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show plugin errors

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This commit is contained in:
ed 2020-11-27 21:10:47 +01:00
parent 2dfe4ac4c6
commit a2d866d0c2
1 changed files with 63 additions and 8 deletions
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69
copyparty/web/md.js
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@ -158,6 +158,38 @@ function copydom(src, dst, lv) {
}
function md_plug_err(ex, js) {
var errbox = document.getElementById('md_errbox');
if (errbox)
errbox.parentNode.removeChild(errbox);
if (!ex)
return;
var msg = (ex + '').split('\n')[0];
var ln = ex.lineNumber;
var o = null;
if (ln) {
msg = "Line " + ln + ", " + msg;
var lns = js.split('\n');
if (ln < lns.length) {
o = document.createElement('span');
o.style.cssText = 'color:#ac2;font-size:.9em;font-family:scp;display:block';
o.textContent = lns[ln - 1];
}
}
errbox = document.createElement('div');
errbox.setAttribute('id', 'md_errbox');
errbox.style.cssText = 'position:absolute;top:0;left:0;padding:1em .5em;background:#2b2b2b;color:#fc5'
errbox.textContent = msg;
if (o) {
errbox.appendChild(o);
errbox.style.padding = '.25em .5em';
}
dom_nav.appendChild(errbox);
}
function load_plug(md_text, plug_type) {
if (!md_opt.allow_plugins)
return md_text;
@ -177,7 +209,14 @@ function load_plug(md_text, plug_type) {
var old_plug = md_plug[plug_type];
if (!old_plug || old_plug[1] != js) {
js = 'const x = { ' + js + ' }; x;';
try {
var x = eval(js);
}
catch (ex) {
md_plug[plug_type] = null;
md_plug_err(ex, js);
return md;
}
if (x['ctor']) {
x['ctor']();
delete x['ctor'];
@ -191,20 +230,30 @@ function load_plug(md_text, plug_type) {
function convert_markdown(md_text, dest_dom) {
md_text = md_text.replace(/\r/g, '');
md_plug_err(null);
md_text = load_plug(md_text, 'pre');
md_text = load_plug(md_text, 'post');
marked.setOptions({
var marked_opts = {
//headerPrefix: 'h-',
breaks: true,
gfm: true
});
};
if (md_plug['pre']) {
marked.use(md_plug['pre'][0]);
var ext = md_plug['pre'];
if (ext)
Object.assign(marked_opts, ext[0]);
try {
var md_html = marked(md_text, marked_opts);
}
catch (ex) {
if (ext)
md_plug_err(ex, ext[1]);
var md_html = marked(md_text);
throw ex;
}
var md_dom = new DOMParser().parseFromString(md_html, "text/html").body;
var nodes = md_dom.getElementsByTagName('a');
@ -286,8 +335,14 @@ function convert_markdown(md_text, dest_dom) {
el.innerHTML = '<a href="#' + id + '">' + el.innerHTML + '</a>';
}
if (md_plug['post'])
md_plug['post'][0].render(md_dom);
ext = md_plug['post'];
if (ext)
try {
ext[0].render(md_dom);
}
catch (ex) {
md_plug_err(ex, ext[1]);
}
copydom(md_dom, dest_dom, 0);
}