Fix power+volume chord fallback when LPP option is disabled

Not all devices will have power+volume chord enabled. Fix current wrong behaviour by falling back to mute chord behaviour only if it was set as the default option in device overlay.

Bug: 187814162
Test: make RunSettingsRoboTests ROBOTEST_FILTER="com.android.settings.gestures.*"
Change-Id: I15c0a71d25738b3b01a20bf22c790d9dcba5d6fd

src/com/android/settings/gestures/LongPressPowerButtonPreferenceController.java

@@ -76,6 +76,8 @@ public class LongPressPowerButtonPreferenceController extends TogglePreferenceCo
      * frameworks/base/core/res/res/values/config.xml
      */
     @VisibleForTesting
+    static final int KEY_CHORD_POWER_VOLUME_UP_NO_ACTION = 0;
+    @VisibleForTesting
     static final int KEY_CHORD_POWER_VOLUME_UP_MUTE_TOGGLE = 1;
     @VisibleForTesting
     static final int KEY_CHORD_POWER_VOLUME_UP_GLOBAL_ACTIONS = 2;
@@ -89,6 +91,9 @@ public class LongPressPowerButtonPreferenceController extends TogglePreferenceCo
     private static final int POWER_BUTTON_LONG_PRESS_DEFAULT_VALUE_RESOURCE =
             R.integer.config_longPressOnPowerBehavior;
 
+    private static final int KEY_CHORD_POWER_VOLUME_UP_DEFAULT_VALUE_RESOURCE =
+            R.integer.config_keyChordPowerVolumeUp;
+
     @Nullable
     private SettingObserver mSettingsObserver;
 
@@ -177,10 +182,20 @@ public class LongPressPowerButtonPreferenceController extends TogglePreferenceCo
      * should show the power menu.
      */
     private boolean setPowerVolumeChordValue(boolean isPowerButtonLongPressChecked) {
+        if (isPowerButtonLongPressChecked) {
+            return Settings.Global.putInt(mContext.getContentResolver(),
+                    KEY_CHORD_POWER_VOLUME_UP_SETTING, KEY_CHORD_POWER_VOLUME_UP_GLOBAL_ACTIONS);
+        }
+
+        // If the key chord defaults to mute toggle, we restore that setting if LPP option is
+        // disabled. Otherwise we default to no action.
+        boolean isMuteToggleKeyChordDefault = mContext.getResources().getInteger(
+                KEY_CHORD_POWER_VOLUME_UP_DEFAULT_VALUE_RESOURCE)
+                == KEY_CHORD_POWER_VOLUME_UP_MUTE_TOGGLE;
         return Settings.Global.putInt(mContext.getContentResolver(),
-                KEY_CHORD_POWER_VOLUME_UP_SETTING, isPowerButtonLongPressChecked
+                KEY_CHORD_POWER_VOLUME_UP_SETTING, isMuteToggleKeyChordDefault
-                        ? KEY_CHORD_POWER_VOLUME_UP_GLOBAL_ACTIONS
+                        ? KEY_CHORD_POWER_VOLUME_UP_MUTE_TOGGLE
-                        : KEY_CHORD_POWER_VOLUME_UP_MUTE_TOGGLE);
+                        : KEY_CHORD_POWER_VOLUME_UP_NO_ACTION);
     }
 
     /**

tests/robotests/src/com/android/settings/gestures/LongPressPowerButtonPreferenceControllerTest.java

@@ -93,6 +93,25 @@ public class LongPressPowerButtonPreferenceControllerTest {
                 com.android.internal.R.integer.config_longPressOnPowerBehavior))
                 .thenReturn(8);
 
+        mController.onPreferenceChange(null, false);
+        assertThat(Settings.Global.getInt(mContext.getContentResolver(),
+                Settings.Global.POWER_BUTTON_LONG_PRESS, -1)).isEqualTo(8);
+        assertThat(Settings.Global.getInt(mContext.getContentResolver(),
+                Settings.Global.KEY_CHORD_POWER_VOLUME_UP, -1)).isEqualTo(
+                LongPressPowerButtonPreferenceController.KEY_CHORD_POWER_VOLUME_UP_NO_ACTION);
+    }
+
+    @Test
+    public void preferenceUnchecked_muteChordDefault_longPressPowerSettingSetToDefaultValue() {
+        // Value out of range chosen deliberately.
+        when(mResources.getInteger(
+                com.android.internal.R.integer.config_longPressOnPowerBehavior))
+                .thenReturn(8);
+        when(mResources.getInteger(
+                com.android.internal.R.integer.config_keyChordPowerVolumeUp))
+                .thenReturn(
+                LongPressPowerButtonPreferenceController.KEY_CHORD_POWER_VOLUME_UP_MUTE_TOGGLE);
+
         mController.onPreferenceChange(null, false);
         assertThat(Settings.Global.getInt(mContext.getContentResolver(),
                 Settings.Global.POWER_BUTTON_LONG_PRESS, -1)).isEqualTo(8);
@@ -115,9 +134,10 @@ public class LongPressPowerButtonPreferenceControllerTest {
                 LongPressPowerButtonPreferenceController.LONG_PRESS_POWER_SHUT_OFF);
         assertThat(Settings.Global.getInt(mContext.getContentResolver(),
                 Settings.Global.KEY_CHORD_POWER_VOLUME_UP, -1)).isEqualTo(
-                LongPressPowerButtonPreferenceController.KEY_CHORD_POWER_VOLUME_UP_MUTE_TOGGLE);
+                LongPressPowerButtonPreferenceController.KEY_CHORD_POWER_VOLUME_UP_NO_ACTION);
     }
 
+
     @Test
     public void preferenceUnchecked_assistDefaultGlobalActionsEnabled_setGlobalActions() {
         // Value out of range chosen deliberately.
@@ -136,6 +156,6 @@ public class LongPressPowerButtonPreferenceControllerTest {
                 LongPressPowerButtonPreferenceController.LONG_PRESS_POWER_GLOBAL_ACTIONS);
         assertThat(Settings.Global.getInt(mContext.getContentResolver(),
                 Settings.Global.KEY_CHORD_POWER_VOLUME_UP, -1)).isEqualTo(
-                LongPressPowerButtonPreferenceController.KEY_CHORD_POWER_VOLUME_UP_MUTE_TOGGLE);
+                LongPressPowerButtonPreferenceController.KEY_CHORD_POWER_VOLUME_UP_NO_ACTION);
     }
 }