--- /dev/null
+/*!
+ * JavaScript for Special:Preferences: Tab navigation.
+ */
+( function ( mw, $ ) {
+ $( function () {
+ var $preftoc, $preferences, $fieldsets, labelFunc, previousTab;
+
+ labelFunc = function () {
+ return this.id.replace( /^mw-prefsection/g, 'preftab' );
+ };
+
+ $preftoc = $( '#preftoc' );
+ $preferences = $( '#preferences' );
+
+ $fieldsets = $preferences.children( 'fieldset' )
+ .attr( {
+ role: 'tabpanel',
+ 'aria-labelledby': labelFunc
+ } );
+ $fieldsets.not( '#mw-prefsection-personal' )
+ .hide()
+ .attr( 'aria-hidden', 'true' );
+
+ // T115692: The following is kept for backwards compatibility with older skins
+ $preferences.addClass( 'jsprefs' );
+ $fieldsets.addClass( 'prefsection' );
+ $fieldsets.children( 'legend' ).addClass( 'mainLegend' );
+
+ // Make sure the accessibility tip is selectable so that screen reader users take notice,
+ // but hide it per default to reduce interface clutter. Also make sure it becomes visible
+ // when selected. Similar to jquery.mw-jump
+ $( '<div>' ).addClass( 'mw-navigation-hint' )
+ .text( mw.msg( 'prefs-tabs-navigation-hint' ) )
+ .attr( 'tabIndex', 0 )
+ .on( 'focus blur', function ( e ) {
+ if ( e.type === 'blur' || e.type === 'focusout' ) {
+ $( this ).css( 'height', '0' );
+ } else {
+ $( this ).css( 'height', 'auto' );
+ }
+ } ).insertBefore( $preftoc );
+
+ /**
+ * It uses document.getElementById for security reasons (HTML injections in $()).
+ *
+ * @ignore
+ * @param {string} name the name of a tab without the prefix ("mw-prefsection-")
+ * @param {string} [mode] A hash will be set according to the current
+ * open section. Set mode 'noHash' to surpress this.
+ */
+ function switchPrefTab( name, mode ) {
+ var $tab, scrollTop;
+ // Handle hash manually to prevent jumping,
+ // therefore save and restore scrollTop to prevent jumping.
+ scrollTop = $( window ).scrollTop();
+ if ( mode !== 'noHash' ) {
+ location.hash = '#mw-prefsection-' + name;
+ }
+ $( window ).scrollTop( scrollTop );
+
+ $preftoc.find( 'li' ).removeClass( 'selected' )
+ .find( 'a' ).attr( {
+ tabIndex: -1,
+ 'aria-selected': 'false'
+ } );
+
+ $tab = $( document.getElementById( 'preftab-' + name ) );
+ if ( $tab.length ) {
+ $tab.attr( {
+ tabIndex: 0,
+ 'aria-selected': 'true'
+ } ).focus()
+ .parent().addClass( 'selected' );
+
+ $preferences.children( 'fieldset' ).hide().attr( 'aria-hidden', 'true' );
+ $( document.getElementById( 'mw-prefsection-' + name ) ).show().attr( 'aria-hidden', 'false' );
+ }
+ }
+
+ // Enable keyboard users to use left and right keys to switch tabs
+ $preftoc.on( 'keydown', function ( event ) {
+ var keyLeft = 37,
+ keyRight = 39,
+ $el;
+
+ if ( event.keyCode === keyLeft ) {
+ $el = $( '#preftoc li.selected' ).prev().find( 'a' );
+ } else if ( event.keyCode === keyRight ) {
+ $el = $( '#preftoc li.selected' ).next().find( 'a' );
+ } else {
+ return;
+ }
+ if ( $el.length > 0 ) {
+ switchPrefTab( $el.attr( 'href' ).replace( '#mw-prefsection-', '' ) );
+ }
+ } );
+
+ // Jump to correct section as indicated by the hash.
+ // This function is called onload and onhashchange.
+ function detectHash() {
+ var hash = location.hash,
+ matchedElement, parentSection;
+ if ( hash.match( /^#mw-prefsection-[\w]+$/ ) ) {
+ mw.storage.session.remove( 'mwpreferences-prevTab' );
+ switchPrefTab( hash.replace( '#mw-prefsection-', '' ) );
+ } else if ( hash.match( /^#mw-[\w-]+$/ ) ) {
+ matchedElement = document.getElementById( hash.slice( 1 ) );
+ parentSection = $( matchedElement ).parent().closest( '[id^="mw-prefsection-"]' );
+ if ( parentSection.length ) {
+ mw.storage.session.remove( 'mwpreferences-prevTab' );
+ // Switch to proper tab and scroll to selected item.
+ switchPrefTab( parentSection.attr( 'id' ).replace( 'mw-prefsection-', '' ), 'noHash' );
+ matchedElement.scrollIntoView();
+ }
+ }
+ }
+
+ // In browsers that support the onhashchange event we will not bind click
+ // handlers and instead let the browser do the default behavior (clicking the
+ // <a href="#.."> will naturally set the hash, handled by onhashchange.
+ // But other things that change the hash will also be caught (e.g. using
+ // the Back and Forward browser navigation).
+ // Note the special check for IE "compatibility" mode.
+ if ( 'onhashchange' in window &&
+ ( document.documentMode === undefined || document.documentMode >= 8 )
+ ) {
+ $( window ).on( 'hashchange', function () {
+ var hash = location.hash;
+ if ( hash.match( /^#mw-[\w-]+/ ) ) {
+ detectHash();
+ } else if ( hash === '' ) {
+ switchPrefTab( 'personal', 'noHash' );
+ }
+ } )
+ // Run the function immediately to select the proper tab on startup.
+ .trigger( 'hashchange' );
+ // In older browsers we'll bind a click handler as fallback.
+ // We must not have onhashchange *and* the click handlers, otherwise
+ // the click handler calls switchPrefTab() which sets the hash value,
+ // which triggers onhashchange and calls switchPrefTab() again.
+ } else {
+ $preftoc.on( 'click', 'li a', function ( e ) {
+ switchPrefTab( $( this ).attr( 'href' ).replace( '#mw-prefsection-', '' ) );
+ e.preventDefault();
+ } );
+ // If we've reloaded the page or followed an open-in-new-window,
+ // make the selected tab visible.
+ detectHash();
+ }
+
+ // Restore the active tab after saving the preferences
+ previousTab = mw.storage.session.get( 'mwpreferences-prevTab' );
+ if ( previousTab ) {
+ switchPrefTab( previousTab, 'noHash' );
+ // Deleting the key, the tab states should be reset until we press Save
+ mw.storage.session.remove( 'mwpreferences-prevTab' );
+ }
+
+ $( '#mw-prefs-form' ).on( 'submit', function () {
+ var value = $( $preftoc ).find( 'li.selected a' ).attr( 'id' ).replace( 'preftab-', '' );
+ mw.storage.session.set( 'mwpreferences-prevTab', value );
+ } );
+
+ } );
+}( mediaWiki, jQuery ) );
scripts.mit.edu / autoinstallsdev / mediawiki.git / blobdiff