web.resize.ResizeObserver — clojure-interop/cljs-web-api 1.0.10

The ResizeObserver interface reports changes to the dimensions an web.Element's content or border box, or the bounding box an web.svg.SVGElement.

constructor cljs

(constructor & args)

Constructor.

The ResizeObserver constructor creates a new web.resize.ResizeObserver object, which can be used to report changes to the content or border box of an web.Element or the bounding box of an web.svg.SVGElement.

callback The function called whenever an observed resize occurs. The function is called with two parameters:

entries An array of web.resize.ResizeObserverEntry objects that can be used to access the new dimensions of the element after each change. observer A reference to the ResizeObserver itself, so it will definitely be accessible from inside the callback, should you need it. This could be used for example to automatically unobserve the observer when a certain condition is reached, but you can omit it if you don't need it.

The callback will generally follow a pattern along the lines of:

function(entries, observer) { for (let entry of entries) { // Do something to each entry // and possibly something to the observer itself } }

See also: https://developer.mozilla.org/en-US/docs/Web/API/ResizeObserver/ResizeObserver

disconnect cljs

(disconnect this)

Method.

The disconnect() method of the web.resize.ResizeObserver interface all observed web.Element or web.svg.SVGElement targets.

resizeObserver.disconnect();

See also: https://developer.mozilla.org/en-US/docs/Web/API/ResizeObserver/disconnect

observe cljs

(observe this target options)

Method.

The observe() method of the web.resize.ResizeObserver interface observing the specified web.Element or web.svg.SVGElement.

resizeObserver.observe(target, options);

See also: https://developer.mozilla.org/en-US/docs/Web/API/ResizeObserver/observe

unobserve cljs

(unobserve this target)

Method.

The unobserve() method of the web.resize.ResizeObserver interface the observing of a specified web.Element or web.svg.SVGElement.

void unobserve(target);

See also: https://developer.mozilla.org/en-US/docs/Web/API/ResizeObserver/unobserve