User:Nardog/AutoSectionLink.js
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This code will be executed when previewing this page.
This code will be executed when previewing this page.
This user script seems to have a documentation page at User:Nardog/AutoSectionLink.
['edit', 'submit'].includes(mw.config.get('wgAction')) &&
mw.config.get('wgArticleId') &&
mw.config.get('wgPageContentModel') === 'wikitext' &&
$(async () => {
let form = document.getElementById('editform');
if (!form) return;
let formData = new FormData(form);
let section = formData.get('wpSection');
if (section === 'new') return;
let widget = document.getElementById('wpSummaryWidget');
if (!widget) return;
let isOld = formData.get('altBaseRevId') > 0 ||
(formData.get('baseRevId') || formData.get('parentRevId')) !== formData.get('editRevId');
await mw.loader.using([
'jquery.textSelection', 'mediawiki.util', 'mediawiki.api', 'oojs-ui-core',
'oojs-ui.styles.icons-editing-core'
]);
let $textarea = $('#wpTextbox1');
let input = OO.ui.infuse(widget);
let button = new OO.ui.ButtonWidget({
framed: false,
icon: 'undo',
classes: ['autosectionlink-button'],
invisibleLabel: true,
label: 'Restore previous section link'
}).toggle().on('click', () => {
let cache = button.getData();
input.setValue(input.getValue().replace(
/^(\/\*.*?\*\/)?\s*/,
cache[0] ? '/* ' + cache[0] + ' */ ' : ''
));
updatePreview(cache[0]);
cache.reverse();
}).on('toggle', () => {
input.$input.css('width', `calc(100% - ${button.$element.width()}px)`);
});
input.$input.after(button.$element);
let update = mw.util.debounce($diff => {
let lines = $textarea.textSelection('getContents').trimEnd().split('\n');
let modLines = [...lines];
let firstLineNum;
if (isOld) {
let i, lastLineNum;
$diff.find('td:last-child').each(function () {
if (this.classList.contains('diff-lineno')) {
i = this.textContent.replace(/\D+/g, '') - 1;
} else if (this.classList.contains('diff-context')) {
i++;
} else if (this.classList.contains('diff-addedline')) {
i++;
if (!firstLineNum) {
firstLineNum = i;
}
lastLineNum = i;
} else if (this.classList.contains('diff-empty')) {
if (!firstLineNum) {
firstLineNum = i === 0 ? 1 : i;
}
lastLineNum = i;
}
});
modLines.length = lastLineNum || 0;
} else {
let origLines = $textarea.prop('defaultValue').trimEnd().split('\n');
firstLineNum = lines.findIndex((line, i) => line !== origLines[i]) + 1;
if (!firstLineNum) {
firstLineNum = lines.length < origLines.length
? lines.length
: 1;
}
for (let i = 1, x = lines.length, y = origLines.length;
(section ? i < x : i <= x) && lines[x - i] === origLines[y - i];
i++
) {
modLines.pop();
}
}
let re = /^(={1,6})\s*(.+?)\s*\1\s*(?:<!--.+-->\s*)?$/, lowest = 7;
modLines.slice(firstLineNum).forEach(line => {
let match = line.match(re);
if (match?.[1].length < lowest) {
lowest = match[1].length;
}
});
let head;
modLines.slice(0, firstLineNum).reverse().some(line => {
let match = line.match(re);
if (match?.[1].length < lowest) {
head = match[2];
return true;
}
});
if (head) {
head = head
.replace(/'''(.+?)'''|\[\[:?(?:[^|\]]+\|)?([^\]]+)\]\]|<\/?(?:abbr|b|bdi|bdo|big|cite|code|data|del|dfn|em|font|i|ins|kbd|mark|nowiki|q|rb|ref|rp|rt|rtc|ruby|s|samp|small|span|strike|strong|sub|sup|templatestyles|time|translate|tt|u|var)(?:\s[^>]*)?>|<!--.*?-->|\[(?:https?:)?\/\/[^\s\[\]]+\s([^\]]+)\]/gi, '$1$2$3')
.replace(/''(.+?)''/g, '$1')
.trim();
} else if (modLines.length && lowest === 7 && section < 1 && (
section === '0' || lines.slice(modLines.length).some(line => re.test(line))
)) {
head = '';
}
let v = input.getValue();
let match = v.match(/^\/\*\s*(.+?)\s*\*\/\s*/);
let prev = match?.[1];
if (prev === head) return;
input.setValue((
head || head === '' ? '/* ' + head + ' */ ' : ''
) + (match ? v.slice(match[0].length) : v));
button.setData([prev, head]).toggle(true);
updatePreview(head);
}, 500);
let updatePreview = head => {
let $comment = $('.mw-summary-preview > .comment');
if (!$comment.length) return;
let url;
if (head) {
url = mw.util.getUrl() + '#' + head.replace(/[\s_]+/g, '_');
} else if (head === '') {
head = mw.messages.get('autocomment-top', '(top)');
url = mw.util.getUrl();
}
let paren = [...mw.messages.get('parentheses', '($1)')][0];
let $nodes = $comment.contents();
let $ac = $nodes.eq(1);
if ($nodes[0]?.textContent === paren && $ac.is('.autocomment:first-child')) {
if (head) {
$ac.children('a').attr('href', url).children('bdi').text(head);
} else {
if ($nodes[2]?.nodeType === 3) {
$nodes[2].textContent = $nodes[2].textContent.trimStart();
}
$ac.remove();
}
} else if (head) {
let rtl = document.body.classList.contains('sitedir-rtl');
$comment.prepend(
paren,
$('<span>').addClass('autocomment').append(
$('<a>').attr({
href: url,
title: mw.config.get('wgPageName').replaceAll('_', ' ')
}).text(rtl ? '←' : '→').append(
$('<bdi>').attr('dir', rtl ? 'rtl' : 'ltr').text(head)
),
mw.messages.get('colon-separator', ': ')
)
);
if ($nodes[0]?.nodeType === 3) {
let text = $nodes[0].textContent;
if (text.startsWith(paren)) {
text = text.slice(paren.length);
}
$nodes[0].textContent = ' ' + text;
}
}
};
if (isOld) {
mw.hook('wikipage.diff').add(update);
} else {
$textarea.on('input', update);
mw.hook('ext.CodeMirror.input').add(update);
update();
}
new mw.Api().loadMessagesIfMissing(['autocomment-top', 'colon-separator', 'parentheses']);
mw.loader.addStyleTag('.autosectionlink-button{position:absolute;top:0;right:0;margin:0}');
});