var highlight_to = undefined;
/** The HTML object of the move currently being highlighted (in red).
- * @type {?jQuery}
+ * @type {?Element}
* @private */
var highlighted_move = null;
/** @type {boolean} @private */
var enable_sound = false;
+/** @type {!number} @private */
+var delay_ms = 0;
+
/**
* Our best estimate of how many milliseconds we need to add to
* new Date() to get the true UTC time. Calibrated against the
* The current backend request to get main analysis (not history), if any,
* so that we can abort it.
*
- * @type {?jqXHR}
+ * @type {?AbortController}
* @private
*/
var current_analysis_xhr = null;
/**
* The current backend request to get historic data, if any.
*
- * @type {?jqXHR}
+ * @type {?AbortController}
* @private
*/
var current_historic_xhr = null;
/**
* The current backend request to get hash probes, if any, so that we can abort it.
*
- * @type {?jqXHR}
+ * @type {?AbortController}
* @private
*/
var current_hash_xhr = null;
var request_update = function() {
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');
- var new_data;
- if (Array.isArray(data)) {
- new_data = JSON.parse(JSON.stringify(current_analysis_data));
- JSON_delta.patch(new_data, data);
- } else {
- new_data = data;
- }
+ let handle_err = () => {
+ // Backend error or similar. Wait ten seconds, then try again.
+ current_analysis_request_timer = setTimeout(function() { request_update(); }, 10000);
+ };
- 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);
- }
+ current_analysis_xhr = new AbortController();
+ const signal = current_analysis_xhr.signal;
+ fetch(backend_url + "?ims=" + ims + "&unique=" + unique, { signal })
+ .then((response) => response.json().then(data => ({ok: response.ok, headers: response.headers, json: data}))) // ick
+ .then((obj) => {
+ if (!obj.ok) {
+ handle_err();
+ return;
+ }
- // Verify that the PV makes sense.
- var valid = true;
- if (new_data['pv']) {
- var hiddenboard = new Chess(new_data['position']['fen']);
- for (var i = 0; i < new_data['pv'].length; ++i) {
- if (hiddenboard.move(new_data['pv'][i]) === null) {
- valid = false;
- break;
- }
+ if (delay_ms === 0) {
+ process_update_response(obj.json, obj.headers);
+ } else {
+ setTimeout(function() { process_update_response(obj.json, obj.headers); }, delay_ms);
}
- }
- var timeout = 100;
- if (valid) {
- possibly_play_sound(current_analysis_data, new_data);
- current_analysis_data = new_data;
- update_board();
- update_num_viewers(num_viewers);
- } else {
- console.log("Received invalid update, waiting five seconds and trying again.");
- setTimeout(function() { location.reload(true); }, 5000);
- }
+ // Next update.
+ if (!backend_url.match(/history/)) {
+ var timeout = 100;
+ current_analysis_request_timer = setTimeout(function() { request_update(); }, timeout);
+ }
+ })
+ .catch((err) => {
+ if (err.name === 'AbortError') {
+ // Aborted because we are switching backends. Abandon and don't retry,
+ // because another one is already started for us.
+ } else {
+ console.log(err);
+ handle_err(err);
+ }
+ })
+ .finally(() => {
+ // Display.
+ document.body.style.opacity = null;
+ })
- // Next update.
- if (!backend_url.match(/history/)) {
- current_analysis_request_timer = setTimeout(function() { request_update(); }, timeout);
- }
- }).fail(function(jqXHR, textStatus, errorThrown) {
- document.body.style.opacity = null;
- 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);
+}
+
+var process_update_response = function(data, headers) {
+ sync_server_clock(headers.get('Date'));
+ ims = headers.get('X-RGLM');
+ var num_viewers = headers.get('X-RGNV');
+ var new_data;
+ if (Array.isArray(data)) {
+ new_data = JSON.parse(JSON.stringify(current_analysis_data));
+ JSON_delta.patch(new_data, data);
+ } else {
+ new_data = data;
+ }
+
+ var minimum_version = headers.get('X-RGMV');
+ if (minimum_version && minimum_version > SCRIPT_VERSION) {
+ // Upgrade to latest version with a force-reload.
+ location.reload(true);
+ }
+
+ // Verify that the PV makes sense.
+ var valid = true;
+ if (new_data['pv']) {
+ var hiddenboard = new Chess(new_data['position']['fen']);
+ for (var i = 0; i < new_data['pv'].length; ++i) {
+ if (hiddenboard.move(new_data['pv'][i]) === null) {
+ valid = false;
+ break;
+ }
}
- });
+ }
+
+ if (valid) {
+ possibly_play_sound(current_analysis_data, new_data);
+ current_analysis_data = new_data;
+ update_board();
+ update_num_viewers(num_viewers);
+ } else {
+ console.log("Received invalid update, waiting five seconds and trying again.");
+ setTimeout(function() { location.reload(true); }, 5000);
+ }
}
var possibly_play_sound = function(old_data, new_data) {
return;
}
- var zoom_factor = $("#board").width() / 400.0;
+ var zoom_factor = document.getElementById("board").getBoundingClientRect().width / 400.0;
var line_width = arrow.line_width * zoom_factor;
var arrow_size = arrow.arrow_size * zoom_factor;
- var square_width = $(".square-a8").width();
- var pos, from_y, to_y, from_x, to_x;
+ var square_width = document.querySelector(".square-a8").getBoundingClientRect().width;
+ var from_y, to_y, from_x, to_x;
if (board.orientation() === 'black') {
- pos = $(".square-h1").position();
from_y = (arrow.from_row + 0.5)*square_width;
to_y = (arrow.to_row + 0.5)*square_width;
from_x = (7 - arrow.from_col + 0.5)*square_width;
to_x = (7 - arrow.to_col + 0.5)*square_width;
} else {
- pos = $(".square-a8").position();
from_y = (7 - arrow.from_row + 0.5)*square_width;
to_y = (7 - arrow.to_row + 0.5)*square_width;
from_x = (arrow.from_col + 0.5)*square_width;
var SVG_NS = "http://www.w3.org/2000/svg";
var XHTML_NS = "http://www.w3.org/1999/xhtml";
var svg = document.createElementNS(SVG_NS, "svg");
- svg.setAttribute("width", /** @type{number} */ ($("#board").width()));
- svg.setAttribute("height", /** @type{number} */ ($("#board").height()));
+ svg.setAttribute("width", /** @type{number} */ (document.getElementById("board").getBoundingClientRect().width));
+ svg.setAttribute("height", /** @type{number} */ (document.getElementById("board").getBoundingClientRect().height));
svg.setAttribute("style", "position: absolute");
svg.setAttribute("position", "absolute");
svg.setAttribute("version", "1.1");
head.setAttribute("fill", arrow.fg_color);
svg.appendChild(head);
- $(svg).css({ top: pos.top, left: pos.left, 'pointer-events': 'none' });
- document.body.appendChild(svg);
+ svg.style.top = '2px'; /* Border for .board-b72b1. */
+ svg.style.left = '2px';
+ svg.style.pointerEvents = 'none';
+ document.getElementById('board').appendChild(svg);
arrow.svg = svg;
}
* Based on the global "highlight_from" and "highlight_to" variables.
*/
var update_board_highlight = function() {
- $("#board").find('.square-55d63').removeClass('nonuglyhighlight');
+ document.getElementById("board").querySelector('.square-55d63').classList.remove('nonuglyhighlight');
if ((current_display_line === null || current_display_line_is_history) &&
highlight_from !== undefined && highlight_to !== undefined) {
- $("#board").find('.square-' + highlight_from).addClass('nonuglyhighlight');
- $("#board").find('.square-' + highlight_to).addClass('nonuglyhighlight');
+ document.getElementById("board").querySelector('.square-' + highlight_from).classList.add('nonuglyhighlight');
+ document.getElementById("board").querySelector('.square-' + highlight_to).classList.add('nonuglyhighlight');
}
}
var update_history = function() {
if (display_lines[0] === null || display_lines[0].pv.length == 0) {
- $("#history").html("No history");
+ document.getElementById("history").innerHTML = "No history";
} else if (truncate_display_history) {
- $("#history").html(print_pv(0, null, 8, true));
+ document.getElementById("history").innerHTML = print_pv(0, null, 8, true);
} else {
- $("#history").html(
+ document.getElementById("history").innerHTML =
'(<a class="move" href="javascript:collapse_history(true)">collapse</a>) ' +
- print_pv(0, null));
+ print_pv(0, null);
}
}
// Truncate so that only the history and PV is left.
display_lines = [ display_lines[0], display_lines[1] ];
}
- var tbl = $("#refutationlines");
- tbl.empty();
+ var tbl = document.getElementById("refutationlines");
+ tbl.replaceChildren();
if (display_lines.length < 2) {
return;
var move_td = document.createElement("td");
tr.appendChild(move_td);
- $(move_td).addClass("move");
+ move_td.classList.add("move");
var scores = base_scores.concat([{ first_move: start_display_move_num, score: line['score'] }]);
if (line['pv'].length == 0) {
// Not found, so just make a one-move PV.
var move = "<a class=\"move\" href=\"javascript:show_line(" + display_lines.length + ", " + 0 + ");\">" + line['move'] + "</a>";
- $(move_td).html(move);
+ move_td.innerHTML = move;
var score_td = document.createElement("td");
- $(score_td).addClass("score");
- $(score_td).text("—");
+ score_td.classList.add("score");
+ score_td.textContent = "—";
tr.appendChild(score_td);
var depth_td = document.createElement("td");
tr.appendChild(depth_td);
- $(depth_td).addClass("depth");
- $(depth_td).text("—");
+ depth_td.classList.add("depth");
+ depth_td.textContent = "—";
var pv_td = document.createElement("td");
tr.appendChild(pv_td);
- $(pv_td).addClass("pv");
- $(pv_td).html(add_pv(base_fen, base_line.concat([ line['move'] ]), move_num, toplay, scores, start_display_move_num));
+ pv_td.classList.add("pv");
+ pv_td.innerHTML = add_pv(base_fen, base_line.concat([ line['move'] ]), move_num, toplay, scores, start_display_move_num);
tbl.append(tr);
continue;
}
var move = "<a class=\"move\" href=\"javascript:show_line(" + display_lines.length + ", " + 0 + ");\">" + line['move'] + "</a>";
- $(move_td).html(move);
+ move_td.innerHTML = move;
var score_td = document.createElement("td");
tr.appendChild(score_td);
- $(score_td).addClass("score");
- $(score_td).text(format_short_score(line['score']));
+ score_td.classList.add("score");
+ score_td.textContent = format_short_score(line['score']);
var depth_td = document.createElement("td");
tr.appendChild(depth_td);
- $(depth_td).addClass("depth");
+ depth_td.classList.add("depth");
if (line['depth'] && line['depth'] >= 0) {
- $(depth_td).text("d" + line['depth']);
+ depth_td.textContent = "d" + line['depth'];
} else {
- $(depth_td).text("—");
+ depth_td.textContent = "—";
}
var pv_td = document.createElement("td");
tr.appendChild(pv_td);
- $(pv_td).addClass("pv");
- $(pv_td).html(add_pv(base_fen, base_line.concat(line['pv']), move_num, toplay, scores, start_display_move_num, 10));
+ pv_td.classList.add("pv");
+ pv_td.innerHTML = add_pv(base_fen, base_line.concat(line['pv']), move_num, toplay, scores, start_display_move_num, 10);
tbl.append(tr);
}
}
var update_game_list = function(games) {
- $("#games").text("");
+ document.getElementById("games").textContent = "";
if (games === null) {
return;
}
// 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();
+ document.getElementById("lomonosov").style.display = null;
} else {
- $("#lomonosov").hide();
+ document.getElementById("lomonosov").style.display = 'none';
}
// Credits: The engine name/version.
if (current_data['engine'] && current_data['engine']['name'] !== null) {
- $("#engineid").text(current_data['engine']['name']);
+ document.getElementById("engineid").textContent = current_data['engine']['name'];
}
// Credits: The engine URL.
if (current_data['engine'] && current_data['engine']['url']) {
- $("#engineid").attr("href", current_data['engine']['url']);
+ document.getElementById("engineid").setAttribute("href", current_data['engine']['url']);
} else {
- $("#engineid").removeAttr("href");
+ document.getElementById("engineid").removeAttribute("href");
}
// Credits: Engine details.
if (current_data['engine'] && current_data['engine']['details']) {
- $("#enginedetails").text(" (" + current_data['engine']['details'] + ")");
+ document.getElementById("enginedetails").textContent = " (" + current_data['engine']['details'] + ")";
} else {
- $("#enginedetails").text("");
+ document.getElementById("enginedetails").textContent = "";
}
// Credits: Move source, possibly with URL.
if (current_data['move_source'] && current_data['move_source_url']) {
- $("#movesource").text("Moves provided by ");
+ document.getElementById("movesource").textContent = "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']);
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'] + ".");
+ document.getElementById("movesource").textContent = "Moves provided by " + current_data['move_source'] + ".";
} else {
- $("#movesource").text("");
+ document.getElementById("movesource").textContent = "";
}
var last_move;
} else {
last_move = null;
}
- $("#headline").text(headline);
+ document.getElementById("headline").textContent = headline;
// The <title> contains a very brief headline.
var title_elems = [];
update_board_highlight();
if (data['failed']) {
- $("#score").text("No analysis for this move");
- $("#pvtitle").text("PV:");
- $("#pv").empty();
- $("#searchstats").html(" ");
- $("#refutationlines").empty();
- $("#whiteclock").empty();
- $("#blackclock").empty();
+ document.getElementById("score").textContent = "No analysis for this move";
+ document.getElementById("pvtitle").textContent = "PV:";
+ document.getElementById("pv").replaceChildren();
+ document.getElementById("searchstats").innerHTML = " ";
+ document.getElementById("refutationlines").replaceChildren();
+ document.getElementById("whiteclock").replaceChildren();
+ document.getElementById("blackclock").replaceChildren();
refutation_lines = [];
update_refutation_lines();
clear_arrows();
}
}
if (score) {
- $("#score").text(format_long_score(score));
+ document.getElementById("score").textContent = format_long_score(score);
} else {
- $("#score").text("No score for this line");
+ document.getElementById("score").textContent = "No score for this line";
}
} else if (data['score']) {
- $("#score").text(format_long_score(data['score']));
+ document.getElementById("score").textContent = format_long_score(data['score']);
}
// The search stats.
if (data['searchstats']) {
- $("#searchstats").html(data['searchstats']);
+ document.getElementById("searchstats").innerHTML = data['searchstats'];
} else if (data['tablebase'] == 1) {
- $("#searchstats").text("Tablebase result");
+ document.getElementById("searchstats").textContent = "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']) {
}
}
- $("#searchstats").text(stats);
+ document.getElementById("searchstats").textContent = stats;
} else {
- $("#searchstats").text("");
+ document.getElementById("searchstats").textContent = "";
}
// Update the board itself.
update_displayed_line();
// Print the PV.
- $("#pvtitle").text("PV:");
+ document.getElementById("pvtitle").textContent = "PV:";
var scores = [{ first_move: -1, score: data['score'] }];
- $("#pv").html(add_pv(data['position']['fen'], data['pv'], data['position']['move_num'], data['position']['toplay'], scores, 0));
+ document.getElementById("pv").innerHTML = add_pv(data['position']['fen'], data['pv'], data['position']['move_num'], data['position']['toplay'], scores, 0);
// Update the PV arrow.
clear_arrows();
// #scoresparkcontainer) on Chrome for mobile seems to start off
// at something very small, and then suddenly snap back into place.
// Figure out why.
- var max_moves = Math.floor($("#scoresparkcontainer").width() / 5) - 5;
+ var max_moves = Math.floor(document.getElementById("scoresparkcontainer").getBoundingClientRect().width / 5) - 5;
if (last_move_num - first_move_num > max_moves) {
first_move_num = last_move_num - max_moves;
}
// FIXME: at some widths, calling sparkline() seems to push
// #scorecontainer under the board.
$('#scorespark').unbind('sparklineClick');
- $("#scorespark").sparkline(scores, {
+ $('#scorespark').sparkline(scores, {
type: 'bar',
zeroColor: 'gray',
chartRangeMin: min_score,
}
});
} else {
- $("#scorespark").text("");
+ document.getElementById("scorespark").textContent = "";
}
} else {
- $("#scorespark").text("");
+ document.getElementById("scorespark").textContent = "";
}
}
text += " | 50-move rule: " + counter;
}
}
- $("#numviewers").text(text);
+ document.getElementById("numviewers").textContent = text;
}
var update_clock = function() {
if (data['position']) {
var result = data['position']['result'];
if (result === '1-0') {
- $("#whiteclock").text("1");
- $("#blackclock").text("0");
- $("#whiteclock").removeClass("running-clock");
- $("#blackclock").removeClass("running-clock");
+ document.getElementById("whiteclock").textContent = "1";
+ document.getElementById("blackclock").textContent = "0";
+ document.getElementById("whiteclock").classList.remove("running-clock");
+ document.getElementById("blackclock").classList.remove("running-clock");
return;
}
if (result === '1/2-1/2') {
- $("#whiteclock").text("1/2");
- $("#blackclock").text("1/2");
- $("#whiteclock").removeClass("running-clock");
- $("#blackclock").removeClass("running-clock");
+ document.getElementById("whiteclock").textContent = "1/2";
+ document.getElementById("blackclock").textContent = "1/2";
+ document.getElementById("whiteclock").classList.remove("running-clock");
+ document.getElementById("blackclock").classList.remove("running-clock");
return;
}
if (result === '0-1') {
- $("#whiteclock").text("0");
- $("#blackclock").text("1");
- $("#whiteclock").removeClass("running-clock");
- $("#blackclock").removeClass("running-clock");
+ document.getElementById("whiteclock").textContent = "0";
+ document.getElementById("blackclock").textContent = "1";
+ document.getElementById("whiteclock").classList.remove("running-clock");
+ document.getElementById("blackclock").classList.remove("running-clock");
return;
}
}
var color;
if (data['position']['white_clock_target']) {
color = "white";
- $("#whiteclock").addClass("running-clock");
- $("#blackclock").removeClass("running-clock");
+ document.getElementById("whiteclock").classList.add("running-clock");
+ document.getElementById("blackclock").classList.remove("running-clock");
} else if (data['position']['black_clock_target']) {
color = "black";
- $("#whiteclock").removeClass("running-clock");
- $("#blackclock").addClass("running-clock");
+ document.getElementById("whiteclock").classList.remove("running-clock");
+ document.getElementById("blackclock").classList.add("running-clock");
} else {
- $("#whiteclock").removeClass("running-clock");
- $("#blackclock").removeClass("running-clock");
+ document.getElementById("whiteclock").classList.remove("running-clock");
+ document.getElementById("blackclock").classList.remove("running-clock");
}
var remaining_ms;
if (color) {
}
if (white_clock_ms === null || black_clock_ms === null) {
- $("#whiteclock").empty();
- $("#blackclock").empty();
+ document.getElementById("whiteclock").replaceChildren();
+ document.getElementById("blackclock").replaceChildren();
return;
}
clock_timer = setTimeout(update_clock, next_update_ms);
}
- $("#whiteclock").text(format_clock(white_clock_ms, show_seconds));
- $("#blackclock").text(format_clock(black_clock_ms, show_seconds));
+ document.getElementById("whiteclock").textContent = format_clock(white_clock_ms, show_seconds);
+ document.getElementById("blackclock").textContent = format_clock(black_clock_ms, show_seconds);
}
/**
update_board();
return;
} else {
- current_display_line = jQuery.extend({}, display_lines[line_num]); // Shallow clone.
+ current_display_line = {...display_lines[line_num]}; // Shallow clone.
current_display_move = move_num + current_display_line.start_display_move_num;
}
current_display_line_is_history = (line_num == 0);
var filename = "/history/move" + (current_display_move + 1) + "-" +
hiddenboard.fen().replace(/ /g, '_').replace(/\//g, '-') + ".json";
- current_historic_xhr = $.ajax({
- url: filename
- }).done(function(data, textstatus, xhr) {
- displayed_analysis_data = data;
+ let handle_err = () => {
+ displayed_analysis_data = {'failed': true};
update_board();
- }).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};
+ };
+
+ current_historic_xhr = new AbortController();
+ const signal = current_analysis_xhr.signal;
+ fetch(filename, { signal })
+ .then((response) => response.json().then(data => ({ok: response.ok, json: data}))) // ick
+ .then((obj) => {
+ if (!obj.ok) {
+ handle_err();
+ return;
+ }
+ displayed_analysis_data = obj.json;
update_board();
- }
- });
+ })
+ .catch((err) => {
+ if (err.name === 'AbortError') {
+ // Aborted because we are switching backends. Abandon and don't retry,
+ // because another one is already started for us.
+ } else {
+ console.log(err);
+ handle_err();
+ }
+ });
}
/**
black_imbalance += '<img src="' + svg_pieces['w' + piece.toUpperCase()] + '" alt="" style="width: 15px;height: 15px;" class="imbalance-inverted-piece">';
}
}
- $('#whiteimbalance').html(white_imbalance);
- $('#blackimbalance').html(black_imbalance);
+ document.getElementById('whiteimbalance').innerHTML = white_imbalance;
+ document.getElementById('blackimbalance').innerHTML = black_imbalance;
}
/** Mark the currently selected move in red.
*/
var update_move_highlight = function() {
if (highlighted_move !== null) {
- highlighted_move.removeClass('highlight');
+ highlighted_move.classList.remove('highlight');
}
if (current_display_line) {
var display_line_num = find_display_line_matching_num();
if (display_line_num === null) {
// Replace the PV with the (complete) line.
- $("#pvtitle").text("Exploring:");
+ document.getElementById("pvtitle").textContent = "Exploring:";
current_display_line.start_display_move_num = 0;
display_lines.push(current_display_line);
- $("#pv").html(print_pv(display_lines.length - 1, null)); // FIXME
+ document.getElementById("pv").innerHTML = print_pv(display_lines.length - 1, null); // FIXME
display_line_num = display_lines.length - 1;
// Clear out the PV, so it's not selected by anything later.
display_lines[1].pv = [];
}
- highlighted_move = $("#automove" + display_line_num + "-" + (current_display_move - current_display_line.start_display_move_num));
- highlighted_move.addClass('highlight');
+ highlighted_move = document.getElementById("automove" + display_line_num + "-" + (current_display_move - current_display_line.start_display_move_num));
+ if (highlighted_move !== null) {
+ highlighted_move.classList.add('highlight');
+ }
}
}
*/
var update_displayed_line = function() {
if (current_display_line === null) {
- $("#linenav").hide();
- $("#linemsg").show();
+ document.getElementById("linenav").style.display = 'none';
+ document.getElementById("linemsg").style.display = 'revert';
display_fen = base_fen;
set_board_position(base_fen);
update_imbalance(base_fen);
return;
}
- $("#linenav").show();
- $("#linemsg").hide();
+ document.getElementById("linenav").style.display = 'revert';
+ document.getElementById("linemsg").style.display = 'none';
if (current_display_move <= 0) {
- $("#prevmove").html("Previous");
+ document.getElementById("prevmove").innerHTML = "Previous";
} else {
- $("#prevmove").html("<a href=\"javascript:prev_move();\">Previous</a></span>");
+ document.getElementById("prevmove").innerHTML = "<a href=\"javascript:prev_move();\">Previous</a></span>";
}
if (current_display_move == current_display_line.pv.length - 1) {
- $("#nextmove").html("Next");
+ document.getElementById("nextmove").innerHTML = "Next";
} else {
- $("#nextmove").html("<a href=\"javascript:next_move();\">Next</a></span>");
+ document.getElementById("nextmove").innerHTML = "<a href=\"javascript:next_move();\">Next</a></span>";
}
var hiddenboard = chess_from(current_display_line.start_fen, current_display_line.pv, current_display_move);
var set_sound = function(param_enable_sound) {
enable_sound = param_enable_sound;
if (enable_sound) {
- $("#soundon").html("<strong>On</strong>");
- $("#soundoff").html("<a href=\"javascript:set_sound(false)\">Off</a>");
+ document.getElementById("soundon").innerHTML = "<strong>On</strong>";
+ document.getElementById("soundoff").innerHTML = "<a href=\"javascript:set_sound(false)\">Off</a>";
// Seemingly at least Firefox prefers MP3 over Opus; tell it otherwise,
// and also preload the file since the user has selected audio.
ding.load();
}
} else {
- $("#soundon").html("<a href=\"javascript:set_sound(true)\">On</a>");
- $("#soundoff").html("<strong>Off</strong>");
+ document.getElementById("soundon").innerHTML = "<a href=\"javascript:set_sound(true)\">On</a>";
+ document.getElementById("soundoff").innerHTML = "<strong>Off</strong>";
}
if (supports_html5_storage()) {
localStorage['enable_sound'] = enable_sound ? 1 : 0;
clearTimeout(current_hash_display_timer);
current_hash_display_timer = null;
}
- $("#refutationlines").empty();
- current_hash_xhr = $.ajax({
- url: backend_hash_url + "?fen=" + fen
- }).done(function(data, textstatus, xhr) {
- show_explore_hash_results(data, fen);
- });
+ document.getElementById("refutationlines").replaceChildren();
+
+ current_hash_xhr = new AbortController();
+ const signal = current_analysis_xhr.signal;
+ fetch(backend_hash_url + "?fen=" + fen, { signal })
+ .then((response) => response.json())
+ .then((data) => { show_explore_hash_results(data, fen); });
}
/** Process the JSON response from a hash probe request.
recommended_move = get_best_move(pseudogame, source, null, pseudogame.turn() === 'b');
if (recommended_move) {
- var squareEl = $('#board .square-' + recommended_move.to);
- squareEl.addClass('highlight1-32417');
+ var squareEl = document.querySelector('#board .square-' + recommended_move.to);
+ squareEl.classList.add('highlight1-32417');
}
return true;
}
var mousedownSquare = function(e) {
+ if (!e.target || !e.target.matches('.square-55d63')) {
+ return;
+ }
+
reverse_dragging_from = null;
- var square = $(this).attr('data-square');
+ var square = e.target.getAttribute('data-square');
var pseudogame = new Chess(display_fen);
if (pseudogame.game_over() === true) {
reverse_dragging_from = square;
recommended_move = get_best_move(pseudogame, null, square, pseudogame.turn() === 'b');
if (recommended_move) {
- var squareEl = $('#board .square-' + recommended_move.from);
- squareEl.addClass('highlight1-32417');
- squareEl = $('#board .square-' + recommended_move.to);
- squareEl.addClass('highlight1-32417');
+ var squareEl = document.querySelector('#board .square-' + recommended_move.from);
+ squareEl.classList.add('highlight1-32417');
+ squareEl = document.querySelector('#board .square-' + recommended_move.to);
+ squareEl.classList.add('highlight1-32417');
}
}
}
var mouseupSquare = function(e) {
+ if (!e.target || !e.target.matches('.square-55d63')) {
+ return;
+ }
if (reverse_dragging_from === null) {
return;
}
- var source = $(this).attr('data-square');
+ var source = e.target.getAttribute('data-square');
var target = reverse_dragging_from;
reverse_dragging_from = null;
if (onDrop(source, target) !== 'snapback') {
onSnapEnd(source, target);
}
- $("#board").find('.square-55d63').removeClass('highlight1-32417');
+ document.getElementById("board").querySelectorAll('.square-55d63.highlight1-32417').forEach((square) => {
+ square.classList.remove('highlight1-32417');
+ });
}
var get_best_move = function(game, source, target, invert) {
window['switch_backend'] = switch_backend;
window['flip'] = function() { board.flip(); redraw_arrows(); };
+window['set_delay_ms'] = function(ms) { delay_ms = ms; console.log('Delay is now ' + ms + ' ms.'); };
// Mostly from Wikipedia's chess set as of October 2022, but some pieces are from
// the 2013 version, as I like those better (and it matches the 2014 PNGs; nobody
onDrop: onDrop,
onSnapEnd: onSnapEnd
});
- $("#board").on('mousedown', '.square-55d63', mousedownSquare);
- $("#board").on('mouseup', '.square-55d63', mouseupSquare);
+ document.getElementById("board").addEventListener('mousedown', mousedownSquare);
+ document.getElementById("board").addEventListener('mouseup', mouseupSquare);
request_update();
- $(window).resize(function() {
+ window.addEventListener('resize', function() {
board.resize();
update_sparkline(displayed_analysis_data || current_analysis_data);
update_board_highlight();
redraw_arrows();
});
- $(window).keyup(function(event) {
+ window.addEventListener('keyup', function(event) {
if (event.which == 39) { // Left arrow.
next_move();
} else if (event.which == 37) { // Right arrow.
window.addEventListener('hashchange', possibly_switch_game_from_hash, false);
possibly_switch_game_from_hash();
};
-$(document).ready(init);
+document.addEventListener('DOMContentLoaded', init);
})();