react-native-gesture-handler/lib/module/handlers/gestures/hoverGesture.js

Declarative API exposing native platform touch and gesture system to React Native

"use strict";

import { ContinousBaseGesture } from './gesture';
export let HoverEffect = /*#__PURE__*/function (HoverEffect) {
  HoverEffect[HoverEffect["NONE"] = 0] = "NONE";
  HoverEffect[HoverEffect["LIFT"] = 1] = "LIFT";
  HoverEffect[HoverEffect["HIGHLIGHT"] = 2] = "HIGHLIGHT";
  return HoverEffect;
}({});
export const hoverGestureHandlerProps = ['hoverEffect'];
function changeEventCalculator(current, previous) {
  'worklet';

  let changePayload;
  if (previous === undefined) {
    changePayload = {
      changeX: current.x,
      changeY: current.y
    };
  } else {
    changePayload = {
      changeX: current.x - previous.x,
      changeY: current.y - previous.y
    };
  }
  return {
    ...current,
    ...changePayload
  };
}
export class HoverGesture extends ContinousBaseGesture {
  config = {};
  constructor() {
    super();
    this.handlerName = 'HoverGestureHandler';
  }

  /**
   * #### iOS only
   * Sets the visual hover effect.
   */
  effect(effect) {
    this.config.hoverEffect = effect;
    return this;
  }
  onChange(callback) {
    // @ts-ignore TS being overprotective, HoverGestureHandlerEventPayload is Record
    this.handlers.changeEventCalculator = changeEventCalculator;
    return super.onChange(callback);
  }
}
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