122 lines
3.8 KiB
HTML
122 lines
3.8 KiB
HTML
<!DOCTYPE html>
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<html>
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<head>
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<meta charset="utf-8">
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<title>Virtual Metro</title>
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<style type="text/css">
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#mainsvg {
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width: 100vw;
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height: 100vh;
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max-width: 100vw;
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max-height: 100vh;
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}
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#topbar {
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position: absolute;
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left: 0;
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top: 0;
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z-index: 999;
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font-size: small;
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}
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body, html {
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color: #ccc;
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background-color: black;
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margin: 0;
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padding: 0;
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overflow: hidden;
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}
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a, a:active, a:visited {
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color: #99f;
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}
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</style>
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</head>
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<body>
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<div id="topbar">Stop <span id="stopinfo">?</span> [<a href="stations">change</a>] Platform <span id="platinfo">?</span> [<a href="#" onclick="return changePlatform();">change</a>] Style <span id="styleinfo">?</span> [change: <a href="#" onclick="return changeStyle(1);">1</a>, <a href="#" onclick="return changeStyle(2);">2</a>]</div>
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<script src="https://cdnjs.cloudflare.com/ajax/libs/nunjucks/3.0.1/nunjucks.min.js"></script>
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<script>
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function getQueryVariable(variable, def) {
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var vars = window.location.search.substring(1).split("&");
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for (var i = 0; i < vars.length; i++) {
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var bits = vars[i].split("=");
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if (decodeURIComponent(bits[0]) == variable) {
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return decodeURIComponent(bits[1]);
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}
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}
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return def;
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}
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var stop_id = parseInt(getQueryVariable("stop_id", 1099));
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var plat_id = parseInt(getQueryVariable("plat_id", 1));
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var template_id = parseInt(getQueryVariable("template_id", 1));
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document.getElementById("stopinfo").innerText = stop_id;
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document.getElementById("platinfo").innerText = plat_id;
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document.getElementById("styleinfo").innerText = template_id;
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var svg = null;
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var svg_time = null;
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var template = null;
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var time_offset = null;
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function start() {
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svg = document.getElementById("mainsvg").getSVGDocument().querySelector("svg");
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template = svg.innerHTML;
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svg.innerHTML = nunjucks.renderString(template, {"dest": "Loading..."});
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tickTrains();
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window.setInterval(tickTrains, 30000);
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}
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function tickTrains() {
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var xhr = new XMLHttpRequest();
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xhr.addEventListener("load", function() {
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var result = JSON.parse(xhr.responseText);
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svg.innerHTML = nunjucks.renderString(template, result);
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svg_time = document.getElementById("mainsvg").getSVGDocument().querySelector("#time tspan");
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document.getElementById("stopinfo").innerText = stop_id + " (" + result.stop_name + ")";
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if (time_offset === null) {
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time_offset = result.time_offset;
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window.setInterval(tickTime, 1000);
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}
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tickTime();
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});
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xhr.open("GET", "latest?stop_id=" + stop_id + "&plat_id=" + plat_id);
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xhr.send();
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}
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function tickTime() {
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var time = new Date(new Date().getTime() + time_offset * 1000);
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var hour = time.getUTCHours() % 12;
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if (hour === 0) hour = 12;
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var minute = time.getUTCMinutes();
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if (minute < 10) minute = "0" + minute;
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var second = time.getUTCSeconds();
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if (second < 10) second = "0" + second;
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svg_time.innerHTML = hour + ":" + minute + ":" + second;
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}
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function changePlatform() {
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var new_plat = parseInt(window.prompt("Enter new platform number:", plat_id));
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window.location = "?stop_id=" + stop_id + "&plat_id=" + new_plat + "&template_id=" + template_id;
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return false;
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}
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function changeStyle(new_style) {
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window.location = "?stop_id=" + stop_id + "&plat_id=" + plat_id + "&template_id=" + new_style;
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return false;
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}
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// Create SVG
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var svg_object = document.createElement("object");
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svg_object.setAttribute("id", "mainsvg");
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svg_object.setAttribute("data", "static/template" + template_id + ".svg");
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svg_object.setAttribute("type", "image/svg+xml");
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svg_object.setAttribute("onload", "start();");
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document.querySelector("body").appendChild(svg_object);
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</script>
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</body>
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</html>
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