feat(converter): add animations to currency conversion and selection components

2026-03-12 18:46:39 +01:00
parent 2b99854c22
commit 8f6a242273
4 changed files with 186 additions and 23 deletions
--- a/components/converter/converter-card.tsx
+++ b/components/converter/converter-card.tsx
@@ -1,6 +1,7 @@
 "use client";

 import { useEffect, useMemo, useState } from "react";
+import { AnimatePresence, motion, useReducedMotion } from "framer-motion";
 import {
  AlertTriangle,
  ArrowUpDown,
@@ -140,6 +141,7 @@ export function ConverterCard({
  onPairChange,
  multiConversionCodes,
 }: ConverterCardProps) {
+  const shouldReduceMotion = useReducedMotion();
  const { data, error, isLoading, refresh } = useMarketRates();

  const [amountInput, setAmountInput] = useState("1");
@@ -147,6 +149,7 @@ export function ConverterCard({
  const [toCode, setToCode] = useState(DEFAULT_TO);
  const [isCopied, setIsCopied] = useState(false);
  const [marketRange, setMarketRange] = useState<MarketChartRange>("24h");
+  const [swapAnimationStep, setSwapAnimationStep] = useState(0);

  const debouncedAmount = useDebouncedValue(amountInput, 120);

@@ -250,6 +253,7 @@ export function ConverterCard({
  }, [fromAsset, toAsset]);

  const handleSwap = () => {
+    setSwapAnimationStep((current) => current + 1);
    setFromCode(toCode);
    setToCode(fromCode);
  };
@@ -364,6 +368,8 @@ export function ConverterCard({
      : "--";

  const amountError = inputValidation.ok ? null : inputValidation.error;
+  const pairTransitionKey =
+    fromAsset && toAsset ? `${fromAsset.code}-${toAsset.code}` : "empty";

  return (
    <Card className="relative overflow-hidden border-border/70 bg-card/90">
@@ -505,7 +511,26 @@ export function ConverterCard({
            onClick={handleSwap}
            aria-label="Swap currencies"
          >
-            <ArrowUpDown className="h-4 w-4" />
+            <motion.span
+              className="inline-flex"
+              animate={
+                shouldReduceMotion
+                  ? { scale: 1 }
+                  : { rotate: swapAnimationStep * 180, scale: [1, 1.08, 1] }
+              }
+              transition={{
+                rotate: {
+                  duration: shouldReduceMotion ? 0.01 : 0.28,
+                  ease: [0.22, 1, 0.36, 1],
+                },
+                scale: {
+                  duration: shouldReduceMotion ? 0.01 : 0.22,
+                  times: [0, 0.35, 1],
+                },
+              }}
+            >
+              <ArrowUpDown className="h-4 w-4" />
+            </motion.span>
          </Button>
          <CurrencySelect
            label="To"
@@ -541,28 +566,72 @@ export function ConverterCard({
            </Button>
          </div>
          {fromAsset && toAsset ? (
-            <div className="mt-2 flex items-center gap-2 text-xs text-muted-foreground">
-              <span className="inline-flex items-center gap-1.5 rounded-full border border-border/70 bg-background/60 px-2 py-1">
-                <CurrencyIcon
-                  code={fromAsset.code}
-                  type={fromAsset.type}
-                  size="sm"
-                />
-                {fromAsset.code}
-              </span>
-              <span>to</span>
-              <span className="inline-flex items-center gap-1.5 rounded-full border border-border/70 bg-background/60 px-2 py-1">
-                <CurrencyIcon
-                  code={toAsset.code}
-                  type={toAsset.type}
-                  size="sm"
-                />
-                {toAsset.code}
-              </span>
-            </div>
+            <AnimatePresence initial={false} mode="wait">
+              <motion.div
+                key={pairTransitionKey}
+                className="mt-2 flex items-center gap-2 text-xs text-muted-foreground"
+                initial={
+                  shouldReduceMotion
+                    ? false
+                    : { opacity: 0, y: 4, filter: "blur(2px)" }
+                }
+                animate={
+                  shouldReduceMotion
+                    ? { opacity: 1 }
+                    : { opacity: 1, y: 0, filter: "blur(0px)" }
+                }
+                exit={
+                  shouldReduceMotion
+                    ? { opacity: 0 }
+                    : { opacity: 0, y: -4, filter: "blur(2px)" }
+                }
+                transition={{ duration: shouldReduceMotion ? 0.01 : 0.16 }}
+              >
+                <span className="inline-flex items-center gap-1.5 rounded-full border border-border/70 bg-background/60 px-2 py-1">
+                  <CurrencyIcon
+                    code={fromAsset.code}
+                    type={fromAsset.type}
+                    size="sm"
+                  />
+                  {fromAsset.code}
+                </span>
+                <span>to</span>
+                <span className="inline-flex items-center gap-1.5 rounded-full border border-border/70 bg-background/60 px-2 py-1">
+                  <CurrencyIcon
+                    code={toAsset.code}
+                    type={toAsset.type}
+                    size="sm"
+                  />
+                  {toAsset.code}
+                </span>
+              </motion.div>
+            </AnimatePresence>
          ) : null}
          <p className="mt-2 break-all text-3xl font-semibold tracking-tight text-foreground sm:text-4xl">
-            {convertedDisplay}
+            <AnimatePresence initial={false} mode="wait">
+              <motion.span
+                key={convertedDisplay}
+                className="inline-block"
+                initial={
+                  shouldReduceMotion
+                    ? false
+                    : { opacity: 0, y: 6, filter: "blur(2px)" }
+                }
+                animate={
+                  shouldReduceMotion
+                    ? { opacity: 1 }
+                    : { opacity: 1, y: 0, filter: "blur(0px)" }
+                }
+                exit={
+                  shouldReduceMotion
+                    ? { opacity: 0 }
+                    : { opacity: 0, y: -6, filter: "blur(2px)" }
+                }
+                transition={{ duration: shouldReduceMotion ? 0.01 : 0.18 }}
+              >
+                {convertedDisplay}
+              </motion.span>
+            </AnimatePresence>
          </p>
          {fromAsset ? (
            <p className="mt-2 text-sm text-muted-foreground">
@@ -609,7 +678,30 @@ export function ConverterCard({
                    {asset.code}
                  </div>
                  <p className="mt-1 text-base font-medium text-foreground">
-                    {formatAmount(value, asset)} {asset.code}
+                    <AnimatePresence initial={false} mode="wait">
+                      <motion.span
+                        key={`${asset.code}-${formatAmount(value, asset)}`}
+                        className="inline-block"
+                        initial={
+                          shouldReduceMotion
+                            ? false
+                            : { opacity: 0, y: 4, filter: "blur(1px)" }
+                        }
+                        animate={
+                          shouldReduceMotion
+                            ? { opacity: 1 }
+                            : { opacity: 1, y: 0, filter: "blur(0px)" }
+                        }
+                        exit={
+                          shouldReduceMotion
+                            ? { opacity: 0 }
+                            : { opacity: 0, y: -4, filter: "blur(1px)" }
+                        }
+                        transition={{ duration: shouldReduceMotion ? 0.01 : 0.15 }}
+                      >
+                        {formatAmount(value, asset)} {asset.code}
+                      </motion.span>
+                    </AnimatePresence>
                  </p>
                </div>
              ))}
--- a/components/converter/currency-select.tsx
+++ b/components/converter/currency-select.tsx
@@ -1,6 +1,7 @@
 "use client";

 import { useMemo, useState } from "react";
+import { AnimatePresence, motion, useReducedMotion } from "framer-motion";
 import { Check, ChevronDown } from "lucide-react";

 import { POPULAR_CODES } from "@/lib/assets";
@@ -61,6 +62,7 @@ export function CurrencySelect({
  disabled
 }: CurrencySelectProps) {
  const [open, setOpen] = useState(false);
+  const shouldReduceMotion = useReducedMotion();

  const selectedAsset = useMemo(
    () => assets.find((asset) => asset.code === value),
@@ -103,7 +105,32 @@ export function CurrencySelect({
            disabled={disabled}
            className="h-auto w-full justify-between rounded-xl border-border/70 px-3 py-2.5"
          >
-            <AssetLabel asset={selectedAsset} />
+            <span className="flex min-w-0 flex-1 overflow-hidden">
+              <AnimatePresence mode="wait" initial={false}>
+                <motion.span
+                  key={selectedAsset?.code ?? "empty"}
+                  className="block min-w-0 flex-1"
+                  initial={
+                    shouldReduceMotion
+                      ? false
+                      : { opacity: 0, y: 4, filter: "blur(2px)" }
+                  }
+                  animate={
+                    shouldReduceMotion
+                      ? { opacity: 1 }
+                      : { opacity: 1, y: 0, filter: "blur(0px)" }
+                  }
+                  exit={
+                    shouldReduceMotion
+                      ? { opacity: 0 }
+                      : { opacity: 0, y: -4, filter: "blur(2px)" }
+                  }
+                  transition={{ duration: shouldReduceMotion ? 0.01 : 0.18 }}
+                >
+                  <AssetLabel asset={selectedAsset} />
+                </motion.span>
+              </AnimatePresence>
+            </span>
            <ChevronDown className="ml-2 h-4 w-4 shrink-0 text-muted-foreground" />
          </Button>
        </PopoverTrigger>
--- a/package-lock.json
+++ b/package-lock.json
@@ -15,6 +15,7 @@
        "cmdk": "^1.0.4",
        "cryptocurrency-icons": "^0.18.1",
        "currency-flags": "github:vivekimsit/currency-flags",
+        "framer-motion": "^12.36.0",
        "lucide-react": "^0.475.0",
        "next": "^14.2.24",
        "react": "^18.2.0",
@@ -3502,6 +3503,33 @@
        "url": "https://github.com/sponsors/rawify"
      }
    },
+    "node_modules/framer-motion": {
+      "version": "12.36.0",
+      "resolved": "https://registry.npmjs.org/framer-motion/-/framer-motion-12.36.0.tgz",
+      "integrity": "sha512-4PqYHAT7gev0ke0wos+PyrcFxI0HScjm3asgU8nSYa8YzJFuwgIvdj3/s3ZaxLq0bUSboIn19A2WS/MHwLCvfw==",
+      "license": "MIT",
+      "dependencies": {
+        "motion-dom": "^12.36.0",
+        "motion-utils": "^12.36.0",
+        "tslib": "^2.4.0"
+      },
+      "peerDependencies": {
+        "@emotion/is-prop-valid": "*",
+        "react": "^18.0.0 || ^19.0.0",
+        "react-dom": "^18.0.0 || ^19.0.0"
+      },
+      "peerDependenciesMeta": {
+        "@emotion/is-prop-valid": {
+          "optional": true
+        },
+        "react": {
+          "optional": true
+        },
+        "react-dom": {
+          "optional": true
+        }
+      }
+    },
    "node_modules/fs.realpath": {
      "version": "1.0.0",
      "resolved": "https://registry.npmjs.org/fs.realpath/-/fs.realpath-1.0.0.tgz",
@@ -4688,6 +4716,21 @@
        "node": ">=16 || 14 >=14.17"
      }
    },
+    "node_modules/motion-dom": {
+      "version": "12.36.0",
+      "resolved": "https://registry.npmjs.org/motion-dom/-/motion-dom-12.36.0.tgz",
+      "integrity": "sha512-Ep1pq8P88rGJ75om8lTCA13zqd7ywPGwCqwuWwin6BKc0hMLkVfcS6qKlRqEo2+t0DwoUcgGJfXwaiFn4AOcQA==",
+      "license": "MIT",
+      "dependencies": {
+        "motion-utils": "^12.36.0"
+      }
+    },
+    "node_modules/motion-utils": {
+      "version": "12.36.0",
+      "resolved": "https://registry.npmjs.org/motion-utils/-/motion-utils-12.36.0.tgz",
+      "integrity": "sha512-eHWisygbiwVvf6PZ1vhaHCLamvkSbPIeAYxWUuL3a2PD/TROgE7FvfHWTIH4vMl798QLfMw15nRqIaRDXTlYRg==",
+      "license": "MIT"
+    },
    "node_modules/ms": {
      "version": "2.1.3",
      "resolved": "https://registry.npmjs.org/ms/-/ms-2.1.3.tgz",
--- a/package.json
+++ b/package.json
@@ -17,6 +17,7 @@
    "cmdk": "^1.0.4",
    "cryptocurrency-icons": "^0.18.1",
    "currency-flags": "github:vivekimsit/currency-flags",
+    "framer-motion": "^12.36.0",
    "lucide-react": "^0.475.0",
    "next": "^14.2.24",
    "react": "^18.2.0",