Scrims should be grey when in-app
Bug: 38164389
Test: runtest -x colorextraction/tests/src/com/google/android/colorextraction/ColorExtractorTest.java
Test: runtest -x tests/src/com/android/systemui/colorextraction/SysuiColorExtractorTests.java
Change-Id: Ifcc04a8562e46b4f65bce0470ccd6c02dffcf377
diff --git a/services/core/java/com/android/server/wm/WallpaperVisibilityListeners.java b/services/core/java/com/android/server/wm/WallpaperVisibilityListeners.java
new file mode 100644
index 0000000..2c06851
--- /dev/null
+++ b/services/core/java/com/android/server/wm/WallpaperVisibilityListeners.java
@@ -0,0 +1,79 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License
+ */
+
+package com.android.server.wm;
+
+import android.os.RemoteCallbackList;
+import android.os.RemoteException;
+import android.util.SparseArray;
+import android.view.IWallpaperVisibilityListener;
+
+/**
+ * Manages and trigger wallpaper visibility listeners.
+ */
+class WallpaperVisibilityListeners {
+
+ /**
+ * A map of displayIds and its listeners.
+ */
+ private final SparseArray<RemoteCallbackList<IWallpaperVisibilityListener>> mDisplayListeners =
+ new SparseArray<>();
+
+ void registerWallpaperVisibilityListener(IWallpaperVisibilityListener listener,
+ int displayId) {
+ RemoteCallbackList<IWallpaperVisibilityListener> listeners =
+ mDisplayListeners.get(displayId);
+ if (listeners == null) {
+ listeners = new RemoteCallbackList<>();
+ mDisplayListeners.append(displayId, listeners);
+ }
+ listeners.register(listener);
+ }
+
+ void unregisterWallpaperVisibilityListener(IWallpaperVisibilityListener listener,
+ int displayId) {
+ RemoteCallbackList<IWallpaperVisibilityListener> listeners =
+ mDisplayListeners.get(displayId);
+ if (listeners == null) {
+ return;
+ }
+ listeners.unregister(listener);
+ }
+
+ void notifyWallpaperVisibilityChanged(DisplayContent displayContent) {
+ final int displayId = displayContent.getDisplayId();
+ final boolean visible = displayContent.mWallpaperController.isWallpaperVisible();
+ RemoteCallbackList<IWallpaperVisibilityListener> displayListeners =
+ mDisplayListeners.get(displayId);
+
+ // No listeners for this display.
+ if (displayListeners == null) {
+ return;
+ }
+
+ int i = displayListeners.beginBroadcast();
+ while (i > 0) {
+ i--;
+ IWallpaperVisibilityListener listener = displayListeners.getBroadcastItem(i);
+ try {
+ listener.onWallpaperVisibilityChanged(visible, displayId);
+ } catch (RemoteException e) {
+ // Nothing to do in here, RemoteCallbackListener will clean it up.
+ }
+ }
+ displayListeners.finishBroadcast();
+ }
+}