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/**
* JavaScript for History action
*/
jQuery( document ).ready( function ( $ ) {
var $historyCompareForm = $( '#mw-history-compare' ),
$historySubmitter,
$lis = $( '#pagehistory > li' );
/**
* @context {Element} input
* @param e {jQuery.Event}
*/
function updateDiffRadios() {
var diffLi = false, // the li where the diff radio is checked
oldLi = false; // the li where the oldid radio is checked
if ( !$lis.length ) {
return true;
}
$lis
.removeClass( 'selected' )
.each( function () {
var $li = $(this),
$inputs = $li.find( 'input[type="radio"]' ),
$oldidRadio = $inputs.filter( '[name="oldid"]' ).eq(0),
$diffRadio = $inputs.filter( '[name="diff"]' ).eq(0);
if ( !$oldidRadio.length || !$diffRadio.length ) {
return true;
}
if ( $oldidRadio.prop( 'checked' ) ) {
oldLi = true;
$li.addClass( 'selected' );
$oldidRadio.css( 'visibility', 'visible' );
$diffRadio.css( 'visibility', 'hidden' );
} else if ( $diffRadio.prop( 'checked' ) ) {
diffLi = true;
$li.addClass( 'selected' );
$oldidRadio.css( 'visibility', 'hidden' );
$diffRadio.css( 'visibility', 'visible' );
// This list item has neither checked
} else {
// We're below the selected radios
if ( diffLi && oldLi ) {
$oldidRadio.css( 'visibility', 'visible' );
$diffRadio.css( 'visibility', 'hidden' );
// We're between the selected radios
} else if ( diffLi ) {
$diffRadio.css( 'visibility', 'visible' );
$oldidRadio.css( 'visibility', 'visible' );
// We're above the selected radios
} else {
$diffRadio.css( 'visibility', 'visible' );
$oldidRadio.css( 'visibility', 'hidden' );
}
}
});
return true;
}
$lis.find( 'input[name="diff"], input[name="oldid"]' ).click( updateDiffRadios );
// Set initial state
updateDiffRadios();
// Prettify url output for HistoryAction submissions,
// to cover up action=historysubmit construction.
// Ideally we'd use e.target instead of $historySubmitter, but e.target points
// to the form element for submit actions, so.
$historyCompareForm.find( '.historysubmit' ).click( function () {
$historySubmitter = $(this);
} );
// On submit we clone the form element, remove unneeded fields in the clone
// that pollute the query parameter with stuff from the other "use case",
// and then submit the clone.
// Without the cloning we'd be changing the real form, which is slower, could make
// the page look broken for a second in slow browsers and might show the form broken
// again when coming back from a "next" page.
$historyCompareForm.submit( function ( e ) {
var $copyForm, $copyRadios, $copyAction;
if ( $historySubmitter ) {
$copyForm = $historyCompareForm.clone();
$copyRadios = $copyForm.find( '#pagehistory > li' ).find( 'input[name="diff"], input[name="oldid"]' );
$copyAction = $copyForm.find( '> [name="action"]');
// Remove action=historysubmit and ids[..]=..
if ( $historySubmitter.hasClass( 'mw-history-compareselectedversions-button' ) ) {
$copyAction.remove();
$copyForm.find( 'input[name^="ids["]:checked' ).prop( 'checked', false );
// Remove diff=&oldid=, change action=historysubmit to revisiondelete, remove revisiondelete
} else if ( $historySubmitter.hasClass( 'mw-history-revisiondelete-button' ) ) {
$copyRadios.remove();
$copyAction.val( $historySubmitter.attr( 'name' ) );
$copyForm.find( ':submit' ).remove();
}
// IE7 doesn't do submission from an off-DOM clone, so insert hidden into document first
// Also remove potentially conflicting id attributes that we don't need anyway
$copyForm
.css( 'display', 'none' )
.find('[id]')
.removeAttr('id')
.end()
.insertAfter( $historyCompareForm )
.submit();
e.preventDefault();
return false; // Because the submit is special, return false as well.
}
// Continue natural browser handling other wise
return true;
} );
} );
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