X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=www%2Fjs%2Fremoteglot.js;h=f6b4c43c7d7409a23385ee39c5273d7efc9d45c5;hb=73a78c97272fcd068f61469f868068cc94c723b4;hp=671c3d08e7e967bdade4ccddf975d6fe7787c430;hpb=660cb086140cb9e77100b39f4fe14b4d3bf94686;p=remoteglot

diff --git a/www/js/remoteglot.js b/www/js/remoteglot.js
index 671c3d0..f6b4c43 100644
--- a/www/js/remoteglot.js
+++ b/www/js/remoteglot.js
@@ -1,3 +1,5 @@
+(function() {
+
 var board = [];
 var arrows = [];
 var arrow_targets = [];
@@ -5,14 +7,19 @@ var occupied_by_arrows = [];
 var ims = 0;
 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?first=" + first
-		url: "http://analysis.sesse.net:5000/analysis.pl?ims=" + ims
+		url: "http://analysis.sesse.net/analysis.pl?ims=" + ims + "&unique=" + unique
+		//url: "http://analysis.sesse.net:5000/analysis.pl?ims=" + ims + "&unique=" + unique
 	}).done(function(data, textstatus, xhr) {
 		ims = xhr.getResponseHeader('X-Remoteglot-Last-Modified');
-		update_board(board, data);
+		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);
 	});
 }
 
@@ -277,7 +284,7 @@ var update_highlight = function()  {
 	}
 }
 
-var update_board = function(board, data) {
+var update_board = function(board, data, num_viewers) {
 	// The headline.
 	var headline = 'Analysis';
 	if (data.position.last_move !== 'none') {
@@ -290,6 +297,14 @@ var update_board = function(board, data) {
 
 	$("#headline").text(headline);
 
+	if (num_viewers === null) {
+		$("#numviewers").text("");
+	} else if (num_viewers == 1) {
+		$("#numviewers").text("You are the only current viewer");
+	} else {
+		$("#numviewers").text(num_viewers + " current viewers");
+	}
+
 	// The score.
 	if (data.score !== null) {
 		$("#score").text(data.score);
@@ -418,14 +433,14 @@ var update_board = function(board, data) {
 	}
 
 	// 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();
@@ -433,3 +448,5 @@ var init = function() {
 	});
 };
 $(document).ready(init);
+
+})();