User:Awesome Aasim/copycodeblock.js

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This user script seems to have a documentation page at User:Awesome Aasim/copycodeblock.

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(function copyCodeBlock() {
	let addButtons = $pres => {
		$pres.each(() => {
			let $pre = $(this);
			let button = new OO.ui.ButtonWidget({
				classes: ['copycodeblock'],
				framed: false,
				icon: 'copy',
				title: 'Copy to clipboard',
			});
			button.$element.click(() => {
				var value = $pre.text();
				var $temp = $("<textarea>");
				$("body").append($temp);
				$temp.val(value).select();
				document.execCommand("copy");
				$temp.remove();
				button.icon = 'checkAll';
				window.setTimeout(function() {
					button.icon = 'check';
				}, 3000);
			});
			$pre.addClass('copycodeblock-block').append(button.$element);
		})
	};
	let run;
	$(document).ready(() => {
		let $pres = $("#mw-content-text").find('pre').not('form *');
		if (!$pres.length) return;
		if (run) {
			addButtons($pres);
			return;
		}
		run = true;
		mw.loader.addStyleTag('.copycodeblock-block{position:relative} .copycodeblock{position:absolute;top:0;right:0} :not(:hover) > .copycodeblock:not(:focus-within){opacity:0}');
		mw.loader.using(['oojs-ui-core', 'oojs-ui.styles.icons-editing-advanced'], () => {
			addButtons($pres);
		});
	});
}());