Move to single global document observer where possible and relevant

2026-11-05 15:52:47 +01:00 · 2026-10-12 04:44:40 -04:00
parent 5d34fd09d9
commit 34bb37ff27
13 changed files with 874 additions and 329 deletions
@@ -701,30 +701,37 @@
        return isAppVersionAtLeast12();
    }

-    function ensureToolbarObserver() {
-        if (toolbarObserver || typeof MutationObserver === 'undefined' || !document.body) return;
-        let scheduled = false;
-        toolbarObserver = new MutationObserver(() => {
-            if (scheduled) return;
-            scheduled = true;
-            requestAnimationFrame(() => {
-                scheduled = false;
-                ensureHamburgerButton();
-            });
-        });
-        toolbarObserver.observe(document.body, { childList: true, subtree: true });
-    }
-
-    function start() {
-        ensureStyles();
+    function armToolbarPoll() {
        ensureHamburgerButton();
-        ensureToolbarObserver();
-        // Retry briefly for late toolbar mount
        let tries = 0;
        const poll = setInterval(() => {
            tries += 1;
            if (ensureHamburgerButton() || tries >= 40) clearInterval(poll);
        }, 250);
+    }
+
+    function start() {
+        ensureStyles();
+        armToolbarPoll();
+
+        const utils = window.KefinTweaksUtils;
+        if (utils?.onViewPage) {
+            // Toolbar remounts across navigations — short poll per view, no permanent body MO
+            utils.onViewPage(() => {
+                armToolbarPoll();
+            });
+        } else if (utils?.onBodyMutation) {
+            let scheduled = false;
+            toolbarObserver = utils.onBodyMutation('hamburger-toolbar', () => {
+                if (scheduled) return;
+                scheduled = true;
+                requestAnimationFrame(() => {
+                    scheduled = false;
+                    ensureHamburgerButton();
+                });
+            });
+        }
+
        LOG('Desktop hamburger menu initialized');
    }