The touch exploration capability is dynamically granted pre-JellyBeanMR2. (11adf6dc) · Commits · e / os / android_frameworks_base

core/java/android/accessibilityservice/AccessibilityServiceInfo.java

+19 −19

Original line number	Diff line number	Diff line
		@@ -375,23 +375,6 @@ public class AccessibilityServiceInfo implements Parcelable {
		/* do nothing */
		}

		/**
		* Creates a new instance.
		*
		* @param isAutomation Whether this is a test automation service.
		*
		* @hide
		*/
		public AccessibilityServiceInfo(boolean isAutomation) {
		// Automation service can do anything.
		if (isAutomation) {
		mCapabilities \|= CAPABILITY_CAN_RETRIEVE_WINDOW_CONTENT
		\| CAPABILITY_CAN_REQUEST_TOUCH_EXPLORATION
		\| CAPABILITY_CAN_REQUEST_ENHANCED_WEB_ACCESSIBILITY
		\| CAPABILITY_CAN_REQUEST_FILTER_KEY_EVENTS;
		}
		}

		/**
		* Creates a new instance.
		*
		@@ -573,6 +556,23 @@ public class AccessibilityServiceInfo implements Parcelable {
		return mCapabilities;
		}

		/**
		* Sets the bit mask of capabilities this accessibility service has such as
		* being able to retrieve the active window content, etc.
		*
		* @param capabilities The capability bit mask.
		*
		* @see #CAPABILITY_CAN_RETRIEVE_WINDOW_CONTENT
		* @see #CAPABILITY_CAN_REQUEST_TOUCH_EXPLORATION
		* @see #CAPABILITY_CAN_REQUEST_ENHANCED_WEB_ACCESSIBILITY
		* @see #CAPABILITY_FILTER_KEY_EVENTS
		*
		* @hide
		*/
		public void setCapabilities(int capabilities) {
		mCapabilities = capabilities;
		}

		/**
		* Gets the non-localized description of the accessibility service.
		* <p>

core/java/android/app/UiAutomationConnection.java

+5 −1

Original line number	Diff line number	Diff line
		@@ -158,11 +158,15 @@ public final class UiAutomationConnection extends IUiAutomationConnection.Stub {
		private void registerUiTestAutomationServiceLocked(IAccessibilityServiceClient client) {
		IAccessibilityManager manager = IAccessibilityManager.Stub.asInterface(
		ServiceManager.getService(Context.ACCESSIBILITY_SERVICE));
		AccessibilityServiceInfo info = new AccessibilityServiceInfo(true);
		AccessibilityServiceInfo info = new AccessibilityServiceInfo();
		info.eventTypes = AccessibilityEvent.TYPES_ALL_MASK;
		info.feedbackType = AccessibilityServiceInfo.FEEDBACK_GENERIC;
		info.flags \|= AccessibilityServiceInfo.FLAG_INCLUDE_NOT_IMPORTANT_VIEWS
		\| AccessibilityServiceInfo.FLAG_REPORT_VIEW_IDS;
		info.setCapabilities(AccessibilityServiceInfo.CAPABILITY_CAN_RETRIEVE_WINDOW_CONTENT
		\| AccessibilityServiceInfo.CAPABILITY_CAN_REQUEST_TOUCH_EXPLORATION
		\| AccessibilityServiceInfo.CAPABILITY_CAN_REQUEST_ENHANCED_WEB_ACCESSIBILITY
		\| AccessibilityServiceInfo.CAPABILITY_CAN_REQUEST_FILTER_KEY_EVENTS);
		try {
		// Calling out with a lock held is fine since if the system
		// process is gone the client calling in will be killed.

services/java/com/android/server/accessibility/AccessibilityManagerService.java

+26 −8

Original line number	Diff line number	Diff line
		@@ -1261,6 +1261,7 @@ public class AccessibilityManagerService extends IAccessibilityManager.Stub {
		}

		private void onUserStateChangedLocked(UserState userState) {
		updateLegacyCapabilities(userState);
		updateServicesLocked(userState);
		updateTouchExplorationLocked(userState);
		updateEnhancedWebAccessibilityLocked(userState);
		@@ -1268,6 +1269,28 @@ public class AccessibilityManagerService extends IAccessibilityManager.Stub {
		scheduleUpdateClientsIfNeededLocked(userState);
		}

		private void updateLegacyCapabilities(UserState userState) {
		// Up to JB-MR1 we had a white list with services that can enable touch
		// exploration. When a service is first started we show a dialog to the
		// use to get a permission to white list the service.
		final int installedServiceCount = userState.mInstalledServices.size();
		for (int i = 0; i < installedServiceCount; i++) {
		AccessibilityServiceInfo serviceInfo = userState.mInstalledServices.get(i);
		ResolveInfo resolveInfo = serviceInfo.getResolveInfo();
		if ((serviceInfo.getCapabilities()
		& AccessibilityServiceInfo.CAPABILITY_CAN_REQUEST_TOUCH_EXPLORATION) == 0
		&& resolveInfo.serviceInfo.applicationInfo.targetSdkVersion
		<= Build.VERSION_CODES.JELLY_BEAN_MR1) {
		ComponentName componentName = new ComponentName(
		resolveInfo.serviceInfo.packageName, resolveInfo.serviceInfo.name);
		if (userState.mTouchExplorationGrantedServices.contains(componentName)) {
		serviceInfo.setCapabilities(serviceInfo.getCapabilities()
		\| AccessibilityServiceInfo.CAPABILITY_CAN_REQUEST_TOUCH_EXPLORATION);
		}
		}
		}
		}

		private void updateServicesLocked(UserState userState) {
		if (userState.mIsAccessibilityEnabled) {
		manageServicesLocked(userState);
		@@ -1658,8 +1681,6 @@ public class AccessibilityManagerService extends IAccessibilityManager.Stub {

		Intent mIntent;

		boolean mCanRetrieveScreenContent;

		boolean mIsAutomation;

		final Rect mTempBounds = new Rect();
		@@ -1695,15 +1716,11 @@ public class AccessibilityManagerService extends IAccessibilityManager.Stub {
		mAccessibilityServiceInfo = accessibilityServiceInfo;
		mIsAutomation = (sFakeAccessibilityServiceComponentName.equals(componentName));
		if (!mIsAutomation) {
		mCanRetrieveScreenContent = (accessibilityServiceInfo.getCapabilities()
		& AccessibilityServiceInfo.CAPABILITY_CAN_REQUEST_TOUCH_EXPLORATION) != 0;
		mIntent = new Intent().setComponent(mComponentName);
		mIntent.putExtra(Intent.EXTRA_CLIENT_LABEL,
		com.android.internal.R.string.accessibility_binding_label);
		mIntent.putExtra(Intent.EXTRA_CLIENT_INTENT, PendingIntent.getActivity(
		mContext, 0, new Intent(Settings.ACTION_ACCESSIBILITY_SETTINGS), 0));
		} else {
		mCanRetrieveScreenContent = true;
		}
		setDynamicallyConfigurableProperties(accessibilityServiceInfo);
		}
		@@ -2152,7 +2169,7 @@ public class AccessibilityManagerService extends IAccessibilityManager.Stub {
		.loadLabel(mContext.getPackageManager()));
		pw.append(", feedbackType"
		+ AccessibilityServiceInfo.feedbackTypeToString(mFeedbackType));
		pw.append(", canRetrieveScreenContent=" + mCanRetrieveScreenContent);
		pw.append(", capabilities=" + mAccessibilityServiceInfo.getCapabilities());
		pw.append(", eventTypes="
		+ AccessibilityEvent.eventTypeToString(mEventTypes));
		pw.append(", notificationTimeout=" + mNotificationTimeout);
		@@ -2742,7 +2759,8 @@ public class AccessibilityManagerService extends IAccessibilityManager.Stub {
		}

		public boolean canRetrieveWindowContent(Service service) {
		return service.mCanRetrieveScreenContent;
		return (service.mAccessibilityServiceInfo.getCapabilities()
		& AccessibilityServiceInfo.CAPABILITY_CAN_RETRIEVE_WINDOW_CONTENT) != 0;
		}

		public void enforceCanRetrieveWindowContent(Service service) throws RemoteException {