Current File : //www/varak.net/wiki.varak.net/resources/src/mediawiki.special.preferences.ooui/tabs.js
/*!
* JavaScript for Special:Preferences: Tab navigation.
*/
( function () {
$( function () {
var $preferences, tabs, wrapper, previousTab, switchingNoHash;
$preferences = $( '#preferences' );
// Make sure the accessibility tip is selectable so that screen reader users take notice,
// but hide it by default to reduce visual clutter.
// Make sure it becomes visible when focused.
$( '<div>' ).addClass( 'mw-navigation-hint' )
.text( mw.msg( 'prefs-tabs-navigation-hint' ) )
.attr( 'tabIndex', 0 )
.prependTo( '#mw-content-text' );
tabs = new OO.ui.IndexLayout( {
expanded: false,
// Do not remove focus from the tabs menu after choosing a tab
autoFocus: false
} );
mw.config.get( 'wgPreferencesTabs' ).forEach( function ( tabConfig ) {
var panel, $panelContents;
panel = new OO.ui.TabPanelLayout( tabConfig.name, {
expanded: false,
label: tabConfig.label
} );
$panelContents = $( '#mw-prefsection-' + tabConfig.name );
// Hide the unnecessary PHP PanelLayouts
// (Do not use .remove(), as that would remove event handlers for everything inside them)
$panelContents.parent().detach();
panel.$element.append( $panelContents );
tabs.addTabPanels( [ panel ] );
// Remove duplicate labels
// (This must be after .addTabPanels(), otherwise the tab item doesn't exist yet)
$panelContents.children( 'legend' ).remove();
$panelContents.attr( 'aria-labelledby', panel.getTabItem().getElementId() );
} );
wrapper = new OO.ui.PanelLayout( {
expanded: false,
padded: false,
framed: true
} );
wrapper.$element.append( tabs.$element );
$preferences.prepend( wrapper.$element );
$( '.mw-prefs-faketabs' ).remove();
function enhancePanel( panel ) {
if ( !panel.$element.data( 'mw-section-infused' ) ) {
// mw-htmlform-autoinfuse-lazy class has been removed by replacing faketabs
mw.hook( 'htmlform.enhance' ).fire( panel.$element );
panel.$element.data( 'mw-section-infused', true );
}
}
function onTabPanelSet( panel ) {
var scrollTop, active;
if ( switchingNoHash ) {
return;
}
// Handle hash manually to prevent jumping,
// therefore save and restore scrollTop to prevent jumping.
scrollTop = $( window ).scrollTop();
// Changing the hash apparently causes keyboard focus to be lost?
// Save and restore it. This makes no sense though.
active = document.activeElement;
location.hash = '#mw-prefsection-' + panel.getName();
if ( active ) {
active.focus();
}
$( window ).scrollTop( scrollTop );
}
tabs.on( 'set', onTabPanelSet );
/**
* @ignore
* @param {string} name the name of a tab without the prefix ("mw-prefsection-")
* @param {boolean} [noHash] A hash will be set according to the current
* open section. Use this flag to suppress this.
*/
function switchPrefTab( name, noHash ) {
if ( noHash ) {
switchingNoHash = true;
}
tabs.setTabPanel( name );
enhancePanel( tabs.getCurrentTabPanel() );
if ( noHash ) {
switchingNoHash = false;
}
}
// Jump to correct section as indicated by the hash.
// This function is called onload and onhashchange.
function detectHash() {
var hash = location.hash,
matchedElement, parentSection;
if ( hash.match( /^#mw-prefsection-[\w]+$/ ) ) {
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-', '' ), true );
matchedElement.scrollIntoView();
}
}
}
$( window ).on( 'hashchange', function () {
var hash = location.hash;
if ( hash.match( /^#mw-[\w-]+/ ) ) {
detectHash();
} else if ( hash === '' ) {
switchPrefTab( 'personal', true );
}
} )
// Run the function immediately to select the proper tab on startup.
.trigger( 'hashchange' );
// Restore the active tab after saving the preferences
previousTab = mw.storage.session.get( 'mwpreferences-prevTab' );
if ( previousTab ) {
switchPrefTab( previousTab, true );
// 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 = tabs.getCurrentTabPanelName();
mw.storage.session.set( 'mwpreferences-prevTab', value );
} );
} );
}() );
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