Efeitos do menu suspenso

1488 Andev.web

Abrir no Editor Publique Seu Código

Recomendado

9 July 2025

Menu de contexto de vidro neon com seletor de cores

1 March 2025

Modelo HTML CSS para site de desenvolvedor

28 June 2025

Navegação da barra lateral HTML do painel OMIC EST

HTML

CSS

@charset "UTF-8";
* {
  border: 0;
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --hue: 223;
  --bg: hsl(0,0%,100%);
  --fg: hsl(var(--hue),10%,10%);
  --trans-dur: 0.3s;
  --trans-ease-in-out: cubic-bezier(0.65,0,0.35,1);
  --trans-ease-out: cubic-bezier(0.33,1,0.68,1);
  font-size: calc(20px + (40 - 20) * (100vw - 280px) / (3840 - 280));
}

body,
button {
  color: var(--fg);
  font: 1em/1.5 "DM Sans", sans-serif;
  transition: background-color var(--trans-dur), color var(--trans-dur);
}

body {
  background-color: var(--bg);
  display: flex;
  height: 100vh;
}
main {
  margin: auto;
  padding: 0.75em 0;
  width: min-content;
  height: 12em;
}

.drop {
  --drop-trans-dur: 0.5s;
  --drop-flare-dist: 0;
  border-radius: 0.5em;
  margin: auto;
  padding: 0.25em 0.25em 0 0.25em;
  position: relative;
  min-width: 9em;
}
.drop, .drop:after {
  background-color: hsl(var(--hue), 10%, 90%);
  transition: background-color var(--trans-dur);
}
.drop:before, .drop:after {
  content: "";
  position: absolute;
}
.drop:before {
  background-image: radial-gradient(100% 100% at 100% 50%, hsla(var(--hue), 90%, 50%, 0.5), hsla(var(--hue), 90%, 50%, 0) 50%);
  display: none;
  right: 0;
  bottom: 100%;
  width: 9em;
  height: 9em;
}
.drop:after {
  border-radius: 0.4375em;
  display: block;
  top: 0.125em;
  left: 0.125em;
  width: calc(100% - 0.25em);
  height: calc(100% - 0.25em);
}
.drop__btn {
  background-color: white;
  border-radius: 0.375em;
  box-shadow: 0 0 0 0.25em hsla(var(--hue), 90%, 50%, 0);
  cursor: pointer;
  display: flex;
  align-items: center;
  line-height: 1;
  height: 2.5em;
  outline: transparent;
  margin-bottom: 0.25em;
  padding: 0.75em;
  position: relative;
  width: 100%;
  transition: background-color var(--trans-dur), box-shadow calc(var(--trans-dur) / 2) var(--trans-ease-in-out), color var(--drop-trans-dur);
  -webkit-appearance: none;
  appearance: none;
  -webkit-tap-highlight-color: transparent;
  z-index: 1;
}
.drop__btn:hover, .drop__btn:focus-visible, .drop__btn[aria-expanded=true] {
  background-color: hsl(var(--hue), 10%, 95%);
}
.drop__btn:focus-visible {
  box-shadow: 0 0 0 0.25em hsla(var(--hue), 90%, 50%, 1);
}
.drop__btn:after {
  border-top: 0.375em solid currentColor;
  border-right: 0.375em solid transparent;
  border-left: 0.375em solid transparent;
  content: "";
  display: block;
  margin-inline-start: auto;
  width: 0;
  height: 0;
  transform-origin: 50% 37.5%;
  transition: transform var(--drop-trans-dur) var(--trans-ease-out);
}
.drop__btn[aria-expanded=true]:after {
  transform: rotate(0.5turn);
}
.drop--collapsing, .drop--expanding, .drop__items {
  overflow: hidden;
}
.drop__items {
  height: 0;
}
.drop__items-inner {
  visibility: hidden;
}
.drop--collapsing .drop__btn[aria-expanded=true] {
  background-color: white;
}
.drop--collapsing .drop__btn[aria-expanded=true]:after {
  transform: rotate(0);
}
.drop--expanding:before {
  display: block;
}
.drop__items .drop__btn:hover, .drop__items .drop__btn:focus-visible {
  background-color: hsl(var(--hue), 10%, 97.5%);
  color: hsla(var(--hue), 90%, 50%);
}
.drop__items .drop__btn:focus-visible {
  box-shadow: 0 0 0 0.25em hsla(var(--hue), 90%, 50%, 0);
}
.drop__items .drop__btn:after {
  border: 0;
  content: "✓";
  display: none;
  width: auto;
  height: auto;
}
.drop__items .drop__btn--selected:after {
  display: block;
}
.drop__btn[aria-expanded=true] ~ .drop__items {
  height: auto;
}
.drop__btn[aria-expanded=true] ~ .drop__items .drop__items-inner {
  visibility: visible;
}
.drop:has([aria-expanded=true]) {
  height: auto;
}
.drop:has([aria-expanded=true]):before {
  transform: translateY(calc(9em + var(--drop-flare-dist)));
  transition: transform var(--drop-trans-dur) linear;
}

/* Dark theme */
@media (prefers-color-scheme: dark) {
  :root {
    --bg: hsl(var(--hue),10%,10%);
    --fg: hsl(var(--hue),10%,90%);
  }

.drop, .drop:after {
    background-color: black;
  }
  .drop__btn {
    background-color: hsl(var(--hue), 10%, 10%);
  }
  .drop__btn:hover, .drop__btn:focus-visible, .drop__btn[aria-expanded=true] {
    background-color: hsl(var(--hue), 10%, 20%);
  }
  .drop__items .drop__btn:hover, .drop__items .drop__btn:focus-visible {
    background-color: hsl(var(--hue), 10%, 15%);
    color: hsla(var(--hue), 90%, 70%);
  }
  .drop--collapsing .drop__btn[aria-expanded=true] {
    background-color: hsl(var(--hue), 10%, 10%);
  }
}

JS

"use strict";
window.addEventListener("DOMContentLoaded", () => {
    const drop = new DropdownMenu("#dummy");
});
class DropdownMenu {
    /**
     * @param el CSS selector of the menu
    */
    constructor(el) {
        var _a, _b, _c;
        /** Animation objects */
        this.animations = [];
        /** Options for this menu */
        this.options = [
            { name: "windows", friendlyName: "Windows" },
            { name: "mac", friendlyName: "Mac" },
            { name: "linux", friendlyName: "Linux" }
        ];
        /** Selected option by name */
        this.selected = "windows";
        /** Menu is collapsing */
        this.isCollapsing = false;
        /** Menu is expanding */
        this.isExpanding = false;
        /** Actions to run after collapsing the item. */
        this.animActionsCollapse = {
            onfinish: this.onAnimationFinish.bind(this, false),
            oncancel: () => { this.isCollapsing = false; }
        };
        /** Actions to run after expanding the item. */
        this.animActionsExpand = {
            onfinish: this.onAnimationFinish.bind(this, true),
            oncancel: () => { this.isExpanding = false; }
        };
        this.el = document.querySelector(el);
        this.menuButton = (_a = this.el) === null || _a === void 0 ? void 0 : _a.querySelector("button");
        this.itemList = (_b = this.el) === null || _b === void 0 ? void 0 : _b.querySelector("[data-items]");
        this.defaultOption();
        document.addEventListener("click", this.outsideToClose.bind(this));
        window.addEventListener("keydown", this.escToClose.bind(this));
        (_c = this.el) === null || _c === void 0 ? void 0 : _c.addEventListener("click", this.toggle.bind(this));
        window.addEventListener("keydown", this.kbdAction.bind(this));
    }
    /** Transition duration specific to the menu */
    get transDuration() {
        if (this.el) {
            const style = getComputedStyle(this.el);
            const rawDur = style.getPropertyValue("--drop-trans-dur");
            let dur = rawDur.substring(0, rawDur.indexOf("s"));
            const mIndex = dur.indexOf("m");
            if (mIndex > -1) {
                dur = dur.substring(0, mIndex);
                return +dur;
            }
            // seconds to milliseconds
            return +dur * 1e3;
        }
        return 0;
    }
    /** Display the default selected option. */
    defaultOption() {
        var _a;
        const buttonEl = (_a = this.itemList) === null || _a === void 0 ? void 0 : _a.querySelector(`[value="${this.selected}"]`);
        buttonEl === null || buttonEl === void 0 ? void 0 : buttonEl.classList.add("drop__btn--selected");
        if (this.menuButton) {
            const optionFound = this.options.find(option => option.name === this.selected);
            this.menuButton.textContent = (optionFound === null || optionFound === void 0 ? void 0 : optionFound.friendlyName) || "";
        }
    }
    /**
     * Navigate the menu options with arrow keys.
     * @param e Keydown event
     */
    kbdAction(e) {
        var _a;
        const { key } = e;
        const tabOrArrow = key === "Tab" || key === "ArrowUp" || key === "ArrowDown";
        const notAnimating = !this.isExpanding && !this.isCollapsing;
        if (notAnimating && ((_a = this.menuButton) === null || _a === void 0 ? void 0 : _a.ariaExpanded) === "true" && tabOrArrow) {
            this.navigateOption(e);
        }
    }
    /**
     * Press Esc to close the menu.
     * @param e Keydown event
     */
    escToClose(e) {
        var _a;
        if (e.key === "Escape" && (!this.isCollapsing && ((_a = this.menuButton) === null || _a === void 0 ? void 0 : _a.ariaExpanded) === "true")) {
            this.toggle(e);
        }
    }
    /**
     * Click outside the menu to close.
     * @param e Click event
     */
    outsideToClose(e) {
        var _a;
        let target = e.target;
        let elFound = false;
        if (!this.isCollapsing && ((_a = this.menuButton) === null || _a === void 0 ? void 0 : _a.ariaExpanded) === "true") {
            do {
                target = target.parentElement;
                if (target === this.el) {
                    elFound = true;
                }
            } while (target);
            if (!elFound) {
                this.toggle(e);
            }
        }
    }
    /**
     * Navigate the menu options with arrow keys.
     * @param e Keydown event
     */
    navigateOption(e) {
        var _a;
        const itemList = (_a = this.el) === null || _a === void 0 ? void 0 : _a.querySelector("[data-items]");
        const buttonEls = itemList === null || itemList === void 0 ? void 0 : itemList.querySelectorAll("button");
        const buttons = Array.from(buttonEls || []);
        const buttonsTemp = [...buttons]; // for getting the first and last
        const first = buttonsTemp.shift();
        const last = buttonsTemp.pop();
        const currentItem = document.activeElement;
        const { key, shiftKey } = e;
        const downKey = key === "ArrowDown";
        const upKey = key === "ArrowUp";
        const currentIndex = buttons.indexOf(currentItem);
        if (!buttons.length) {
            // do nothing for no items
            e.preventDefault();
        }
        else if (downKey) {
            // next item, go to the first if on the last
            e.preventDefault();
            const nextIndex = currentIndex + 1;
            if (nextIndex >= buttons.length) {
                first === null || first === void 0 ? void 0 : first.focus();
                return;
            }
            buttons[nextIndex].focus();
        }
        else if (upKey) {
            // previous item, go to the last if on the first
            e.preventDefault();
            const prevIndex = currentIndex - 1;
            if (prevIndex < 0) {
                last === null || last === void 0 ? void 0 : last.focus();
                return;
            }
            buttons[prevIndex].focus();
        }
        else if (buttons.length === 1 || ((!(itemList === null || itemList === void 0 ? void 0 : itemList.contains(currentItem)) || currentItem === last) && !shiftKey)) {
            // go to the first item if on the last
            e.preventDefault();
            first === null || first === void 0 ? void 0 : first.focus();
        }
        else if ((!(itemList === null || itemList === void 0 ? void 0 : itemList.contains(currentItem)) || currentItem === first) && shiftKey) {
            // go to the last item if on the first
            e.preventDefault();
            last === null || last === void 0 ? void 0 : last.focus();
        }
    }
    /**
     * Open or close the menu.
     * @param e Click event
     */
    toggle(e) {
        var _a, _b;
        e.preventDefault();
        (_a = this.el) === null || _a === void 0 ? void 0 : _a.classList.remove("drop--collapsing", "drop--expanding");
        const shouldExpand = ((_b = this.menuButton) === null || _b === void 0 ? void 0 : _b.ariaExpanded) === "true";
        if (this.isCollapsing || !shouldExpand) {
            this.expand();
        }
        else if (this.isExpanding || shouldExpand) {
            this.collapse(e);
        }
    }
    /** Expand the menu. */
    expand() {
        var _a, _b;
        if (!this.el || !this.itemList)
            return;
        this.itemList.style.height = `${this.itemList.offsetHeight}px`;
        (_a = this.menuButton) === null || _a === void 0 ? void 0 : _a.setAttribute("aria-expanded", "true");
        this.el.classList.add("drop--expanding");
        this.isExpanding = true;
        // reset the animations
        this.animations.forEach(anim => anim.cancel());
        this.animations = [];
        const buttonEls = this.itemList.querySelectorAll("button");
        const buttons = Array.from(buttonEls || []);
        // animate the menu height
        const startHeight = this.itemList.offsetHeight || 0;
        const endHeight = ((_b = this.itemList.firstElementChild) === null || _b === void 0 ? void 0 : _b.offsetHeight) || 0;
        const itemListAnim = this.itemList.animate({ height: [`${startHeight}px`, `${endHeight}px`] }, {
            duration: this.transDuration,
            easing: "cubic-bezier(0.33,1,0.68,1.33)"
        });
        itemListAnim.onfinish = this.animActionsExpand.onfinish;
        itemListAnim.oncancel = this.animActionsExpand.oncancel;
        this.animations.push(itemListAnim);
        // animate the buttons
        buttons.forEach((button, i) => {
            // animate the buttons
            const buttomAnim = button.animate({ transform: ["translateY(100%)", "translateY(0)"] }, {
                duration: this.transDuration,
                delay: this.transDuration / 12 * i,
                easing: "cubic-bezier(0.33,1,0.68,1)"
            });
            this.animations.push(buttomAnim);
        });
        // animate the flare
        this.el.style.setProperty("--drop-flare-dist", `${endHeight}px`);
    }
    /**
     * Collapse the menu.
     * @param e Click event
     */
    collapse(e) {
        var _a, _b, _c;
        if (!this.el || !this.itemList)
            return;
        this.el.classList.add("drop--collapsing");
        this.isCollapsing = true;
        // reset the animations
        this.animations.forEach(anim => anim.cancel());
        this.animations = [];
        const clickedButton = e.target;
        const buttonEls = (_a = this.itemList) === null || _a === void 0 ? void 0 : _a.querySelectorAll("button");
        const buttons = Array.from(buttonEls || []);
        // animate the menu height
        const startHeight = ((_b = this.itemList) === null || _b === void 0 ? void 0 : _b.offsetHeight) || 0;
        const endHeight = 0;
        const easing = "cubic-bezier(0.33,1,0.68,1)";
        const itemListAnim = this.itemList.animate({ height: [`${startHeight}px`, `${endHeight}px`] }, { duration: this.transDuration, easing });
        itemListAnim.onfinish = this.animActionsCollapse.onfinish;
        itemListAnim.oncancel = this.animActionsCollapse.oncancel;
        this.animations.push(itemListAnim);
        // animate the buttons
        buttons.forEach((button, i) => {
            if (clickedButton.value) {
                // remove the previous checkmark after selecting an option
                button.classList.remove("drop__btn--selected");
            }
            // animate the buttons
            const delayInc = this.transDuration / 12;
            const buttomAnim = button.animate({ transform: ["translateY(0)", "translateY(100%)"] }, {
                duration: this.transDuration,
                delay: delayInc * (buttons.length - 1) - (delayInc * i),
                easing
            });
            this.animations.push(buttomAnim);
        });
        if (clickedButton.value) {
            // set this menu’s option from a `value`
            clickedButton.classList.add("drop__btn--selected");
            if (this.menuButton) {
                const optionFound = this.options.find(option => option.name === clickedButton.value);
                this.menuButton.textContent = (optionFound === null || optionFound === void 0 ? void 0 : optionFound.friendlyName) || "";
            }
        }
        (_c = this.menuButton) === null || _c === void 0 ? void 0 : _c.focus();
        // animate the flare
        this.el.style.setProperty("--drop-flare-dist", `${endHeight}px`);
    }
    /**
     * Actions to run when the animation is finished
     * @param open Menu should be expanded
     */
    onAnimationFinish(open) {
        var _a, _b;
        if (!this.el || !this.itemList)
            return;
        (_a = this.menuButton) === null || _a === void 0 ? void 0 : _a.setAttribute("aria-expanded", `${open}`);
        this.animations = [];
        this.isCollapsing = false;
        this.isExpanding = false;
        this.itemList.style.height = "";
        (_b = this.el) === null || _b === void 0 ? void 0 : _b.classList.remove("drop--collapsing", "drop--expanding");
    }
}

Recomendado

Menu de contexto de vidro neon com seletor de cores

Modelo HTML CSS para site de desenvolvedor

Navegação da barra lateral HTML do painel OMIC EST

HTMLCopy

CSSCopy

JSCopy

HTML

CSS

JS