Watch for profile changes and push to user manager

If the contacts Me Profile changes, push a copy of the photo to
user manager for user by the user switcher.

Also use an async task to load the profile data.

Change-Id: Ie784114622038ff14e3feb70f2ff51c372eecb3f

src/com/android/settings/users/ProfileUpdateReceiver.java

@@ -0,0 +1,82 @@
+/*
+ * Copyright (C) 2012 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.settings.users;
+
+import android.content.BroadcastReceiver;
+import android.content.Context;
+import android.content.Intent;
+import android.content.pm.UserInfo;
+import android.net.Uri;
+import android.os.ParcelFileDescriptor;
+import android.os.UserHandle;
+import android.os.UserManager;
+import android.provider.ContactsContract.Contacts;
+import android.provider.ContactsContract.Profile;
+import android.util.Log;
+
+import java.io.FileOutputStream;
+import java.io.IOException;
+import java.io.InputStream;
+
+/**
+ * Watches for changes to Me Profile in Contacts and writes the photo to the User Manager.
+ */
+public class ProfileUpdateReceiver extends BroadcastReceiver {
+
+    @Override
+    public void onReceive(final Context context, Intent intent) {
+        // Profile changed, lets get the photo and write to user manager
+        new Thread() {
+            public void run() {
+                copyProfilePhoto(context, null);
+            }
+        }.start();
+    }
+
+    /* Used by UserSettings as well. Call this on a non-ui thread. */
+    static boolean copyProfilePhoto(Context context, UserInfo user) {
+        Uri contactUri = Profile.CONTENT_URI;
+
+        InputStream avatarDataStream = Contacts.openContactPhotoInputStream(
+                    context.getContentResolver(),
+                    contactUri, true);
+        // If there's no profile photo, assign a default avatar
+        if (avatarDataStream == null) {
+            return false;
+        }
+        int userId = user != null ? user.id : UserHandle.myUserId();
+        UserManager um = (UserManager) context.getSystemService(Context.USER_SERVICE);
+        ParcelFileDescriptor fd = um.setUserIcon(userId);
+        FileOutputStream os = new ParcelFileDescriptor.AutoCloseOutputStream(fd);
+        byte[] buffer = new byte[4096];
+        int readSize;
+        try {
+            while ((readSize = avatarDataStream.read(buffer)) > 0) {
+                os.write(buffer, 0, readSize);
+            }
+            return true;
+        } catch (IOException ioe) {
+            Log.e("copyProfilePhoto", "Error copying profile photo " + ioe);
+        } finally {
+            try {
+                os.close();
+                avatarDataStream.close();
+            } catch (IOException ioe) { }
+        }
+        return false;
+    }
+}