MediaWiki:Common.js

/* Any JavaScript here will be loaded for all users on desktop */

/* Add user subpages toolbox link */
$(function() {
	if (mw.config.get('wgCanonicalNamespace') === 'User' && mw.config.get('skin') !== 'timeless') {
		var subpagesLink = '/Special:PrefixIndex/User:' + mw.config.get('wgTitle').split('/')[0] + '/';
		mw.util.addPortletLink('p-tb', subpagesLink, 'User subpages', 't-subpages', 'Subpages for this user');
	}
});

/* TOC ad unit */
function tocAdPositioner() {
	if ($('.desktopBox').css('position') === 'relative') {
		var winTopPos = $(window).scrollTop();
		var tocHeight = $('#toc').outerHeight();
		var tocTopPos = $('#toc').offset().top;
		var tocBotPos = tocTopPos + tocHeight;
		if (tocBotPos > winTopPos) {
			var boxWidth = $('.desktopBox').outerWidth();
			var boxHeight = $('.desktopBox').outerHeight();
			var boxMarginLeft = parseFloat($('.desktopBox').css('marginLeft'));
			var boxRightPos = $('.desktopBox').offset().left + boxWidth + parseFloat($('.desktopBox').css('right'));
			var tocRightPos = $('#toc').offset().left + $('#toc').outerWidth();
			$('.desktopBox').css('right', (boxRightPos - tocRightPos - boxWidth - boxMarginLeft)/2);
			if (tocHeight > boxHeight) {
				var winBotPos = $(window).scrollTop() + $(window).outerHeight();
				var curBotPos = winBotPos > tocBotPos ? tocBotPos : winBotPos;
				var offsetVal = boxHeight > 300 ? 4 : 2;
				var topOffset = (curBotPos - winTopPos - boxHeight)/offsetVal;
				if (tocTopPos - topOffset > winTopPos)
					$('.desktopBox').css('top', 0);
				else if (tocBotPos - boxHeight - topOffset > winTopPos)
					$('.desktopBox').css('top', winTopPos - tocTopPos + topOffset);
				else
					$('.desktopBox').css('top', tocHeight - boxHeight);
			}
		}
	}
}
$(function() {
	if ($('.desktopBox').length) {
		$(tocAdPositioner);
		$(window).on('scroll resize', function() {
			$(tocAdPositioner);
		});
	}
});