import Utils from '../../../utils/utils';
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export default function (translate) {
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const swiper = this;
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if (typeof translate === 'undefined') {
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const multiplier = swiper.rtlTranslate ? -1 : 1;
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// eslint-disable-next-line
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translate = (swiper && swiper.translate && (swiper.translate * multiplier)) || 0;
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}
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const params = swiper.params;
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const translatesDiff = swiper.maxTranslate() - swiper.minTranslate();
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let { progress, isBeginning, isEnd } = swiper;
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const wasBeginning = isBeginning;
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const wasEnd = isEnd;
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if (translatesDiff === 0) {
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progress = 0;
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isBeginning = true;
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isEnd = true;
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} else {
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progress = (translate - swiper.minTranslate()) / (translatesDiff);
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isBeginning = progress <= 0;
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isEnd = progress >= 1;
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}
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Utils.extend(swiper, {
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progress,
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isBeginning,
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isEnd,
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});
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if (params.watchSlidesProgress || params.watchSlidesVisibility || (params.centeredSlides && params.autoHeight)) swiper.updateSlidesProgress(translate);
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if (isBeginning && !wasBeginning) {
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swiper.emit('reachBeginning toEdge');
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}
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if (isEnd && !wasEnd) {
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swiper.emit('reachEnd toEdge');
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}
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if ((wasBeginning && !isBeginning) || (wasEnd && !isEnd)) {
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swiper.emit('fromEdge');
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}
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swiper.emit('progress', progress);
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}
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