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( function ( $ ) {
$.fn.shuffleQuiz = function () {
var allElems = this.get(),
getRandom = function ( max ) {
return Math.floor( Math.random() * max );
},
shuffled = $.map( allElems, function () {
var random = getRandom( allElems.length ),
randEl = $( allElems[ random ] ).clone( true )[ 0 ];
allElems.splice( random, 1 );
return randEl;
} );
this.each( function ( i ) {
$( this ).replaceWith( $( shuffled[ i ] ) );
} );
return $( shuffled );
};
} )( jQuery );
jQuery( function ( $ ) {
$( '.jetpack-quiz' ).each( function () {
var quiz = $( this );
quiz.find( 'div.jetpack-quiz-answer' ).shuffleQuiz();
quiz.find( 'div[data-correct]' ).removeAttr( 'data-correct' ).data( 'correct', 1 );
quiz.find( 'div.jetpack-quiz-answer:last' ).addClass( 'last' );
} );
$( 'div.jetpack-quiz' ).on( 'click', 'div.jetpack-quiz-answer', function () {
var trackid,
answer = $( this ),
quiz = answer.closest( 'div.jetpack-quiz' );
if ( quiz.data( 'a8ctraining' ) ) {
new Image().src =
'//pixel.wp.com/b.gif?v=wpcom-no-pv&x_trainingchaos-' +
quiz.data( 'username' ) +
'=' +
quiz.data( 'a8ctraining' ) +
'&rand=' +
Math.random();
quiz.data( 'a8ctraining', false );
quiz.data( 'trackid', false );
}
trackid = quiz.data( 'trackid' );
if ( answer.data( 'correct' ) ) {
answer.addClass( 'correct' );
if ( trackid ) {
new Image().src =
'//pixel.wp.com/b.gif?v=wpcom-no-pv&x_quiz-' + trackid + '=correct&rand=' + Math.random();
}
} else {
answer.addClass( 'wrong' );
if ( trackid ) {
new Image().src =
'//pixel.wp.com/b.gif?v=wpcom-no-pv&x_quiz-' + trackid + '=wrong&rand=' + Math.random();
}
}
// only track the first answer
quiz.data( 'trackid', false );
} );
} );
document.querySelectorAll( '.jetpack-quiz-wrapper' ).forEach( function ( quiz ) {
quiz.childNodes.forEach( function ( element, number ) {
element.style.display = 'none';
element.setAttribute( 'quiz-number', number );
element.querySelector( '.jetpack-quiz-count' ).innerHTML =
number + 1 + '/' + quiz.childElementCount;
} );
quiz.childNodes[ 0 ].style.display = 'block';
} );
document.querySelectorAll( '.jetpack-quiz-option-button' ).forEach( function ( element ) {
element.addEventListener( 'click', function () {
var currentQuiz = element.parentElement.parentElement;
currentQuiz.style.display = 'none';
var switchNumber = element.getAttribute( 'data-quiz-option' ) === 'next' ? 1 : -1;
var newQuiz =
currentQuiz.parentElement.childNodes[
parseInt( currentQuiz.getAttribute( 'quiz-number' ) ) + switchNumber
];
newQuiz.style.display = 'block';
var newQuizQuestionEl = newQuiz.querySelector( '.jetpack-quiz-question' );
if ( newQuizQuestionEl ) {
newQuizQuestionEl.focus();
}
} );
} );
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