User:Nardog/CopySectLink.js

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This user script seems to have a documentation page at User:Nardog/CopySectLink.

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mw.config.get('wgNamespaceNumber') >= 0 &&
$.when($.ready, mw.loader.using('mediawiki.util')).then(function copySectLink() {
	let handler = function (e) {
		e.preventDefault();
		let text = (mw.config.get('wgPageName') + (this.hash ? decodeURI(this.hash).replace(
			/[\[\]\{\|\}]/g,
			s => '&#' + s.codePointAt(0) + ';'
		) : '')).replace(/_/g, ' ');
		navigator.clipboard.writeText(text).then(() => {
			mw.notify(`Copied "${text}"`);
		}, () => {
			let $input = $('<input>').attr({
				type: 'text',
				value: text,
				readonly: '',
				style: 'position:fixed;top:-100%'
			}).appendTo(document.body);
			$input[0].select();
			document.execCommand('copy');
			$input.remove();
			mw.notify(`Probably copied "${text}"`);
		});
	};
	let css;
	switch (mw.config.get('skin')) {
		case 'minerva':
			css = '.collapsible-heading:not(.open-block) .copysectlink{visibility:hidden} .mw-editsection{white-space:nowrap}';
			break;
		case 'timeless':
			css = '.copysectlink{background-color:#fff;margin-left:-1em} .copysectlink:first-of-type{margin-left:-20px;padding-left:0} .copysectlink::before{content:"";display:inline-block;width:16px;height:16px;background-size:16px 16px;vertical-align:bottom;opacity:0.5}';
	}
	if (css) {
		mw.loader.addStyleTag(`.copysectlink::before{background-image:url("data:image/svg+xml,%3Csvg width='20' height='20' version='1.1' viewBox='0 0 20 20' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='%2354595d'%3E%3Cpath d='M16 0H5v2h11v14h2V2a2 2 0 0 0-2-2z'/%3E%3Cpath d='m4 20h9c1.1 0 2-0.9 2-2v-13c0-1.1-0.9-2-2-2h-9c-1.1 0-2 0.9-2 2v13c0 1.1 0.9 2 2 2zm0-15h9v13h-9z'/%3E%3C/g%3E%3C/svg%3E")} ${css}`);
	}
	let addButton = function () {
		let isFirst = this.id === 'firstHeading';
		let hn = isFirst ? this : this.parentElement;
		if (hn.querySelector('.copysectlink')) return;
		let $button = $('<a>').attr({
			class: 'copysectlink',
			href: mw.util.getUrl() + (isFirst ? '' : '#' + this.id),
			role: 'button'
		}).text('copy').click(handler);
		if (mw.config.get('skin') === 'minerva') {
			$button.addClass('mw-ui-icon mw-ui-icon-element').attr('title', 'Copy');
			let wrapper = hn.querySelector('.mw-editsection');
			if (wrapper) {
				$button.prependTo(wrapper);
			} else {
				$button.appendTo(hn);
			}
		} else {
			let bracket = hn.querySelector('.mw-editsection-bracket:last-child');
			if (bracket) {
				bracket.insertAdjacentText('beforebegin', ' | ');
			} else {
				bracket = $('<span>').addClass('mw-editsection-bracket').text(']')[0];
				$('<span>').addClass('mw-editsection').append(
					$('<span>').addClass('mw-editsection-bracket').text('['),
					bracket
				).appendTo(hn);
			}
			$button.insertBefore(bracket);
		}
	};
	let waitFor = ['ext.gadget.edittop', 'ext.gadget.edit0'].filter(m => {
		let state = mw.loader.getState(m);
		return state && state!== 'registered';
	});
	mw.loader.using(waitFor, () => {
		addButton.call(document.getElementById('firstHeading'));
	});
	if (mw.config.get('wgAction') !== 'view') return;
	mw.hook('wikipage.content').add($content => {
		$content.find('.mw-headline').each(addButton);
	});
});