tav-ui
Version:
40 lines (37 loc) • 1.18 kB
JavaScript
import ResizeObserver from 'resize-observer-polyfill';
const isServer = typeof window === "undefined";
function resizeHandler(entries) {
for (const entry of entries) {
const listeners = entry.target.__resizeListeners__ || [];
if (listeners.length) {
listeners.forEach((fn) => {
fn();
});
}
}
}
function addResizeListener(element, fn) {
if (isServer)
return;
if (!element.__resizeListeners__) {
element.__resizeListeners__ = [];
element.__ro__ = new ResizeObserver(resizeHandler);
element.__ro__.observe(element);
}
element.__resizeListeners__.push(fn);
}
function removeResizeListener(element, fn) {
if (!element || !element.__resizeListeners__)
return;
element.__resizeListeners__.splice(element.__resizeListeners__.indexOf(fn), 1);
if (!element.__resizeListeners__.length)
element.__ro__.disconnect();
}
function triggerWindowResize() {
const event = document.createEvent("HTMLEvents");
event.initEvent("resize", true, true);
event.eventType = "message";
window.dispatchEvent(event);
}
export { addResizeListener, removeResizeListener, triggerWindowResize };
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