Restrict Hotspot tile in Quick Settings

- Disable Hotspot tile when user is not allowed to enable Wi-Fi tethering.

- Show restriction message in Hotspot tile secondary label.

Bug: 203168953
Test: manual test
atest -c com.android.systemui.qs.tiles.HotspotTileTest

Change-Id: Ibe8f1824090dacb1aa03b116adcd2ae5e7ea2892

packages/SystemUI/src/com/android/systemui/qs/tiles/HotspotTile.java

@@ -30,6 +30,7 @@ import androidx.annotation.Nullable;
 
 import com.android.internal.logging.MetricsLogger;
 import com.android.internal.logging.nano.MetricsProto.MetricsEvent;
+import com.android.settingslib.wifi.WifiEnterpriseRestrictionUtils;
 import com.android.systemui.R;
 import com.android.systemui.dagger.qualifiers.Background;
 import com.android.systemui.dagger.qualifiers.Main;
@@ -158,7 +159,9 @@ public class HotspotTile extends QSTileImpl<BooleanState> {
         state.expandedAccessibilityClassName = Switch.class.getName();
         state.contentDescription = state.label;
 
-        final boolean isTileUnavailable = isDataSaverEnabled;
+        final boolean isWifiTetheringAllowed =
+                WifiEnterpriseRestrictionUtils.isWifiTetheringAllowed(mHost.getUserContext());
+        final boolean isTileUnavailable = isDataSaverEnabled || !isWifiTetheringAllowed;
         final boolean isTileActive = (state.value || state.isTransient);
 
         if (isTileUnavailable) {
@@ -167,15 +170,17 @@ public class HotspotTile extends QSTileImpl<BooleanState> {
             state.state = isTileActive ? Tile.STATE_ACTIVE : Tile.STATE_INACTIVE;
         }
 
-        state.secondaryLabel = getSecondaryLabel(
-                isTileActive, isTransient, isDataSaverEnabled, numConnectedDevices);
+        state.secondaryLabel = getSecondaryLabel(isTileActive, isTransient, isDataSaverEnabled,
+                numConnectedDevices, isWifiTetheringAllowed);
         state.stateDescription = state.secondaryLabel;
     }
 
     @Nullable
     private String getSecondaryLabel(boolean isActive, boolean isTransient,
-            boolean isDataSaverEnabled, int numConnectedDevices) {
-        if (isTransient) {
+            boolean isDataSaverEnabled, int numConnectedDevices, boolean isWifiTetheringAllowed) {
+        if (!isWifiTetheringAllowed) {
+            return mContext.getString(R.string.wifitrackerlib_admin_restricted_network);
+        } else if (isTransient) {
             return mContext.getString(R.string.quick_settings_hotspot_secondary_label_transient);
         } else if (isDataSaverEnabled) {
             return mContext.getString(

packages/SystemUI/tests/src/com/android/systemui/qs/tiles/HotspotTileTest.java

@@ -0,0 +1,125 @@
+/*
+ * 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.systemui.qs.tiles;
+
+import static com.google.common.truth.Truth.assertThat;
+
+import static org.mockito.Mockito.mock;
+import static org.mockito.Mockito.when;
+
+import android.os.Handler;
+import android.service.quicksettings.Tile;
+import android.testing.AndroidTestingRunner;
+import android.testing.TestableLooper;
+
+import androidx.test.filters.SmallTest;
+
+import com.android.dx.mockito.inline.extended.ExtendedMockito;
+import com.android.internal.logging.MetricsLogger;
+import com.android.settingslib.wifi.WifiEnterpriseRestrictionUtils;
+import com.android.systemui.R;
+import com.android.systemui.SysuiTestCase;
+import com.android.systemui.classifier.FalsingManagerFake;
+import com.android.systemui.plugins.ActivityStarter;
+import com.android.systemui.plugins.qs.QSTile;
+import com.android.systemui.plugins.statusbar.StatusBarStateController;
+import com.android.systemui.qs.QSTileHost;
+import com.android.systemui.qs.logging.QSLogger;
+import com.android.systemui.statusbar.policy.DataSaverController;
+import com.android.systemui.statusbar.policy.HotspotController;
+
+import org.junit.Before;
+import org.junit.Rule;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.mockito.Mock;
+import org.mockito.MockitoSession;
+import org.mockito.junit.MockitoJUnit;
+import org.mockito.junit.MockitoRule;
+
+@RunWith(AndroidTestingRunner.class)
+@TestableLooper.RunWithLooper(setAsMainLooper = true)
+@SmallTest
+public class HotspotTileTest extends SysuiTestCase {
+
+    @Rule
+    public MockitoRule mRule = MockitoJUnit.rule();
+    @Mock
+    private QSTileHost mHost;
+    @Mock
+    private HotspotController mHotspotController;
+    @Mock
+    private DataSaverController mDataSaverController;
+
+    private TestableLooper mTestableLooper;
+    private HotspotTile mTile;
+    private QSTile.BooleanState mState = new QSTile.BooleanState();
+
+    @Before
+    public void setUp() throws Exception {
+        mTestableLooper = TestableLooper.get(this);
+        when(mHost.getContext()).thenReturn(mContext);
+        when(mHost.getUserContext()).thenReturn(mContext);
+        when(mDataSaverController.isDataSaverEnabled()).thenReturn(false);
+
+        mTile = new HotspotTile(
+                mHost,
+                mTestableLooper.getLooper(),
+                new Handler(mTestableLooper.getLooper()),
+                new FalsingManagerFake(),
+                mock(MetricsLogger.class),
+                mock(StatusBarStateController.class),
+                mock(ActivityStarter.class),
+                mock(QSLogger.class),
+                mHotspotController,
+                mDataSaverController
+        );
+
+        mTile.initialize();
+        mTestableLooper.processAllMessages();
+    }
+
+    @Test
+    public void handleUpdateState_wifiTetheringIsAllowed_stateIsNotUnavailable() {
+        MockitoSession mockitoSession = ExtendedMockito.mockitoSession()
+                .spyStatic(WifiEnterpriseRestrictionUtils.class)
+                .startMocking();
+        when(WifiEnterpriseRestrictionUtils.isWifiTetheringAllowed(mContext)).thenReturn(true);
+
+        mTile.handleUpdateState(mState, null);
+
+        assertThat(mState.state).isNotEqualTo(Tile.STATE_UNAVAILABLE);
+        assertThat(String.valueOf(mState.secondaryLabel))
+                .isNotEqualTo(mContext.getString(R.string.wifitrackerlib_admin_restricted_network));
+        mockitoSession.finishMocking();
+    }
+
+    @Test
+    public void handleUpdateState_wifiTetheringIsDisallowed_stateIsUnavailable() {
+        MockitoSession mockitoSession = ExtendedMockito.mockitoSession()
+                .spyStatic(WifiEnterpriseRestrictionUtils.class)
+                .startMocking();
+        when(WifiEnterpriseRestrictionUtils.isWifiTetheringAllowed(mContext)).thenReturn(false);
+
+        mTile.handleUpdateState(mState, null);
+
+        assertThat(mState.state).isEqualTo(Tile.STATE_UNAVAILABLE);
+        assertThat(String.valueOf(mState.secondaryLabel))
+                .isEqualTo(mContext.getString(R.string.wifitrackerlib_admin_restricted_network));
+        mockitoSession.finishMocking();
+    }
+}