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Commit 43057f8d authored by Dave Mankoff's avatar Dave Mankoff Committed by Android (Google) Code Review
Browse files

Merge "Prevent NPE in NavigationBar" into sc-v2-dev

parents e9002545 eec420a3

packages/SystemUI/src/com/android/systemui/navigationbar/NavigationBar.java

+6 −4
Original line number Diff line number Diff line
@@ -712,6 +712,7 @@ public class NavigationBar implements View.OnAttachStateChangeListener, 
        mHandler.removeCallbacks(mAutoDim);

        mHandler.removeCallbacks(mOnVariableDurationHomeLongClick);

        mHandler.removeCallbacks(mEnableLayoutTransitions);

        mNavigationBarA11yHelper.removeA11yEventListener(mAccessibilityListener);

        mFrame = null;

        mNavigationBarView = null;

        mOrientationHandle = null;
@@ -1391,10 +1392,11 @@ public class NavigationBar implements View.OnAttachStateChangeListener, 
    void updateAccessibilityServicesState() {

        int a11yFlags = mNavigationBarA11yHelper.getA11yButtonState();



        if (mNavigationBarView != null) {

            boolean clickable = (a11yFlags & SYSUI_STATE_A11Y_BUTTON_CLICKABLE) != 0;

            boolean longClickable = (a11yFlags & SYSUI_STATE_A11Y_BUTTON_LONG_CLICKABLE) != 0;

            mNavigationBarView.setAccessibilityButtonState(clickable, longClickable);



        }

        updateSystemUiStateFlags(a11yFlags);

    }

packages/SystemUI/tests/src/com/android/systemui/navigationbar/NavigationBarTest.java

+18 −1
Original line number Diff line number Diff line
@@ -56,6 +56,7 @@ import android.testing.TestableLooper.RunWithLooper; 
import android.view.Display;

import android.view.DisplayInfo;

import android.view.MotionEvent;

import android.view.View;

import android.view.WindowManager;

import android.view.WindowMetrics;

import android.view.accessibility.AccessibilityManager;
@@ -122,6 +123,8 @@ public class NavigationBarTest extends SysuiTestCase { 
    EdgeBackGestureHandler.Factory mEdgeBackGestureHandlerFactory;

    @Mock

    EdgeBackGestureHandler mEdgeBackGestureHandler;

    @Mock

    NavigationBarA11yHelper mNavigationBarA11yHelper;



    @Rule

    public final LeakCheckedTest.SysuiLeakCheck mLeakCheck = new LeakCheckedTest.SysuiLeakCheck();
@@ -256,6 +259,20 @@ public class NavigationBarTest extends SysuiTestCase { 
        assertFalse((defaultNavBar.getNavigationIconHints() & NAVIGATION_HINT_IME_SHOWN) != 0);

    }



    @Test

    public void testA11yEventAfterDetach() {

        View v = mNavigationBar.createView(null);

        mNavigationBar.onViewAttachedToWindow(v);

        verify(mNavigationBarA11yHelper).registerA11yEventListener(any(

                NavigationBarA11yHelper.NavA11yEventListener.class));

        mNavigationBar.onViewDetachedFromWindow(v);

        verify(mNavigationBarA11yHelper).removeA11yEventListener(any(

                NavigationBarA11yHelper.NavA11yEventListener.class));



        // Should be safe even though the internal view is now null.

        mNavigationBar.updateAccessibilityServicesState();

    }



    private NavigationBar createNavBar(Context context) {

        DeviceProvisionedController deviceProvisionedController =

                mock(DeviceProvisionedController.class);
@@ -287,7 +304,7 @@ public class NavigationBarTest extends SysuiTestCase { 
                mHandler,

                mock(NavigationBarOverlayController.class),

                mUiEventLogger,

                mock(NavigationBarA11yHelper.class),

                mNavigationBarA11yHelper,

                mock(UserTracker.class)));

    }