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gaia/apps/communications/contacts/js/nfc.js

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+'use strict';
+
+/* global LazyLoader, ContactToVcard, MozNDEFRecord, fb, utils,
+          NDEF, NfcUtils, utils*/
+/* exported NFC */
+
+(function(exports) {
+  var mozNfc = window.navigator.mozNfc;
+  var currentContact;
+  var vCardContact;
+  var mozNfcPeer;
+
+  var startListening = function(contact) {
+    if (!mozNfc) {
+      return;
+    }
+
+    currentContact = contact;
+    // We cannot share Facebook data via NFC so we check if the contact
+    // is an FB contacts. However, if the contact is linked to a regular
+    // mozContact, we can share linked data
+    if (fb && !(fb.isFbContact(contact) && !fb.isFbLinked(contact))) {
+      mozNfc.onpeerready = handlePeerReady;
+    } else {
+      mozNfc.onpeerready = handlePeerReadyForFb;
+    }
+  };
+
+  var stopListening = function() {
+    if (!mozNfc) {
+      return;
+    }
+
+    mozNfc.onpeerready = null;
+    currentContact = null;
+    vCardContact = null;
+    mozNfcPeer = null;
+  };
+
+  var handlePeerReady = function(event) {
+    mozNfcPeer = event.peer;
+    LazyLoader.load([
+      '/shared/js/contact2vcard.js',
+      '/shared/js/setImmediate.js',
+      '/shared/js/nfc_utils.js'
+      ], function() {
+      ContactToVcard(
+        [currentContact],
+        function append(vcard) {
+          vCardContact = vcard;
+        },
+        function success() {
+          sendContact();
+        },
+        // use default batch size
+        null,
+        // We don't want to share a profile photo via NFC,
+        // like on Android:
+        // https://bugzilla.mozilla.org/show_bug.cgi?id=1003767#c5
+        true
+      );
+    });
+  };
+
+  var sendContact = function() {
+     var nfcUtils = new NfcUtils();
+     var NDEFRecord = new MozNDEFRecord({
+       tnf: NDEF.TNF_MIME_MEDIA,
+       type: nfcUtils.fromUTF8('text/vcard'),
+       payload: nfcUtils.fromUTF8(vCardContact)
+     });
+
+     var promise = mozNfcPeer.sendNDEF([NDEFRecord]);
+     promise.then(() => {
+       console.log('Contact succesfuly sent');
+     }).catch(e => {
+       console.log('Something goes wrong : ' + e);
+     });
+  };
+
+  var handlePeerReadyForFb = function() {
+    utils.status.show({
+      id: 'facebook-export-forbidden'
+    });
+  };
+
+  var nfc_tools = {
+    startListening: startListening,
+    stopListening: stopListening
+  };
+
+  exports.NFC = nfc_tools;
+
+}(window));