ionic-angular
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A powerful framework for building mobile and progressive web apps with JavaScript and Angular
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JavaScript
import { maxTranslate, minTranslate, removeClass, updateSlidesOffset, CLS } from './swiper-utils';
/**
* @param {?} s
* @param {?=} translate
* @return {?}
*/
export function updateProgress(s, translate) {
if (typeof translate === 'undefined') {
translate = s._translate || 0;
}
var /** @type {?} */ translatesDiff = maxTranslate(s) - minTranslate(s);
var /** @type {?} */ wasBeginning = s._isBeginning;
var /** @type {?} */ wasEnd = s._isEnd;
if (translatesDiff === 0) {
s.progress = 0;
s._isBeginning = s._isEnd = true;
}
else {
s.progress = (translate - minTranslate(s)) / (translatesDiff);
s._isBeginning = s.progress <= 0;
s._isEnd = s.progress >= 1;
}
s._zone.run(function () {
if (s._isBeginning && !wasBeginning) {
s.ionSlideReachStart.emit();
}
if (s._isEnd && !wasEnd) {
s.ionSlideReachEnd.emit();
}
if (s.watchSlidesProgress) {
updateSlidesProgress(s, translate);
}
s.ionSlideProgress.emit(s.progress);
});
}
/**
* @param {?} s
* @param {?} translate
* @return {?}
*/
function updateSlidesProgress(s, translate) {
if (typeof translate === 'undefined') {
translate = s._translate || 0;
}
if (s._slides.length === 0)
return;
if (typeof s._slides[0].swiperSlideOffset === 'undefined') {
updateSlidesOffset(s);
}
var /** @type {?} */ offsetCenter = -translate;
if (s._rtl)
offsetCenter = translate;
// Visible Slides
removeClass(s._slides, CLS.slideVisible);
for (var /** @type {?} */ i = 0; i < s._slides.length; i++) {
var /** @type {?} */ slide = s._slides[i];
var /** @type {?} */ slideProgress = (offsetCenter + (s.centeredSlides ? minTranslate(s) : 0) - slide.swiperSlideOffset) / (slide.swiperSlideSize + s.spaceBetween);
if (s.watchSlidesVisibility) {
var /** @type {?} */ slideBefore = -(offsetCenter - slide.swiperSlideOffset);
var /** @type {?} */ slideAfter = slideBefore + s._slidesSizesGrid[i];
var /** @type {?} */ isVisible = (slideBefore >= 0 && slideBefore < s._renderedSize) ||
(slideAfter > 0 && slideAfter <= s._renderedSize) ||
(slideBefore <= 0 && slideAfter >= s._renderedSize);
if (isVisible) {
s._slides[i].classList.add(CLS.slideVisible);
}
}
slide.progress = s._rtl ? -slideProgress : slideProgress;
}
}
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