[Touchpad & Mouse] Update title based on conditions

Update preference and page title based on device condition.

Bug: 364536531
Flag: NONE, bug fix for string title.
Test: verify on device
Change-Id: Id5b01680314c45f1b86661c60f9e7acedca8b6eb

res/values/strings.xml

@@ -4607,6 +4607,8 @@
     <string name="trackpad_settings">Touchpad</string>
     <!-- Title for the button to trigger the 'trackpad settings' page if connect with a touchpad and a mouse. [CHAR LIMIT=35] -->
     <string name="trackpad_mouse_settings">Touchpad &amp; mouse</string>
+    <!-- Title for the button to trigger the 'mouse settings' page if connect with a mouse. [CHAR LIMIT=35] -->
+    <string name="mouse_settings">Mouse</string>
     <!-- Summary text for the 'trackpad settings' page. [CHAR LIMIT=100] -->
     <string name="trackpad_settings_summary">Pointer speed, gestures</string>
 

src/com/android/settings/inputmethod/NewKeyboardSettingsUtils.java

@@ -36,6 +36,8 @@ import android.view.inputmethod.InputMethodInfo;
 import android.view.inputmethod.InputMethodManager;
 import android.view.inputmethod.InputMethodSubtype;
 
+import androidx.annotation.StringRes;
+
 import com.android.settings.R;
 
 import java.util.Arrays;
@@ -80,6 +82,18 @@ public class NewKeyboardSettingsUtils {
         return false;
     }
 
+    static @StringRes int getTouchpadAndMouseTitleTitleResId() {
+        boolean isMouse = isMouse();
+        boolean isTouchpad = isTouchpad();
+        if (isMouse && isTouchpad) {
+            return R.string.trackpad_mouse_settings;
+        } else if (isMouse) {
+            return R.string.mouse_settings;
+        } else {
+            return R.string.trackpad_settings;
+        }
+    }
+
     @SuppressLint("MissingPermission")
     @Nullable
     static String getSelectedKeyboardLayoutLabelForUser(Context context, @UserIdInt int userId,

src/com/android/settings/inputmethod/TrackpadSettings.java

@@ -18,8 +18,11 @@ package com.android.settings.inputmethod;
 
 import android.app.settings.SettingsEnums;
 import android.content.Context;
+import android.os.Bundle;
 import android.util.FeatureFlagUtils;
 
+import androidx.annotation.NonNull;
+
 import com.android.settings.R;
 import com.android.settings.dashboard.DashboardFragment;
 import com.android.settings.search.BaseSearchIndexProvider;
@@ -31,11 +34,18 @@ public class TrackpadSettings extends DashboardFragment {
     private static final String TAG = "TrackpadSettings";
 
     @Override
-    public void onAttach(Context context) {
+    public void onAttach(@NonNull Context context) {
         super.onAttach(context);
         use(TouchGesturesButtonPreferenceController.class).setFragment(this /*parent*/);
     }
 
+    @Override
+    public void onCreate(@NonNull Bundle icicle) {
+        super.onCreate(icicle);
+        getPreferenceScreen().setTitle(
+                NewKeyboardSettingsUtils.getTouchpadAndMouseTitleTitleResId());
+    }
+
     @Override
     public int getMetricsCategory() {
         return SettingsEnums.SETTINGS_KEYBOARDS_TOUCHPAD;

src/com/android/settings/inputmethod/TrackpadSettingsController.java

@@ -77,6 +77,7 @@ public class TrackpadSettingsController extends BasePreferenceController
             return;
         }
         mPreference.setVisible(isAvailable());
+        mPreference.setTitle(NewKeyboardSettingsUtils.getTouchpadAndMouseTitleTitleResId());
     }
 
     @Override

tests/robotests/src/com/android/settings/inputmethod/TrackpadSettingsControllerTest.java

@@ -25,6 +25,7 @@ import static org.junit.Assume.assumeTrue;
 import android.content.Context;
 import android.view.InputDevice;
 
+import androidx.preference.Preference;
 import androidx.test.core.app.ApplicationProvider;
 
 import com.android.settings.core.BasePreferenceController;
@@ -53,14 +54,31 @@ public class TrackpadSettingsControllerTest {
 
     private Context mContext;
     private TrackpadSettingsController mController;
+    private Preference mPreference;
 
     @Before
     public void setUp() {
         mContext = ApplicationProvider.getApplicationContext();
         mController = new TrackpadSettingsController(mContext, PREFERENCE_KEY);
+        mPreference = new Preference(mContext);
         ShadowInputDevice.reset();
     }
 
+    @Test
+    public void updateState_setTitleBasedOnDeviceSource() {
+        int deviceId = 1;
+        ShadowInputDevice.sDeviceIds = new int[]{deviceId};
+        InputDevice device = ShadowInputDevice.makeInputDevicebyIdWithSources(deviceId,
+                InputDevice.SOURCE_TOUCHPAD);
+        ShadowInputDevice.addDevice(deviceId, device);
+        String expectedTitle = mContext.getString(
+                NewKeyboardSettingsUtils.getTouchpadAndMouseTitleTitleResId());
+
+        mController.updateState(mPreference);
+
+        assertThat(mPreference.getTitle()).isEqualTo(expectedTitle);
+    }
+
     @Test
     public void getAvailabilityStatus_isTouchpadAvailable() {
         int deviceId = 1;