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node_modules/framer-motion/dist/es/projection/animation/mix-values.mjs

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+import { mixNumber, percent, px } from 'motion-dom';
+import { progress, circOut, noop } from 'motion-utils';
+
+const borders = ["TopLeft", "TopRight", "BottomLeft", "BottomRight"];
+const numBorders = borders.length;
+const asNumber = (value) => typeof value === "string" ? parseFloat(value) : value;
+const isPx = (value) => typeof value === "number" || px.test(value);
+function mixValues(target, follow, lead, progress, shouldCrossfadeOpacity, isOnlyMember) {
+    if (shouldCrossfadeOpacity) {
+        target.opacity = mixNumber(0, lead.opacity ?? 1, easeCrossfadeIn(progress));
+        target.opacityExit = mixNumber(follow.opacity ?? 1, 0, easeCrossfadeOut(progress));
+    }
+    else if (isOnlyMember) {
+        target.opacity = mixNumber(follow.opacity ?? 1, lead.opacity ?? 1, progress);
+    }
+    /**
+     * Mix border radius
+     */
+    for (let i = 0; i < numBorders; i++) {
+        const borderLabel = `border${borders[i]}Radius`;
+        let followRadius = getRadius(follow, borderLabel);
+        let leadRadius = getRadius(lead, borderLabel);
+        if (followRadius === undefined && leadRadius === undefined)
+            continue;
+        followRadius || (followRadius = 0);
+        leadRadius || (leadRadius = 0);
+        const canMix = followRadius === 0 ||
+            leadRadius === 0 ||
+            isPx(followRadius) === isPx(leadRadius);
+        if (canMix) {
+            target[borderLabel] = Math.max(mixNumber(asNumber(followRadius), asNumber(leadRadius), progress), 0);
+            if (percent.test(leadRadius) || percent.test(followRadius)) {
+                target[borderLabel] += "%";
+            }
+        }
+        else {
+            target[borderLabel] = leadRadius;
+        }
+    }
+    /**
+     * Mix rotation
+     */
+    if (follow.rotate || lead.rotate) {
+        target.rotate = mixNumber(follow.rotate || 0, lead.rotate || 0, progress);
+    }
+}
+function getRadius(values, radiusName) {
+    return values[radiusName] !== undefined
+        ? values[radiusName]
+        : values.borderRadius;
+}
+// /**
+//  * We only want to mix the background color if there's a follow element
+//  * that we're not crossfading opacity between. For instance with switch
+//  * AnimateSharedLayout animations, this helps the illusion of a continuous
+//  * element being animated but also cuts down on the number of paints triggered
+//  * for elements where opacity is doing that work for us.
+//  */
+// if (
+//     !hasFollowElement &&
+//     latestLeadValues.backgroundColor &&
+//     latestFollowValues.backgroundColor
+// ) {
+//     /**
+//      * This isn't ideal performance-wise as mixColor is creating a new function every frame.
+//      * We could probably create a mixer that runs at the start of the animation but
+//      * the idea behind the crossfader is that it runs dynamically between two potentially
+//      * changing targets (ie opacity or borderRadius may be animating independently via variants)
+//      */
+//     leadState.backgroundColor = followState.backgroundColor = mixColor(
+//         latestFollowValues.backgroundColor as string,
+//         latestLeadValues.backgroundColor as string
+//     )(p)
+// }
+const easeCrossfadeIn = /*@__PURE__*/ compress(0, 0.5, circOut);
+const easeCrossfadeOut = /*@__PURE__*/ compress(0.5, 0.95, noop);
+function compress(min, max, easing) {
+    return (p) => {
+        // Could replace ifs with clamp
+        if (p < min)
+            return 0;
+        if (p > max)
+            return 1;
+        return easing(progress(min, max, p));
+    };
+}
+
+export { mixValues };