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/* Testimonial Carousel — frontend.js */ |
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( function () { |
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function initCarousel( wrap ) { |
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const slides = wrap.querySelectorAll( '.bktc-slide' ); |
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if ( ! slides.length ) return; |
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|
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const autoplay = wrap.dataset.autoplay === '1'; |
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const speed = parseInt( wrap.dataset.speed ) || 3500; |
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const loop = wrap.dataset.loop === '1'; |
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const pauseHover = wrap.dataset.hover === '1'; |
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const showDots = wrap.dataset.dots === '1'; |
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|
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let current = 0; |
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let timer = null; |
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|
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/* Build dots */ |
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if ( showDots ) { |
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const dotsWrap = wrap.querySelector( '.bktc-dots' ); |
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if ( dotsWrap ) { |
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slides.forEach( (_, i) => { |
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const dot = document.createElement( 'button' ); |
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dot.className = 'bktc-dot' + ( i === 0 ? ' bktc-dot-active' : '' ); |
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dot.addEventListener( 'click', () => goTo(i) ); |
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dotsWrap.appendChild( dot ); |
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} ); |
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} |
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} |
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|
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function updateDots() { |
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const dots = wrap.querySelectorAll( '.bktc-dot' ); |
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dots.forEach( (d, i) => d.classList.toggle( 'bktc-dot-active', i === current ) ); |
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} |
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|
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function goTo( idx ) { |
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slides[ current ].classList.remove( 'bktc-active' ); |
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if ( loop ) { |
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current = ( idx + slides.length ) % slides.length; |
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} else { |
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current = Math.max( 0, Math.min( idx, slides.length - 1 ) ); |
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} |
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slides[ current ].classList.add( 'bktc-active' ); |
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updateDots(); |
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} |
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|
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function next() { goTo( current + 1 ); } |
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function prev() { goTo( current - 1 ); } |
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|
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/* Arrows */ |
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const prevBtn = wrap.querySelector( '.bktc-prev' ); |
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const nextBtn = wrap.querySelector( '.bktc-next' ); |
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if ( prevBtn ) prevBtn.addEventListener( 'click', () => { clearInterval(timer); prev(); startAutoplay(); } ); |
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if ( nextBtn ) nextBtn.addEventListener( 'click', () => { clearInterval(timer); next(); startAutoplay(); } ); |
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|
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/* Keyboard */ |
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wrap.setAttribute( 'tabindex', '0' ); |
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wrap.addEventListener( 'keydown', function (e) { |
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if ( e.key === 'ArrowLeft' ) { clearInterval(timer); prev(); startAutoplay(); } |
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if ( e.key === 'ArrowRight' ) { clearInterval(timer); next(); startAutoplay(); } |
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} ); |
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|
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/* Touch swipe */ |
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let touchStartX = 0; |
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wrap.addEventListener( 'touchstart', e => { touchStartX = e.changedTouches[0].clientX; }, { passive: true } ); |
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wrap.addEventListener( 'touchend', e => { |
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const dx = e.changedTouches[0].clientX - touchStartX; |
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if ( Math.abs(dx) > 40 ) { clearInterval(timer); ( dx < 0 ? next : prev )(); startAutoplay(); } |
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}, { passive: true } ); |
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|
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function startAutoplay() { |
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if ( ! autoplay ) return; |
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clearInterval( timer ); |
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timer = setInterval( next, speed ); |
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} |
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|
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if ( pauseHover ) { |
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wrap.addEventListener( 'mouseenter', () => clearInterval(timer) ); |
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wrap.addEventListener( 'mouseleave', startAutoplay ); |
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} |
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|
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startAutoplay(); |
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} |
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|
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function init() { |
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document.querySelectorAll( '.bktc-wrap[data-autoplay]' ).forEach( initCarousel ); |
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} |
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|
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if ( document.readyState === 'loading' ) { |
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document.addEventListener( 'DOMContentLoaded', init ); |
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} else { |
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init(); |
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} |
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} )(); |
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