【GSAP】GSAP Practice【#１２ GSAP Sample３ Drower Menu Animation２】

【#１２ GSAP Sample３ Drower Menu Animation２】

YouTube: https://youtu.be/KhjZQdOJpn8
https://youtu.be/KhjZQdOJpn8

今回も引き続きGSAPを使用して、
ドロワーメニューを作成していきます。

今回は、JSの部分を実装します。

まずは、CSSを変更して、
メニューを閉じた状態にします。

css/main.css

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
html,
body {
  width: 100%;
  height: 100%;
}
.section-1,
.section-2,
.section-3 {
  width: 100%;
  height: 100vh;
}
.section-1 {
  background-color: salmon;
  display: flex;
  flex-direction: column;
  gap: 20px;
  align-items: center;
  justify-content: center;
}

#loading {
  color: white;
  font-size: 60px;
  display: flex;
}

#loading span {
  display: block;
}

.section-2 {
  background-color: skyblue;
  display: flex;
  flex-direction: column;
  gap: 20px;
  align-items: center;
  justify-content: center;
}
#stroke-wrapper {
  width: 1000px;
  margin: 0 auto;
  background-color: gray;
}

.section-3 {
  background-color: violet;
  display: flex;
  flex-direction: column;
  position: relative;
}
.sec3-nav {
  width: 100%;
  max-width: 1560px;
  margin: 0 auto;
  padding: 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.sec3-logo {
  font-weight: bold;
  font-size: 24px;
}
.ri-menu-line,
.ri-close-line {
  font-size: 24px;
  cursor: pointer;
  font-weight: 500;
}
.menu-wrapper {
  height: 100%;
  width: 320px;
  position: absolute;
  top: 0;
  right: -320px;
  background-color: rgba(255, 255, 255, 0.8);
  padding: 20px;
}
.menu-header {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 30px;
}
.menu-line {
  width: 100%;
  height: 1px;
  margin: 14px 0;
  background-color: rgba(255, 255, 255, 1);
}
.menu-list-wrapper {
  list-style-type: none;
  display: flex;
  flex-direction: column;
  gap: 20px;
  font-size: 22px;
}
.menu-bg {
  width: 100%;
  height: 100%;
  position: absolute;
  top: 0;
  right: -100%;
  background-color: rgba(255, 77, 0, 0.6);
}
.box {
  width: 160px;
  height: 160px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
}
.box-1 {
  background-color: red;
}
.box-2 {
  background-color: blue;
}
.box-3 {
  background-color: green;
}
.box-4 {
  background-color: purple;
}

動画内138行目の「dutarion」の部分が誤りで、
正しくは「duration」になります。

js/main.js

// use a script tag or an external JS file
document.addEventListener("DOMContentLoaded", (event) => {
  gsap.registerPlugin(ScrollTrigger);
  new App();
});

class App {
  constructor() {
    this._initialize();
    this._renderLenis();
  }

  _initialize() {
    this._createLenis();
    this._sec1Anime();
    this._sec2Anime();
    this._sec3Anime();
  }

  _createLenis() {
    this.lenis = new Lenis();
  }

  _renderLenis(time) {
    this.lenis.raf(time);
    requestAnimationFrame(this._renderLenis.bind(this));
  }

  _sec1Anime() {
    const loadingEl = document.querySelector("#loading");
    const loadingTexts = loadingEl.textContent.split("");
    let innerText = "";

    loadingTexts.forEach((text) => {
      innerText += `<span>${text}</span>`;
    });

    // console.log(loadingTexts);
    // console.log(innerText);

    loadingEl.innerHTML = innerText;

    const tl = gsap.timeline({ repeat: -1 });

    tl.to("#loading span", {
      duration: 1,
      y: -50,
      stagger: {
        each: 0.2,
        from: "left",
      },
    }).to("#loading span", {
      duration: 1,
      y: 0,
      stagger: {
        each: 0.2,
        from: "left",
      },
      ease: "bounce.out",
    });
  }

  _sec2Anime() {
    const strokeEl = document.querySelector("#stroke-wrapper");
    const strokeElHeight = strokeEl.clientHeight;
    const rectX = strokeEl.getBoundingClientRect().left;
    const rectY = strokeEl.getBoundingClientRect().top;

    let orgPath = `M 20 ${strokeElHeight / 2} Q 480 ${strokeElHeight / 2} 980 ${
      strokeElHeight / 2
    }`;

    gsap.set("svg path", {
      attr: {
        d: orgPath,
      },
    });

    strokeEl.addEventListener("mousemove", (e) => {
      let strokeQY = strokeElHeight / 2;
      let strokeQX = e.x - rectX;
      let strokeRectY = e.y - rectY;

      if (strokeRectY > strokeElHeight / 2) {
        strokeQY = strokeRectY - strokeElHeight / 2;
      } else {
        strokeQY = strokeRectY + strokeElHeight / 2;
      }

      let path = `M 20 ${strokeElHeight / 2} Q ${strokeQX} ${strokeQY} 980 ${
        strokeElHeight / 2
      }`;

      gsap.to("svg path", {
        attr: {
          d: path,
        },
        duration: 0.3,
        ease: "power3.out",
      });
    });

    strokeEl.addEventListener("mouseleave", () => {
      gsap.to("svg path", {
        attr: {
          d: orgPath,
        },
        duration: 1.5,
        ease: "elastic.out(1,0.3)",
      });
    });
  }
  _sec3Anime() {
    const menuOpen = document.querySelector("#menu-open");
    const menuClose = document.querySelector("#menu-close");
    const menuBg = document.querySelector(".menu-bg");

    const tl = gsap.timeline();

    tl.to(".menu-wrapper", {
      right: 0,
      duration: 0.7,
      ease: "power3.out",
    });

    tl.to(
      ".menu-bg",
      {
        right: 0,
        duration: 0.7,
        ease: "power3.out",
      },
      0.5
    );

    tl.from(
      ".menu-list",
      {
        x: 150,
        opacity: 0,
        duration: 0.2,
        stagger: {
          each: 0.2,
        },
      },
      0.5
    );

    tl.pause();

    menuOpen.addEventListener("click", () => {
      tl.play();
    });
    menuClose.addEventListener("click", () => {
      tl.reverse();
    });
    menuBg.addEventListener("click", () => {
      tl.reverse();
    });
  }
}