Empty notification shade state.

Bug: 16483230
Change-Id: I7953a7954cae12124146f462ed8c0dc44769a38f

2 files changed, 44 insertions, 0 deletions

diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/stack/NotificationStackScrollLayout.java b/packages/SystemUI/src/com/android/systemui/statusbar/stack/NotificationStackScrollLayout.java
index 943ee21..fcca5fa 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/stack/NotificationStackScrollLayout.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/stack/NotificationStackScrollLayout.java
@@ -36,6 +36,7 @@ import com.android.systemui.R;
 import com.android.systemui.SwipeHelper;
 import com.android.systemui.statusbar.ActivatableNotificationView;
 import com.android.systemui.statusbar.DismissView;
+import com.android.systemui.statusbar.EmptyShadeView;
 import com.android.systemui.statusbar.ExpandableNotificationRow;
 import com.android.systemui.statusbar.ExpandableView;
 import com.android.systemui.statusbar.SpeedBumpView;
@@ -145,6 +146,7 @@ public class NotificationStackScrollLayout extends ViewGroup
     private boolean mExpandedInThisMotion;
     private boolean mScrollingEnabled;
     private DismissView mDismissView;
+    private EmptyShadeView mEmptyShadeView;
     private boolean mDismissAllInProgress;
 
     /**
@@ -1222,6 +1224,9 @@ public class NotificationStackScrollLayout extends ViewGroup
         if (mDismissView.willBeGone()) {
             count--;
         }
+        if (mEmptyShadeView.willBeGone()) {
+            count--;
+        }
         return count;
     }
 
@@ -1985,6 +1990,7 @@ public class NotificationStackScrollLayout extends ViewGroup
     public void goToFullShade(long delay) {
         updateSpeedBump(true /* visibility */);
         mDismissView.setInvisible();
+        mEmptyShadeView.setInvisible();
         mGoToFullShadeNeedsAnimation = true;
         mGoToFullShadeDelay = delay;
         mNeedsAnimation =  true;
@@ -2039,6 +2045,38 @@ public class NotificationStackScrollLayout extends ViewGroup
         addView(mDismissView);
     }
 
+    public void setEmptyShadeView(EmptyShadeView emptyShadeView) {
+        mEmptyShadeView = emptyShadeView;
+        addView(mEmptyShadeView);
+    }
+
+    public void updateEmptyShadeView(boolean visible) {
+        int oldVisibility = mEmptyShadeView.willBeGone() ? GONE : mEmptyShadeView.getVisibility();
+        int newVisibility = visible ? VISIBLE : GONE;
+        if (oldVisibility != newVisibility) {
+            if (oldVisibility == GONE) {
+                if (mEmptyShadeView.willBeGone()) {
+                    mEmptyShadeView.cancelAnimation();
+                } else {
+                    mEmptyShadeView.setInvisible();
+                    mEmptyShadeView.setVisibility(newVisibility);
+                }
+                mEmptyShadeView.setWillBeGone(false);
+                updateContentHeight();
+            } else {
+                mEmptyShadeView.setWillBeGone(true);
+                mEmptyShadeView.performVisibilityAnimation(false, new Runnable() {
+                    @Override
+                    public void run() {
+                        mEmptyShadeView.setVisibility(GONE);
+                        mEmptyShadeView.setWillBeGone(false);
+                        updateContentHeight();
+                    }
+                });
+            }
+        }
+    }
+
     public void updateDismissView(boolean visible) {
         int oldVisibility = mDismissView.willBeGone() ? GONE : mDismissView.getVisibility();
         int newVisibility = visible ? VISIBLE : GONE;
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/stack/StackScrollState.java b/packages/SystemUI/src/com/android/systemui/statusbar/stack/StackScrollState.java
index a174952..f7a2824 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/stack/StackScrollState.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/stack/StackScrollState.java
@@ -23,6 +23,7 @@ import android.view.ViewGroup;
 
 import com.android.systemui.R;
 import com.android.systemui.statusbar.DismissView;
+import com.android.systemui.statusbar.EmptyShadeView;
 import com.android.systemui.statusbar.ExpandableView;
 import com.android.systemui.statusbar.SpeedBumpView;
 
@@ -180,6 +181,11 @@ public class StackScrollState {
                     DismissView dismissView = (DismissView) child;
                     boolean visible = state.topOverLap < mClearAllTopPadding;
                     dismissView.performVisibilityAnimation(visible && !dismissView.willBeGone());
+                } else if (child instanceof EmptyShadeView) {
+                    EmptyShadeView emptyShadeView = (EmptyShadeView) child;
+                    boolean visible = state.topOverLap <= 0;
+                    emptyShadeView.performVisibilityAnimation(
+                            visible && !emptyShadeView.willBeGone());
                 }
             }
         }