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/*
* Javascript for module editWarning
*/
( function ( mw, $ ) {
'use strict';
$( function () {
var savedWindowOnBeforeUnload,
$wpTextbox1 = $( '#wpTextbox1' ),
$wpSummary = $( '#wpSummary' );
// Check if EditWarning is enabled and if we need it
if ( $wpTextbox1.length === 0 ) {
return true;
}
// Get the original values of some form elements
$wpTextbox1.add( $wpSummary ).each( function () {
$( this ).data( 'origtext', $( this ).val() );
} );
$( window )
.on( 'beforeunload.editwarning', function () {
var retval;
// Check if the current values of some form elements are the same as
// the original values
if (
mw.config.get( 'wgAction' ) === 'submit' ||
$wpTextbox1.data( 'origtext' ) !== $wpTextbox1.textSelection( 'getContents' ) ||
$wpSummary.data( 'origtext' ) !== $wpSummary.textSelection( 'getContents' )
) {
// Return our message
retval = mw.msg( 'editwarning-warning' );
}
// Unset the onbeforeunload handler so we don't break page caching in Firefox
savedWindowOnBeforeUnload = window.onbeforeunload;
window.onbeforeunload = null;
if ( retval !== undefined ) {
// ...but if the user chooses not to leave the page, we need to rebind it
setTimeout( function () {
window.onbeforeunload = savedWindowOnBeforeUnload;
}, 1 );
return retval;
}
} )
.on( 'pageshow.editwarning', function () {
// Re-add onbeforeunload handler
if ( !window.onbeforeunload ) {
window.onbeforeunload = savedWindowOnBeforeUnload;
}
} );
// Add form submission handler
$( '#editform' ).submit( function () {
// Unbind our handlers
$( window ).off( '.editwarning' );
} );
} );
}( mediaWiki, jQuery ) );
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