Merge "Use actual lockscreen wallpaper" into nyc-dev

am: 6e99febd18

* commit '6e99febd180a72536a08cf4c0456d852a47e9b2f':
  Use actual lockscreen wallpaper

packages/SystemUI/src/com/android/systemui/statusbar/phone/LockscreenWallpaper.java

@@ -0,0 +1,124 @@
+/*
+ * Copyright (C) 2016 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.systemui.statusbar.phone;
+
+import android.app.ActivityManager;
+import android.app.IWallpaperManager;
+import android.app.IWallpaperManagerCallback;
+import android.app.WallpaperManager;
+import android.content.Context;
+import android.graphics.Bitmap;
+import android.graphics.BitmapFactory;
+import android.os.Bundle;
+import android.os.Handler;
+import android.os.ParcelFileDescriptor;
+import android.os.RemoteException;
+import android.os.ServiceManager;
+import android.util.Log;
+
+import libcore.io.IoUtils;
+
+/**
+ * Manages the lockscreen wallpaper.
+ */
+public class LockscreenWallpaper extends IWallpaperManagerCallback.Stub implements Runnable {
+
+    private static final String TAG = "LockscreenWallpaper";
+
+    private final Context mContext;
+    private final PhoneStatusBar mBar;
+    private final IWallpaperManager mService;
+    private final Handler mH;
+
+    private boolean mCached;
+    private Bitmap mCache;
+    private int mUserId;
+
+    public LockscreenWallpaper(Context ctx, PhoneStatusBar bar, Handler h) {
+        mContext = ctx;
+        mBar = bar;
+        mH = h;
+        mService = IWallpaperManager.Stub.asInterface(
+                ServiceManager.getService(Context.WALLPAPER_SERVICE));
+        mUserId = ActivityManager.getCurrentUser();
+
+        try {
+            mService.setLockWallpaperCallback(this);
+        } catch (RemoteException e) {
+            Log.e(TAG, "System dead?" + e);
+        }
+    }
+
+    public Bitmap getBitmap() {
+        try {
+            if (mCached) {
+                return mCache;
+            }
+            if (!mService.isWallpaperSupported(mContext.getOpPackageName())) {
+                mCached = true;
+                mCache = null;
+                return null;
+            }
+            ParcelFileDescriptor fd = mService.getWallpaper(null, WallpaperManager.FLAG_SET_LOCK,
+                    new Bundle(), mUserId);
+            if (fd != null) {
+                try {
+                    BitmapFactory.Options options = new BitmapFactory.Options();
+                    mCache = BitmapFactory.decodeFileDescriptor(
+                            fd.getFileDescriptor(), null, options);
+                    mCached = true;
+                    return mCache;
+                } catch (OutOfMemoryError e) {
+                    Log.w(TAG, "Can't decode file", e);
+                    return null;
+                } finally {
+                    IoUtils.closeQuietly(fd);
+                }
+            } else {
+                mCached = true;
+                mCache = null;
+                return null;
+            }
+        } catch (RemoteException e) {
+            Log.e(TAG, "System dead?" + e);
+            return null;
+        }
+    }
+
+    public void setUser(int user) {
+        if (user != mUserId) {
+            mCached = false;
+            mUserId = user;
+        }
+    }
+
+    @Override
+    public void onWallpaperChanged() {
+        // Called on Binder thread.
+        mH.removeCallbacks(this);
+        mH.post(this);
+    }
+
+    @Override
+    public void run() {
+        // Called in response to onWallpaperChanged on the main thread.
+        mCached = false;
+        mCache = null;
+        getBitmap();
+        mBar.updateMediaMetaData(true /* metaDataChanged */, true /* allowEnterAnimation */);
+    }
+}

packages/SystemUI/src/com/android/systemui/statusbar/phone/PhoneStatusBar.java

@@ -23,6 +23,7 @@ import android.annotation.NonNull;
 import android.app.ActivityManager;
 import android.app.ActivityManagerNative;
 import android.app.IActivityManager;
+import android.app.IWallpaperManagerCallback;
 import android.app.Notification;
 import android.app.PendingIntent;
 import android.app.StatusBarManager;
@@ -248,9 +249,7 @@ public class PhoneStatusBar extends BaseStatusBar implements DemoMode,
     private static final boolean ONLY_CORE_APPS;
 
     /** If true, the lockscreen will show a distinct wallpaper */
-    private static final boolean ENABLE_LOCKSCREEN_WALLPAPER =
-            !ActivityManager.isLowRamDeviceStatic()
-                    && SystemProperties.getBoolean("debug.lockscreen_wallpaper", false);
+    private static final boolean ENABLE_LOCKSCREEN_WALLPAPER = true;
 
     /* If true, the device supports freeform window management.
      * This affects the status bar UI. */
@@ -296,6 +295,7 @@ public class PhoneStatusBar extends BaseStatusBar implements DemoMode,
     AccessibilityController mAccessibilityController;
     FingerprintUnlockController mFingerprintUnlockController;
     LightStatusBarController mLightStatusBarController;
+    private LockscreenWallpaper mLockscreenWallpaper;
 
     int mNaturalBarHeight = -1;
 
@@ -792,6 +792,10 @@ public class PhoneStatusBar extends BaseStatusBar implements DemoMode,
                 mKeyguardBottomArea.getLockIcon());
         mKeyguardBottomArea.setKeyguardIndicationController(mKeyguardIndicationController);
 
+        if (ENABLE_LOCKSCREEN_WALLPAPER) {
+            mLockscreenWallpaper = new LockscreenWallpaper(mContext, this, mHandler);
+        }
+
         // set the initial view visibility
         setAreThereNotifications();
 
@@ -1819,7 +1823,7 @@ public class PhoneStatusBar extends BaseStatusBar implements DemoMode,
     };
 
     /**
-     * Refresh or remove lockscreen artwork from media metadata.
+     * Refresh or remove lockscreen artwork from media metadata or the lockscreen wallpaper.
      */
     public void updateMediaMetaData(boolean metaDataChanged, boolean allowEnterAnimation) {
         if (!SHOW_LOCKSCREEN_MEDIA_ARTWORK) return;
@@ -1847,10 +1851,7 @@ public class PhoneStatusBar extends BaseStatusBar implements DemoMode,
             }
         }
         if (ENABLE_LOCKSCREEN_WALLPAPER && artworkBitmap == null) {
-            // TODO: use real lockscreen wallpaper.
-            WallpaperManager wallpaperManager = mContext
-                    .getSystemService(WallpaperManager.class);
-            artworkBitmap = wallpaperManager.getBitmap();
+            artworkBitmap = mLockscreenWallpaper.getBitmap();
         }
 
         final boolean hasArtwork = artworkBitmap != null;
@@ -3084,10 +3085,6 @@ public class PhoneStatusBar extends BaseStatusBar implements DemoMode,
             else if (Intent.ACTION_SCREEN_ON.equals(action)) {
                 notifyNavigationBarScreenOn(true);
             }
-            else if (ENABLE_LOCKSCREEN_WALLPAPER
-                    && Intent.ACTION_WALLPAPER_CHANGED.equals(action)) {
-                updateMediaMetaData(true, true);
-            }
         }
     };
 
@@ -3173,6 +3170,7 @@ public class PhoneStatusBar extends BaseStatusBar implements DemoMode,
         resetUserSetupObserver();
         setControllerUsers();
         clearCurrentMediaNotification();
+        mLockscreenWallpaper.setUser(newUserId);
         updateMediaMetaData(true, false);
     }