Fallback to "Extended Compatibility" if Speed feature is not ready

- Fallback to the "Extended Compatibility" design when the following conditions occur
  - 5 GHz band is not supported on the device
  - 5 GHz SAP available channels cannot be obtained from WifiManager
  - 6 GHz SAP available channels cannot be obtained from WifiManager

Bug: 272450463
Test: manual test
atest -c WifiTetherSettingsTest
atest -c WifiTetherViewModelTest \
         WifiHotspotRepositoryTest \
         WifiTetherSecurityPreferenceControllerTest.java \
         WifiTetherMaximizeCompatibilityPreferenceControllerTest

Change-Id: If7c8c41ebe86f5e7d8e4737ab7a82d38c9d633de

src/com/android/settings/wifi/tether/WifiTetherMaximizeCompatibilityPreferenceController.java

@@ -25,6 +25,7 @@ import androidx.preference.Preference;
 import androidx.preference.SwitchPreference;
 
 import com.android.settings.R;
+import com.android.settings.overlay.FeatureFactory;
 
 /**
  * This controller helps to manage the state of maximize compatibility switch preference.
@@ -36,13 +37,30 @@ public class WifiTetherMaximizeCompatibilityPreferenceController extends
     public static final String PREF_KEY = "wifi_tether_maximize_compatibility";
 
     private boolean mIsChecked;
+    @VisibleForTesting
+    boolean mShouldHidePreference;
 
     public WifiTetherMaximizeCompatibilityPreferenceController(Context context,
             WifiTetherBasePreferenceController.OnTetherConfigUpdateListener listener) {
         super(context, listener);
+        // If the Wi-Fi Hotspot Speed Feature available, then hide this controller.
+        mShouldHidePreference = FeatureFactory.getFactory(context)
+                .getWifiFeatureProvider().getWifiHotspotRepository().isSpeedFeatureAvailable();
+        Log.d(TAG, "mShouldHidePreference:" + mShouldHidePreference);
+        if (mShouldHidePreference) {
+            return;
+        }
         mIsChecked = isMaximizeCompatibilityEnabled();
     }
 
+    @Override
+    public boolean isAvailable() {
+        if (mShouldHidePreference) {
+            return false;
+        }
+        return super.isAvailable();
+    }
+
     @Override
     public String getPreferenceKey() {
         return PREF_KEY;

src/com/android/settings/wifi/tether/WifiTetherSecurityPreferenceController.java

@@ -32,6 +32,7 @@ import androidx.preference.Preference;
 
 import com.android.settings.R;
 import com.android.settings.core.FeatureFlags;
+import com.android.settings.overlay.FeatureFactory;
 
 import java.util.LinkedHashMap;
 import java.util.Map;
@@ -48,10 +49,19 @@ public class WifiTetherSecurityPreferenceController extends WifiTetherBasePrefer
     private int mSecurityValue;
     @VisibleForTesting
     boolean mIsWpa3Supported = true;
+    @VisibleForTesting
+    boolean mShouldHidePreference;
 
     public WifiTetherSecurityPreferenceController(Context context,
             OnTetherConfigUpdateListener listener) {
         super(context, listener);
+        // If the Wi-Fi Hotspot Speed Feature available, then hide this controller.
+        mShouldHidePreference = FeatureFactory.getFactory(context)
+                .getWifiFeatureProvider().getWifiHotspotRepository().isSpeedFeatureAvailable();
+        Log.d(TAG, "shouldHidePreference():" + mShouldHidePreference);
+        if (mShouldHidePreference) {
+            return;
+        }
         final String[] securityNames = mContext.getResources().getStringArray(
                 R.array.wifi_tether_security);
         final String[] securityValues = mContext.getResources().getStringArray(
@@ -62,6 +72,14 @@ public class WifiTetherSecurityPreferenceController extends WifiTetherBasePrefer
         mWifiManager.registerSoftApCallback(context.getMainExecutor(), this);
     }
 
+    @Override
+    public boolean isAvailable() {
+        if (mShouldHidePreference) {
+            return false;
+        }
+        return super.isAvailable();
+    }
+
     @Override
     public String getPreferenceKey() {
         return FeatureFlagUtils.isEnabled(mContext, FeatureFlags.TETHER_ALL_IN_ONE)

src/com/android/settings/wifi/tether/WifiTetherSettings.java

@@ -136,12 +136,22 @@ public class WifiTetherSettings extends RestrictedDashboardFragment
 
         mWifiTetherViewModel = FeatureFactory.getFactory(getContext()).getWifiFeatureProvider()
                 .getWifiTetherViewModel(this);
-        mWifiHotspotSecurity = findPreference(KEY_WIFI_HOTSPOT_SECURITY);
-        if (mWifiHotspotSecurity != null && mWifiHotspotSecurity.isVisible()) {
-            mWifiTetherViewModel.getSecuritySummary().observe(this, this::onSecuritySummaryChanged);
+        if (mWifiTetherViewModel != null) {
+            setupSpeedFeature(mWifiTetherViewModel.isSpeedFeatureAvailable());
         }
+    }
+
+    @VisibleForTesting
+    void setupSpeedFeature(boolean isSpeedFeatureAvailable) {
+        mWifiHotspotSecurity = findPreference(KEY_WIFI_HOTSPOT_SECURITY);
         mWifiHotspotSpeed = findPreference(KEY_WIFI_HOTSPOT_SPEED);
-        if (mWifiHotspotSpeed != null && mWifiHotspotSpeed.isVisible()) {
+        if (mWifiHotspotSecurity == null || mWifiHotspotSpeed == null) {
+            return;
+        }
+        mWifiHotspotSecurity.setVisible(isSpeedFeatureAvailable);
+        mWifiHotspotSpeed.setVisible(isSpeedFeatureAvailable);
+        if (isSpeedFeatureAvailable) {
+            mWifiTetherViewModel.getSecuritySummary().observe(this, this::onSecuritySummaryChanged);
             mWifiTetherViewModel.getSpeedSummary().observe(this, this::onSpeedSummaryChanged);
         }
     }

src/com/android/settings/wifi/tether/WifiTetherViewModel.java

@@ -83,8 +83,21 @@ public class WifiTetherViewModel extends AndroidViewModel {
 
     @Override
     protected void onCleared() {
-        mWifiHotspotRepository.getSecurityType().removeObserver(mSecurityTypeObserver);
-        mWifiHotspotRepository.getSpeedType().removeObserver(mSpeedTypeObserver);
+        if (mSecuritySummary != null) {
+            mWifiHotspotRepository.getSecurityType().removeObserver(mSecurityTypeObserver);
+        }
+        if (mSpeedSummary != null) {
+            mWifiHotspotRepository.getSpeedType().removeObserver(mSpeedTypeObserver);
+        }
+    }
+
+    /**
+     * Return whether Wi-Fi Hotspot Speed Feature is available or not.
+     *
+     * @return {@code true} if Wi-Fi Hotspot Speed Feature is available
+     */
+    public boolean isSpeedFeatureAvailable() {
+        return mWifiHotspotRepository.isSpeedFeatureAvailable();
     }
 
     /**