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Direction Aware Hover

A direction aware hover effect using Framer Motion, Tailwindcss and good old javascript.

Open in
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In the mountains

$1299 / night

Installation

Install dependencies

npm i motion clsx tailwind-merge

Add util file

lib/utils.ts
import { ClassValue, clsx } from "clsx";
import { twMerge } from "tailwind-merge";
 
export function cn(...inputs: ClassValue[]) {
  return twMerge(clsx(inputs));
}

Copy the source code

components/ui/direction-aware-hover.tsx

"use client";
 
import { useRef, useState } from "react";
 
import { AnimatePresence, motion } from "motion/react";
import { cn } from "@/lib/utils";
 
export const DirectionAwareHover = ({
  imageUrl,
  children,
  childrenClassName,
  imageClassName,
  className,
}: {
  imageUrl: string;
  children: React.ReactNode | string;
  childrenClassName?: string;
  imageClassName?: string;
  className?: string;
}) => {
  const ref = useRef<HTMLDivElement>(null);
 
  const [direction, setDirection] = useState<
    "top" | "bottom" | "left" | "right" | string
  >("left");
 
  const handleMouseEnter = (
    event: React.MouseEvent<HTMLDivElement, MouseEvent>
  ) => {
    if (!ref.current) return;
 
    const direction = getDirection(event, ref.current);
    console.log("direction", direction);
    switch (direction) {
      case 0:
        setDirection("top");
        break;
      case 1:
        setDirection("right");
        break;
      case 2:
        setDirection("bottom");
        break;
      case 3:
        setDirection("left");
        break;
      default:
        setDirection("left");
        break;
    }
  };
 
  const getDirection = (
    ev: React.MouseEvent<HTMLDivElement, MouseEvent>,
    obj: HTMLElement
  ) => {
    const { width: w, height: h, left, top } = obj.getBoundingClientRect();
    const x = ev.clientX - left - (w / 2) * (w > h ? h / w : 1);
    const y = ev.clientY - top - (h / 2) * (h > w ? w / h : 1);
    const d = Math.round(Math.atan2(y, x) / 1.57079633 + 5) % 4;
    return d;
  };
 
  return (
    <motion.div
      onMouseEnter={handleMouseEnter}
      ref={ref}
      className={cn(
        "md:h-96 w-60 h-60 md:w-96 bg-transparent rounded-lg overflow-hidden group/card relative",
        className
      )}
    >
      <AnimatePresence mode="wait">
        <motion.div
          className="relative h-full w-full"
          initial="initial"
          whileHover={direction}
          exit="exit"
        >
          <motion.div className="group-hover/card:block hidden absolute inset-0 w-full h-full bg-black/40 z-10 transition duration-500" />
          <motion.div
            variants={variants}
            className="h-full w-full relative bg-gray-50 dark:bg-black"
            transition={{
              duration: 0.2,
              ease: "easeOut",
            }}
          >
            <img
              alt="image"
              className={cn(
                "h-full w-full object-cover scale-[1.15]",
                imageClassName
              )}
              width="1000"
              height="1000"
              src={imageUrl}
            />
          </motion.div>
          <motion.div
            variants={textVariants}
            transition={{
              duration: 0.5,
              ease: "easeOut",
            }}
            className={cn(
              "text-white absolute bottom-4 left-4 z-40",
              childrenClassName
            )}
          >
            {children}
          </motion.div>
        </motion.div>
      </AnimatePresence>
    </motion.div>
  );
};
 
const variants = {
  initial: {
    x: 0,
  },
 
  exit: {
    x: 0,
    y: 0,
  },
  top: {
    y: 20,
  },
  bottom: {
    y: -20,
  },
  left: {
    x: 20,
  },
  right: {
    x: -20,
  },
};
 
const textVariants = {
  initial: {
    y: 0,
    x: 0,
    opacity: 0,
  },
  exit: {
    y: 0,
    x: 0,
    opacity: 0,
  },
  top: {
    y: -20,
    opacity: 1,
  },
  bottom: {
    y: 2,
    opacity: 1,
  },
  left: {
    x: -2,
    opacity: 1,
  },
  right: {
    x: 20,
    opacity: 1,
  },
};

Props

PropTypeDescription
imageUrlstringThe URL of the image to be displayed.
childrenReact.ReactNode or stringThe content to be displayed over the image.
childrenClassNamestring (optional)The CSS class to be applied to the children.
imageClassNamestring (optional)The CSS class to be applied to the image.

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Building in public at @mannupaaji