refactor(glossaire): componentize glossary entry page

src/components/GlossaryEntryStickySync.astro

@@ -0,0 +1,172 @@
+<script is:inline>
+  (() => {
+    const boot = () => {
+      const body = document.body;
+      const root = document.documentElement;
+      const hero = document.querySelector("[data-ge-hero]");
+      const follow = document.getElementById("reading-follow");
+      const mqMobile = window.matchMedia("(max-width: 860px)");
+
+      if (!body || !root || !hero || !follow) return;
+
+      const BODY_CLASS = "is-glossary-entry-page";
+      const FOLLOW_ON_CLASS = "glossary-entry-follow-on";
+
+      let lastHeight = -1;
+      let lastFollowOn = null;
+      let raf = 0;
+
+      body.classList.add(BODY_CLASS);
+
+      const heroHeight = () =>
+        Math.max(0, Math.round(hero.getBoundingClientRect().height || 0));
+
+      const computeFollowOn = () =>
+        !mqMobile.matches &&
+        follow.classList.contains("is-on") &&
+        follow.style.display !== "none" &&
+        follow.getAttribute("aria-hidden") !== "true";
+
+      const stripLocalSticky = () => {
+        document
+          .querySelectorAll(
+            ".glossary-entry-body h2, .glossary-entry-body h3, .glossary-relations h2, .glossary-relations h3"
+          )
+          .forEach((el) => {
+            el.classList.remove("is-sticky");
+            el.removeAttribute("data-sticky-active");
+          });
+      };
+
+      const applyLocalStickyHeight = () => {
+        const h = mqMobile.matches ? 0 : heroHeight();
+        if (h === lastHeight) return;
+        lastHeight = h;
+
+        if (typeof window.__archiSetLocalStickyHeight === "function") {
+          window.__archiSetLocalStickyHeight(h);
+        } else {
+          root.style.setProperty("--glossary-local-sticky-h", `${h}px`);
+        }
+      };
+
+      const syncFollowState = () => {
+        const on = computeFollowOn();
+        if (on === lastFollowOn) return;
+        lastFollowOn = on;
+        body.classList.toggle(FOLLOW_ON_CLASS, on);
+      };
+
+      const syncAll = () => {
+        stripLocalSticky();
+        syncFollowState();
+        applyLocalStickyHeight();
+      };
+
+      const schedule = () => {
+        if (raf) return;
+        raf = requestAnimationFrame(() => {
+          raf = 0;
+          syncAll();
+        });
+      };
+
+      const followObserver = new MutationObserver(schedule);
+      followObserver.observe(follow, {
+        attributes: true,
+        attributeFilter: ["class", "style", "aria-hidden"],
+        subtree: false,
+      });
+
+      const heroResizeObserver =
+        typeof ResizeObserver !== "undefined"
+          ? new ResizeObserver(schedule)
+          : null;
+
+      heroResizeObserver?.observe(hero);
+
+      window.addEventListener("resize", schedule);
+      window.addEventListener("pageshow", schedule);
+
+      if (document.fonts?.ready) {
+        document.fonts.ready.then(schedule).catch(() => {});
+      }
+
+      if (mqMobile.addEventListener) {
+        mqMobile.addEventListener("change", schedule);
+      } else if (mqMobile.addListener) {
+        mqMobile.addListener(schedule);
+      }
+
+      schedule();
+    };
+
+    if (document.readyState === "loading") {
+      document.addEventListener("DOMContentLoaded", boot, { once: true });
+    } else {
+      boot();
+    }
+  })();
+</script>
+
+<style>
+  :global(body.is-glossary-entry-page #reading-follow){
+    z-index: 10;
+  }
+
+  :global(body.is-glossary-entry-page.glossary-entry-follow-on .glossary-entry-head){
+    margin-bottom: 0;
+    border-bottom-left-radius: 0;
+    border-bottom-right-radius: 0;
+  }
+
+  :global(body.is-glossary-entry-page.glossary-entry-follow-on .glossary-entry-summary){
+    gap: 10px;
+    padding-top: 12px;
+    padding-bottom: 10px;
+  }
+
+  :global(body.is-glossary-entry-page.glossary-entry-follow-on .glossary-entry-signals){
+    gap: 6px;
+  }
+
+  :global(body.is-glossary-entry-page.glossary-entry-follow-on .glossary-entry-meta){
+    padding: 8px 10px;
+  }
+
+  :global(body.is-glossary-entry-page.glossary-entry-follow-on #reading-follow){
+    transform: translateY(-1px);
+  }
+
+  :global(body.is-glossary-entry-page.glossary-entry-follow-on #reading-follow .reading-follow__inner){
+    margin-top: -1px;
+    border-top-left-radius: 0;
+    border-top-right-radius: 0;
+  }
+
+  :global(body.is-glossary-entry-page .glossary-entry-body h2.is-sticky),
+  :global(body.is-glossary-entry-page .glossary-entry-body h2[data-sticky-active="true"]),
+  :global(body.is-glossary-entry-page .glossary-entry-body h3.is-sticky),
+  :global(body.is-glossary-entry-page .glossary-entry-body h3[data-sticky-active="true"]),
+  :global(body.is-glossary-entry-page .glossary-relations h2.is-sticky),
+  :global(body.is-glossary-entry-page .glossary-relations h2[data-sticky-active="true"]),
+  :global(body.is-glossary-entry-page .glossary-relations h3.is-sticky),
+  :global(body.is-glossary-entry-page .glossary-relations h3[data-sticky-active="true"]){
+    position: static !important;
+    top: auto !important;
+    z-index: auto !important;
+    padding: 0 !important;
+    border: 0 !important;
+    background: transparent !important;
+    box-shadow: none !important;
+    backdrop-filter: none !important;
+    -webkit-backdrop-filter: none !important;
+  }
+
+  @media (max-width: 860px){
+    :global(body.is-glossary-entry-page.glossary-entry-follow-on .glossary-entry-head){
+      margin-bottom: 20px;
+      border-radius: 22px;
+    }
+  }
+</style>