38 lines
1.0 KiB
JavaScript
38 lines
1.0 KiB
JavaScript
import normalizeWheel from 'normalize-wheel-es';
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const SCOPE = "_Mousewheel";
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const mousewheel = function(element, callback) {
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if (element && element.addEventListener) {
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removeWheelHandler(element);
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const fn = function(event) {
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const normalized = normalizeWheel(event);
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callback && Reflect.apply(callback, this, [event, normalized]);
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};
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element[SCOPE] = { wheelHandler: fn };
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element.addEventListener("wheel", fn, { passive: true });
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}
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};
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const removeWheelHandler = (element) => {
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var _a;
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if ((_a = element[SCOPE]) == null ? void 0 : _a.wheelHandler) {
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element.removeEventListener("wheel", element[SCOPE].wheelHandler);
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element[SCOPE] = null;
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}
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};
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const Mousewheel = {
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beforeMount(el, binding) {
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mousewheel(el, binding.value);
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},
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unmounted(el) {
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removeWheelHandler(el);
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},
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updated(el, binding) {
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if (binding.value !== binding.oldValue) {
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mousewheel(el, binding.value);
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}
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}
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};
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export { SCOPE, Mousewheel as default };
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//# sourceMappingURL=index.mjs.map
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