Element Picker

Reusable element picker library for userscripts.

Este script no debería instalarse directamente. Es una biblioteca que utilizan otros scripts mediante la meta-directiva de inclusión // @require https://update.greasyfork.org/scripts/589922/1893812/Element%20Picker.js

Tendrás que instalar una extensión para tu navegador como Tampermonkey, Greasemonkey o Violentmonkey si quieres utilizar este script.

You will need to install an extension such as Tampermonkey or Violentmonkey to install this script.

Tendrás que instalar una extensión como Tampermonkey o Violentmonkey para instalar este script.

Necesitarás instalar una extensión como Tampermonkey o Userscripts para instalar este script.

Tendrás que instalar una extensión como Tampermonkey antes de poder instalar este script.

Necesitarás instalar una extensión para administrar scripts de usuario si quieres instalar este script.

(Ya tengo un administrador de scripts de usuario, déjame instalarlo)

Tendrás que instalar una extensión como Stylus antes de poder instalar este script.

Tendrás que instalar una extensión como Stylus antes de poder instalar este script.

Tendrás que instalar una extensión como Stylus antes de poder instalar este script.

Para poder instalar esto tendrás que instalar primero una extensión de estilos de usuario.

Para poder instalar esto tendrás que instalar primero una extensión de estilos de usuario.

Para poder instalar esto tendrás que instalar primero una extensión de estilos de usuario.

(Ya tengo un administrador de estilos de usuario, déjame instalarlo)

// ==UserScript==
// @name           Element Picker
// @namespace      https://greasyfork.org/users/821661
// @version        0.0.3
// @description    Reusable element picker library for userscripts with premium UI. Includes DOM traversal, metrics, unique CSS selectors, and theme customization.
// @author         hdyzen
// @grant          none
// ==/UserScript==

(() => {
    function elementPicker(globalConfig = {}) {
        const state = {
            enabled: false,
            isLocked: false,
            hoveredElement: null,
            selectedElement: null,
            filter: null,
            exclude: null,
        };

        const selectCallbacks = new Set();
        const customActions = new Set();

        const xrayHiddenElements = new Set();
        let lastMouseX = 0;
        let lastMouseY = 0;

        const icons = {
            grip: `<svg width="14" height="14" viewBox="0 0 24 24" fill="none" stroke="currentColor" strokeWidth="2" strokeLinecap="round" strokeLinejoin="round"><circle cx="9" cy="12" r="1"/><circle cx="9" cy="5" r="1"/><circle cx="9" cy="19" r="1"/><circle cx="15" cy="12" r="1"/><circle cx="15" cy="5" r="1"/><circle cx="15" cy="19" r="1"/></svg>`,
            mouse: `<svg width="14" height="14" viewBox="0 0 24 24" fill="none" stroke="currentColor" strokeWidth="2" strokeLinecap="round" strokeLinejoin="round"><path d="M3 3l7.07 16.97 2.51-7.39 7.39-2.51L3 3z"/><path d="M13 13l6 6"/></svg>`,
            copy: `<svg width="14" height="14" viewBox="0 0 24 24" fill="none" stroke="currentColor" strokeWidth="2" strokeLinecap="round" strokeLinejoin="round"><rect x="9" y="9" width="13" height="13" rx="2" ry="2"/><path d="M5 15H4a2 2 0 0 1-2-2V4a2 2 0 0 1 2-2h9a2 2 0 0 1 2 2v1"/></svg>`,
            check: `<svg width="14" height="14" viewBox="0 0 24 24" fill="none" stroke="currentColor" strokeWidth="2" strokeLinecap="round" strokeLinejoin="round"><polyline points="20 6 9 17 4 12"/></svg>`,
            x: `<svg width="14" height="14" viewBox="0 0 24 24" fill="none" stroke="currentColor" strokeWidth="2" strokeLinecap="round" strokeLinejoin="round"><line x1="18" y1="6" x2="6" y2="18"/><line x1="6" y1="6" x2="18" y2="18"/></svg>`,
            lock: `<svg width="14" height="14" viewBox="0 0 24 24" fill="none" stroke="currentColor" strokeWidth="2" strokeLinecap="round" strokeLinejoin="round"><rect x="3" y="11" width="18" height="11" rx="2" ry="2"/><path d="M7 11V7a5 5 0 0 1 10 0v4"/></svg>`,
        };

        const host = document.createElement("div");
        host.id = "element-picker-host";
        host.style.cssText = "position: fixed; inset: 0; z-index: 2147483647; pointer-events: none;";
        const shadow = host.attachShadow({ mode: "closed" });
        (document.body || document.documentElement).appendChild(host);

        const style = document.createElement("style");
        style.textContent = `
            :host { 
                /* Theme Variables - Dark Mode Default */
                --ep-primary: #0070F3;
                --ep-bg: #111111;
                --ep-text: #EDEDED;
                --ep-text-muted: rgba(255, 255, 255, 0.7);
                --ep-border: rgba(255, 255, 255, 0.08);
                --ep-divider: rgba(255, 255, 255, 0.15);
                --ep-pill-bg: rgba(255, 255, 255, 0.04);
                
                --ep-highlight-border: rgba(128, 128, 128, 0.5);
                --ep-badge-bg: #111111;
                --ep-badge-text: #ffffff;
                
                --ep-btn-bg: #ffffff;
                --ep-btn-text: #000000;

                font-family: ui-sans-serif, system-ui, -apple-system, sans-serif; 
            }

            .ep-highlight { position: fixed; pointer-events: none; transition: all 0.1s cubic-bezier(0.2, 0, 0, 1); z-index: 9998; }
            .ep-highlight-border { position: absolute; inset: 0; border: 1.5px solid; transition: border-color 0.15s, opacity 0.15s; }
            .ep-highlight-badge { position: absolute; top: -28px; left: 0; padding: 4px 8px; display: flex; align-items: center; gap: 6px; border-radius: 4px; font-size: 11px; font-family: ui-monospace, monospace; font-weight: 500; box-shadow: 0 1px 2px rgba(0,0,0,0.05); transition: background-color 0.15s, color 0.15s; white-space: nowrap; max-width: 90vw;}
            
            .ep-badge-divider { width: 1px; height: 12px; background: currentColor; opacity: 0.25; margin: 0 2px; }
            .ep-badge-metrics { opacity: 0.9; display: flex; align-items: center; gap: 2px; font-size: 10.5px; }
            .ep-badge-times { opacity: 0.5; font-size: 9px; margin-top: 1px; }
            .ep-badge-tag { color: var(--ep-primary); font-weight: 700; text-transform: lowercase; }
            .ep-badge-extra { color: currentColor; opacity: 0.7; font-style: italic; overflow: hidden; text-overflow: ellipsis; max-width: 150px; display: inline-block; vertical-align: bottom; }

            .ep-ui-bar { position: fixed; bottom: 32px; left: 50%; transform: translateX(-50%); background-color: var(--ep-bg); color: var(--ep-text); border: 1px solid var(--ep-border); box-shadow: 0 12px 24px -4px rgba(0,0,0,0.2); border-radius: 9999px; height: 40px; padding: 0 6px; display: flex; align-items: center; animation: ep-slide-up 0.2s ease-out forwards; pointer-events: auto; z-index: 10000; box-sizing: border-box; max-width: 95vw; }
            
            .ep-drag-handle { display: flex; align-items: center; padding: 0 4px; opacity: 0.4; cursor: grab; }
            .ep-drag-handle:active { cursor: grabbing; opacity: 0.8; }
            
            .ep-path-pill { display: flex; align-items: center; gap: 10px; padding: 0 16px 0 12px; height: 28px; background: var(--ep-pill-bg); border: 1px solid var(--ep-pill-bg); border-radius: 9999px; margin-left: 4px; overflow: hidden; flex: 1; }
            
            .ep-ping-container { position: relative; display: flex; width: 6px; height: 6px; flex-shrink: 0;}
            .ep-ping-dot { position: relative; display: inline-flex; border-radius: 50%; width: 6px; height: 6px; transition: opacity 0.2s, background-color 0.2s; }
            .ep-ping-anim { position: absolute; display: inline-flex; width: 100%; height: 100%; border-radius: 50%; background-color: var(--ep-primary); opacity: 0.6; animation: ep-ping 1.5s cubic-bezier(0, 0, 0.2, 1) infinite; }
            
            .ep-breadcrumbs { display: flex; align-items: center; overflow-x: auto; font-size: 12px; font-family: ui-monospace, monospace; color: var(--ep-text-muted); scrollbar-width: none; white-space: nowrap; mask-image: linear-gradient(to right, transparent, black 10px, black 95%, transparent); padding: 0 10px; }
            .ep-breadcrumbs::-webkit-scrollbar { display: none; }
            .ep-crumb { cursor: pointer; padding: 2px 4px; border-radius: 4px; transition: background 0.15s, color 0.15s; }
            .ep-crumb:hover { background: var(--ep-divider); color: var(--ep-text); }
            .ep-crumb.active { color: var(--ep-text); font-weight: 600; }
            .ep-crumb-sep { opacity: 0.3; margin: 0 2px; user-select: none; }
            
            .ep-nav-divider { width: 1px; height: 14px; background: var(--ep-text); opacity: 0.1; margin: 0 2px 0 4px; flex-shrink: 0; }
            .ep-nav-hint { display: flex; align-items: center; gap: 4px; opacity: 0.4; user-select: none; flex-shrink: 0; }
            .ep-nav-text { font-family: ui-sans-serif, system-ui, sans-serif; font-size: 9px; text-transform: uppercase; letter-spacing: 0.05em; font-weight: 600; }
            .ep-nav-arrows { display: flex; align-items: center; gap: 2px; font-size: 11px; margin-top: 1px; }

            .ep-actions { display: flex; align-items: center; gap: 2px; margin-left: 4px; flex-shrink: 0; }
            .ep-divider { width: 1px; height: 14px; background: var(--ep-divider); margin: 0 6px; }
            
            .ep-btn-icon { width: 28px; height: 28px; background: none; border: none; padding: 0; border-radius: 50%; display: flex; align-items: center; justify-content: center; cursor: pointer; color: var(--ep-text-muted); transition: all 0.15s; flex-shrink: 0; }
            .ep-btn-icon:hover:not(:disabled) { background: var(--ep-pill-bg); color: var(--ep-text); }
            .ep-btn-icon:disabled { opacity: 0.3; cursor: not-allowed; }
            
            .ep-btn-text { height: 28px; background: var(--ep-btn-bg); color: var(--ep-btn-text); border: none; padding: 0 12px; font-size: 12px; font-weight: 500; border-radius: 9999px; cursor: pointer; transition: filter 0.15s; margin: 0 2px; display: flex; align-items: center; white-space: nowrap; flex-shrink: 0; }
            .ep-btn-text:hover { filter: brightness(0.9); }
            
            .ep-btn-primary { background: var(--ep-primary); color: #fff; }
            
            @keyframes ep-ping { 75%, 100% { transform: scale(2.5); opacity: 0; } }
            @keyframes ep-slide-up { from { opacity: 0; transform: translate(-50%, 16px); } to { opacity: 1; transform: translate(-50%, 0); } }
        `;

        const highlightLayer = document.createElement("div");
        highlightLayer.className = "ep-highlight";
        highlightLayer.style.display = "none";
        const highlightBorder = document.createElement("div");
        highlightBorder.className = "ep-highlight-border";
        const highlightBadge = document.createElement("div");
        highlightBadge.className = "ep-highlight-badge";
        highlightLayer.append(highlightBorder, highlightBadge);

        const uiContainer = document.createElement("div");
        uiContainer.className = "ep-ui-bar";
        uiContainer.style.display = "none";

        shadow.append(style, highlightLayer, uiContainer);

        let rafMouse = null;
        let rafScroll = null;

        let isDragging = false;
        let startX = 0,
            startY = 0;
        let currentX = 0,
            currentY = 0;

        uiContainer.addEventListener("mousedown", (e) => {
            if (e.target.closest("button, .ep-breadcrumbs, .ep-crumb")) return;
            isDragging = true;
            const rect = uiContainer.getBoundingClientRect();
            uiContainer.style.animation = "none";
            uiContainer.style.transform = "none";
            uiContainer.style.bottom = "auto";
            uiContainer.style.left = `${rect.left}px`;
            uiContainer.style.top = `${rect.top}px`;
            startX = e.clientX;
            startY = e.clientY;
            currentX = rect.left;
            currentY = rect.top;
            document.addEventListener("mousemove", onDragMove);
            document.addEventListener("mouseup", onDragEnd);
        });

        const onDragMove = (e) => {
            if (!isDragging) return;
            const rect = uiContainer.getBoundingClientRect();
            const maxX = window.innerWidth - rect.width;
            const maxY = window.innerHeight - rect.height;
            const newX = Math.max(0, Math.min(currentX + (e.clientX - startX), maxX));
            const newY = Math.max(0, Math.min(currentY + (e.clientY - startY), maxY));
            currentX = newX;
            currentY = newY;
            uiContainer.style.left = `${currentX}px`;
            uiContainer.style.top = `${currentY}px`;
            startX = e.clientX;
            startY = e.clientY;
        };

        const onDragEnd = () => {
            isDragging = false;
            document.removeEventListener("mousemove", onDragMove);
            document.removeEventListener("mouseup", onDragEnd);
        };

        const generateUniqueSelector = (el) => {
            if (!el || el.nodeType !== Node.ELEMENT_NODE) return "";
            const isUnique = (selector) => {
                try {
                    const matches = document.querySelectorAll(selector);
                    return matches.length === 1 && matches[0] === el;
                } catch (e) {
                    return false;
                }
            };

            if (el.id) {
                const idSelector = `#${CSS.escape(el.id)}`;
                if (isUnique(idSelector)) return idSelector;
            }

            for (const attr of ["data-testid", "data-cy", "data-test"]) {
                if (el.hasAttribute(attr)) {
                    const dataSelector = `[${attr}="${CSS.escape(el.getAttribute(attr))}"]`;
                    if (isUnique(dataSelector)) return dataSelector;
                }
            }

            if (el.hasAttribute("name")) {
                const nameSelector = `${el.tagName.toLowerCase()}[name="${CSS.escape(el.getAttribute("name"))}"]`;
                if (isUnique(nameSelector)) return nameSelector;
            }

            const path = [];
            let current = el;

            while (current && current.nodeType === Node.ELEMENT_NODE) {
                let selectorPart = current.tagName.toLowerCase();

                if (current.id) {
                    selectorPart = `#${CSS.escape(current.id)}`;
                    path.unshift(selectorPart);
                    if (isUnique(path.join(" > "))) return path.join(" > ");
                    break;
                }

                const classes = Array.from(current.classList).filter((c) => !c.startsWith("hover:") && !c.startsWith("focus:"));
                if (classes.length > 0) selectorPart += `.${classes.map(CSS.escape).join(".")}`;

                let needsNthChild = false;
                if (current.parentElement) {
                    const siblings = Array.from(current.parentElement.children);
                    const similarSiblings = siblings.filter((s) => {
                        if (s.tagName.toLowerCase() !== current.tagName.toLowerCase()) return false;
                        const sClasses = Array.from(s.classList).filter((c) => !c.startsWith("hover:") && !c.startsWith("focus:"));
                        return classes.join(".") === sClasses.join(".");
                    });
                    if (similarSiblings.length > 1) needsNthChild = true;
                }

                if (needsNthChild) {
                    const index = Array.from(current.parentNode.children).indexOf(current) + 1;
                    selectorPart += `:nth-child(${index})`;
                }

                path.unshift(selectorPart);
                if (isUnique(path.join(" > "))) return path.join(" > ");
                current = current.parentElement;
            }
            return path.join(" > ");
        };

        const renderUI = () => {
            const target = state.isLocked ? state.selectedElement : state.hoveredElement;
            const selectorStr = target ? generateUniqueSelector(target) : "";

            const actionsHTML = Array.from(customActions)
                .map(
                    (action) => `
                <button class="ep-btn-text ${action.primary ? "ep-btn-primary" : ""}" id="${action.id}">
                    ${action.label}
                </button>
                `,
                )
                .join("");

            uiContainer.innerHTML = `
                <div class="ep-drag-handle" title="Drag to move">${icons.grip}</div>
                <div class="ep-path-pill">
                    <div class="ep-ping-container">
                        ${!state.isLocked ? '<span class="ep-ping-anim"></span>' : ""}
                        <span class="ep-ping-dot" style="background-color: var(--ep-primary); opacity: ${state.isLocked ? "1" : "0.8"};"></span>
                    </div>
                    <div class="ep-breadcrumbs" id="ep-breadcrumbs-container"></div>
                    ${
                        state.isLocked
                            ? `
                        <div class="ep-nav-divider"></div>
                        <div class="ep-nav-hint"><span class="ep-nav-text">Nav</span><span class="ep-nav-arrows"><span>↑</span><span>↓</span></span></div>
                    `
                            : ""
                    }
                </div>
                <div class="ep-actions">
                    <button class="ep-btn-icon" id="ep-btn-copy" title="Copy selector" ${!target ? "disabled" : ""}>
                        ${icons.copy}
                    </button>
                    <div class="ep-divider"></div>
                    ${
                        state.isLocked
                            ? `
                        ${actionsHTML}
                        <button class="ep-btn-icon" id="ep-btn-deselect" title="Unlock selection">${icons.x}</button>
                    `
                            : `
                        <button class="ep-btn-icon" id="ep-btn-close" title="Close Picker (Esc)">${icons.x}</button>
                    `
                    }
                </div>
            `;

            const breadcrumbsContainer = uiContainer.querySelector("#ep-breadcrumbs-container");
            if (target && breadcrumbsContainer) {
                const path = [];
                let curr = target;
                while (curr && path.length < 5) {
                    path.unshift(curr);
                    if (curr.tagName.toLowerCase() === "html") break;
                    curr = curr.parentElement;
                }

                path.forEach((el, index) => {
                    const isLast = index === path.length - 1;
                    const crumb = document.createElement("span");
                    crumb.className = `ep-crumb ${isLast ? "active" : ""}`;
                    crumb.textContent = el.tagName.toLowerCase() + (el.id ? `#${el.id}` : el.classList.length ? `.${el.classList[0]}` : "");
                    crumb.title = generateUniqueSelector(el);

                    crumb.addEventListener("click", () => setSelectedElement(el));
                    breadcrumbsContainer.appendChild(crumb);

                    if (!isLast) {
                        const sep = document.createElement("span");
                        sep.className = "ep-crumb-sep";
                        sep.textContent = "›";
                        breadcrumbsContainer.appendChild(sep);
                    }
                });

                requestAnimationFrame(() => {
                    breadcrumbsContainer.scrollLeft = breadcrumbsContainer.scrollWidth;
                });
            } else if (!target && breadcrumbsContainer) {
                breadcrumbsContainer.textContent = "Hover an element...";
            }

            const copyBtn = uiContainer.querySelector("#ep-btn-copy");
            if (copyBtn)
                copyBtn.addEventListener("click", () => {
                    if (target) {
                        navigator.clipboard.writeText(selectorStr);
                        copyBtn.innerHTML = icons.check;
                        setTimeout(() => (copyBtn.innerHTML = icons.copy), 2000);
                    }
                });

            const closeBtn = uiContainer.querySelector("#ep-btn-close");
            if (closeBtn) closeBtn.addEventListener("click", disable);

            const deselectBtn = uiContainer.querySelector("#ep-btn-deselect");
            if (deselectBtn)
                deselectBtn.addEventListener("click", () => {
                    state.isLocked = false;
                    state.selectedElement = null;
                    renderUI();
                    updateLayer(state.hoveredElement);
                });

            if (state.isLocked) {
                for (const action of customActions) {
                    const btn = uiContainer.querySelector(`#${action.id}`);
                    if (btn && typeof action.onClick === "function") {
                        btn.addEventListener("click", () => {
                            if (target) action.onClick(target);
                        });
                    }
                }
            }
        };

        const updateLayer = (element) => {
            if (!element?.isConnected) {
                highlightLayer.style.display = "none";
                return;
            }

            const rect = element.getBoundingClientRect();
            Object.assign(highlightLayer.style, {
                display: "block",
                left: `${rect.left}px`,
                top: `${rect.top}px`,
                width: `${rect.width}px`,
                height: `${rect.height}px`,
            });

            highlightBorder.style.borderColor = state.isLocked ? "var(--ep-primary)" : "var(--ep-highlight-border)";
            highlightBorder.style.opacity = state.isLocked ? "1" : "0.4";
            highlightBadge.style.backgroundColor = state.isLocked ? "var(--ep-primary)" : "var(--ep-badge-bg)";
            highlightBadge.style.color = state.isLocked ? "#fff" : "var(--ep-badge-text)";

            const metricsHTML =
                Math.round(rect.width) > 0
                    ? `
                <div class="ep-badge-divider"></div>
                <span class="ep-badge-metrics">${Math.round(rect.width)}<span class="ep-badge-times">×</span>${Math.round(rect.height)}</span>
            `
                    : "";

            let extraInfo = "";
            if (element.tagName === "A" && element.href) extraInfo = `<span class="ep-badge-extra" title="${element.href}">${element.getAttribute("href")}</span>`;
            if (element.tagName === "IMG" && element.src) extraInfo = `<span class="ep-badge-extra" title="${element.src}">${element.getAttribute("src")}</span>`;

            highlightBadge.innerHTML = `
                ${state.isLocked ? icons.lock : ""}
                <span style="display: flex; align-items: center; gap: 4px;">
                    <span class="ep-badge-tag">${element.tagName.toLowerCase()}</span>
                    <span style="overflow: hidden; text-overflow: ellipsis;">${element.id ? `#${element.id}` : element.className && typeof element.className === "string" ? `.${element.className.split(" ").join(".")}` : ""}</span>
                    ${extraInfo}
                </span>
                ${metricsHTML}
            `;

            renderUI();
        };

        const handleGlobalMouseMove = (ev) => {
            lastMouseX = ev.clientX;
            lastMouseY = ev.clientY;
        };

        const handleMouseover = (ev) => {
            if (!state.enabled || state.isLocked) return;
            if (ev.composedPath().includes(host)) return;

            const element = ev.composedPath()[0];
            if (!(element instanceof Element)) return;

            if (state.filter && !element.matches(state.filter)) return;
            if (state.exclude && element.matches(state.exclude)) return;

            if (rafMouse) cancelAnimationFrame(rafMouse);
            rafMouse = requestAnimationFrame(() => {
                state.hoveredElement = element;
                updateLayer(element);
            });
        };

        const handleClick = (ev) => {
            if (!state.enabled) return;
            if (ev.composedPath().includes(host)) return;

            ev.preventDefault();
            ev.stopPropagation();

            const element = ev.composedPath()[0];
            if (!(element instanceof Element)) return;

            if (state.filter && !element.matches(state.filter)) return;
            if (state.exclude && element.matches(state.exclude)) return;

            if (state.selectedElement === element) {
                state.isLocked = false;
                state.selectedElement = null;
            } else {
                state.selectedElement = element;
                state.isLocked = true;
            }

            updateLayer(element);
            if (state.isLocked) {
                for (const callback of selectCallbacks) callback(element);
            }
        };

        const handleScroll = () => {
            if (!state.enabled) return;
            if (rafScroll) cancelAnimationFrame(rafScroll);
            rafScroll = requestAnimationFrame(() => {
                updateLayer(state.isLocked ? state.selectedElement : state.hoveredElement);
            });
        };

        const handleKeydown = (ev) => {
            if (globalConfig.toggleHotkey) {
                const keys = globalConfig.toggleHotkey.toLowerCase().split("+");
                const isMatch = keys.every((key) => {
                    if (key === "ctrl") return ev.ctrlKey;
                    if (key === "shift") return ev.shiftKey;
                    if (key === "alt") return ev.altKey;
                    return ev.key.toLowerCase() === key;
                });
                if (isMatch) {
                    ev.preventDefault();
                    toggle();
                    return;
                }
            }

            if (!state.enabled) return;

            if (ev.key === "Alt" && !state.isLocked) {
                ev.preventDefault();
                const hoverEl = state.hoveredElement;
                if (hoverEl) {
                    hoverEl.style.setProperty("pointer-events", "none", "important");
                    xrayHiddenElements.add(hoverEl);

                    const elementBeneath = document.elementFromPoint(lastMouseX, lastMouseY);
                    if (elementBeneath && elementBeneath !== hoverEl) {
                        state.hoveredElement = elementBeneath;
                        updateLayer(elementBeneath);
                    }
                }
            }

            if (ev.key === "Escape") {
                ev.preventDefault();
                disable();
                return;
            }

            if (state.isLocked && state.selectedElement) {
                const keys = ["ArrowUp", "ArrowDown", "ArrowLeft", "ArrowRight"];
                if (keys.includes(ev.key)) {
                    ev.preventDefault();
                    let nextEl = null;
                    const current = state.selectedElement;

                    if (ev.key === "ArrowUp") {
                        nextEl = current.parentElement;
                        if (nextEl === document.documentElement || nextEl === document.body) nextEl = null;
                    } else if (ev.key === "ArrowDown") {
                        nextEl = current.firstElementChild;
                    } else if (ev.key === "ArrowRight") {
                        nextEl = current.nextElementSibling;
                    } else if (ev.key === "ArrowLeft") {
                        nextEl = current.previousElementSibling;
                    }

                    if (nextEl && !ev.composedPath().includes(host)) {
                        setSelectedElement(nextEl);
                        nextEl.scrollIntoView({ block: "nearest", inline: "nearest", behavior: "smooth" });
                    }
                }
            }
        };

        const handleKeyup = (ev) => {
            if (ev.key === "Alt" && xrayHiddenElements.size > 0) {
                xrayHiddenElements.forEach((el) => el.style.removeProperty("pointer-events"));
                xrayHiddenElements.clear();

                const elementTop = document.elementFromPoint(lastMouseX, lastMouseY);
                if (elementTop && !state.isLocked) {
                    state.hoveredElement = elementTop;
                    updateLayer(elementTop);
                }
            }
        };

        const enable = (options = {}) => {
            if (state.enabled) return;
            state.enabled = true;
            state.isLocked = false;

            state.filter = options.filter || null;
            state.exclude = options.exclude || null;

            uiContainer.style.animation = "";
            uiContainer.style.transform = "translateX(-50%)";
            uiContainer.style.bottom = "32px";
            uiContainer.style.left = "50%";
            uiContainer.style.top = "auto";
            uiContainer.style.display = "flex";

            renderUI();

            document.addEventListener("mousemove", handleGlobalMouseMove, true);
            document.addEventListener("mouseover", handleMouseover, true);
            document.addEventListener("click", handleClick, true);
            document.addEventListener("scroll", handleScroll, true);
            window.addEventListener("resize", handleScroll, true);
        };

        const disable = () => {
            if (!state.enabled) return;
            state.enabled = false;
            state.isLocked = false;
            state.hoveredElement = null;
            state.selectedElement = null;

            xrayHiddenElements.forEach((el) => el.style.removeProperty("pointer-events"));
            xrayHiddenElements.clear();

            document.removeEventListener("mousemove", handleGlobalMouseMove, true);
            document.removeEventListener("mouseover", handleMouseover, true);
            document.removeEventListener("click", handleClick, true);
            document.removeEventListener("scroll", handleScroll, true);
            window.removeEventListener("resize", handleScroll, true);

            if (rafMouse) cancelAnimationFrame(rafMouse);
            if (rafScroll) cancelAnimationFrame(rafScroll);

            highlightLayer.style.display = "none";
            uiContainer.style.display = "none";
        };

        const toggle = (options) => (state.enabled ? disable() : enable(options));

        const onSelect = (callback) => {
            selectCallbacks.add(callback);
            return () => selectCallbacks.delete(callback);
        };

        const pickOnce = (options = {}) => {
            return new Promise((resolve) => {
                enable(options);
                const unsubscribe = onSelect((element) => {
                    unsubscribe();
                    disable();
                    resolve(element);
                });
            });
        };

        const addAction = ({ label, primary = false, onClick }) => {
            const id = `ep-action-${Date.now()}-${Math.floor(Math.random() * 1000)}`;
            const action = { id, label, primary, onClick };
            customActions.add(action);
            if (state.enabled && state.isLocked) renderUI();
            return id;
        };

        const removeAction = (id) => {
            for (const action of customActions) {
                if (action.id === id) {
                    customActions.delete(action);
                    break;
                }
            }
            if (state.enabled && state.isLocked) renderUI();
        };

        const removeAllActions = () => {
            customActions.clear();
            if (state.enabled && state.isLocked) renderUI();
        };

        const setTheme = (colors = {}) => {
            const cssVarMapping = {
                primary: "--ep-primary",
                background: "--ep-bg",
                text: "--ep-text",
                textMuted: "--ep-text-muted",
                border: "--ep-border",
                divider: "--ep-divider",
                pillBackground: "--ep-pill-bg",
                highlightBorder: "--ep-highlight-border",
                badgeBackground: "--ep-badge-bg",
                badgeText: "--ep-badge-text",
                buttonBackground: "--ep-btn-bg",
                buttonText: "--ep-btn-text",
            };
            for (const [key, value] of Object.entries(colors)) {
                if (cssVarMapping[key] && value) host.style.setProperty(cssVarMapping[key], value);
            }
        };

        const getHoveredElement = () => state.hoveredElement;
        const getSelectedElement = () => state.selectedElement;
        const isEnabled = () => state.enabled;

        const setSelectedElement = (element) => {
            if (!(element instanceof Element)) return;
            state.selectedElement = element;
            state.isLocked = true;
            updateLayer(element);
            for (const callback of selectCallbacks) callback(element);
        };

        const refresh = () => updateLayer(state.isLocked ? state.selectedElement : state.hoveredElement);

        const destroy = () => {
            disable();
            document.removeEventListener("keydown", handleKeydown, true);
            document.removeEventListener("keyup", handleKeyup, true);
            selectCallbacks.clear();
            customActions.clear();
            host.remove();
        };

        document.addEventListener("keydown", handleKeydown, true);
        document.addEventListener("keyup", handleKeyup, true);

        return {
            enable,
            disable,
            toggle,
            pickOnce,
            isEnabled,
            getHoveredElement,
            getSelectedElement,
            setSelectedElement,
            onSelect,
            addAction,
            removeAction,
            removeAllActions,
            setTheme,
            refresh,
            destroy,
        };
    }

    Object.defineProperty(globalThis, "elementPicker", {
        value: elementPicker,
        writable: false,
    });
})();