First upload
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import { getWindow } from 'ssr-window';
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import { extend } from '../../utils/utils';
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var supportsResizeObserver = function supportsResizeObserver() {
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var window = getWindow();
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return typeof window.ResizeObserver !== 'undefined';
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};
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export default {
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name: 'resize',
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create: function create() {
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var swiper = this;
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extend(swiper, {
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resize: {
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observer: null,
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createObserver: function createObserver() {
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if (!swiper || swiper.destroyed || !swiper.initialized) return;
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swiper.resize.observer = new ResizeObserver(function (entries) {
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var width = swiper.width,
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height = swiper.height;
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var newWidth = width;
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var newHeight = height;
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entries.forEach(function (_ref) {
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var contentBoxSize = _ref.contentBoxSize,
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contentRect = _ref.contentRect,
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target = _ref.target;
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if (target && target !== swiper.el) return;
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newWidth = contentRect ? contentRect.width : (contentBoxSize[0] || contentBoxSize).inlineSize;
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newHeight = contentRect ? contentRect.height : (contentBoxSize[0] || contentBoxSize).blockSize;
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});
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if (newWidth !== width || newHeight !== height) {
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swiper.resize.resizeHandler();
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}
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});
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swiper.resize.observer.observe(swiper.el);
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},
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removeObserver: function removeObserver() {
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if (swiper.resize.observer && swiper.resize.observer.unobserve && swiper.el) {
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swiper.resize.observer.unobserve(swiper.el);
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swiper.resize.observer = null;
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}
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},
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resizeHandler: function resizeHandler() {
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if (!swiper || swiper.destroyed || !swiper.initialized) return;
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swiper.emit('beforeResize');
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swiper.emit('resize');
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},
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orientationChangeHandler: function orientationChangeHandler() {
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if (!swiper || swiper.destroyed || !swiper.initialized) return;
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swiper.emit('orientationchange');
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}
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}
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});
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},
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on: {
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init: function init(swiper) {
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var window = getWindow();
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if (swiper.params.resizeObserver && supportsResizeObserver()) {
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swiper.resize.createObserver();
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return;
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} // Emit resize
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window.addEventListener('resize', swiper.resize.resizeHandler); // Emit orientationchange
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window.addEventListener('orientationchange', swiper.resize.orientationChangeHandler);
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},
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destroy: function destroy(swiper) {
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var window = getWindow();
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swiper.resize.removeObserver();
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window.removeEventListener('resize', swiper.resize.resizeHandler);
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window.removeEventListener('orientationchange', swiper.resize.orientationChangeHandler);
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}
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}
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};
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