react-animated-numbers
Version:
Library showing animation of number changes in react.js
113 lines (112 loc) • 5.82 kB
JavaScript
;
var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
if (k2 === undefined) k2 = k;
var desc = Object.getOwnPropertyDescriptor(m, k);
if (!desc || ("get" in desc ? !m.__esModule : desc.writable || desc.configurable)) {
desc = { enumerable: true, get: function() { return m[k]; } };
}
Object.defineProperty(o, k2, desc);
}) : (function(o, m, k, k2) {
if (k2 === undefined) k2 = k;
o[k2] = m[k];
}));
var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {
Object.defineProperty(o, "default", { enumerable: true, value: v });
}) : function(o, v) {
o["default"] = v;
});
var __importStar = (this && this.__importStar) || (function () {
var ownKeys = function(o) {
ownKeys = Object.getOwnPropertyNames || function (o) {
var ar = [];
for (var k in o) if (Object.prototype.hasOwnProperty.call(o, k)) ar[ar.length] = k;
return ar;
};
return ownKeys(o);
};
return function (mod) {
if (mod && mod.__esModule) return mod;
var result = {};
if (mod != null) for (var k = ownKeys(mod), i = 0; i < k.length; i++) if (k[i] !== "default") __createBinding(result, mod, k[i]);
__setModuleDefault(result, mod);
return result;
};
})();
Object.defineProperty(exports, "__esModule", { value: true });
const react_1 = __importStar(require("react"));
const react_2 = require("motion/react");
const generateRandomSequence = (target, length = 40) => {
const base = Array.from({ length: length - 1 }, () => Math.floor(Math.random() * 10));
return [...base, target];
};
const AnimatedNumber = ({ className, animateToNumber, fontStyle, transitions, useThousandsSeparator = false, locale = "en-US", }) => {
const wrapperRef = (0, react_1.useRef)(null);
const numberRef = (0, react_1.useRef)(null);
const isInView = (0, react_2.useInView)(wrapperRef, { once: false });
const controls = (0, react_2.useAnimation)();
const [numberHeight, setNumberHeight] = (0, react_1.useState)(0);
const [numberWidth, setNumberWidth] = (0, react_1.useState)(0);
const [randomSequences, setRandomSequences] = (0, react_1.useState)([]);
const animateNumberStr = useThousandsSeparator
? Math.abs(animateToNumber).toLocaleString(locale)
: String(Math.abs(animateToNumber));
(0, react_1.useEffect)(() => {
const animateDigits = Array.from(animateNumberStr).map((char) => /\d/.test(char) ? Number(char) : char);
const newSeq = animateDigits.map((digit) => typeof digit === "number" ? generateRandomSequence(digit) : digit);
setRandomSequences(newSeq);
}, [animateNumberStr]);
(0, react_1.useEffect)(() => {
if (!numberRef.current)
return;
const observer = new ResizeObserver((entries) => {
for (const entry of entries) {
const { height, width } = entry.contentRect;
setNumberHeight(height);
setNumberWidth(width);
}
});
observer.observe(numberRef.current);
return () => observer.disconnect();
}, [fontStyle]);
(0, react_1.useEffect)(() => {
if (isInView) {
controls.start("visible");
}
}, [controls, isInView, randomSequences]);
return (react_1.default.createElement("span", { ref: wrapperRef, style: { position: "relative", display: "inline-block" } },
numberHeight > 0 && (react_1.default.createElement("div", { className: className, style: {
display: "flex",
overflow: "hidden",
flexDirection: "row",
position: "relative",
} }, randomSequences.map((seq, index) => {
var _a;
if (typeof seq === "string") {
return (react_1.default.createElement("div", { key: `static-${index}`, style: Object.assign(Object.assign({}, fontStyle), { fontVariantNumeric: "tabular-nums", width: numberWidth, textAlign: "center" }) }, seq));
}
return (react_1.default.createElement(react_2.motion.div, { key: `motion-${index}-${animateToNumber}`, initial: { y: 0 }, animate: { y: -1 * numberHeight * (seq.length - 1) }, transition: (_a = transitions === null || transitions === void 0 ? void 0 : transitions(index)) !== null && _a !== void 0 ? _a : {
duration: 1.8 + index * 0.1,
ease: [0.25, 0.1, 0.25, 1],
}, style: {
height: numberHeight,
width: numberWidth,
position: "relative",
} }, seq.map((num, i) => {
const isTarget = i === seq.length - 1;
return (react_1.default.createElement(react_2.motion.div, { key: `digit-${index}-${i}`, style: Object.assign(Object.assign({}, fontStyle), { fontVariantNumeric: "tabular-nums", height: numberHeight, textAlign: "center", opacity: isTarget ? 1 : 0.2, scale: isTarget ? 1 : 0.9 }), animate: isTarget
? {
scale: [1.2, 1],
opacity: [0.6, 1],
}
: {}, transition: isTarget
? {
duration: 0.4,
delay: 1.8 + index * 0.1,
ease: "easeOut",
}
: {} }, num));
})));
}))),
react_1.default.createElement("div", { ref: numberRef, style: Object.assign(Object.assign({ position: "absolute", top: -9999, visibility: "hidden" }, fontStyle), { fontVariantNumeric: "tabular-nums" }) }, "0")));
};
exports.default = AnimatedNumber;