MediaWiki:Common.js

Note: After publishing, you may have to bypass your browser's cache to see the changes.

• Firefox / Safari: Hold Shift while clicking Reload, or press either Ctrl-F5 or Ctrl-R (⌘-R on a Mac)
• Google Chrome: Press Ctrl-Shift-R (⌘-Shift-R on a Mac)
• Edge: Hold Ctrl while clicking Refresh, or press Ctrl-F5.

/* Any JavaScript here will be loaded for all users on every page load. */
/**
 * Keep code in MediaWiki:Common.js to a minimum as it is unconditionally
 * loaded for all users on every wiki page. If possible create a gadget that is
 * enabled by default instead of adding it here (since gadgets are fully
 * optimized ResourceLoader modules with possibility to add dependencies etc.)
 *
 * Since Common.js isn't a gadget, there is no place to declare its
 * dependencies, so we have to lazy load them with mw.loader.using on demand and
 * then execute the rest in the callback. In most cases these dependencies will
 * be loaded (or loading) already and the callback will not be delayed. In case a
 * dependency hasn't arrived yet it'll make sure those are loaded before this.
 */

/* global mw, $ */
/* jshint strict:false, browser:true */

mw.loader.using( [ 'mediawiki.util' ] ).done( function () {
	/* Begin of mw.loader.using callback */

	/**
	 * Map addPortletLink to mw.util
	 * @deprecated: Use mw.util.addPortletLink instead.
	 */
	mw.log.deprecate( window, 'addPortletLink', mw.util.addPortletLink, 'Use mw.util.addPortletLink instead' );

	/**
	 * @source www.mediawiki.org/wiki/Snippets/Load_JS_and_CSS_by_URL
	 * @rev 6
	 */
	var extraCSS = mw.util.getParamValue( 'withCSS' ),
		extraJS = mw.util.getParamValue( 'withJS' );

	if ( extraCSS ) {
		if ( extraCSS.match( /^MediaWiki:[^&<>=%#]*\.css$/ ) ) {
			mw.loader.load( '/w/index.php?title=' + extraCSS + '&action=raw&ctype=text/css', 'text/css' );
		} else {
			mw.notify( 'Only pages from the MediaWiki namespace are allowed.', { title: 'Invalid withCSS value' } );
		}
	}

	if ( extraJS ) {
		if ( extraJS.match( /^MediaWiki:[^&<>=%#]*\.js$/ ) ) {
			mw.loader.load( '/w/index.php?title=' + extraJS + '&action=raw&ctype=text/javascript' );
		} else {
			mw.notify( 'Only pages from the MediaWiki namespace are allowed.', { title: 'Invalid withJS value' } );
		}
	}

	/**
	 * Collapsible tables; reimplemented with mw-collapsible
	 * Styling is also in place to avoid FOUC
	 *
	 * Allows tables to be collapsed, showing only the header. See [[Help:Collapsing]].
	 * @version 3.0.0 (2018-05-20)
	 * @source https://www.mediawiki.org/wiki/MediaWiki:Gadget-collapsibleTables.js
	 * @author [[User:R. Koot]]
	 * @author [[User:Krinkle]]
	 * @author [[User:TheDJ]]
	 * @deprecated Since MediaWiki 1.20: Use class="mw-collapsible" instead which
	 * is supported in MediaWiki core. Shimmable since MediaWiki 1.32
	 *
	 * @param {jQuery} $content
	 */
	function makeCollapsibleMwCollapsible( $content ) {
		var $tables = $content
			.find( 'table.collapsible:not(.mw-collapsible)' )
			.addClass( 'mw-collapsible' );

		$.each( $tables, function ( index, table ) {
			// mw.log.warn( 'This page is using the deprecated class collapsible. Please replace it with mw-collapsible.');
			if ( $( table ).hasClass( 'collapsed' ) ) {
				$( table ).addClass( 'mw-collapsed' );
				// mw.log.warn( 'This page is using the deprecated class collapsed. Please replace it with mw-collapsed.');
			}
		} );
		if ( $tables.length > 0 ) {
			mw.loader.using( 'jquery.makeCollapsible' ).then( function () {
				$tables.makeCollapsible();
			} );
		}
	}
	mw.hook( 'wikipage.content' ).add( makeCollapsibleMwCollapsible );

	/**
	 * Add support to mw-collapsible for autocollapse, innercollapse and outercollapse
	 *
	 * Maintainers: TheDJ
	 */
	function mwCollapsibleSetup( $collapsibleContent ) {
		var $element,
			$toggle,
			autoCollapseThreshold = 2;
		$.each( $collapsibleContent, function ( index, element ) {
			$element = $( element );
			if ( $element.hasClass( 'collapsible' ) ) {
				$element.find( 'tr:first > th:first' ).prepend( $element.find( 'tr:first > * > .mw-collapsible-toggle' ) );
			}
			if ( $collapsibleContent.length >= autoCollapseThreshold && $element.hasClass( 'autocollapse' ) ) {
				$element.data( 'mw-collapsible' ).collapse();
			} else if ( $element.hasClass( 'innercollapse' ) ) {
				if ( $element.parents( '.outercollapse' ).length > 0 ) {
					$element.data( 'mw-collapsible' ).collapse();
				}
			}
			// because of colored backgrounds, style the link in the text color
			// to ensure accessible contrast
			$toggle = $element.find( '.mw-collapsible-toggle' );
			if ( $toggle.length ) {
				// Make the toggle inherit text color (Updated for T333357 2023-04-29)
				if ( $toggle.parent()[ 0 ].style.color ) {
					$toggle.css( 'color', 'inherit' );
					$toggle.find( '.mw-collapsible-text' ).css( 'color', 'inherit' );
				}
			}
		} );
	}

	mw.hook( 'wikipage.collapsibleContent' ).add( mwCollapsibleSetup );

	/* End of mw.loader.using callback */
} );

// Back to top (CapSach) — all skins; mobile widths
(function () {
  var ID = 'cps-backtotop';

  function ensureButton() {
    if (document.getElementById(ID)) return;

    var btn = document.createElement('button');
    btn.id = ID;
    btn.type = 'button';
    btn.setAttribute('aria-label', 'Back to top');
    btn.title = 'Back to top';
    btn.innerHTML = '<span aria-hidden="true">↑</span>';

    document.body.appendChild(btn);
    updateVisibility();

    var prefersReducedMotion = false;
    try {
      prefersReducedMotion = window.matchMedia('(prefers-reduced-motion: reduce)').matches;
    } catch (e) {}

    btn.addEventListener('click', function () {
      try {
        window.scrollTo({ top: 0, behavior: prefersReducedMotion ? 'auto' : 'smooth' });
      } catch (e) {
        // Older browsers
        window.scrollTo(0, 0);
      }
    });

    window.addEventListener('scroll', onScroll, { passive: true });
    window.addEventListener('resize', onScroll, { passive: true });
  }

  var ticking = false;
  function onScroll() {
    if (!ticking) {
      window.requestAnimationFrame(function () {
        updateVisibility();
        ticking = false;
      });
      ticking = true;
    }
  }

  function updateVisibility() {
    var show = window.pageYOffset > 300 &&
               document.documentElement.scrollHeight > window.innerHeight * 2;
    var el = document.getElementById(ID);
    if (el) el.classList.toggle('is-visible', show);
  }

  // Run on initial load
  if (document.readyState === 'loading') {
    document.addEventListener('DOMContentLoaded', ensureButton);
  } else {
    ensureButton();
  }

  // Also run when MediaWiki re-initializes page content (preview, some SPA-ish flows)
  if (window.mw && mw.hook) {
    mw.hook('wikipage.content').add(ensureButton);
  }
})();

/* DO NOT ADD CODE BELOW THIS LINE */