Hide Zeus mode for non-Zeus

app/src/main/java/be/ugent/zeus/hydra/MainActivity.java

@@ -60,6 +60,7 @@
 import com.google.android.material.navigation.NavigationView;
 import com.google.android.material.shape.MaterialShapeDrawable;
 import com.google.android.material.tabs.TabLayout;
+import be.ugent.zeus.hydra.wpi.EnableManager;
 import be.ugent.zeus.hydra.wpi.WpiActivity;
 import dev.chrisbanes.insetter.Insetter;
 import jonathanfinerty.once.Once;
@@ -188,7 +189,6 @@ public class MainActivity extends BaseActivity<ActivityMainBinding> implements N
     static final String ONCE_DRAWER = "once_drawer";
     private static final String TAG = "BaseActivity";
     private static final String UFORA = "com.d2l.brightspace.student.android";
-    private static final int ONBOARDING_REQUEST = 5;
     private static final String STATE_IS_ONBOARDING_OPEN = "state_is_onboarding_open";
     private static final String FRAGMENT_MENU_ID = "backStack";
 
@@ -197,6 +197,9 @@ public class MainActivity extends BaseActivity<ActivityMainBinding> implements N
     private static final String SHORTCUT_EVENTS = "events";
     private static final String SHORTCUT_LIBRARIES = "libraries";
 
+    private static final int ONBOARDING_REQUEST = 5;
+    private static final int PREFERENCES_REQUEST = 5693;
+
     private ActionBarDrawerToggle toggle;
 
     private boolean isOnboardingOpen;
@@ -278,6 +281,8 @@ public void onDrawerClosed(View drawerView) {
                 }
             }
         });
+
+        updateMenuVisibility();
 
         // If the instance is null, we must initialise a fragment, otherwise android does it for us.
         if (savedInstanceState == null) {
@@ -303,6 +308,12 @@ public void onDrawerClosed(View drawerView) {
             binding.drawerLayout.openDrawer(GravityCompat.START);
         }
     }
+
+    private void updateMenuVisibility() {
+        // Show Zeus-mode if enabled.
+        MenuItem item = binding.navigationView.getMenu().findItem(R.id.drawer_zeus);
+        item.setVisible(EnableManager.isZeusModeEnabled(this));
+    }
 
     @Override
     protected void onPostCreate(@Nullable Bundle savedInstanceState) {
@@ -336,7 +347,8 @@ private void selectDrawerItem(@NonNull MenuItem menuItem, @NavigationSource int
         // First check if it are settings, then we don't update anything.
         if (menuItem.getItemId() == R.id.drawer_pref) {
             binding.drawerLayout.closeDrawer(GravityCompat.START);
-            PreferenceActivity.start(this, null);
+            Intent preferenceIntent = PreferenceActivity.startIntent(this, null);
+            startActivityForResult(preferenceIntent, PREFERENCES_REQUEST);
             return;
         }
 
@@ -559,6 +571,9 @@ protected void onActivityResult(int requestCode, int resultCode, Intent data) {
                 Log.w(TAG, "Onboarding failed, stop app.");
                 finish();
             }
+        } else if (requestCode == PREFERENCES_REQUEST) {
+            // Don't care about the actual status.
+            updateMenuVisibility();
         }
         // We need to call this for the fragments to work properly.
         super.onActivityResult(requestCode, resultCode, data);

app/src/main/java/be/ugent/zeus/hydra/preferences/AboutFragment.java

@@ -24,20 +24,27 @@
 
 import android.content.Intent;
 import android.os.Bundle;
+import android.widget.Toast;
 import androidx.appcompat.content.res.AppCompatResources;
 import androidx.preference.Preference;
 
+import java.util.concurrent.atomic.AtomicInteger;
+
 import be.ugent.zeus.hydra.BuildConfig;
 import be.ugent.zeus.hydra.R;
 import be.ugent.zeus.hydra.common.reporting.Reporting;
 import be.ugent.zeus.hydra.common.ui.PreferenceFragment;
 import be.ugent.zeus.hydra.common.ui.WebViewActivity;
+import be.ugent.zeus.hydra.common.utils.NetworkUtils;
+import be.ugent.zeus.hydra.wpi.EnableManager;
 
 /**
  * @author Niko Strijbol
  */
 public class AboutFragment extends PreferenceFragment {
 
+    private static final int ZEUS_TIMES = 2;
+
     @Override
     public void onCreatePreferences(Bundle savedInstanceState, String rootKey) {
         setPreferencesFromResource(R.xml.pref_about, rootKey);
@@ -59,6 +66,29 @@ public void onCreatePreferences(Bundle savedInstanceState, String rootKey) {
             return false;
         });
 
+        // Ugly one-element array.
+        final AtomicInteger counter = new AtomicInteger();
+
+        // If Zeus-mode is enabled, link to the site.
+        // Otherwise, allow enabling it.
+        requirePreference("pref_about_creator_zeus").setOnPreferenceClickListener(preference -> {
+            if (EnableManager.isZeusModeEnabled(requireContext())) {
+                Toast.makeText(requireContext(), R.string.wpi_mode_enabled, Toast.LENGTH_SHORT).show();
+                NetworkUtils.maybeLaunchBrowser(requireContext(), "https://zeus.ugent.be");
+            } else {
+                int newValue = counter.incrementAndGet();
+                int remaining = ZEUS_TIMES - newValue;
+                if (remaining == 0) {
+                    EnableManager.setZeusModeEnabled(requireContext(), true);
+                    Toast.makeText(requireContext(), R.string.wpi_mode_enabled, Toast.LENGTH_SHORT).show();
+                } else {
+                    String message = requireContext().getResources().getQuantityString(R.plurals.wpi_mode_press, remaining, remaining);
+                    Toast.makeText(requireContext(), message, Toast.LENGTH_SHORT).show();
+                }
+            }
+            return true;
+        });
+
         requirePreference("pref_about_creator_zeus")
                 .setIcon(AppCompatResources.getDrawable(requireContext(), R.drawable.logo_zeus));
         requirePreference("pref_about_creator_dsa")

app/src/main/java/be/ugent/zeus/hydra/preferences/PreferenceActivity.java

@@ -51,13 +51,19 @@ public class PreferenceActivity extends BaseActivity<ActivityPreferencesBinding>
     private PreferenceEntry entry;
 
     public static void start(@NonNull Context context, @Nullable PreferenceEntry entry) {
+        Intent intent = startIntent(context, entry);
+        context.startActivity(intent);
+    }
+
+    public static Intent startIntent(@NonNull Context context, @Nullable PreferenceEntry entry) {
         Intent intent = new Intent(context, PreferenceActivity.class);
         if (entry != null) {
             intent.putExtra(ARG_FRAGMENT, (Parcelable) entry);
         }
-        context.startActivity(intent);
+        return intent;
     }
 
+
     @Override
     protected void onCreate(@Nullable Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);

app/src/main/java/be/ugent/zeus/hydra/wpi/EnableManager.java

@@ -0,0 +1,72 @@
+/*
+ * Copyright (c) 2022 Niko Strijbol
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+package be.ugent.zeus.hydra.wpi;
+
+import android.content.Context;
+import android.content.Intent;
+import android.content.SharedPreferences;
+import androidx.core.content.pm.ShortcutInfoCompat;
+import androidx.core.content.pm.ShortcutManagerCompat;
+import androidx.core.graphics.drawable.IconCompat;
+import androidx.preference.PreferenceManager;
+
+import java.util.Collections;
+
+import be.ugent.zeus.hydra.R;
+
+/**
+ * Utilities to check if Zeus-mode has been enabled or not.
+ *
+ * @author Niko Strijbol
+ */
+public class EnableManager {
+    private static final String PREF_ENABLE_ZEUS_MODE = "pref_enable_zeus_mode";
+    private static final String ZEUS_SHORTCUT_ID = "be.ugent.zeus.hydra.shortcut.wpi";
+
+    private EnableManager() {
+        // No.
+    }
+
+    public static boolean isZeusModeEnabled(Context context) {
+        SharedPreferences preferences = PreferenceManager.getDefaultSharedPreferences(context);
+        return preferences.getBoolean(PREF_ENABLE_ZEUS_MODE, false);
+    }
+
+    public static void setZeusModeEnabled(Context context, boolean enabled) {
+        if (enabled) {
+            ShortcutInfoCompat shortcut = new ShortcutInfoCompat.Builder(context, ZEUS_SHORTCUT_ID)
+                    .setShortLabel("Zeus WPI")
+                    .setLongLabel(context.getString(R.string.drawer_title_zeus))
+                    .setIcon(IconCompat.createWithResource(context, R.drawable.logo_tap))
+                    .setIntent(new Intent(Intent.ACTION_VIEW, null, context, WpiActivity.class))
+                    .build();
+            ShortcutManagerCompat.pushDynamicShortcut(context, shortcut);
+        } else {
+            ShortcutManagerCompat.removeDynamicShortcuts(context, Collections.singletonList(ZEUS_SHORTCUT_ID));
+        }
+        SharedPreferences preferences = PreferenceManager.getDefaultSharedPreferences(context);
+        preferences.edit()
+                .putBoolean(PREF_ENABLE_ZEUS_MODE, enabled)
+                .apply();
+    }
+}

app/src/main/res/menu/drawer_items.xml

@@ -60,6 +60,7 @@
             android:icon="@drawable/tabs_info"
             android:title="@string/drawer_title_info" />
         <item
+            android:visible="false"
             android:id="@+id/drawer_zeus"
             android:checkable="false"
             android:icon="@drawable/logo_zeus"

app/src/main/res/values-en/strings.xml

@@ -355,7 +355,11 @@
     <string name="wpi_tap_form_error">There was an error while creating the order. Check that the order has not been saved before trying it again.</string>
     <string name="wpi_tap_order_ok">Ordered for %1$s</string>
     <string name="wpi_tap_form_confirm">Sure? The total of your order is %1$s.</string>
-
+    <string name="wpi_mode_enabled">Zeus mode is enabled.</string>
+    <plurals name="wpi_mode_press">
+        <item quantity="one">Press %d more time…</item>
+        <item quantity="other">Press %d more times…</item>
+    </plurals>
 
     <!-- Accessibility strings -->
     <string name="content_desc_more">more</string>

app/src/main/res/values/strings.xml

@@ -362,6 +362,10 @@
     <string name="wpi_tap_form_error">Er trad een fout op bij de bestelling. Controleer dat de bestelling er niet toch doorgekomen is voor u het opnieuw probeert.</string>
     <string name="wpi_tap_order_ok">Besteld voor %1$s</string>
     <string name="wpi_tap_form_confirm">Zeker? Het totaal van uw bestelling is %1$s.</string>
+    <string name="wpi_mode_enabled">Zeus-modus is ingeschakeld.</string>
+    <plurals name="wpi_mode_press">
+        <item quantity="other">Druk nog %d keer…</item>
+    </plurals>
 
     <!-- Accessibility strings -->
     <string name="content_desc_more">meer</string>

app/src/main/res/xml/pref_about.xml

@@ -64,12 +64,7 @@
         app:key="pref_about_creator_zeus"
         app:persistent="false"
         app:singleLineTitle="false"
-        app:title="@string/pref_about_creator_zeus"
-        tools:ignore="UnusedAttribute">
-        <intent
-            android:action="android.intent.action.VIEW"
-            android:data="https://zeus.ugent.be" />
-    </Preference>
+        app:title="@string/pref_about_creator_zeus" />
 
     <Preference
         app:iconSpaceReserved="true"