
+
+    public TopLevelSettings() {
+        final Bundle args = new Bundle();
+        // Disable the search icon because this page uses a full search view in actionbar.
+        args.putBoolean(NEED_SEARCH_ICON_IN_ACTION_BAR, false);
+        setArguments(args);
+    }
+
+    @Override
+    protected int getPreferenceScreenResId() {
+        return R.xml.top_level_settings;
+    }
+
+    @Override
+    protected String getLogTag() {
+        return TAG;
+    }
+
+    @Override
+    public int getMetricsCategory() {
+        return MetricsProto.MetricsEvent.DASHBOARD_SUMMARY;
+    }
+
+    @Override
+    public int getHelpResource() {
+        // Disable the help icon because this page uses a full search view in actionbar.
+        return 0;
+    }
+
+    @Override
+    public Fragment getCallbackFragment() {
+        return this;
+    }
+
+    @Override
+    public boolean onPreferenceStartFragment(PreferenceFragmentCompat caller, Preference pref) {
+        new SubSettingLauncher(getActivity())
+                .setDestination(pref.getFragment())
+                .setArguments(pref.getExtras())
+                .setSourceMetricsCategory(caller instanceof Instrumentable
+                        ? ((Instrumentable) caller).getMetricsCategory()
+                        : Instrumentable.METRICS_CATEGORY_UNKNOWN)
+                .setTitleRes(-1)
+                .launch();
+        return true;
+    }
+
+    public static final SearchIndexProvider SEARCH_INDEX_DATA_PROVIDER =
+            new BaseSearchIndexProvider() {
+                @Override
+                public List<SearchIndexableResource> getXmlResourcesToIndex(
+                        Context context, boolean enabled) {
+                    final SearchIndexableResource sir = new SearchIndexableResource(context);
+                    sir.xmlResId = R.xml.top_level_settings;
+                    return Arrays.asList(sir);
+                }
+
+                @Override
+                protected boolean isPageSearchEnabled(Context context) {
+                    // Never searchable, all entries in this page are already indexed elsewhere.
+                    return false;
+                }
+            };
+}