1 files changed, 71 insertions, 0 deletions
diff --git a/src/com/android/gallery3d/app/PackagesMonitor.java b/src/com/android/gallery3d/app/PackagesMonitor.java
new file mode 100644
index 000000000..9b2412f1b
--- /dev/null
+++ b/src/com/android/gallery3d/app/PackagesMonitor.java
@@ -0,0 +1,71 @@
+/*
+ * Copyright (C) 2010 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.gallery3d.app;
+
+import android.app.IntentService;
+import android.content.BroadcastReceiver;
+import android.content.Context;
+import android.content.Intent;
+import android.content.SharedPreferences;
+import android.preference.PreferenceManager;
+
+import com.android.gallery3d.picasasource.PicasaSource;
+import com.android.gallery3d.util.LightCycleHelper;
+
+public class PackagesMonitor extends BroadcastReceiver {
+    public static final String KEY_PACKAGES_VERSION  = "packages-version";
+
+    public synchronized static int getPackagesVersion(Context context) {
+        SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(context);
+        return prefs.getInt(KEY_PACKAGES_VERSION, 1);
+    }
+
+    @Override
+    public void onReceive(final Context context, final Intent intent) {
+        intent.setClass(context, AsyncService.class);
+        context.startService(intent);
+    }
+
+    public static class AsyncService extends IntentService {
+        public AsyncService() {
+            super("GalleryPackagesMonitorAsync");
+        }
+
+        @Override
+        protected void onHandleIntent(Intent intent) {
+            onReceiveAsync(this, intent);
+        }
+    }
+
+    // Runs in a background thread.
+    private static void onReceiveAsync(Context context, Intent intent) {
+        SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(context);
+
+        int version = prefs.getInt(KEY_PACKAGES_VERSION, 1);
+        prefs.edit().putInt(KEY_PACKAGES_VERSION, version + 1).commit();
+
+        String action = intent.getAction();
+        String packageName = intent.getData().getSchemeSpecificPart();
+        if (Intent.ACTION_PACKAGE_ADDED.equals(action)) {
+            PicasaSource.onPackageAdded(context, packageName);
+        } else if (Intent.ACTION_PACKAGE_REMOVED.equals(action)) {
+            PicasaSource.onPackageRemoved(context, packageName);
+        } else if (Intent.ACTION_PACKAGE_CHANGED.equals(action)) {
+            PicasaSource.onPackageChanged(context, packageName);
+        }
+    }
+}