Implement accessibility telemtery in wear

As a part of this telemetry, log
 1. Accessiblity shortcut reported atom when stem primary button is
    triple pressed in wear
 2. log mistrigger occurred via System setting

Test: Tested logging of atom via : statsd_testdrive 266
Bug: 264540995
Test results:

On pressing triple press when its enabled, this was the output :

event_metrics {
  data {
    aggregated_atom_info {
      atom {
        accessibility_shortcut_reported {
          package_name: "com.google.android.marvin.talkback/com.google.android.marvin.talkback.TalkBackService"
          shortcut_type: A11Y_WEAR_TRIPLE_PRESS_GESTURE
          service_status: ENABLED
        }
      }
      elapsed_timestamp_nanos: 9304445032196
    }
  }
}
is_active: true

Change-Id: Ic348ed8762f2fac20c117671ee39a3acec8862bb

core/java/android/provider/Settings.java

@@ -4384,6 +4384,16 @@ public final class Settings {
         public static final String WEAR_ACCESSIBILITY_GESTURE_ENABLED
                 = "wear_accessibility_gesture_enabled";
 
+        /**
+         * If the triple press gesture for toggling accessibility is enabled during OOBE.
+         * Set to 1 for true and 0 for false.
+         *
+         * This setting is used only internally.
+         * @hide
+         */
+        public static final String WEAR_ACCESSIBILITY_GESTURE_ENABLED_DURING_OOBE =
+                "wear_accessibility_gesture_enabled_during_oobe";
+
         /**
          * @deprecated Use {@link android.provider.Settings.Global#AIRPLANE_MODE_ON} instead
          */
@@ -5766,6 +5776,7 @@ public final class Settings {
             PRIVATE_SETTINGS.add(END_BUTTON_BEHAVIOR);
             PRIVATE_SETTINGS.add(ADVANCED_SETTINGS);
             PRIVATE_SETTINGS.add(WEAR_ACCESSIBILITY_GESTURE_ENABLED);
+            PRIVATE_SETTINGS.add(WEAR_ACCESSIBILITY_GESTURE_ENABLED_DURING_OOBE);
             PRIVATE_SETTINGS.add(SCREEN_AUTO_BRIGHTNESS_ADJ);
             PRIVATE_SETTINGS.add(VIBRATE_INPUT_DEVICES);
             PRIVATE_SETTINGS.add(VOLUME_MASTER);

packages/SettingsProvider/src/android/provider/settings/validators/SystemSettingsValidators.java

@@ -211,6 +211,7 @@ public class SystemSettingsValidators {
         VALIDATORS.put(System.SHOW_BATTERY_PERCENT, BOOLEAN_VALIDATOR);
         VALIDATORS.put(System.NOTIFICATION_LIGHT_PULSE, BOOLEAN_VALIDATOR);
         VALIDATORS.put(System.WEAR_ACCESSIBILITY_GESTURE_ENABLED, BOOLEAN_VALIDATOR);
+        VALIDATORS.put(System.WEAR_ACCESSIBILITY_GESTURE_ENABLED_DURING_OOBE, BOOLEAN_VALIDATOR);
         VALIDATORS.put(System.CLOCKWORK_BLUETOOTH_SETTINGS_PREF, BOOLEAN_VALIDATOR);
         VALIDATORS.put(System.UNREAD_NOTIFICATION_DOT_INDICATOR, BOOLEAN_VALIDATOR);
         VALIDATORS.put(System.AUTO_LAUNCH_MEDIA_CONTROLS, BOOLEAN_VALIDATOR);

packages/SettingsProvider/test/src/android/provider/SettingsBackupTest.java

@@ -100,6 +100,7 @@ public class SettingsBackupTest {
                     Settings.System.MIN_REFRESH_RATE, // depends on hardware capabilities
                     Settings.System.PEAK_REFRESH_RATE, // depends on hardware capabilities
                     Settings.System.SCREEN_BRIGHTNESS_FLOAT,
+                    Settings.System.WEAR_ACCESSIBILITY_GESTURE_ENABLED_DURING_OOBE,
                     Settings.System.SCREEN_AUTO_BRIGHTNESS_ADJ,
                     Settings.System.MULTI_AUDIO_FOCUS_ENABLED // form-factor/OEM specific
                     );

services/core/java/com/android/server/policy/PhoneWindowManager.java

@@ -68,6 +68,7 @@ import static android.view.WindowManagerGlobal.ADD_OKAY;
 import static android.view.WindowManagerGlobal.ADD_PERMISSION_DENIED;
 
 import static com.android.internal.config.sysui.SystemUiDeviceConfigFlags.SCREENSHOT_KEYCHORD_DELAY;
+import static com.android.internal.util.FrameworkStatsLog.ACCESSIBILITY_SHORTCUT_REPORTED__SHORTCUT_TYPE__A11Y_WEAR_TRIPLE_PRESS_GESTURE;
 import static com.android.server.policy.WindowManagerPolicy.WindowManagerFuncs.CAMERA_LENS_COVERED;
 import static com.android.server.policy.WindowManagerPolicy.WindowManagerFuncs.CAMERA_LENS_COVER_ABSENT;
 import static com.android.server.policy.WindowManagerPolicy.WindowManagerFuncs.CAMERA_LENS_UNCOVERED;
@@ -190,6 +191,7 @@ import android.widget.Toast;
 
 import com.android.internal.R;
 import com.android.internal.accessibility.AccessibilityShortcutController;
+import com.android.internal.accessibility.util.AccessibilityStatsLogUtils;
 import com.android.internal.accessibility.util.AccessibilityUtils;
 import com.android.internal.annotations.VisibleForTesting;
 import com.android.internal.app.AssistUtils;
@@ -1400,7 +1402,18 @@ public class PhoneWindowManager implements WindowManagerPolicy {
                 if (DEBUG_INPUT) {
                     Slog.d(TAG, "Executing stem primary triple press action behavior.");
                 }
-                toggleTalkBack();
+
+                if (Settings.System.getIntForUser(mContext.getContentResolver(),
+                        Settings.System.WEAR_ACCESSIBILITY_GESTURE_ENABLED,
+                        /* def= */ 0, UserHandle.USER_CURRENT) == 1) {
+                    /** Toggle talkback begin */
+                    ComponentName componentName = getTalkbackComponent();
+                    if (componentName != null && toggleTalkBack(componentName)) {
+                        /** log stem triple press telemetry if it's a talkback enabled event */
+                        logStemTriplePressAccessibilityTelemetry(componentName);
+                    }
+                    /** Toggle talkback end */
+                }
                 break;
         }
     }
@@ -1419,17 +1432,39 @@ public class PhoneWindowManager implements WindowManagerPolicy {
         }
     }
 
-    private void toggleTalkBack() {
-        final ComponentName componentName = getTalkbackComponent();
-        if (componentName == null) {
-            return;
-        }
-
+    /**
+     * A function that toggles talkback service
+     *
+     * @return {@code true} if talkback is enabled, {@code false} if talkback is disabled
+     */
+    private boolean toggleTalkBack(ComponentName componentName) {
         final Set<ComponentName> enabledServices =
                 AccessibilityUtils.getEnabledServicesFromSettings(mContext, mCurrentUserId);
 
+        boolean isTalkbackAlreadyEnabled = enabledServices.contains(componentName);
         AccessibilityUtils.setAccessibilityServiceState(mContext, componentName,
-                !enabledServices.contains(componentName));
+                !isTalkbackAlreadyEnabled);
+        /** if isTalkbackAlreadyEnabled is true, then it's a disabled event so return false
+         * and if isTalkbackAlreadyEnabled is false, return true as it's an enabled event */
+        return !isTalkbackAlreadyEnabled;
+    }
+
+    /**
+     * A function that logs stem triple press accessibility telemetry
+     * If the user setup (Oobe) is not completed, set the
+     * WEAR_ACCESSIBILITY_GESTURE_ENABLED_DURING_OOBE
+     * setting which will be later logged via Settings Snapshot
+     * else, log ACCESSIBILITY_SHORTCUT_REPORTED atom
+     */
+    private void logStemTriplePressAccessibilityTelemetry(ComponentName componentName) {
+        if (!AccessibilityUtils.isUserSetupCompleted(mContext)) {
+            Settings.Secure.putInt(mContext.getContentResolver(),
+                    Settings.System.WEAR_ACCESSIBILITY_GESTURE_ENABLED_DURING_OOBE, 1);
+        } else {
+            AccessibilityStatsLogUtils.logAccessibilityShortcutActivated(mContext, componentName,
+                    ACCESSIBILITY_SHORTCUT_REPORTED__SHORTCUT_TYPE__A11Y_WEAR_TRIPLE_PRESS_GESTURE,
+                    /* serviceEnabled= */ true);
+        }
     }
 
     private ComponentName getTalkbackComponent() {