add market welcome back integration point.

Bug: 10633516
Change-Id: Idf1be9b2bf47cebd97d9f14f535c60264e060845
diff --git a/src/com/android/launcher3/MarketUpdateReceiver.java b/src/com/android/launcher3/MarketUpdateReceiver.java
new file mode 100644
index 0000000..c41bf3e
--- /dev/null
+++ b/src/com/android/launcher3/MarketUpdateReceiver.java
@@ -0,0 +1,86 @@
+/*
+ * Copyright (C) 2013 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.launcher3;
+
+import android.app.Activity;
+import android.content.BroadcastReceiver;
+import android.content.Context;
+import android.content.Intent;
+import android.net.Uri;
+import android.util.Log;
+
+public class MarketUpdateReceiver extends BroadcastReceiver {
+    private static final String TAG = "MarketUpdateReceiver";
+
+    private static final String ACTION_PACKAGE_ENQUEUED =
+            "com.android.launcher.action.ACTION_PACKAGE_ENQUEUED";
+    private static final String ACTION_PACKAGE_DOWNLOADING =
+            "com.android.launcher.action.ACTION_PACKAGE_DOWNLOADING";
+    private static final String ACTION_PACKAGE_INSTALLING =
+            "com.android.launcher.action.ACTION_PACKAGE_INSTALLING";
+    private static final String ACTION_PACKAGE_DEQUEUED =
+            "com.android.launcher.action.ACTION_PACKAGE_DEQUEUED";
+
+    /** extra for {@link #ACTION_PACKAGE_ENQUEUED}, send on of the following values **/
+    private static final String EXTRA_KEY_REASON = "reason";
+    private static final String EXTRA_VALUE_REASON_INSTALL = "install";
+    private static final String EXTRA_VALUE_REASON_UPDATE = "update";
+    private static final String EXTRA_VALUE_REASON_RESTORE = "restore";
+
+    /** extra for {@link #ACTION_PACKAGE_DOWNLOADING}, send an int in the range [0-100]. **/
+    private static final String EXTRA_KEY_PROGRESS = "progress";
+
+    /**
+     * extra for {@link #ACTION_PACKAGE_DEQUEUED}
+     * send {@link android.app.Activity#RESULT_OK} on success.
+     * or {@link android.app.Activity#RESULT_CANCELED} if the package was abandoned.
+     * **/
+    private static final String EXTRA_KEY_STATUS =
+            "com.android.launcher.action.EXTRA_STATUS";
+
+    @Override
+    public void onReceive(Context context, Intent intent) {
+        final String action = intent.getAction();
+        String pkgName = "none";
+        Uri uri = intent.getData();
+        if (uri != null) {
+            pkgName = uri.getSchemeSpecificPart();;
+        }
+        if (ACTION_PACKAGE_ENQUEUED.equals(action)) {
+            String reason = "unknown";
+            if (intent.hasExtra(EXTRA_KEY_REASON)) {
+                reason = intent.getStringExtra(EXTRA_KEY_REASON);
+            }
+            Log.d(TAG, "market has promised to " + reason + ": " + pkgName);
+        } else if (ACTION_PACKAGE_DOWNLOADING.equals(action)) {
+            int progress = intent.getIntExtra(EXTRA_KEY_PROGRESS, 0);
+            Log.d(TAG, "market is downloading (" + progress + "%): " + pkgName);
+        } else if (ACTION_PACKAGE_INSTALLING.equals(action)) {
+            Log.d(TAG, "market is installing: " + pkgName);
+        } else if ( ACTION_PACKAGE_DEQUEUED.equals(action)) {
+            boolean success = Activity.RESULT_OK == intent.getIntExtra(EXTRA_KEY_STATUS,
+                    Activity.RESULT_CANCELED);
+            if (success) {
+                Log.d(TAG, "market has installed: " + pkgName);
+            } else {
+                Log.d(TAG, "market has decided not to install: " + pkgName);
+            }
+        } else {
+            Log.d(TAG, "unknown message " + action);
+        }
+    }
+}