I would go as far as saying that this should be integrated in modules/resize/resize.js as a replacement for window's resize event when ResizeObserver is available. It leverages events from the MutationObserver module (observer.js) to trigger onResize core handler. Use with e() and updateOnWindowResize: false. If (!('ResizeObserver' in window)) return Ĭonst observer = new ResizeObserver((entries) => ) Ĭbug(``) This clearly breaks proper slide sizing which uses Swiper's internal methods updateSize() and updateSlides().Ĭbug(` container=`, container) async "below-the-fold" CSS is loaded and resizes.swiper-container becomes visibile and swiper is initialized via IntersectionObserver browser loads swiper via ES modules (deferred).swiper loaded "below-the-fold", then lazy initialize it using IntersectionObserver as even async styles are likely to have been loaded at this point. We can add an event listener to the body element which fires every time when the window size is resized. We can listen to the resize event in two ways: Using onresize event Using Resize Observer API Method 1: Using resize event. swiper-container's style should already be loaded and therefore there would be no problem. The window resize event occurs whenever the size of the browser window gets changed. One reason to NOT implement the ResizeObserver API would be that if the slider is shown above-the-fold, then all. async CSS is loaded that changes the size of. browser loads critical CSS and performs first paint.īrowser support is now more widespread and this would really help in cases where CSS is loaded asynchronously ("non-critical"). Use it like any other on or bind-event handler, except that you can pass an extra parameter as a last: $(window).I'd like to suggest implementing the ResizeObserver API as proposed years ago in #2068. Return methods.apply(this, isNaN(delay) ? arguments : args) You can use setTimeout() and clearTimeout() in conjunction with jQuery.data: $(window).resize(function()
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