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go-otel/static/otel-todo.js
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update
2026-09-21 19:38:09 +02:00

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7.7 KiB
JavaScript

/**
* otel-todo.js - file todos / issues straight from the page.
*
* Shows a small floating symbol and listens for a keyboard shortcut. Either
* opens a native <dialog> in the bottom-right corner with a text box and an
* optional component picker, and POSTs the note (with the current path and
* hash) to the collector's /v1/todos endpoint.
*
* <script src="https://otel.example.com/static/otel-todo.js"
* data-service-name="checkout-web"
* data-ingest-key="..."
* data-components="Header,Cart,Payment"></script>
*
* Attributes (or OtelTodo.init({...}) keys): data-base-url, data-service-name
* (the project), data-ingest-key, data-components (comma list, also
* discovered from [data-component] elements on the page), data-shortcut
* (default "alt+shift+t"), data-todo-endpoint, data-hide-button="true".
*/
(function (global) {
'use strict';
var DEFAULT_BASE_URL = 'https://otel.k6n.net';
var scriptEl = document.currentScript;
function attr(name) {
return (scriptEl && scriptEl.getAttribute(name)) || '';
}
function parseShortcut(s) {
var parts = String(s).toLowerCase().split('+');
var sc = { key: parts.pop(), alt: false, shift: false, ctrl: false, meta: false };
parts.forEach(function (p) {
if (p === 'alt' || p === 'option') sc.alt = true;
else if (p === 'shift') sc.shift = true;
else if (p === 'ctrl' || p === 'control') sc.ctrl = true;
else if (p === 'meta' || p === 'cmd') sc.meta = true;
});
return sc;
}
function init(config) {
config = config || {};
if (global.OtelTodo && global.OtelTodo.instance) return global.OtelTodo.instance;
var baseUrl = (config.baseUrl || attr('data-base-url') || DEFAULT_BASE_URL).replace(/\/+$/, '');
var endpoint = config.endpoint || attr('data-todo-endpoint') || baseUrl + '/v1/todos';
var project = config.serviceName || attr('data-service-name') || attr('data-service') || 'frontend';
var ingestKey = config.ingestKey || attr('data-ingest-key');
var shortcut = parseShortcut(config.shortcut || attr('data-shortcut') || 'alt+shift+t');
var hideButton = config.hideButton || attr('data-hide-button') === 'true';
var staticComponents = config.components || attr('data-components').split(',');
staticComponents = staticComponents.map(function (c) { return c.trim(); }).filter(Boolean);
var sessionId = '';
try { sessionId = global.sessionStorage.getItem('otel-rum-session') || ''; } catch (e) {}
var css = document.createElement('style');
css.textContent =
'.otel-todo-btn{position:fixed;right:16px;bottom:16px;z-index:2147483646;width:32px;height:32px;border-radius:50%;' +
'border:1px solid #8886;background:#fffd;color:#333;font:16px/1 system-ui,sans-serif;cursor:pointer;opacity:.55;padding:0}' +
'.otel-todo-btn:hover,.otel-todo-btn:focus-visible{opacity:1}' +
'dialog.otel-todo{position:fixed;inset:auto 16px 60px auto;margin:0;width:min(340px,calc(100vw - 32px));padding:12px;' +
'border:1px solid #8886;border-radius:8px;background:Canvas;color:CanvasText;font:13px system-ui,sans-serif}' +
'dialog.otel-todo *{box-sizing:border-box;font:inherit}' +
'dialog.otel-todo textarea,dialog.otel-todo select{display:block;width:100%;margin:6px 0;padding:6px}' +
'dialog.otel-todo textarea{min-height:90px;resize:vertical}' +
'dialog.otel-todo .row{display:flex;gap:8px;justify-content:flex-end;align-items:center}' +
'dialog.otel-todo .meta{opacity:.65;font-size:11px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}' +
'dialog.otel-todo .status{margin-right:auto;font-size:12px}';
document.head.appendChild(css);
var dlg = document.createElement('dialog');
dlg.className = 'otel-todo';
dlg.setAttribute('aria-label', 'Add todo');
dlg.innerHTML =
'<form method="dialog">' +
'<div class="meta"></div>' +
'<textarea name="text" placeholder="What needs doing?" required maxlength="4000"></textarea>' +
'<select name="component" aria-label="Component (optional)"></select>' +
'<div class="row"><span class="status" role="status"></span>' +
'<button type="button" data-cancel>Cancel</button><button type="submit">Add</button></div>' +
'</form>';
var form = dlg.firstChild;
var textEl = form.elements.text;
var selectEl = form.elements.component;
var statusEl = form.querySelector('.status');
var metaEl = form.querySelector('.meta');
document.body.appendChild(dlg);
function components() {
var seen = {};
var list = [];
staticComponents.concat([].map.call(document.querySelectorAll('[data-component]'), function (el) {
return el.getAttribute('data-component');
})).forEach(function (c) {
if (c && !seen[c]) { seen[c] = true; list.push(c); }
});
return list;
}
function open() {
if (dlg.open) { textEl.focus(); return; }
selectEl.innerHTML = '';
var none = document.createElement('option');
none.value = '';
none.textContent = 'No component';
selectEl.appendChild(none);
var list = components();
list.forEach(function (c) {
var o = document.createElement('option');
o.value = o.textContent = c;
selectEl.appendChild(o);
});
selectEl.hidden = list.length === 0;
metaEl.textContent = project + ' · ' + location.pathname + location.hash;
statusEl.textContent = '';
// Non-modal so the page stays usable while the note is being written.
dlg.show();
textEl.focus();
}
function close() { if (dlg.open) dlg.close(); }
form.querySelector('[data-cancel]').addEventListener('click', close);
dlg.addEventListener('keydown', function (e) {
if (e.key === 'Escape') { e.preventDefault(); close(); }
else if (e.key === 'Enter' && (e.ctrlKey || e.metaKey)) { e.preventDefault(); form.requestSubmit(); }
});
form.addEventListener('submit', function (e) {
e.preventDefault();
var text = textEl.value.trim();
if (!text) return;
var headers = { 'Content-Type': 'application/json' };
var url = endpoint;
if (ingestKey) headers['X-Otel-Ingest-Key'] = ingestKey;
statusEl.textContent = 'Sending…';
global.fetch(url, {
method: 'POST',
mode: 'cors',
headers: headers,
body: JSON.stringify({
project: project,
text: text,
component: selectEl.value,
path: location.pathname,
hash: location.hash,
url: location.href,
ua: navigator.userAgent,
session: sessionId
})
}).then(function (res) {
if (!res.ok) throw new Error('HTTP ' + res.status);
textEl.value = '';
close();
}).catch(function (err) {
statusEl.textContent = 'Failed: ' + err.message;
});
});
global.addEventListener('keydown', function (e) {
var k = e.key.toLowerCase();
var code = (e.code || '').replace(/^(Key|Digit)/, '').toLowerCase();
if ((k === shortcut.key || code === shortcut.key) && e.altKey === shortcut.alt && e.shiftKey === shortcut.shift &&
e.ctrlKey === shortcut.ctrl && e.metaKey === shortcut.meta) {
e.preventDefault();
dlg.open ? close() : open();
}
});
if (!hideButton) {
var btn = document.createElement('button');
btn.type = 'button';
btn.className = 'otel-todo-btn';
btn.textContent = '✎';
btn.title = 'Add todo (' + (config.shortcut || attr('data-shortcut') || 'alt+shift+t') + ')';
btn.setAttribute('aria-label', 'Add todo');
btn.addEventListener('click', function () { dlg.open ? close() : open(); });
document.body.appendChild(btn);
}
var instance = { open: open, close: close };
global.OtelTodo.instance = instance;
return instance;
}
global.OtelTodo = { init: init, instance: undefined };
if (scriptEl && (attr('data-auto-init') === 'true' || attr('data-service-name') || attr('data-service'))) {
if (document.readyState === 'loading') document.addEventListener('DOMContentLoaded', function () { init(); });
else init();
}
})(window);