Hide TARE page when disabled.

Hide the TARE page option when TARE is disabled or the page is
explicitly flagged to be shown.

Bug: 270498386
Bug: 270964794
Test: manually modify flags and check if TARE option shows
Change-Id: Icc23a34ff1b9af5f1ddb649c4aefbea22a123498

res/xml/development_settings.xml

@@ -669,9 +669,6 @@
         <Preference
             android:key="tare"
             android:title="@string/tare_title" >
-            <intent
-                android:targetPackage="com.android.settings"
-                android:targetClass="com.android.settings.development.tare.TareHomePage" />
         </Preference>
 
         <SwitchPreference

src/com/android/settings/development/DevelopmentSettingsDashboardFragment.java

@@ -666,6 +666,7 @@ public class DevelopmentSettingsDashboardFragment extends RestrictedDashboardFra
         controllers.add(new DefaultLaunchPreferenceController(context, "density"));
         controllers.add(new DefaultLaunchPreferenceController(context, "background_check"));
         controllers.add(new DefaultLaunchPreferenceController(context, "inactive_apps"));
+        controllers.add(new TarePreferenceController(context));
         controllers.add(new AutofillCategoryController(context, lifecycle));
         controllers.add(new AutofillLoggingLevelPreferenceController(context, lifecycle));
         controllers.add(new AutofillResetOptionsPreferenceController(context));

src/com/android/settings/development/TarePreferenceController.java

@@ -0,0 +1,70 @@
+/*
+ * Copyright (C) 2023 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.development;
+
+import android.app.tare.EconomyManager;
+import android.content.Context;
+import android.content.Intent;
+import android.os.UserManager;
+import android.provider.Settings;
+
+import androidx.preference.Preference;
+
+import com.android.settings.core.PreferenceControllerMixin;
+import com.android.settings.development.tare.TareHomePage;
+import com.android.settingslib.development.DeveloperOptionsPreferenceController;
+
+/** PreferenceController that serves as an entry point to the TARE configuration screen. */
+public class TarePreferenceController extends
+        DeveloperOptionsPreferenceController implements PreferenceControllerMixin {
+
+    private static final String KEY_TARE = "tare";
+
+    private final EconomyManager mEconomyManager;
+    private final UserManager mUserManager;
+
+    public TarePreferenceController(Context context) {
+        super(context);
+        mEconomyManager = context.getSystemService(EconomyManager.class);
+        mUserManager = context.getSystemService(UserManager.class);
+    }
+
+    @Override
+    public boolean isAvailable() {
+        // Enable the UI if the dedicated flag enables it or if TARE itself is on.
+        final boolean settingEnabled = Settings.Global.getInt(
+                mContext.getContentResolver(), Settings.Global.SHOW_TARE_DEVELOPER_OPTIONS, 0) == 1;
+        final boolean isTareUiEnabled = settingEnabled
+                || mEconomyManager.getEnabledMode() != EconomyManager.ENABLED_MODE_OFF;
+        return isTareUiEnabled
+                && !mUserManager.hasUserRestriction(UserManager.DISALLOW_DEBUGGING_FEATURES);
+    }
+
+    @Override
+    public String getPreferenceKey() {
+        return KEY_TARE;
+    }
+
+    @Override
+    public boolean handlePreferenceTreeClick(Preference preference) {
+        if (!KEY_TARE.equals(preference.getKey())) {
+            return false;
+        }
+        mContext.startActivity(new Intent(mContext, TareHomePage.class));
+        return false;
+    }
+}