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embed.html
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<!DOCTYPE html>
<html style="height: 100%; width: 100%">
<head>
<meta charset="utf-8" />
<meta http-equiv="X-UA-Compatible" content="IE=edge" />
<meta name="viewport" content="width=device-width,initial-scale=1.0" />
<meta name="application-name" content="ZenUML" />
<meta name="apple-mobile-web-app-title" content="ZenUML" />
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>ZenUML</title>
<meta
name="Description"
content="ZenUML is a free online diagram application for generating sequence diagrams from text."
/>
<meta name="Keywords" content="diagram, online, sequence diagram, uml" />
</head>
<body style="height: 100%; width: 100%">
<noscript>
<strong
>We're sorry but ZenUML doesn't work properly without JavaScript enabled. Please enable it
to continue.</strong
>
</noscript>
<script>
(() => {
async function handle_message(ev) {
let { action, cmd_id } = ev.data;
const send_message = (payload) => parent.postMessage({ ...payload }, ev.origin);
const send_reply = (payload) => send_message({ ...payload, cmd_id });
const send_ok = () => send_reply({ action: 'cmd_ok' });
const send_error = (message, stack) =>
send_reply({ action: 'cmd_error', message, stack });
if (action === 'eval') {
try {
let { code, theme, style, css } = ev.data.args;
await zenUml.render(code, theme);
send_ok();
} catch (e) {
send_error(e.message, e.stack);
}
}
if (action === 'get_png') {
try {
let png = await zenUml.getPng();
send_reply({ action: 'cmd_png', png });
} catch (e) {
send_error(e.message, e.stack);
}
}
if (action === 'catch_clicks') {
try {
const top_origin = ev.origin;
document.body.addEventListener('click', (event) => {
if (event.which !== 1) return;
if (event.metaKey || event.ctrlKey || event.shiftKey) return;
if (event.defaultPrevented) return;
// ensure target is a link
let el = event.target;
while (el && el.nodeName !== 'A') el = el.parentNode;
if (!el || el.nodeName !== 'A') return;
if (
el.hasAttribute('download') ||
el.getAttribute('rel') === 'external' ||
el.target
)
return;
event.preventDefault();
if (el.href.startsWith(top_origin)) {
const url = new URL(el.href);
if (url.hash[0] === '#') {
window.location.hash = url.hash;
return;
}
}
window.open(el.href, '_blank');
});
send_ok();
} catch (e) {
send_error(e.message, e.stack);
}
}
}
window.addEventListener('message', handle_message, false);
window.onerror = function (msg, url, lineNo, columnNo, error) {
if (msg.includes('module specifier “vue”')) {
// firefox only error, ignore
return false;
}
try {
parent.postMessage({ action: 'error', value: error }, '*');
} catch (e) {
parent.postMessage({ action: 'error', value: msg }, '*');
}
};
window.addEventListener('unhandledrejection', (event) => {
if (event.reason.message.includes('Cross-origin')) {
event.preventDefault();
return;
}
try {
parent.postMessage({ action: 'unhandledrejection', value: event.reason }, '*');
} catch (e) {
parent.postMessage({ action: 'unhandledrejection', value: event.reason.message }, '*');
}
});
let previous = { level: null, args: null };
['clear', 'log', 'info', 'dir', 'warn', 'error', 'table'].forEach((level) => {
const original = console[level];
console[level] = (...args) => {
const msg = String(args[0]);
if (
msg.includes('You are running a development build of Vue') ||
msg.includes('You are running the esm-bundler build of Vue')
) {
return;
}
const stringifiedArgs = stringify(args);
if (previous.level === level && previous.args && previous.args === stringifiedArgs) {
parent !== window &&
parent.postMessage({ action: 'console', level, duplicate: true }, '*');
} else {
previous = { level, args: stringifiedArgs };
try {
parent !== window && parent.postMessage({ action: 'console', level, args }, '*');
} catch (err) {
parent !== window &&
parent.postMessage(
{
action: 'console',
level,
args: args.map((a) => {
return a instanceof Error ? a.message : String(a);
}),
},
'*'
);
}
}
original(...args);
};
});
[
{ method: 'group', action: 'console_group' },
{ method: 'groupEnd', action: 'console_group_end' },
{ method: 'groupCollapsed', action: 'console_group_collapsed' },
].forEach((group_action) => {
const original = console[group_action.method];
console[group_action.method] = (label) => {
parent.postMessage({ action: group_action.action, label }, '*');
console.log('group_action', group_action);
original(label);
};
});
const original_trace = console.trace;
console.trace = (...args) => {
const stack = new Error().stack;
parent.postMessage({ action: 'console', level: 'trace', args, stack }, '*');
original_trace(...args);
};
function stringify(args) {
try {
return JSON.stringify(args);
} catch (error) {
return null;
}
}
})();
</script>
<div id="diagram" class="diagram" style="text-align: center">
<pre class="zenuml"></pre>
</div>
<script type="module" src="src/main.ts"></script>
</body>
</html>