Element Picker

Reusable element picker library for userscripts.

Este script não deve ser instalado diretamente. É uma biblioteca destinada a ser incluída por outros scripts através da diretiva de metadados // @require https://update.greasyfork.org/scripts/589922/1893812/Element%20Picker.js

Terá de instalar uma extensão como Tampermonkey, Greasemonkey ou Violentmonkey para instalar este script.

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

Terá de instalar uma extensão como Tampermonkey ou Violentmonkey para instalar este script.

Terá de instalar uma extensão como Tampermonkey ou Userscripts para instalar este script.

Terá de instalar uma extensão como Tampermonkey para instalar este script.

Terá de instalar uma extensão de gestão de scripts de utilizador para instalar este script.

(Já tenho um gestor de scripts de utilizador, deixe-me instalá-lo!)

Terá de instalar uma extensão como Stylus para instalar este estilo.

Terá de instalar uma extensão como Stylus para instalar este estilo.

Terá de instalar uma extensão como Stylus para instalar este estilo.

Terá de instalar uma extensão de gestão de estilos de utilizador para instalar este estilo.

Terá de instalar uma extensão de gestão de estilos de utilizador para instalar este estilo.

Terá de instalar uma extensão de gestão de estilos de utilizador para instalar este estilo.

(Já tenho um gestor de estilos de utilizador, deixe-me instalá-lo!)

// ==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,
    });
})();