Add "All services" settings in the App Preference screen for GmsCore.

BUG: 188920241

Test: N/A

Change-Id: Icf475f4a6c7498cd9782524806b0335e9cb0f8fc

src/com/android/settings/applications/appinfo/AppAllServicesPreferenceController.java

@@ -0,0 +1,168 @@
+/*
+ * Copyright (C) 2022 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.applications.appinfo;
+
+import android.app.Activity;
+import android.content.ActivityNotFoundException;
+import android.content.ComponentName;
+import android.content.Context;
+import android.content.Intent;
+import android.content.pm.PackageManager;
+import android.content.pm.ResolveInfo;
+import android.content.res.Resources;
+import android.location.LocationManager;
+import android.os.Bundle;
+import android.util.Log;
+
+import androidx.annotation.Nullable;
+import androidx.annotation.VisibleForTesting;
+import androidx.preference.Preference;
+import androidx.preference.PreferenceScreen;
+
+import java.util.Objects;
+
+/**
+ * Preference Controller for the "All Services" preference in the "App Info" page.
+ */
+public class AppAllServicesPreferenceController extends AppInfoPreferenceControllerBase {
+
+    private static final String TAG = "AllServicesPrefControl";
+    private static final String SUMMARY_METADATA_KEY = "app_features_preference_summary";
+
+    private final PackageManager mPackageManager;
+
+    private String mPackageName;
+
+    private boolean mCanPackageHandleAllServicesIntent;
+    private boolean mIsLocationProvider;
+
+
+    public AppAllServicesPreferenceController(Context context,
+            String preferenceKey) {
+        super(context, preferenceKey);
+        mPackageManager = context.getPackageManager();
+
+        // Set to false till we can confirm that the package can handle the intent.
+        mCanPackageHandleAllServicesIntent = false;
+        // Set to false till we can confirm that the package is a location provider.
+        mIsLocationProvider = false;
+    }
+
+    @Override
+    public void displayPreference(PreferenceScreen screen) {
+        super.displayPreference(screen);
+        CharSequence summary = getStorageSummary();
+        if (summary != null) {
+            mPreference.setSummary(summary);
+        }
+    }
+
+    @VisibleForTesting
+    @Nullable
+    CharSequence getStorageSummary() {
+        ResolveInfo resolveInfo = getResolveInfo(PackageManager.GET_META_DATA);
+        if (resolveInfo == null) {
+            Log.d(TAG, "mResolveInfo is null.");
+            return null;
+        }
+        final Bundle metaData = resolveInfo.activityInfo.metaData;
+        if (metaData != null) {
+            try {
+                final Resources pkgRes = mPackageManager.getResourcesForActivity(
+                        new ComponentName(mPackageName, resolveInfo.activityInfo.name));
+                return pkgRes.getString(metaData.getInt(SUMMARY_METADATA_KEY));
+            } catch (Resources.NotFoundException exception) {
+                Log.d(TAG, "Resource not found for summary string.");
+            } catch (PackageManager.NameNotFoundException exception) {
+                Log.d(TAG, "Name of resource not found for summary string.");
+            }
+        }
+        return null;
+    }
+
+    @Override
+    public int getAvailabilityStatus() {
+        if (mCanPackageHandleAllServicesIntent && mIsLocationProvider) {
+            return AVAILABLE;
+        }
+        return CONDITIONALLY_UNAVAILABLE;
+    }
+
+    private boolean isLocationProvider() {
+        return Objects.requireNonNull(
+                mContext.getSystemService(LocationManager.class)).isProviderPackage(mPackageName);
+    }
+
+    private boolean canPackageHandleIntent() {
+        return getResolveInfo(0) != null;
+    }
+
+    @Override
+    public boolean handlePreferenceTreeClick(Preference preference) {
+        if (getPreferenceKey().equals(preference.getKey())) {
+            startAllServicesActivity();
+            return true;
+        }
+        return false;
+    }
+
+    /**
+     * Set the package name of the package for which the "All Services" activity needs to be shown.
+     *
+     * @param packageName Name of the package for which the services need to be shown.
+     */
+    public void setPackageName(String packageName) {
+        mPackageName = packageName;
+
+        //Once we have package name. Update conditions for availability.
+        updateAvailabilityConditions();
+    }
+
+    private void updateAvailabilityConditions() {
+        mCanPackageHandleAllServicesIntent = canPackageHandleIntent();
+        mIsLocationProvider = isLocationProvider();
+    }
+
+    private void startAllServicesActivity() {
+        final Intent featuresIntent = new Intent(Intent.ACTION_VIEW_APP_FEATURES);
+        // This won't be null since the preference is only shown for packages that can handle the
+        // intent.
+        ResolveInfo resolveInfo = getResolveInfo(0);
+        featuresIntent.setComponent(
+                new ComponentName(mPackageName, resolveInfo.activityInfo.name));
+
+        Activity activity = mParent.getActivity();
+        try {
+            if (activity != null) {
+                activity.startActivity(featuresIntent);
+            }
+        } catch (ActivityNotFoundException e) {
+            Log.e(TAG, "The app cannot handle android.intent.action.VIEW_APP_FEATURES");
+        }
+    }
+
+    @Nullable
+    private ResolveInfo getResolveInfo(int flags) {
+        if (mPackageName == null) {
+            return null;
+        }
+        final Intent featuresIntent = new Intent(Intent.ACTION_VIEW_APP_FEATURES);
+        featuresIntent.setPackage(mPackageName);
+
+        return mPackageManager.resolveActivity(featuresIntent, flags);
+    }
+}