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38 lines
1.4 KiB
Plaintext
38 lines
1.4 KiB
Plaintext
import { isDragActive } from './drag/state/is-active.mjs';
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import { setupGesture } from './utils/setup.mjs';
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function isValidHover(event) {
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return !(event.pointerType === "touch" || isDragActive());
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}
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/**
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* Create a hover gesture. hover() is different to .addEventListener("pointerenter")
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* in that it has an easier syntax, filters out polyfilled touch events, interoperates
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* with drag gestures, and automatically removes the "pointerennd" event listener when the hover ends.
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*
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* @public
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*/
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function hover(elementOrSelector, onHoverStart, options = {}) {
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const [elements, eventOptions, cancel] = setupGesture(elementOrSelector, options);
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const onPointerEnter = (enterEvent) => {
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if (!isValidHover(enterEvent))
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return;
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const { target } = enterEvent;
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const onHoverEnd = onHoverStart(target, enterEvent);
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if (typeof onHoverEnd !== "function" || !target)
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return;
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const onPointerLeave = (leaveEvent) => {
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if (!isValidHover(leaveEvent))
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return;
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onHoverEnd(leaveEvent);
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target.removeEventListener("pointerleave", onPointerLeave);
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};
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target.addEventListener("pointerleave", onPointerLeave, eventOptions);
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};
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elements.forEach((element) => {
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element.addEventListener("pointerenter", onPointerEnter, eventOptions);
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});
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return cancel;
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}
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export { hover };
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