Settings: SoftAp: Add Hidden SSID preference

[jhonboy121]: adapted to A13

Signed-off-by: cjybyjk <cjybyjk@zjnu.edu.cn>
Change-Id: I8a222a9a9ae8f005953b738368168d551a502491
Signed-off-by: jhonboy121 <alfredmathew05@gmail.com>
diff --git a/res/values/leaf_strings.xml b/res/values/leaf_strings.xml
index b0711cb..bc9d3e1 100644
--- a/res/values/leaf_strings.xml
+++ b/res/values/leaf_strings.xml
@@ -97,4 +97,8 @@
     <!-- fingerprint lockout -->
     <string name="fingerprint_lockout_title">Disable fingerprint lockout</string>
     <string name="fingerprint_lockout_summary">Deactivates 30 second timeout as well as permanent lockout after multiple failed fingerprint unlock attempts</string>
+
+    <!-- Hotspot -->
+    <string name="wifi_hotspot_hidden_ssid_title">Hidden network</string>
+    <string name="wifi_hotspot_hidden_ssid_summary">Your mobile hotspot\'s name won\'t appear in the list of available WLAN networks.</string>
 </resources>
diff --git a/res/xml/wifi_tether_settings.xml b/res/xml/wifi_tether_settings.xml
index 4924bf9..a40480e 100644
--- a/res/xml/wifi_tether_settings.xml
+++ b/res/xml/wifi_tether_settings.xml
@@ -65,4 +65,9 @@
         android:title="@string/wifi_hotspot_instant_title"
         android:summary="@string/summary_placeholder"
         settings:isPreferenceVisible="false"/>
+
+    <SwitchPreference
+        android:key="wifi_tether_hidden_ssid"
+        android:title="@string/wifi_hotspot_hidden_ssid_title"
+        android:summary="@string/wifi_hotspot_hidden_ssid_summary"/>
 </PreferenceScreen>
diff --git a/src/com/android/settings/wifi/tether/WifiTetherSettings.java b/src/com/android/settings/wifi/tether/WifiTetherSettings.java
index bad29eb..5264ce0 100644
--- a/src/com/android/settings/wifi/tether/WifiTetherSettings.java
+++ b/src/com/android/settings/wifi/tether/WifiTetherSettings.java
@@ -48,6 +48,8 @@
 import com.android.settingslib.search.SearchIndexable;
 import com.android.settingslib.wifi.WifiEnterpriseRestrictionUtils;
 
+import ink.kscope.settings.wifi.tether.WifiTetherHiddenSsidPreferenceController;
+
 import java.util.ArrayList;
 import java.util.List;
 
@@ -76,6 +78,9 @@
     static final String KEY_WIFI_HOTSPOT_SPEED = "wifi_hotspot_speed";
     @VisibleForTesting
     static final String KEY_INSTANT_HOTSPOT = "wifi_hotspot_instant";
+    @VisibleForTesting
+    static final String KEY_WIFI_TETHER_HIDDEN_SSID =
+            WifiTetherHiddenSsidPreferenceController.PREF_KEY;
 
     @VisibleForTesting
     SettingsMainSwitchBar mMainSwitchBar;
@@ -90,6 +95,8 @@
     WifiTetherMaximizeCompatibilityPreferenceController mMaxCompatibilityPrefController;
     @VisibleForTesting
     WifiTetherAutoOffPreferenceController mWifiTetherAutoOffPreferenceController;
+    @VisibleForTesting
+    WifiTetherHiddenSsidPreferenceController mHiddenSsidPrefController;
 
     @VisibleForTesting
     boolean mUnavailable;
@@ -199,6 +206,7 @@
         mMaxCompatibilityPrefController =
                 use(WifiTetherMaximizeCompatibilityPreferenceController.class);
         mWifiTetherAutoOffPreferenceController = use(WifiTetherAutoOffPreferenceController.class);
+        mHiddenSsidPrefController = use(WifiTetherHiddenSsidPreferenceController.class);
     }
 
     @Override
@@ -283,6 +291,7 @@
         controllers.add(
                 new WifiTetherAutoOffPreferenceController(context, KEY_WIFI_TETHER_AUTO_OFF));
         controllers.add(new WifiTetherMaximizeCompatibilityPreferenceController(context, listener));
+        controllers.add(new WifiTetherHiddenSsidPreferenceController(context, listener));
         return controllers;
     }
 
@@ -329,6 +338,7 @@
         }
         configBuilder.setAutoShutdownEnabled(
                 mWifiTetherAutoOffPreferenceController.isEnabled());
+        configBuilder.setHiddenSsid(mHiddenSsidPrefController.isHiddenSsidEnabled());
         return configBuilder.build();
     }
 
@@ -337,6 +347,7 @@
         use(WifiTetherSecurityPreferenceController.class).updateDisplay();
         use(WifiTetherPasswordPreferenceController.class).updateDisplay();
         use(WifiTetherMaximizeCompatibilityPreferenceController.class).updateDisplay();
+        use(WifiTetherHiddenSsidPreferenceController.class).updateDisplay();
     }
 
     public static final SearchIndexProvider SEARCH_INDEX_DATA_PROVIDER =
@@ -369,6 +380,7 @@
                 keys.add(KEY_WIFI_TETHER_NETWORK_PASSWORD);
                 keys.add(KEY_WIFI_TETHER_AUTO_OFF);
                 keys.add(KEY_WIFI_TETHER_MAXIMIZE_COMPATIBILITY);
+                keys.add(KEY_WIFI_TETHER_HIDDEN_SSID);
             }
 
             // Remove duplicate
diff --git a/src/ink/kscope/settings/wifi/tether/WifiTetherHiddenSsidPreferenceController.java b/src/ink/kscope/settings/wifi/tether/WifiTetherHiddenSsidPreferenceController.java
new file mode 100644
index 0000000..2460877
--- /dev/null
+++ b/src/ink/kscope/settings/wifi/tether/WifiTetherHiddenSsidPreferenceController.java
@@ -0,0 +1,79 @@
+/*
+ * Copyright (C) 2022 Project Kaleidoscope
+ *
+ * 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 ink.kscope.settings.wifi.tether;
+
+import android.content.Context;
+import android.net.wifi.SoftApConfiguration;
+import android.util.FeatureFlagUtils;
+
+import androidx.preference.Preference;
+import androidx.preference.SwitchPreference;
+
+import com.android.settings.R;
+import com.android.settings.core.FeatureFlags;
+import com.android.settings.wifi.tether.WifiTetherBasePreferenceController;
+
+/**
+ * This controller helps to manage the state of hide SSID switch preference.
+ */
+public class WifiTetherHiddenSsidPreferenceController extends
+        WifiTetherBasePreferenceController {
+
+    public static final String DEDUP_POSTFIX = "_2";
+    public static final String PREF_KEY = "wifi_tether_hidden_ssid";
+
+    private boolean mHiddenSsid;
+
+    public WifiTetherHiddenSsidPreferenceController(Context context,
+            WifiTetherBasePreferenceController.OnTetherConfigUpdateListener listener) {
+        super(context, listener);
+
+        if (mWifiManager != null) {
+            final SoftApConfiguration config = mWifiManager.getSoftApConfiguration();
+            if (config != null) {
+                mHiddenSsid = config.isHiddenSsid();
+            }
+        }
+    }
+
+    @Override
+    public String getPreferenceKey() {
+        return FeatureFlagUtils.isEnabled(mContext, FeatureFlags.TETHER_ALL_IN_ONE)
+                ? PREF_KEY + DEDUP_POSTFIX : PREF_KEY;
+    }
+
+    @Override
+    public void updateDisplay() {
+        if (mPreference == null) {
+            return;
+        }
+        ((SwitchPreference) mPreference).setChecked(mHiddenSsid);
+    }
+
+    @Override
+    public boolean onPreferenceChange(Preference preference, Object newValue) {
+        mHiddenSsid = (Boolean) newValue;
+        if (mListener != null) {
+            mListener.onTetherConfigUpdated(this);
+        }
+        return true;
+    }
+
+    public boolean isHiddenSsidEnabled() {
+        return mHiddenSsid;
+    }
+}