From d75241467cd2ebe71cceed5219f29db0bf1c2287 Mon Sep 17 00:00:00 2001
From: MichaelWest22 <michael@latent.nz>
Date: Tue, 14 Jul 2026 02:43:47 +1200
Subject: [PATCH 1/3] improve hx-live perf by skipping no change updates

---
 src/ext/hx-live.js | 23 ++++++++++++++++++++---
 1 file changed, 20 insertions(+), 3 deletions(-)

diff --git a/src/ext/hx-live.js b/src/ext/hx-live.js
index bf3671b7c..04d3a895e 100644
--- a/src/ext/hx-live.js
+++ b/src/ext/hx-live.js
@@ -18,10 +18,16 @@
 
     const OBSERVE_OPTIONS = { childList: true, subtree: true, attributes: true, characterData: true };
 
+    let inputDebounceId = null;
+    const INPUT_DEBOUNCE_MS = htmx.config.live?.inputDebounceMs ?? 100;
+
     function ensureActive() {
         if (observer) return;
         recomputeBound = () => schedule();
-        document.addEventListener('input', recomputeBound, true);
+        document.addEventListener('input', () => {
+            clearTimeout(inputDebounceId);
+            inputDebounceId = setTimeout(schedule, INPUT_DEBOUNCE_MS);
+        }, true);
         document.addEventListener('change', recomputeBound, true);
         observer = new MutationObserver(recomputeBound);
         observer.observe(document.documentElement, OBSERVE_OPTIONS);
@@ -29,6 +35,8 @@
 
     function deactivate() {
         if (!observer) return;
+        clearTimeout(inputDebounceId);
+        inputDebounceId = null;
         document.removeEventListener('input', recomputeBound, true);
         document.removeEventListener('change', recomputeBound, true);
         observer.disconnect();
@@ -112,6 +120,7 @@
 
         let value = rest[0];
         for (let e of elts) {
+            if (applyAttr([e], name) === value) continue;
             if (isClass) {
                 e.classList.toggle(name.slice(1), !!value);
                 if (e.classList.length === 0) e.removeAttribute('class');
@@ -595,8 +604,16 @@
     }
 
     function writeAttrBinding(elt, attrName, value) {
-        if (attrName === 'text') { elt.textContent = value == null ? '' : String(value); return; }
-        if (attrName === 'html') { elt.innerHTML = value == null ? '' : String(value); return; }
+        if (attrName === 'text') {
+            let s = value == null ? '' : String(value);
+            if (elt.textContent !== s) elt.textContent = s;
+            return;
+        }
+        if (attrName === 'html') {
+            let s = value == null ? '' : String(value);
+            if (elt.innerHTML !== s) elt.innerHTML = s;
+            return;
+        }
         if (attrName === 'style') { applyStyleBinding(elt, value); return; }
         // Everything else (class, .class, aria-*, boolean, property-sync, regular) → applyAttr.
         applyAttr([elt], attrName, value);

From 648db6e28d8b9a3961de32efdc1aaeb0d6385405 Mon Sep 17 00:00:00 2001
From: MichaelWest22 <michael@latent.nz>
Date: Tue, 14 Jul 2026 03:27:31 +1200
Subject: [PATCH 2/3] fix aria and checkbox handling

---
 src/ext/hx-live.js | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/src/ext/hx-live.js b/src/ext/hx-live.js
index 04d3a895e..2d748e684 100644
--- a/src/ext/hx-live.js
+++ b/src/ext/hx-live.js
@@ -120,7 +120,6 @@
 
         let value = rest[0];
         for (let e of elts) {
-            if (applyAttr([e], name) === value) continue;
             if (isClass) {
                 e.classList.toggle(name.slice(1), !!value);
                 if (e.classList.length === 0) e.removeAttribute('class');
@@ -615,7 +614,9 @@
             return;
         }
         if (attrName === 'style') { applyStyleBinding(elt, value); return; }
-        // Everything else (class, .class, aria-*, boolean, property-sync, regular) → applyAttr.
+        // Always write aria-* and property-backed attrs (getter type differs from setter).
+        // For everything else skip if unchanged.
+        if (!attrName.startsWith('aria-') && !PROPERTY_ATTRS.has(attrName) && applyAttr([elt], attrName) === value) return;
         applyAttr([elt], attrName, value);
     }
 

From 79269d7f1edd2980386c9c824768794fd3574a2a Mon Sep 17 00:00:00 2001
From: MichaelWest22 <michael@latent.nz>
Date: Tue, 14 Jul 2026 10:37:14 +1200
Subject: [PATCH 3/3] fix input event listener disconnect

---
 src/ext/hx-live.js | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/src/ext/hx-live.js b/src/ext/hx-live.js
index 2d748e684..045ccc1d8 100644
--- a/src/ext/hx-live.js
+++ b/src/ext/hx-live.js
@@ -11,6 +11,7 @@
     let dbSym = Symbol();
     let observer = null;
     let recomputeBound = null;
+    let inputBound = null;
     let swaps = 0;
     let i = 0;
     let start = 0;
@@ -24,10 +25,8 @@
     function ensureActive() {
         if (observer) return;
         recomputeBound = () => schedule();
-        document.addEventListener('input', () => {
-            clearTimeout(inputDebounceId);
-            inputDebounceId = setTimeout(schedule, INPUT_DEBOUNCE_MS);
-        }, true);
+        inputBound = () => { clearTimeout(inputDebounceId); inputDebounceId = setTimeout(schedule, INPUT_DEBOUNCE_MS); };
+        document.addEventListener('input', inputBound, true);
         document.addEventListener('change', recomputeBound, true);
         observer = new MutationObserver(recomputeBound);
         observer.observe(document.documentElement, OBSERVE_OPTIONS);
@@ -37,7 +36,8 @@
         if (!observer) return;
         clearTimeout(inputDebounceId);
         inputDebounceId = null;
-        document.removeEventListener('input', recomputeBound, true);
+        document.removeEventListener('input', inputBound, true);
+        inputBound = null;
         document.removeEventListener('change', recomputeBound, true);
         observer.disconnect();
         observer = null;