Merge from master: fix issue #7966357: Super lights out mode vs. volume dialog

The volume panel now forces us out of the UI modes while it
is up.

Change-Id: If39fa33b1c52579bf5d376ce4722408cee3ca951

core/java/android/view/VolumePanel.java

@@ -302,6 +302,7 @@ public class VolumePanel extends Handler implements OnSeekBarChangeListener, Vie
         lp.type = LayoutParams.TYPE_VOLUME_OVERLAY;
         lp.width = LayoutParams.WRAP_CONTENT;
         lp.height = LayoutParams.WRAP_CONTENT;
+        lp.privateFlags |= LayoutParams.PRIVATE_FLAG_FORCE_SHOW_NAV_BAR;
         window.setAttributes(lp);
         window.addFlags(LayoutParams.FLAG_NOT_FOCUSABLE | LayoutParams.FLAG_NOT_TOUCH_MODAL
                 | LayoutParams.FLAG_WATCH_OUTSIDE_TOUCH);

core/java/android/view/WindowManager.java

@@ -945,6 +945,13 @@ public interface WindowManager extends ViewManager {
          * {@hide} */
         public static final int PRIVATE_FLAG_SHOW_FOR_ALL_USERS = 0x00000010;
 
+        /**
+         * Special flag for the volume overlay: force the window manager out of "hide nav bar"
+         * mode while the window is on screen.
+         *
+         * {@hide} */
+        public static final int PRIVATE_FLAG_FORCE_SHOW_NAV_BAR = 0x00000020;
+
         /**
          * Control flags that are private to the platform.
          * @hide

policy/src/com/android/internal/policy/impl/PhoneWindowManager.java

@@ -412,6 +412,8 @@ public class PhoneWindowManager implements WindowManagerPolicy {
     boolean mForceStatusBar;
     boolean mForceStatusBarFromKeyguard;
     boolean mHideLockScreen;
+    boolean mForcingShowNavBar;
+    int mForcingShowNavBarLayer;
 
     // States of keyguard dismiss.
     private static final int DISMISS_KEYGUARD_NONE = 0; // Keyguard not being dismissed.
@@ -2936,6 +2938,8 @@ public class PhoneWindowManager implements WindowManagerPolicy {
         mTopFullscreenOpaqueWindowState = null;
         mForceStatusBar = false;
         mForceStatusBarFromKeyguard = false;
+        mForcingShowNavBar = false;
+        mForcingShowNavBarLayer = -1;
         
         mHideLockScreen = false;
         mAllowLockscreenWhenOn = false;
@@ -2950,6 +2954,13 @@ public class PhoneWindowManager implements WindowManagerPolicy {
                                 WindowManager.LayoutParams attrs) {
         if (DEBUG_LAYOUT) Slog.i(TAG, "Win " + win + ": isVisibleOrBehindKeyguardLw="
                 + win.isVisibleOrBehindKeyguardLw());
+        if (mTopFullscreenOpaqueWindowState == null && (win.getAttrs().privateFlags
+                &WindowManager.LayoutParams.PRIVATE_FLAG_FORCE_SHOW_NAV_BAR) != 0) {
+            if (mForcingShowNavBarLayer < 0) {
+                mForcingShowNavBar = true;
+                mForcingShowNavBarLayer = win.getSurfaceLayer();
+            }
+        }
         if (mTopFullscreenOpaqueWindowState == null &&
                 win.isVisibleOrBehindKeyguardLw() && !win.isGoneForLayoutLw()) {
             if ((attrs.flags & FLAG_FORCE_NOT_FULLSCREEN) != 0) {
@@ -4478,9 +4489,13 @@ public class PhoneWindowManager implements WindowManagerPolicy {
             // will quickly lose focus once it correctly gets hidden.
             return 0;
         }
-        final int visibility = mFocusedWindow.getSystemUiVisibility()
+        int tmpVisibility = mFocusedWindow.getSystemUiVisibility()
                 & ~mResettingSystemUiFlags
                 & ~mForceClearedSystemUiFlags;
+        if (mForcingShowNavBar && mFocusedWindow.getSurfaceLayer() < mForcingShowNavBarLayer) {
+            tmpVisibility &= ~View.SYSTEM_UI_CLEARABLE_FLAGS;
+        }
+        final int visibility = tmpVisibility;
         int diff = visibility ^ mLastSystemUiFlags;
         final boolean needsMenu = mFocusedWindow.getNeedsMenuLw(mTopFullscreenOpaqueWindowState);
         if (diff == 0 && mLastFocusNeedsMenu == needsMenu
@@ -4667,6 +4682,11 @@ public class PhoneWindowManager implements WindowManagerPolicy {
             pw.print(prefix); pw.print("mTopFullscreenOpaqueWindowState=");
                     pw.println(mTopFullscreenOpaqueWindowState);
         }
+        if (mForcingShowNavBar) {
+            pw.print(prefix); pw.print("mForcingShowNavBar=");
+                    pw.println(mForcingShowNavBar); pw.print( "mForcingShowNavBarLayer=");
+                    pw.println(mForcingShowNavBarLayer);
+        }
         pw.print(prefix); pw.print("mTopIsFullscreen="); pw.print(mTopIsFullscreen);
                 pw.print(" mHideLockScreen="); pw.println(mHideLockScreen);
         pw.print(prefix); pw.print("mForceStatusBar="); pw.print(mForceStatusBar);

services/java/com/android/server/am/ActivityManagerService.java

@@ -3869,7 +3869,7 @@ public final class ActivityManagerService extends ActivityManagerNative
         }
 
         boolean didSomething = killPackageProcessesLocked(name, appId, userId,
-                -100, callerWillRestart, false, doit, evenPersistent,
+                -100, callerWillRestart, true, doit, evenPersistent,
                 name == null ? ("force stop user " + userId) : ("force stop " + name));
         
         TaskRecord lastTask = null;