Handle server errors better than just stopping.

[remoteglot] / www / js / remoteglot.js

diff --git a/www/js/remoteglot.js b/www/js/remoteglot.js
index 303f148a2226a845179a8c23bc85e1e916114c0d..f6b4c43c7d7409a23385ee39c5273d7efc9d45c5 100644 (file)
--- a/www/js/remoteglot.js
+++ b/www/js/remoteglot.js
@@ -1,3 +1,5 @@
+(function() {
+
 var board = [];
 var arrows = [];
 var arrow_targets = [];
@@ -7,7 +9,7 @@ var highlight_from = undefined;
 var highlight_to = undefined;
 var unique = Math.random();
 
-var request_update = function(board, first) {
+var request_update = function(board) {
        $.ajax({
                url: "http://analysis.sesse.net/analysis.pl?ims=" + ims + "&unique=" + unique
                //url: "http://analysis.sesse.net:5000/analysis.pl?ims=" + ims + "&unique=" + unique
@@ -15,6 +17,9 @@ var request_update = function(board, first) {
                ims = xhr.getResponseHeader('X-Remoteglot-Last-Modified');
                var num_viewers = xhr.getResponseHeader('X-Remoteglot-Num-Viewers');
                update_board(board, data, num_viewers);
+       }).fail(function() {
+               // Wait ten seconds, then try again.
+               setTimeout(function() { request_update(board); }, 10000);
        });
 }
 
@@ -428,14 +433,14 @@ var update_board = function(board, data, num_viewers) {
        }
 
        // Next update.
-       setTimeout(function() { request_update(board, 0); }, 100);
+       setTimeout(function() { request_update(board); }, 100);
 }
 
 var init = function() {
        // Create board.
        board = new ChessBoard('board', 'start');
 
-       request_update(board, 1);
+       request_update(board);
        $(window).resize(function() {
                board.resize();
                update_highlight();
@@ -443,3 +448,5 @@ var init = function() {
        });
 };
 $(document).ready(init);
+
+})();