react-native-reanimated/lib/module/layoutReanimation/defaultAnimations/Pinwheel.js

More powerful alternative to Animated library for React Native.

'use strict';

import { ComplexAnimationBuilder } from "../animationBuilder/index.js";
import { animateTransformToValues, pickTransformValues } from "./utils.js";

/**
 * Entry with change in rotation, scale, and opacity. You can modify the
 * behavior by chaining methods like `.springify()` or `.duration(500)`.
 *
 * You pass it to the `entering` prop on [an Animated
 * component](https://docs.swmansion.com/react-native-reanimated/docs/fundamentals/glossary#animated-component).
 *
 * @see https://docs.swmansion.com/react-native-reanimated/docs/layout-animations/entering-exiting-animations#pinwheel
 */
export class PinwheelIn extends ComplexAnimationBuilder {
  static presetName = 'PinwheelIn';
  static createInstance() {
    return new PinwheelIn();
  }
  build = () => {
    const delayFunction = this.getDelayFunction();
    const animationAndConfig = this.getAnimationAndConfig();
    const [animation, config] = animationAndConfig;
    const delay = this.getDelay();
    const callback = this.callbackV;
    const initialValues = this.initialValues;
    const targetValues = this.targetValues;
    return () => {
      'worklet';

      return {
        animations: {
          opacity: delayFunction(delay, animation(targetValues?.opacity ?? 1, config)),
          transform: animateTransformToValues([{
            scale: 1
          }, {
            rotate: '0rad'
          }], targetValues, animationAndConfig, delayFunction, delay)
        },
        initialValues: {
          opacity: initialValues?.opacity ?? 0,
          transform: pickTransformValues([{
            scale: 0
          }, {
            rotate: '5rad'
          }], initialValues)
        },
        callback
      };
    };
  };
}

/**
 * Exit with change in rotation, scale, and opacity. You can modify the behavior
 * by chaining methods like `.springify()` or `.duration(500)`.
 *
 * You pass it to the `exiting` prop on [an Animated
 * component](https://docs.swmansion.com/react-native-reanimated/docs/fundamentals/glossary#animated-component).
 *
 * @see https://docs.swmansion.com/react-native-reanimated/docs/layout-animations/entering-exiting-animations#pinwheel
 */
export class PinwheelOut extends ComplexAnimationBuilder {
  static presetName = 'PinwheelOut';
  static createInstance() {
    return new PinwheelOut();
  }
  build = () => {
    const delayFunction = this.getDelayFunction();
    const animationAndConfig = this.getAnimationAndConfig();
    const [animation, config] = animationAndConfig;
    const delay = this.getDelay();
    const callback = this.callbackV;
    const initialValues = this.initialValues;
    const targetValues = this.targetValues;
    return () => {
      'worklet';

      return {
        animations: {
          opacity: delayFunction(delay, animation(targetValues?.opacity ?? 0, config)),
          transform: animateTransformToValues([{
            scale: 0
          }, {
            rotate: '5rad'
          }], targetValues, animationAndConfig, delayFunction, delay)
        },
        initialValues: {
          opacity: initialValues?.opacity ?? 1,
          transform: pickTransformValues([{
            scale: 1
          }, {
            rotate: '0rad'
          }], initialValues)
        },
        callback
      };
    };
  };
}
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