Datasets:

TIGER-Lab
/

WebsiteBench

// IMDb offline clone - authored local interactions. No remote requests.
(function () {
  "use strict";

  var PREFERRED_SERVICES_KEY = "websitebench.imdb.preferredServices.v1";
  var RECENTLY_VIEWED_KEY = "websitebench.imdb.recentlyViewed.v1";

  function readLocalArray(key) {
    try {
      var value = JSON.parse(window.localStorage.getItem(key) || "[]");
      return Array.isArray(value) ? value : [];
    } catch (_error) {
      return [];
    }
  }

  function writeLocalArray(key, value) {
    try {
      window.localStorage.setItem(key, JSON.stringify(value));
    } catch (_error) {
      // Storage may be unavailable in a restricted browser; the page remains usable.
    }
  }

  function normalizeRecentEntries(entries) {
    var prefixes = { title: "/title/", person: "/name/", video: "/video/" };
    var idPatterns = {
      title: /^tt\d{7,8}$/,
      person: /^nm\d{7}$/,
      video: /^local-feature-(?:0[1-9]|1[0-6])$/
    };
    var posterPrefixes = ["/static/assets/", "/media-assets/posters/", "/media-assets/people/"];
    var seen = new Set();
    var normalized = [];
    entries.some(function (item) {
      if (!item || !prefixes[item.kind] || typeof item.id !== "string" ||
          !idPatterns[item.kind].test(item.id) || typeof item.title !== "string" ||
          !item.title.trim() || item.title.length > 300 || typeof item.poster !== "string" ||
          item.poster.indexOf("?") !== -1 || item.poster.indexOf("#") !== -1 ||
          item.poster.indexOf("\\") !== -1 || item.poster.indexOf("//") === 0 ||
          !posterPrefixes.some(function (prefix) { return item.poster.indexOf(prefix) === 0; })) {
        return false;
      }
      var decodedPoster;
      try {
        decodedPoster = decodeURIComponent(item.poster);
      } catch (_error) {
        return false;
      }
      if (decodedPoster.split("/").some(function (segment) {
        return segment === "." || segment === "..";
      })) {
        return false;
      }
      var identity = item.kind + ":" + item.id;
      if (seen.has(identity)) {
        return false;
      }
      seen.add(identity);
      normalized.push({
        kind: item.kind,
        id: item.id,
        title: item.title.trim(),
        href: prefixes[item.kind] + item.id + "/",
        poster: item.poster
      });
      return normalized.length === 20;
    });
    return normalized;
  }

  function onReady(callback) {
    if (document.readyState !== "loading") {
      callback();
    } else {
      document.addEventListener("DOMContentLoaded", callback);
    }
  }

  onReady(function () {
    // IMDb navigation drawer.
    var navToggle = document.querySelector(".nav-toggle");
    var headerMenu = document.getElementById("header-menu");
    var drawerClose = document.querySelector(".drawer-close");
    var drawerScrim = document.querySelector(".drawer-scrim");
    var drawerReturnFocus = null;
    function setDrawer(open) {
      if (!navToggle || !headerMenu) {
        return;
      }
      navToggle.setAttribute("aria-expanded", String(open));
      headerMenu.setAttribute("aria-hidden", String(!open));
      headerMenu.classList.toggle("is-open", open);
      document.body.classList.toggle("drawer-open", open);
      if (drawerScrim) {
        drawerScrim.hidden = !open;
      }
      if (open && drawerClose) {
        drawerReturnFocus = document.activeElement;
        drawerClose.focus();
      } else if (!open && drawerReturnFocus && drawerReturnFocus.focus) {
        drawerReturnFocus.focus();
      }
    }
    if (navToggle && headerMenu) {
      navToggle.addEventListener("click", function () {
        var expanded = navToggle.getAttribute("aria-expanded") === "true";
        setDrawer(!expanded);
      });
    }
    if (drawerClose) {
      drawerClose.addEventListener("click", function () { setDrawer(false); });
    }
    if (drawerScrim) {
      drawerScrim.addEventListener("click", function () { setDrawer(false); });
    }
    document.querySelectorAll(".drawer-group-toggle").forEach(function (toggle) {
      toggle.addEventListener("click", function () {
        var panel = document.getElementById(toggle.getAttribute("aria-controls"));
        if (!panel) {
          return;
        }
        var expanded = toggle.getAttribute("aria-expanded") === "true";
        toggle.setAttribute("aria-expanded", String(!expanded));
        panel.hidden = expanded;
      });
    });
    var languageToggle = document.querySelector(".drawer-language");
    var languageOptions = document.getElementById("drawer-language-options");
    if (languageToggle && languageOptions) {
      languageToggle.addEventListener("click", function () {
        var expanded = languageToggle.getAttribute("aria-expanded") === "true";
        languageToggle.setAttribute("aria-expanded", String(!expanded));
        languageOptions.hidden = expanded;
      });
    }

    function dialogFocusableElements(dialogRoot) {
      return Array.prototype.slice.call(dialogRoot.querySelectorAll(
        "a[href], button:not([disabled]), input:not([disabled]), select:not([disabled]), textarea:not([disabled]), [tabindex]:not([tabindex='-1'])"
      )).filter(function (element) {
        return !element.hidden && element.getClientRects().length > 0;
      });
    }

    function setDialogBackgroundInert(dialogRoot, inert) {
      Array.prototype.slice.call(document.body.children).forEach(function (element) {
        if (element === dialogRoot) { return; }
        if (inert) {
          if (!element.inert) {
            element.inert = true;
            element.dataset.dialogInertOwner = dialogRoot.id;
          }
        } else if (element.dataset.dialogInertOwner === dialogRoot.id) {
          element.inert = false;
          delete element.dataset.dialogInertOwner;
        }
      });
    }

    function trapDialogTab(event, dialogRoot) {
      if (event.key !== "Tab" || !dialogRoot || dialogRoot.hidden) { return; }
      var focusable = dialogFocusableElements(dialogRoot);
      if (!focusable.length) {
        event.preventDefault();
        return;
      }
      var first = focusable[0];
      var last = focusable[focusable.length - 1];
      if (!dialogRoot.contains(document.activeElement)) {
        event.preventDefault();
        first.focus();
      } else if (event.shiftKey && document.activeElement === first) {
        event.preventDefault();
        last.focus();
      } else if (!event.shiftKey && document.activeElement === last) {
        event.preventDefault();
        first.focus();
      }
    }

    // The header account affordance opens an accessible same-page dialog;
    // its sign-in link remains the exact current return URL without JS.
    var accountDialog = document.getElementById("account-dialog");
    var accountReturnFocus = null;
    function closeAccountDialog() {
      if (!accountDialog || accountDialog.hidden) { return; }
      accountDialog.hidden = true;
      setDialogBackgroundInert(accountDialog, false);
      if (accountReturnFocus && accountReturnFocus.focus) { accountReturnFocus.focus(); }
    }
    document.querySelectorAll("[data-account-open]").forEach(function (opener) {
      opener.addEventListener("click", function (event) {
        if (!accountDialog) { return; }
        event.preventDefault();
        closeLanguageDialog();
        accountReturnFocus = opener;
        accountDialog.hidden = false;
        setDialogBackgroundInert(accountDialog, true);
        accountDialog.querySelector("[data-account-close]").focus();
      });
    });
    if (accountDialog) {
      accountDialog.querySelector("[data-account-close]").addEventListener("click", closeAccountDialog);
      accountDialog.addEventListener("click", function (event) {
        if (event.target === accountDialog) { closeAccountDialog(); }
      });
      accountDialog.addEventListener("keydown", function (event) {
        trapDialogTab(event, accountDialog);
      });
    }

    // Desktop language control mirrors the drawer's explicit single-language
    // state. The button opens a dialog and the choice confirms local state.
    var languageDialog = document.getElementById("language-dialog");
    var languageReturnFocus = null;
    function closeLanguageDialog() {
      if (!languageDialog || languageDialog.hidden) { return; }
      languageDialog.hidden = true;
      setDialogBackgroundInert(languageDialog, false);
      if (languageReturnFocus && languageReturnFocus.focus) { languageReturnFocus.focus(); }
    }
    document.querySelectorAll("[data-language-open]").forEach(function (opener) {
      opener.addEventListener("click", function () {
        if (!languageDialog) { return; }
        closeAccountDialog();
        languageReturnFocus = opener;
        languageDialog.hidden = false;
        setDialogBackgroundInert(languageDialog, true);
        languageDialog.querySelector("[data-language-close]").focus();
      });
    });
    if (languageDialog) {
      languageDialog.querySelector("[data-language-close]").addEventListener("click", closeLanguageDialog);
      languageDialog.querySelector("[data-language-choice]").addEventListener("click", function (event) {
        event.currentTarget.setAttribute("aria-pressed", "true");
        languageDialog.querySelector("[data-language-status]").textContent = "English (United States) remains selected.";
      });
      languageDialog.addEventListener("click", function (event) {
        if (event.target === languageDialog) { closeLanguageDialog(); }
      });
      languageDialog.addEventListener("keydown", function (event) {
        trapDialogTab(event, languageDialog);
      });
    }

    // The reserved sponsored area contains no fabricated ad. Its close button
    // produces an explicit DOM state change and removes the reserved height.
    var adSlot = document.querySelector("[data-ad-slot]");
    var adClose = document.querySelector("[data-ad-close]");
    if (adSlot && adClose) {
      adClose.addEventListener("click", function () {
        adSlot.dataset.state = "closed";
        adSlot.hidden = true;
      });
    }

    // Homepage featured-trailer carousel. Every visible arrow changes content.
    var slides = Array.prototype.slice.call(document.querySelectorAll("[data-hero-slide]"));
    var heroIndex = 0;
    function showHero(index) {
      if (!slides.length) {
        return;
      }
      heroIndex = (index + slides.length) % slides.length;
      slides.forEach(function (slide, slideIndex) {
        slide.hidden = slideIndex !== heroIndex;
      });
      var carousel = document.querySelector("[data-hero-carousel]");
      if (carousel) { carousel.dataset.activeSlide = String(heroIndex); }
      document.querySelectorAll("[data-show-slide]").forEach(function (target) {
        target.setAttribute(
          "aria-pressed",
          String(Number(target.getAttribute("data-show-slide")) === heroIndex)
        );
      });
    }
    var previousHero = document.querySelector("[data-hero-prev]");
    var nextHero = document.querySelector("[data-hero-next]");
    if (previousHero) {
      previousHero.addEventListener("click", function () { showHero(heroIndex - 1); });
    }
    if (nextHero) {
      nextHero.addEventListener("click", function () { showHero(heroIndex + 1); });
    }
    document.querySelectorAll("[data-show-slide]").forEach(function (link) {
      link.addEventListener("click", function () {
        showHero(Number(link.getAttribute("data-show-slide")));
      });
    });

    // Streaming service tabs are client-side view filters.
    var preferredAtLoad = readLocalArray(PREFERRED_SERVICES_KEY);
    var serviceTabs = Array.prototype.slice.call(document.querySelectorAll(".service-tab"));
    if (preferredAtLoad.length && serviceTabs.length) {
      var preferredTab = serviceTabs.find(function (tab) {
        return tab.dataset.serviceId === preferredAtLoad[0];
      });
      if (preferredTab) {
        serviceTabs.forEach(function (tab) {
          var selected = tab === preferredTab;
          tab.classList.toggle("is-selected", selected);
          tab.setAttribute("aria-selected", String(selected));
        });
      }
    }
    serviceTabs.forEach(function (tab) {
      tab.addEventListener("click", function () {
        document.querySelectorAll(".service-tab").forEach(function (other) {
          var selected = other === tab;
          other.classList.toggle("is-selected", selected);
          other.setAttribute("aria-selected", String(selected));
        });
        var heading = document.querySelector(".streaming-panel h3");
        var copy = document.querySelector(".streaming-panel p");
        if (heading) {
          heading.textContent = "Catalog picks for " + tab.textContent.trim();
        }
        if (copy) {
          copy.textContent = "Browse titles carrying the " + tab.textContent.trim() + " provider label in the included directory.";
        }
        var panel = document.getElementById("streaming-panel");
        if (panel) { panel.dataset.activeService = tab.dataset.serviceId; }
      });
    });

    // Preferred services are browser-local and apply immediately.
    var preferences = document.querySelector("[data-preferred-services]");
    if (preferences) {
      var choices = Array.prototype.slice.call(
        preferences.querySelectorAll("input[type='checkbox']")
      );
      var preferenceStatus = preferences.querySelector("[data-preferences-status]");
      function showPreferredServices() {
        var selected = choices.filter(function (choice) { return choice.checked; })
          .map(function (choice) { return choice.value; });
        writeLocalArray(PREFERRED_SERVICES_KEY, selected);
        preferenceStatus.textContent = selected.length
          ? selected.length + " preferred service" + (selected.length === 1 ? "" : "s") + " saved."
          : "No preferred services selected.";
      }
      choices.forEach(function (choice) {
        choice.checked = preferredAtLoad.indexOf(choice.value) !== -1;
        choice.addEventListener("change", showPreferredServices);
      });
      preferenceStatus.textContent = preferredAtLoad.length
        ? preferredAtLoad.length + " preferred service" + (preferredAtLoad.length === 1 ? "" : "s") + " saved."
        : "No preferred services selected.";
    }

    // Record only public entity surfaces: title, person, and video.
    var storedRecentEntries = readLocalArray(RECENTLY_VIEWED_KEY);
    var recentEntries = normalizeRecentEntries(storedRecentEntries);
    if (JSON.stringify(recentEntries) !== JSON.stringify(storedRecentEntries)) {
      writeLocalArray(RECENTLY_VIEWED_KEY, recentEntries);
    }
    var recentEntry = document.querySelector("[data-recent-entry]");
    if (recentEntry) {
      var kind = recentEntry.dataset.recentKind;
      if (kind === "title" || kind === "person" || kind === "video") {
        var entry = {
          kind: kind,
          id: recentEntry.dataset.recentId,
          title: recentEntry.dataset.recentTitle,
          href: recentEntry.dataset.recentHref,
          poster: recentEntry.dataset.recentPoster
        };
        recentEntries = normalizeRecentEntries([entry].concat(recentEntries));
        writeLocalArray(RECENTLY_VIEWED_KEY, recentEntries);
      }
    }

    var recentContainer = document.querySelector("[data-recently-viewed]");
    if (recentContainer && recentEntries.length) {
      recentContainer.replaceChildren();
      var recentList = document.createElement("div");
      recentList.className = "recent-list";
      recentEntries.forEach(function (item) {
        if (!item || !(item.kind === "title" || item.kind === "person" || item.kind === "video")) {
          return;
        }
        var link = document.createElement("a");
        link.href = item.href;
        link.className = "recent-card";
        var image = document.createElement("img");
        image.src = item.poster;
        image.alt = "";
        var label = document.createElement("span");
        label.textContent = item.title;
        link.append(image, label);
        recentList.appendChild(link);
      });
      recentContainer.appendChild(recentList);
    }

    // Popular is the default. Preferences prioritize matching services;
    // Watchlist/recent titles are excluded, with Top Rated as no-match fallback.
    var recommendationRoot = document.querySelector("[data-recommendations]");
    if (recommendationRoot) {
      var recommendationCards = Array.prototype.slice.call(
        recommendationRoot.querySelectorAll("[data-recommendation-card]")
      );
      var watchlistIds = new Set(
        (recommendationRoot.dataset.watchlistTitleIds || "").split(",").filter(Boolean)
      );
      var recentTitleIds = new Set(
        recentEntries.filter(function (item) { return item && item.kind === "title"; })
          .map(function (item) { return item.id; })
      );
      var eligible = function (card) {
        return !watchlistIds.has(card.dataset.titleId) && !recentTitleIds.has(card.dataset.titleId);
      };
      var popularCards = recommendationCards.filter(function (card) {
        return card.dataset.source === "popular" && eligible(card);
      });
      var topCards = recommendationCards.filter(function (card) {
        return card.dataset.source === "top" && eligible(card);
      });
      var preferred = readLocalArray(PREFERRED_SERVICES_KEY);
      var selectedCards = popularCards;
      var statusText = "Popular titles";
      if (preferred.length) {
        var matching = popularCards.filter(function (card) {
          var services = (card.dataset.services || "").split(",");
          return preferred.some(function (service) { return services.indexOf(service) !== -1; });
        });
        if (matching.length) {
          var matchingIds = new Set(matching.map(function (card) { return card.dataset.titleId; }));
          selectedCards = matching.concat(popularCards.filter(function (card) {
            return !matchingIds.has(card.dataset.titleId);
          }));
          statusText = "Preferred services first";
        } else {
          selectedCards = topCards;
          statusText = "Top Rated fallback";
        }
      }
      var visibleCards = selectedCards.slice(0, 24);
      var shown = new Set(visibleCards);
      recommendationCards.forEach(function (card) { card.hidden = !shown.has(card); });
      var recommendationGrid = recommendationRoot.querySelector("[data-recommendation-grid]");
      if (recommendationGrid) {
        visibleCards.forEach(function (card) { recommendationGrid.appendChild(card); });
      }
      recommendationRoot.querySelector("[data-recommendation-status]").textContent = statusText;
      recommendationRoot.querySelector("[data-recommendation-empty]").hidden = shown.size !== 0;
    }

    // Watchlist chevron dropdown menu.
    var chevron = document.querySelector(".watchlist-chevron");
    var menu = document.getElementById("watchlist-menu");
    function closeMenu() {
      if (menu && chevron) {
        menu.hidden = true;
        chevron.setAttribute("aria-expanded", "false");
      }
    }
    if (chevron && menu) {
      chevron.addEventListener("click", function (event) {
        event.stopPropagation();
        var open = !menu.hidden;
        menu.hidden = open;
        chevron.setAttribute("aria-expanded", String(!open));
      });
      document.addEventListener("click", function (event) {
        if (!menu.hidden && !menu.contains(event.target)) {
          closeMenu();
        }
      });
    }

    // Rating dialog open/close with Escape support.
    var dialog = document.getElementById("rate-dialog");
    var openers = document.querySelectorAll("[data-open-dialog='rate-dialog']");
    function closeDialog() {
      if (dialog) {
        dialog.hidden = true;
      }
    }
    openers.forEach(function (opener) {
      opener.addEventListener("click", function () {
        if (dialog) {
          dialog.hidden = false;
          var firstStar = dialog.querySelector("input[name='rating']");
          if (firstStar) {
            firstStar.focus();
          }
        }
      });
    });
    if (dialog) {
      var closeButton = dialog.querySelector(".dialog-close");
      if (closeButton) {
        closeButton.addEventListener("click", closeDialog);
      }
      dialog.addEventListener("click", function (event) {
        if (event.target === dialog) {
          closeDialog();
        }
      });
      // Star fill preview on selection.
      var options = Array.prototype.slice.call(
        dialog.querySelectorAll(".star-option")
      );
      options.forEach(function (option, index) {
        var input = option.querySelector("input");
        if (!input) {
          return;
        }
        input.addEventListener("change", function () {
          options.forEach(function (other, otherIndex) {
            other.classList.toggle("filled", otherIndex <= index);
          });
        });
      });
    }

    // Overlay Escape handling closes any open overlay.
    document.addEventListener("keydown", function (event) {
      if (event.key === "Escape") {
        closeDialog();
        closeMenu();
        setDrawer(false);
        closeAccountDialog();
        closeLanguageDialog();
      }
    });

    // Character counters on the create-list form.
    document.querySelectorAll("[data-counter]").forEach(function (field) {
      var counter = document.getElementById(field.getAttribute("data-counter"));
      var max = field.getAttribute("maxlength") || "255";
      if (!counter) {
        return;
      }
      field.addEventListener("input", function () {
        counter.textContent = field.value.length + " of " + max + " characters";
      });
    });

    // Same-origin search suggestions with combobox keyboard semantics.
    var searchForm = document.querySelector("[data-search-form]");
    if (searchForm) {
      var searchInput = searchForm.querySelector("input[name='q']");
      var suggestionBox = document.getElementById("search-suggestions");
      var clearSearch = searchForm.querySelector(".search-clear");
      var searchTimer = null;
      var selectedIndex = -1;
      var suggestionLinks = [];

      function closeSuggestions() {
        suggestionBox.hidden = true;
        searchInput.setAttribute("aria-expanded", "false");
        searchInput.removeAttribute("aria-activedescendant");
        selectedIndex = -1;
      }

      function selectSuggestion(index) {
        suggestionLinks.forEach(function (link, itemIndex) {
          var selected = itemIndex === index;
          link.setAttribute("aria-selected", String(selected));
          link.classList.toggle("is-selected", selected);
        });
        selectedIndex = index;
        if (index >= 0 && suggestionLinks[index]) {
          searchInput.setAttribute("aria-activedescendant", suggestionLinks[index].id);
          suggestionLinks[index].scrollIntoView({ block: "nearest" });
        }
      }

      function renderSuggestions(payload) {
        suggestionBox.replaceChildren();
        suggestionLinks = [];
        if (!payload.suggestions.length) {
          var empty = document.createElement("p");
          empty.className = "suggestion-empty";
          empty.textContent = "No suggestions found";
          suggestionBox.appendChild(empty);
        } else {
          payload.suggestions.forEach(function (suggestion, index) {
            var link = document.createElement("a");
            link.id = "search-suggestion-" + index;
            link.href = suggestion.url;
            link.role = "option";
            link.setAttribute("aria-selected", "false");
            var label = document.createElement("strong");
            label.textContent = suggestion.label;
            var meta = document.createElement("span");
            meta.textContent = suggestion.kind === "person" ? "Person" : suggestion.year;
            link.append(label, meta);
            suggestionBox.appendChild(link);
            suggestionLinks.push(link);
          });
        }
        suggestionBox.hidden = false;
        searchInput.setAttribute("aria-expanded", "true");
      }

      function loadSuggestions() {
        var query = searchInput.value.trim();
        clearSearch.hidden = !query;
        if (query.length < 2) {
          closeSuggestions();
          return;
        }
        fetch("/find/suggest/?q=" + encodeURIComponent(query), {
          headers: { Accept: "application/json" }
        })
          .then(function (response) {
            if (!response.ok) { throw new Error("suggestion request failed"); }
            return response.json();
          })
          .then(renderSuggestions)
          .catch(function () {
            suggestionBox.textContent = "Suggestions are temporarily unavailable.";
            suggestionBox.hidden = false;
            searchInput.setAttribute("aria-expanded", "true");
          });
      }

      searchInput.addEventListener("input", function () {
        window.clearTimeout(searchTimer);
        searchTimer = window.setTimeout(loadSuggestions, 140);
      });
      searchInput.addEventListener("keydown", function (event) {
        if (event.key === "ArrowDown" && suggestionLinks.length) {
          event.preventDefault();
          selectSuggestion((selectedIndex + 1) % suggestionLinks.length);
        } else if (event.key === "ArrowUp" && suggestionLinks.length) {
          event.preventDefault();
          selectSuggestion(
            selectedIndex <= 0 ? suggestionLinks.length - 1 : selectedIndex - 1
          );
        } else if (event.key === "Enter" && selectedIndex >= 0) {
          event.preventDefault();
          window.location.assign(suggestionLinks[selectedIndex].href);
        } else if (event.key === "Escape") {
          closeSuggestions();
        }
      });
      clearSearch.addEventListener("click", function () {
        searchInput.value = "";
        clearSearch.hidden = true;
        closeSuggestions();
        searchInput.focus();
      });
      document.addEventListener("click", function (event) {
        if (!searchForm.contains(event.target)) { closeSuggestions(); }
      });
      clearSearch.hidden = !searchInput.value;
    }

    // Prevent repeat writes while a POST is being submitted.
    document.querySelectorAll("form[data-submit-state]").forEach(function (form) {
      form.addEventListener("submit", function () {
        var button = form.querySelector("button[type='submit']");
        if (button) {
          button.disabled = true;
          button.setAttribute("aria-busy", "true");
          button.dataset.originalLabel = button.textContent;
          button.textContent = "Working…";
        }
      });
    });

    document.querySelectorAll("form[data-confirm]").forEach(function (form) {
      form.addEventListener("submit", function (event) {
        if (!window.confirm(form.getAttribute("data-confirm"))) {
          event.preventDefault();
        }
      });
    });

    // Same-dialog local image and native-video viewer.
    var galleryDialog = document.querySelector("[data-gallery-dialog]");
    if (galleryDialog) {
      var galleryImage = galleryDialog.querySelector("[data-gallery-image]");
      var galleryVideo = galleryDialog.querySelector("[data-gallery-video]");
      var galleryVideoSource = galleryDialog.querySelector("[data-gallery-video-source]");
      var galleryVideoTrack = galleryDialog.querySelector("[data-gallery-video-track]");
      var galleryVideoPage = galleryDialog.querySelector("[data-gallery-video-page]");
      var galleryCaption = galleryDialog.querySelector("[data-gallery-caption]");
      function closeGallery() {
        galleryDialog.hidden = true;
        if (galleryVideo) { galleryVideo.pause(); }
      }
      document.querySelectorAll("[data-gallery-open]").forEach(function (button) {
        button.addEventListener("click", function () {
          var image = button.querySelector("img");
          var isVideo = button.dataset.galleryType === "video";
          galleryImage.hidden = isVideo;
          galleryVideo.hidden = !isVideo;
          galleryVideoPage.hidden = !isVideo;
          if (isVideo) {
            galleryVideo.poster = button.dataset.galleryPoster;
            galleryVideoSource.src = button.dataset.gallerySrc;
            galleryVideoTrack.src = button.dataset.galleryCaptions;
            galleryVideoPage.href = button.dataset.galleryVideoHref;
            galleryVideo.load();
          } else {
            galleryVideo.pause();
            galleryImage.src = button.dataset.gallerySrc || image.src;
            galleryImage.alt = image.alt;
          }
          galleryCaption.textContent = button.dataset.galleryCaption || image.alt;
          galleryDialog.hidden = false;
          galleryDialog.querySelector("[data-gallery-close]").focus();
        });
      });
      galleryDialog.querySelector("[data-gallery-close]").addEventListener("click", closeGallery);
      galleryDialog.addEventListener("click", function (event) {
        if (event.target === galleryDialog) { closeGallery(); }
      });
      document.addEventListener("keydown", function (event) {
        if (event.key === "Escape") { closeGallery(); }
      });
    }
  });
})();