X-Git-Url: https://git.sesse.net/?p=remoteglot;a=blobdiff_plain;f=www%2Fjs%2Fremoteglot.js;h=673fd12eacb0e3cf9a2e7b4b5c8b4f330d81a389;hp=d34b4d6bf8767675952e892f264e11641159abcf;hb=243c535dd2efc9d8126aa6c153292d8253239dd9;hpb=bc53c53fedfe3c5514e4a5c01bde99133e7584af diff --git a/www/js/remoteglot.js b/www/js/remoteglot.js index d34b4d6..673fd12 100644 --- a/www/js/remoteglot.js +++ b/www/js/remoteglot.js @@ -1,5 +1,22 @@ (function() { +/** + * Version of this script. If the server returns a version larger than + * this, it is a sign we should reload to upgrade ourselves. + * + * @type {Number} + * @const + * @private */ +var SCRIPT_VERSION = 2015062104; + +/** + * The current backend URL. + * + * @type {!string} + * @private + */ +var backend_url = "/analysis.pl"; + /** @type {window.ChessBoard} @private */ var board = null; @@ -108,6 +125,32 @@ var current_display_line_is_history = false; /** @type {?number} @private */ var current_display_move = null; +/** + * The current backend request to get main analysis (not history), if any, + * so that we can abort it. + * + * @type {?jqXHR} + * @private + */ +var current_analysis_xhr = null; + +/** + * The current timer to fire off a request to get main analysis (not history), + * if any, so that we can abort it. + * + * @type {?Number} + * @private + */ +var current_analysis_request_timer = null; + +/** + * The current backend request to get historic data, if any. + * + * @type {?jqXHR} + * @private + */ +var current_historic_xhr = null; + var supports_html5_storage = function() { try { return 'localStorage' in window && window['localStorage'] !== null; @@ -131,26 +174,43 @@ var get_unique = function() { } var request_update = function() { - $.ajax({ - url: "/analysis.pl?ims=" + ims + "&unique=" + unique + current_analysis_request_timer = null; + + current_analysis_xhr = $.ajax({ + url: backend_url + "?ims=" + ims + "&unique=" + unique }).done(function(data, textstatus, xhr) { sync_server_clock(xhr.getResponseHeader('Date')); ims = xhr.getResponseHeader('X-RGLM'); var num_viewers = xhr.getResponseHeader('X-RGNV'); - possibly_play_sound(current_analysis_data, data); + var new_data; if (Array.isArray(data)) { - current_analysis_data = JSON_delta.patch(current_analysis_data, data); + new_data = JSON.parse(JSON.stringify(current_analysis_data)); + JSON_delta.patch(new_data, data); } else { - current_analysis_data = data; + new_data = data; } + + var minimum_version = xhr.getResponseHeader('X-RGMV'); + if (minimum_version && minimum_version > SCRIPT_VERSION) { + // Upgrade to latest version with a force-reload. + location.reload(true); + } + + possibly_play_sound(current_analysis_data, new_data); + current_analysis_data = new_data; update_board(current_analysis_data, displayed_analysis_data); update_num_viewers(num_viewers); // Next update. - setTimeout(function() { request_update(); }, 100); - }).fail(function() { - // Wait ten seconds, then try again. - setTimeout(function() { request_update(); }, 10000); + current_analysis_request_timer = setTimeout(function() { request_update(); }, 100); + }).fail(function(jqXHR, textStatus, errorThrown) { + if (textStatus === "abort") { + // Aborted because we are switching backends. Abandon and don't retry, + // because another one is already started for us. + } else { + // Backend error or similar. Wait ten seconds, then try again. + current_analysis_request_timer = setTimeout(function() { request_update(); }, 10000); + } }); } @@ -192,7 +252,9 @@ var sync_server_clock = function(server_date_string) { var clear_arrows = function() { for (var i = 0; i < arrows.length; ++i) { if (arrows[i].svg) { - arrows[i].svg.parentElement.removeChild(arrows[i].svg); + if (arrows[i].svg.parentElement) { + arrows[i].svg.parentElement.removeChild(arrows[i].svg); + } delete arrows[i].svg; } } @@ -307,7 +369,9 @@ var point_from_end = function(x1, y1, x2, y2, t, u) { var position_arrow = function(arrow) { if (arrow.svg) { - arrow.svg.parentElement.removeChild(arrow.svg); + if (arrow.svg.parentElement) { + arrow.svg.parentElement.removeChild(arrow.svg); + } delete arrow.svg; } if (current_display_line !== null && !current_display_line_is_history) { @@ -674,6 +738,28 @@ var update_board = function(current_data, display_data) { } update_history(); + // Games currently in progress, if any. + $("#games").text(""); + if (current_data['games']) { + var games_div = document.getElementById('games'); + for (var game_num = 0; game_num < current_data['games'].length; ++game_num) { + var game = current_data['games'][game_num]; + var game_span = document.createElement("span"); + game_span.setAttribute("class", "game"); + + var game_name = document.createTextNode(game['name']); + if (game['url'] === backend_url) { + game_span.appendChild(game_name); + } else { + var game_a = document.createElement("a"); + game_a.setAttribute("href", "javascript:switch_backend('" + game['url'] + "')"); + game_a.appendChild(game_name); + game_span.appendChild(game_a); + } + games_div.appendChild(game_span); + } + } + // The headline. Names are always fetched from current_data; // the rest can depend a bit. var headline; @@ -685,14 +771,57 @@ var update_board = function(current_data, display_data) { headline = 'Analysis'; } + // Credits, where applicable. Note that we don't want the footer to change a lot + // when e.g. viewing history, so if any of these changed during the game, + // use the current one still. + if (current_data['using_lomonosov']) { + $("#lomonosov").show(); + } else { + $("#lomonosov").hide(); + } + + // Credits: The engine name/version. + if (current_data['engine'] && current_data['engine']['name'] !== null) { + $("#engineid").text(current_data['engine']['name']); + } + + // Credits: The engine URL. + if (current_data['engine'] && current_data['engine']['url']) { + $("#engineid").attr("href", current_data['engine']['url']); + } else { + $("#engineid").removeAttr("href"); + } + + // Credits: Engine details. + if (current_data['engine'] && current_data['engine']['details']) { + $("#enginedetails").text(" (" + current_data['engine']['details'] + ")"); + } else { + $("#enginedetails").text(""); + } + + // Credits: Move source, possibly with URL. + if (current_data['move_source'] && current_data['move_source_url']) { + $("#movesource").text("Moves provided by "); + var movesource_a = document.createElement("a"); + movesource_a.setAttribute("href", current_data['move_source_url']); + var movesource_text = document.createTextNode(current_data['move_source']); + movesource_a.appendChild(movesource_text); + var movesource_period = document.createTextNode("."); + document.getElementById("movesource").appendChild(movesource_a); + document.getElementById("movesource").appendChild(movesource_period); + } else if (current_data['move_source']) { + $("#movesource").text("Moves provided by " + current_data['move_source'] + "."); + } else { + $("#movesource").text(""); + } + var last_move; if (display_data) { // Displaying some non-current position, pick out the last move // from the history. This will work even if the fetch failed. - last_move = format_move_with_number( + last_move = format_halfmove_with_number( current_display_line.pretty_pv[current_display_move], - Math.floor((current_display_move + 1) / 2) + 1, - (current_display_move % 2 == 1)); + current_display_move + 1); headline += ' after ' + last_move; } else if (data['position']['last_move'] !== 'none') { last_move = format_move_with_number( @@ -754,11 +883,6 @@ var update_board = function(current_data, display_data) { update_clock(); - // The engine id. - if (data['id'] && data['id']['name'] !== null) { - $("#engineid").text(data['id']['name']); - } - // The score. if (data['score'] !== null) { $("#score").text(data['score']); @@ -850,6 +974,69 @@ var update_board = function(current_data, display_data) { toplay = data['position']['toplay']; refutation_lines = data['refutation_lines']; update_refutation_lines(); + + // Update the sparkline last, since its size depends on how everything else reflowed. + update_sparkline(data); +} + +var update_sparkline = function(data) { + if (data && data['score_history']) { + var first_move_num = undefined; + for (var halfmove_num in data['score_history']) { + halfmove_num = parseInt(halfmove_num); + if (first_move_num === undefined || halfmove_num < first_move_num) { + first_move_num = halfmove_num; + } + } + if (first_move_num !== undefined) { + var last_move_num = data['position']['move_num'] * 2 - 3; + if (data['position']['toplay'] === 'B') { + ++last_move_num; + } + + // Possibly truncate some moves if we don't have enough width. + // FIXME: Sometimes width() for #scorecontainer (and by extent, + // #scoresparkcontainer) on Chrome for mobile seems to start off + // at something very small, and then suddenly snap back into place. + // Figure out why. + var max_moves = Math.floor($("#scoresparkcontainer").width() / 5) - 5; + if (last_move_num - first_move_num > max_moves) { + first_move_num = last_move_num - max_moves; + } + + var min_score = -100; + var max_score = 100; + var last_score = null; + var scores = []; + for (var halfmove_num = first_move_num; halfmove_num <= last_move_num; ++halfmove_num) { + if (data['score_history'][halfmove_num]) { + var score = data['score_history'][halfmove_num][0]; + if (score < min_score) min_score = score; + if (score > max_score) max_score = score; + last_score = data['score_history'][halfmove_num][0]; + } + scores.push(last_score); + } + if (data['plot_score']) { + scores.push(data['plot_score']); + } + // FIXME: at some widths, calling sparkline() seems to push + // #scorecontainer under the board. + $("#scorespark").sparkline(scores, { + type: 'bar', + zeroColor: 'gray', + chartRangeMin: min_score, + chartRangeMax: max_score, + tooltipFormatter: function(sparkline, options, fields) { + return format_tooltip(data, fields[0].offset + first_move_num); + } + }); + } else { + $("#scorespark").text(""); + } + } else { + $("#scorespark").text(""); + } } /** @@ -1008,6 +1195,46 @@ var format_move_with_number = function(move, move_num, white_to_play) { return ret; } +/** + * @param {string} move + * @param {Number} halfmove_num + */ +var format_halfmove_with_number = function(move, halfmove_num) { + return format_move_with_number( + move, + Math.floor(halfmove_num / 2) + 1, + halfmove_num % 2 == 0); +} + +/** + * @param {Object} data + * @param {Number} halfmove_num + */ +var format_tooltip = function(data, halfmove_num) { + if (data['score_history'][halfmove_num] || + halfmove_num === data['position']['pretty_history'].length) { + var move; + var short_score; + if (halfmove_num === data['position']['pretty_history'].length) { + move = data['position']['last_move']; + short_score = data['short_score']; + } else { + move = data['position']['pretty_history'][halfmove_num]; + short_score = data['score_history'][halfmove_num][1]; + } + var move_with_number = format_halfmove_with_number(move, halfmove_num); + + return "After " + move_with_number + ": " + short_score; + } else { + for (var i = halfmove_num; i --> 0; ) { + if (data['score_history'][i]) { + var move = data['position']['pretty_history'][i]; + return "[Analysis kept from " + format_halfmove_with_number(move, i) + "]"; + } + } + } +} + /** * @param {boolean} sort_by_score */ @@ -1088,14 +1315,19 @@ var update_historic_analysis = function() { var filename = "/history/move" + (current_display_move + 1) + "-" + hiddenboard.fen().replace(/ /g, '_').replace(/\//g, '-') + ".json"; - $.ajax({ + current_historic_xhr = $.ajax({ url: filename }).done(function(data, textstatus, xhr) { displayed_analysis_data = data; update_board(current_analysis_data, displayed_analysis_data); - }).fail(function() { - displayed_analysis_data = {'failed': true}; - update_board(current_analysis_data, displayed_analysis_data); + }).fail(function(jqXHR, textStatus, errorThrown) { + if (textStatus === "abort") { + // Aborted because we are switching backends. Don't do anything; + // we will already have been cleared. + } else { + displayed_analysis_data = {'failed': true}; + update_board(current_analysis_data, displayed_analysis_data); + } }); } @@ -1194,6 +1426,38 @@ var set_sound = function(param_enable_sound) { } window['set_sound'] = set_sound; +/** + * @param {string} new_backend_url + */ +var switch_backend = function(new_backend_url) { + // Stop looking at historic data. + current_display_line = null; + current_display_move = null; + displayed_analysis_data = null; + if (current_historic_xhr) { + current_historic_xhr.abort(); + } + + // If we already have a backend response going, abort it. + if (current_analysis_xhr) { + current_analysis_xhr.abort(); + } + + // Otherwise, we should have a timer going to start a new one. + // Kill that, too. + if (current_analysis_request_timer) { + clearTimeout(current_analysis_request_timer); + current_analysis_request_timer = null; + } + + // Request an immediate fetch with the new backend. + backend_url = new_backend_url; + current_analysis_data = null; + ims = 0; + request_update(); +} +window['switch_backend'] = switch_backend; + var init = function() { unique = get_unique(); @@ -1215,6 +1479,7 @@ var init = function() { request_update(); $(window).resize(function() { board.resize(); + update_sparkline(displayed_analysis_data || current_analysis_data); update_highlight(); redraw_arrows(); });