react-scroll-to-bottom-updated/lib/SpineTo.js

React container that will auto scroll to bottom

"use strict";

var _Object$defineProperty = require("@babel/runtime-corejs3/core-js-stable/object/define-property");

var _interopRequireDefault = require("@babel/runtime-corejs3/helpers/interopRequireDefault");

_Object$defineProperty(exports, "__esModule", {
  value: true
});

exports["default"] = void 0;

require("core-js/modules/es.function.name.js");

var _sign = _interopRequireDefault(require("@babel/runtime-corejs3/core-js-stable/math/sign"));

var _now = _interopRequireDefault(require("@babel/runtime-corejs3/core-js-stable/date/now"));

var _propTypes = _interopRequireDefault(require("prop-types"));

var _react = require("react");

/* eslint no-magic-numbers: ["error", { "ignore": [0, 1, 1.5, 5] }] */
function squareStepper(current, to) {
  var sign = (0, _sign["default"])(to - current);
  var step = Math.sqrt(Math.abs(to - current));
  var next = current + step * sign;

  if (sign > 0) {
    return Math.min(to, next);
  }

  return Math.max(to, next);
}

function step(from, to, stepper, index) {
  var next = from;

  for (var i = 0; i < index; i++) {
    next = stepper(next, to);
  }

  return next;
}

var SpineTo = function SpineTo(_ref) {
  var name = _ref.name,
      onEnd = _ref.onEnd,
      target = _ref.target,
      value = _ref.value;
  var animator = (0, _react.useRef)();
  var animate = (0, _react.useCallback)(function (name, from, to, index) {
    var start = arguments.length > 4 && arguments[4] !== undefined ? arguments[4] : (0, _now["default"])();

    if (to === '100%' || typeof to === 'number') {
      cancelAnimationFrame(animator.current);
      animator.current = requestAnimationFrame(function () {
        if (target) {
          var toNumber = to === '100%' ? target.scrollHeight - target.offsetHeight : to;
          var nextValue = step(from, toNumber, squareStepper, ((0, _now["default"])() - start) / 5);

          if (Math.abs(toNumber - nextValue) < 1.5) {
            nextValue = toNumber;
          }

          target[name] = nextValue;

          if (toNumber === nextValue) {
            onEnd && onEnd(true);
          } else {
            animate(name, from, to, index + 1, start);
          }
        }
      });
    }
  }, [animator, onEnd, target]);
  var handleCancelAnimation = (0, _react.useCallback)(function () {
    cancelAnimationFrame(animator.current);
    onEnd && onEnd(false);
  }, [onEnd]);
  (0, _react.useLayoutEffect)(function () {
    animate(name, target[name], value, 1);

    if (target) {
      target.addEventListener('pointerdown', handleCancelAnimation, {
        passive: true
      });
      target.addEventListener('wheel', handleCancelAnimation, {
        passive: true
      });
      return function () {
        target.removeEventListener('pointerdown', handleCancelAnimation);
        target.removeEventListener('wheel', handleCancelAnimation);
        cancelAnimationFrame(animator.current);
      };
    }

    return function () {
      return cancelAnimationFrame(animator.current);
    };
  }, [animate, animator, handleCancelAnimation, name, target, value]);
  return false;
};

SpineTo.propTypes = {
  name: _propTypes["default"].string.isRequired,
  onEnd: _propTypes["default"].func,
  target: _propTypes["default"].any.isRequired,
  value: _propTypes["default"].oneOfType([_propTypes["default"].number, _propTypes["default"].oneOf(['100%'])]).isRequired
};
var _default = SpineTo;
exports["default"] = _default;
//# sourceMappingURL=data:application/json;charset=utf-8;base64,{"version":3,"sources":["../src/SpineTo.js"],"names":["squareStepper","current","to","sign","step","Math","sqrt","abs","next","min","max","from","stepper","index","i","SpineTo","name","onEnd","target","value","animator","animate","start","cancelAnimationFrame","requestAnimationFrame","toNumber","scrollHeight","offsetHeight","nextValue","handleCancelAnimation","addEventListener","passive","removeEventListener","propTypes","PropTypes","string","isRequired","func","any","oneOfType","number","oneOf"],"mappings":";;;;;;;;;;;;;;;;;;AAEA;;AACA;;AAHA;AAKA,SAASA,aAAT,CAAuBC,OAAvB,EAAgCC,EAAhC,EAAoC;AAClC,MAAMC,IAAI,GAAG,sBAAUD,EAAE,GAAGD,OAAf,CAAb;AACA,MAAMG,IAAI,GAAGC,IAAI,CAACC,IAAL,CAAUD,IAAI,CAACE,GAAL,CAASL,EAAE,GAAGD,OAAd,CAAV,CAAb;AACA,MAAMO,IAAI,GAAGP,OAAO,GAAGG,IAAI,GAAGD,IAA9B;;AAEA,MAAIA,IAAI,GAAG,CAAX,EAAc;AACZ,WAAOE,IAAI,CAACI,GAAL,CAASP,EAAT,EAAaM,IAAb,CAAP;AACD;;AAED,SAAOH,IAAI,CAACK,GAAL,CAASR,EAAT,EAAaM,IAAb,CAAP;AACD;;AAED,SAASJ,IAAT,CAAcO,IAAd,EAAoBT,EAApB,EAAwBU,OAAxB,EAAiCC,KAAjC,EAAwC;AACtC,MAAIL,IAAI,GAAGG,IAAX;;AAEA,OAAK,IAAIG,CAAC,GAAG,CAAb,EAAgBA,CAAC,GAAGD,KAApB,EAA2BC,CAAC,EAA5B,EAAgC;AAC9BN,IAAAA,IAAI,GAAGI,OAAO,CAACJ,IAAD,EAAON,EAAP,CAAd;AACD;;AAED,SAAOM,IAAP;AACD;;AAED,IAAMO,OAAO,GAAG,SAAVA,OAAU,OAAoC;AAAA,MAAjCC,IAAiC,QAAjCA,IAAiC;AAAA,MAA3BC,KAA2B,QAA3BA,KAA2B;AAAA,MAApBC,MAAoB,QAApBA,MAAoB;AAAA,MAAZC,KAAY,QAAZA,KAAY;AAClD,MAAMC,QAAQ,GAAG,oBAAjB;AAEA,MAAMC,OAAO,GAAG,wBACd,UAACL,IAAD,EAAOL,IAAP,EAAaT,EAAb,EAAiBW,KAAjB,EAA+C;AAAA,QAAvBS,KAAuB,uEAAf,sBAAe;;AAC7C,QAAIpB,EAAE,KAAK,MAAP,IAAiB,OAAOA,EAAP,KAAc,QAAnC,EAA6C;AAC3CqB,MAAAA,oBAAoB,CAACH,QAAQ,CAACnB,OAAV,CAApB;AAEAmB,MAAAA,QAAQ,CAACnB,OAAT,GAAmBuB,qBAAqB,CAAC,YAAM;AAC7C,YAAIN,MAAJ,EAAY;AACV,cAAMO,QAAQ,GAAGvB,EAAE,KAAK,MAAP,GAAgBgB,MAAM,CAACQ,YAAP,GAAsBR,MAAM,CAACS,YAA7C,GAA4DzB,EAA7E;AACA,cAAI0B,SAAS,GAAGxB,IAAI,CAACO,IAAD,EAAOc,QAAP,EAAiBzB,aAAjB,EAAgC,CAAC,yBAAasB,KAAd,IAAuB,CAAvD,CAApB;;AAEA,cAAIjB,IAAI,CAACE,GAAL,CAASkB,QAAQ,GAAGG,SAApB,IAAiC,GAArC,EAA0C;AACxCA,YAAAA,SAAS,GAAGH,QAAZ;AACD;;AAEDP,UAAAA,MAAM,CAACF,IAAD,CAAN,GAAeY,SAAf;;AAEA,cAAIH,QAAQ,KAAKG,SAAjB,EAA4B;AAC1BX,YAAAA,KAAK,IAAIA,KAAK,CAAC,IAAD,CAAd;AACD,WAFD,MAEO;AACLI,YAAAA,OAAO,CAACL,IAAD,EAAOL,IAAP,EAAaT,EAAb,EAAiBW,KAAK,GAAG,CAAzB,EAA4BS,KAA5B,CAAP;AACD;AACF;AACF,OAjBuC,CAAxC;AAkBD;AACF,GAxBa,EAyBd,CAACF,QAAD,EAAWH,KAAX,EAAkBC,MAAlB,CAzBc,CAAhB;AA4BA,MAAMW,qBAAqB,GAAG,wBAAY,YAAM;AAC9CN,IAAAA,oBAAoB,CAACH,QAAQ,CAACnB,OAAV,CAApB;AACAgB,IAAAA,KAAK,IAAIA,KAAK,CAAC,KAAD,CAAd;AACD,GAH6B,EAG3B,CAACA,KAAD,CAH2B,CAA9B;AAKA,8BAAgB,YAAM;AACpBI,IAAAA,OAAO,CAACL,IAAD,EAAOE,MAAM,CAACF,IAAD,CAAb,EAAqBG,KAArB,EAA4B,CAA5B,CAAP;;AAEA,QAAID,MAAJ,EAAY;AACVA,MAAAA,MAAM,CAACY,gBAAP,CAAwB,aAAxB,EAAuCD,qBAAvC,EAA8D;AAAEE,QAAAA,OAAO,EAAE;AAAX,OAA9D;AACAb,MAAAA,MAAM,CAACY,gBAAP,CAAwB,OAAxB,EAAiCD,qBAAjC,EAAwD;AAAEE,QAAAA,OAAO,EAAE;AAAX,OAAxD;AAEA,aAAO,YAAM;AACXb,QAAAA,MAAM,CAACc,mBAAP,CAA2B,aAA3B,EAA0CH,qBAA1C;AACAX,QAAAA,MAAM,CAACc,mBAAP,CAA2B,OAA3B,EAAoCH,qBAApC;AACAN,QAAAA,oBAAoB,CAACH,QAAQ,CAACnB,OAAV,CAApB;AACD,OAJD;AAKD;;AAED,WAAO;AAAA,aAAMsB,oBAAoB,CAACH,QAAQ,CAACnB,OAAV,CAA1B;AAAA,KAAP;AACD,GAfD,EAeG,CAACoB,OAAD,EAAUD,QAAV,EAAoBS,qBAApB,EAA2Cb,IAA3C,EAAiDE,MAAjD,EAAyDC,KAAzD,CAfH;AAiBA,SAAO,KAAP;AACD,CAtDD;;AAwDAJ,OAAO,CAACkB,SAAR,GAAoB;AAClBjB,EAAAA,IAAI,EAAEkB,sBAAUC,MAAV,CAAiBC,UADL;AAElBnB,EAAAA,KAAK,EAAEiB,sBAAUG,IAFC;AAGlBnB,EAAAA,MAAM,EAAEgB,sBAAUI,GAAV,CAAcF,UAHJ;AAIlBjB,EAAAA,KAAK,EAAEe,sBAAUK,SAAV,CAAoB,CAACL,sBAAUM,MAAX,EAAmBN,sBAAUO,KAAV,CAAgB,CAAC,MAAD,CAAhB,CAAnB,CAApB,EAAmEL;AAJxD,CAApB;eAOerB,O","sourcesContent":["/* eslint no-magic-numbers: [\"error\", { \"ignore\": [0, 1, 1.5, 5] }] */\n\nimport PropTypes from 'prop-types';\nimport { useCallback, useLayoutEffect, useRef } from 'react';\n\nfunction squareStepper(current, to) {\n  const sign = Math.sign(to - current);\n  const step = Math.sqrt(Math.abs(to - current));\n  const next = current + step * sign;\n\n  if (sign > 0) {\n    return Math.min(to, next);\n  }\n\n  return Math.max(to, next);\n}\n\nfunction step(from, to, stepper, index) {\n  let next = from;\n\n  for (let i = 0; i < index; i++) {\n    next = stepper(next, to);\n  }\n\n  return next;\n}\n\nconst SpineTo = ({ name, onEnd, target, value }) => {\n  const animator = useRef();\n\n  const animate = useCallback(\n    (name, from, to, index, start = Date.now()) => {\n      if (to === '100%' || typeof to === 'number') {\n        cancelAnimationFrame(animator.current);\n\n        animator.current = requestAnimationFrame(() => {\n          if (target) {\n            const toNumber = to === '100%' ? target.scrollHeight - target.offsetHeight : to;\n            let nextValue = step(from, toNumber, squareStepper, (Date.now() - start) / 5);\n\n            if (Math.abs(toNumber - nextValue) < 1.5) {\n              nextValue = toNumber;\n            }\n\n            target[name] = nextValue;\n\n            if (toNumber === nextValue) {\n              onEnd && onEnd(true);\n            } else {\n              animate(name, from, to, index + 1, start);\n            }\n          }\n        });\n      }\n    },\n    [animator, onEnd, target]\n  );\n\n  const handleCancelAnimation = useCallback(() => {\n    cancelAnimationFrame(animator.current);\n    onEnd && onEnd(false);\n  }, [onEnd]);\n\n  useLayoutEffect(() => {\n    animate(name, target[name], value, 1);\n\n    if (target) {\n      target.addEventListener('pointerdown', handleCancelAnimation, { passive: true });\n      target.addEventListener('wheel', handleCancelAnimation, { passive: true });\n\n      return () => {\n        target.removeEventListener('pointerdown', handleCancelAnimation);\n        target.removeEventListener('wheel', handleCancelAnimation);\n        cancelAnimationFrame(animator.current);\n      };\n    }\n\n    return () => cancelAnimationFrame(animator.current);\n  }, [animate, animator, handleCancelAnimation, name, target, value]);\n\n  return false;\n};\n\nSpineTo.propTypes = {\n  name: PropTypes.string.isRequired,\n  onEnd: PropTypes.func,\n  target: PropTypes.any.isRequired,\n  value: PropTypes.oneOfType([PropTypes.number, PropTypes.oneOf(['100%'])]).isRequired\n};\n\nexport default SpineTo;\n"]}