MediaWiki:Common.js

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/* Any JavaScript here will be loaded for all users on every page load. */
(function() {
    function applyEffects(el) {
        const hasEffect = ['wavy', 'rainbow', 'jolt', 'force-glow', 'force-shadow'].some(cls => el.classList.contains(cls));
        if (!hasEffect || el.getAttribute('data-animated') === 'true') return;

        const chars = el.textContent.split('');
        const isRainbow = el.classList.contains('rainbow');
        const isWavy = el.classList.contains('wavy');
        const isJolt = el.classList.contains('jolt');

        el.style.setProperty('animation', 'none', 'important');

        const newHTML = chars.map((c, i) => {
            let delays = [];
            
            if (isWavy) delays.push((i * -0.15).toFixed(2) + 's');
            if (isRainbow) delays.push((i * -0.15).toFixed(2) + 's');
            
            if (isJolt) {
                // Increased random range to ensure letters are totally out of sync
                delays.push((Math.random() * -1.0).toFixed(2) + 's');
            }

            const content = (c === ' ') ? '&nbsp;' : c;
            const delayStyle = delays.length > 0 ? `animation-delay: ${delays.join(', ')} !important;` : '';
            
            return `<span style="${delayStyle}">${content}</span>`;
        }).join('');

        el.innerHTML = newHTML;
        el.setAttribute('data-animated', 'true');
    }

    mw.hook('wikipage.content').add(function($content) {
        $content.find('.text-animation-container').each(function() {
            applyEffects(this);
        });
    });
})();