ionic-angular/components/slides/swiper/swiper-a11y.js

import { CLS } from './swiper-utils';
export function initA11y(s, plt) {
    var unregs = [];
    s._liveRegion = plt.doc().createElement('span');
    s._liveRegion.className = CLS.notification;
    s._liveRegion.setAttribute('aria-live', 'assertive');
    s._liveRegion.setAttribute('aria-atomic', 'true');
    s.container.appendChild(s._liveRegion);
    // Setup accessibility
    if (s.nextButton) {
        makeFocusable(s.nextButton);
        addRole(s.nextButton, 'button');
        addLabel(s.nextButton, s.nextSlideMessage);
        plt.registerListener(s.nextButton, 'keydown', function (ev) {
            onEnterKey(s, ev);
        }, { zone: false }, unregs);
    }
    if (s.prevButton) {
        makeFocusable(s.prevButton);
        addRole(s.prevButton, 'button');
        addLabel(s.prevButton, s.prevSlideMessage);
        plt.registerListener(s.prevButton, 'keydown', function (ev) {
            onEnterKey(s, ev);
        }, { zone: false }, unregs);
    }
    return function () {
        unregs.forEach(function (unreg) {
            unreg();
        });
        unregs = null;
        if (s._liveRegion) {
            s._liveRegion.parentElement.removeChild(s._liveRegion);
        }
    };
}
export function makeFocusable(ele) {
    ele.setAttribute('tabIndex', '0');
}
export function addRole(ele, role) {
    ele.setAttribute('role', role);
}
export function addLabel(ele, label) {
    ele.setAttribute('aria-label', label);
}
export function ariaDisable(ele, isDisabled) {
    if (isDisabled) {
        ele.setAttribute('aria-disabled', 'true');
    }
    else if (ele.hasAttribute('aria-disabled')) {
        ele.removeAttribute('aria-disabled');
    }
}
export function ariaHidden(ele, isHidden) {
    if (isHidden) {
        ele.setAttribute('aria-hidden', 'true');
    }
    else if (ele.hasAttribute('aria-hidden')) {
        ele.removeAttribute('aria-hidden');
    }
}
function onEnterKey(_, __) {
    // if (event.keyCode !== 13) return;
    // const target: HTMLElement = <any>event.target;
    // if (target.classList.contains(PARAMS.nextButtonClass)) {
    //   if (s.isEnd) {
    //     notify(s, PARAMS.lastSlideMessage);
    //   } else {
    //     notify(s, PARAMS.nextSlideMessage);
    //   }
    // } else if (target.classList.contains(PARAMS.prevButtonClass)) {
    //   if (s.isBeginning) {
    //     notify(s, PARAMS.firstSlideMessage);
    //   } else {
    //     notify(s, PARAMS.prevSlideMessage);
    //   }
    // }
}
// function notify(s: Slides, message: string) {
//   var notification = s._liveRegion;
//   if (notification) {
//     notification.innerHTML = message || '';
//   }
// }
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