X-Git-Url: https://git.sesse.net/?p=remoteglot;a=blobdiff_plain;f=www%2Fjs%2Fremoteglot.js;h=d75b3fca18b980a9dec369699728747d1614699d;hp=595bce185aa1a3457dc89cb5241fe5abee9c307e;hb=944e74aaa3c5b3038d16d8be1461be6f6f33a4b4;hpb=2e6f47cc12a8ce6fdd3c8d5da5183abb8cc3719a

diff --git a/www/js/remoteglot.js b/www/js/remoteglot.js
index 595bce1..d75b3fc 100644
--- a/www/js/remoteglot.js
+++ b/www/js/remoteglot.js
@@ -48,8 +48,8 @@ var highlight_to = undefined;
 /** @type {?jQuery} @private */
 var highlighted_move = null;
 
-/** @type {!number} @private */
-var unique = Math.random();
+/** @type {?number} @private */
+var unique = null;
 
 /** The current position on the board, represented as a FEN string.
  * @type {?string}
@@ -76,6 +76,28 @@ var current_display_line = null;
 /** @type {?number} @private */
 var current_display_move = null;
 
+var supports_html5_storage = function() {
+	try {
+		return 'localStorage' in window && window['localStorage'] !== null;
+	} catch (e) {
+		return false;
+	}
+}
+
+// Make the unique token persistent so people refreshing the page won't count twice.
+// Of course, you can never fully protect against people deliberately wanting to spam.
+var get_unique = function() {
+	var use_local_storage = supports_html5_storage();
+	if (use_local_storage && localStorage['unique']) {
+		return localStorage['unique'];
+	}
+	var unique = Math.random();
+	if (use_local_storage) {
+		localStorage['unique'] = unique;
+	}
+	return unique;
+}
+
 var request_update = function() {
 	$.ajax({
 		url: "http://analysis.sesse.net/analysis.pl?ims=" + ims + "&unique=" + unique
@@ -418,7 +440,7 @@ var print_pv = function(line_num, pretty_pv, move_num, toplay, opt_limit, opt_sh
 			++i;
 		}
 		move_num += i / 2;
-	} else if (toplay == 'B') {
+	} else if (toplay == 'B' && pretty_pv.length > 0) {
 		var move = "<a class=\"move\" id=\"automove" + line_num + "-0\" href=\"javascript:show_line(" + line_num + ", " + 0 + ");\">" + pretty_pv[0] + "</a>";
 		pv = move_num + '. … ' + move;
 		toplay = 'W';
@@ -550,14 +572,18 @@ var update_board = function(data, num_viewers) {
 	} else {
 		headline = 'Analysis';
 	}
+	var last_move;
 	if (data['position']['last_move'] !== 'none') {
-		headline += ' after '
 		if (data['position']['toplay'] == 'W') {
-			headline += (data['position']['move_num']-1) + '… ';
+			last_move = (data['position']['move_num']-1) + '… ';
 		} else {
-			headline += data['position']['move_num'] + '. ';
+			last_move = data['position']['move_num'] + '. ';
 		}
-		headline += data['position']['last_move'];
+		last_move += data['position']['last_move'];
+
+		headline += ' after ' + last_move;
+	} else {
+		last_move = null;
 	}
 
 	$("#headline").text(headline);
@@ -580,8 +606,24 @@ var update_board = function(data, num_viewers) {
 		$("#score").text(data['score']);
 	}
 
+	var title_elems = [];
+	if (data['short_score'] !== undefined && data['short_score'] !== null) {
+		title_elems.push(data['short_score']);
+	}
+	if (last_move !== null) {
+		title_elems.push(last_move);
+	}
+
+	if (title_elems.length != 0) {
+		document.title = '(' + title_elems.join(', ') + ') analysis.sesse.net';
+	} else {
+		document.title = 'analysis.sesse.net';
+	}
+
 	// The search stats.
-	if (data['nodes'] && data['nps'] && data['depth']) {
+	if (data['tablebase'] == 1) {
+		$("#searchstats").text("Tablebase result");
+	} else if (data['nodes'] && data['nps'] && data['depth']) {
 		var stats = thousands(data['nodes']) + ' nodes, ' + thousands(data['nps']) + ' nodes/sec, depth ' + data['depth'] + ' ply';
 		if (data['seldepth']) {
 			stats += ' (' + data['seldepth'] + ' selective)';
@@ -595,6 +637,8 @@ var update_board = function(data, num_viewers) {
 		}
 
 		$("#searchstats").text(stats);
+	} else {
+		$("#searchstats").text("");
 	}
 
 	// Update the board itself.
@@ -809,6 +853,8 @@ var update_displayed_line = function() {
 }
 
 var init = function() {
+	unique = get_unique();
+
 	// Create board.
 	board = new window.ChessBoard('board', 'start');
 	hiddenboard = new window.ChessBoard('hiddenboard', 'start');