Zero-click sharing for Browser using NFC.
This adds zero-click sharing for the Browser app; the URL of the
tab currently displayed will be transferred to any NFC-capable
Android phone upon touch.
Change-Id: I7aabc1b2b3f7700c05223349e5c317534fcfe8f0
diff --git a/src/com/android/browser/NfcHandler.java b/src/com/android/browser/NfcHandler.java
new file mode 100644
index 0000000..bdfe25e
--- /dev/null
+++ b/src/com/android/browser/NfcHandler.java
@@ -0,0 +1,73 @@
+/*
+ * Copyright (C) 2011 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.browser;
+
+import android.app.Activity;
+import android.nfc.NdefMessage;
+import android.nfc.NdefRecord;
+import android.nfc.NfcAdapter;
+
+/** This class implements sharing the URL of the currently
+ * shown browser page over NFC. Sharing is only active
+ * when the activity is in the foreground and resumed.
+ * Incognito tabs will not be shared over NFC.
+ */
+public class NfcHandler implements NfcAdapter.NdefPushCallback {
+ private NfcAdapter mNfcAdapter;
+ private Activity mActivity;
+ private Controller mController;
+
+ public NfcHandler(Activity browser, Controller controller) {
+ mActivity = browser;
+ mController = controller;
+ mNfcAdapter = NfcAdapter.getDefaultAdapter(mActivity);
+ }
+
+ void onPause() {
+ if (mNfcAdapter != null) {
+ mNfcAdapter.disableForegroundNdefPush(mActivity);
+ }
+ }
+
+ void onResume() {
+ if (mNfcAdapter != null) {
+ mNfcAdapter.enableForegroundNdefPush(mActivity, this);
+ }
+ }
+
+ @Override
+ public NdefMessage createMessage() {
+ Tab currentTab = mController.getCurrentTab();
+ if (currentTab == null) {
+ return null;
+ }
+ String currentUrl = currentTab.getUrl();
+ if (currentUrl != null && currentTab.getWebView() != null &&
+ !currentTab.getWebView().isPrivateBrowsingEnabled()) {
+ NdefRecord record = new NdefRecord(NdefRecord.TNF_ABSOLUTE_URI,
+ NdefRecord.RTD_URI, new byte[] {}, currentUrl.getBytes());
+ NdefMessage msg = new NdefMessage(new NdefRecord[] { record });
+ return msg;
+ } else {
+ return null;
+ }
+ }
+
+ @Override
+ public void onMessagePushed() {
+ }
+}