Merge pull request #428 from muffinresearch/wrap-scrollto-with-timeou…

…t-android

Wrap scrollTo in setTimeout for android (bug 986625)

hearth/media/js/navigation.js

@@ -10,6 +10,7 @@ define('navigation',
         {path: '/', type: 'root'}
     ];
     var initialized = false;
+    var scrollTimer;
 
     function extract_nav_url(url) {
         // This function returns the URL that we should use for navigation.
@@ -71,8 +72,20 @@ define('navigation',
             top = state.scrollTop;
         }
 
-        console.log('Setting scroll immediately to ', top);
-        window.scrollTo(0, top);
+        // For android a small delay is required.
+        if (capabilities.firefoxAndroid) {
+            if (scrollTimer) {
+                window.clearTimeout(scrollTimer);
+            }
+            scrollTimer = window.setTimeout(function() {
+                console.log('Setting scroll to', top);
+                window.scrollTo(0, top);
+            }, 250);
+        // For everything else we scroll immediately.
+        } else {
+            console.log('Setting scroll immediately to ', top);
+            window.scrollTo(0, top);
+        }
 
         // Clean the path's parameters.
         // /foo/bar?foo=bar&q=blah -> /foo/bar?q=blah