automatically register content handler for feeds in firefox

1 files changed, 38 insertions, 4 deletions

diff --git a/js/gui/ExternSubscription.js b/js/gui/ExternSubscription.js
index c54316c4a..5cbff409f 100644
--- a/js/gui/ExternSubscription.js
+++ b/js/gui/ExternSubscription.js
@@ -12,13 +12,47 @@
  * This prefills the add feed section if an external link has ?subsribe_to
  * filled out
  */
-(function (document, url, $, undefined) {
+(function (window, document, navigator, url, $, undefined) {
     'use strict';
 
+    // register reader as feed reader in firefox
+    var location = window.location;
+    var storage = window.localStorage;
+
+    // if isContentHandlerRegistered is not implemented (Firefox I'm looking
+    // at you) we use localstorage to prevent registering the feed reader twice
+    var isRegistered = function (mime, url) {
+        if (navigator.isContentHandlerRegistered) {
+            return navigator.isContentHandlerRegistered(mime, url) === 'new';
+        } else {
+            return storage.getItem('registeredHandler') !== url;
+        }
+    };
+
+    var registerHandler = function (mime, url, title) {
+        if (navigator.registerContentHandler && !isRegistered(mime, url)) {
+            navigator.registerContentHandler(mimeType, subscribeUrl, title);
+            if (!navigator.isContentHandlerRegistered) {
+                storage.setItem('registeredHandler', url);
+            }
+        }
+    };
+
+    var cleanUrl = location.protocol + '//' + location.host + location.pathname;
+
+    var subscribeUrl = cleanUrl + '?subscribe_to=%s';
+    var mimeType = 'application/vnd.mozilla.maybe.feed';
+    var title = 'ownCloud News @ ' + cleanUrl;
+
+    registerHandler(mimeType, subscribeUrl, title);
+
+
     $(document).ready(function () {
-        var subscription = url('?subscribe_to');
+        var subscription = window.decodeURIComponent(url('?subscribe_to'));
+
+        console.log(subscription);
 
-        if (subscription) {
+        if (subscription && subscription !== 'null') {
             $('#new-feed').show();
 
             var input = $('input[ng-model="Navigation.feed.url"]');
@@ -32,5 +66,5 @@
         }
     });
 
-})(document, url, $);
+})(window, document, navigator, url, $);