From 67b63e984400b8c5377557bc4c25682dc44b188d Mon Sep 17 00:00:00 2001
From: pewdiepie-archdaemon <pewdiepie-archdaemon@users.noreply.github.com>
Date: Wed, 3 Jun 2026 23:04:28 +0900
Subject: [PATCH] Revert "fix(ui): allow manual prompt bar resize (#1201)"

This reverts commit 258e6fc0d435def435c61ec24ae4a6f4d168932b.
---
 static/js/ui.js                        | 22 +++-------------------
 static/style.css                       |  4 ++--
 tests/test_prompt_bar_manual_resize.py | 16 ----------------
 3 files changed, 5 insertions(+), 37 deletions(-)
 delete mode 100644 tests/test_prompt_bar_manual_resize.py

diff --git a/static/js/ui.js b/static/js/ui.js
index 90cab07..aa82cc6 100644
--- a/static/js/ui.js
+++ b/static/js/ui.js
@@ -519,20 +519,7 @@ export function getAutoScroll() {
 export function autoResize(textarea) {
   const lineHeight = parseInt(getComputedStyle(textarea).lineHeight);
   const isMobile = window.innerWidth <= 768;
-  const autoMaxHeight = isMobile ? 150 : lineHeight * 8;
-
-  // Keep a height chosen with the native desktop resize handle. Automatic
-  // changes are recorded before the observer runs, so only a real drag
-  // updates the manual floor.
-  if (!textarea._manualResizeObserver && typeof ResizeObserver !== 'undefined') {
-    textarea._manualResizeObserver = new ResizeObserver(() => {
-      const height = textarea.offsetHeight;
-      if (Math.abs(height - (textarea._autoResizeHeight || height)) > 1) {
-        textarea._manualResizeHeight = height;
-      }
-    });
-    textarea._manualResizeObserver.observe(textarea);
-  }
+  const maxHeight = isMobile ? 150 : lineHeight * 8;
 
   // Use a hidden clone to measure without disrupting the real textarea
   let clone = textarea._resizeClone;
@@ -552,12 +539,9 @@ export function autoResize(textarea) {
   clone.style.width = textarea.offsetWidth + 'px';
   clone.value = textarea.value;
   clone.style.height = '0';
-  const manualHeight = textarea._manualResizeHeight || 0;
-  const maxHeight = Math.max(autoMaxHeight, manualHeight);
-  const newHeight = Math.min(Math.max(clone.scrollHeight, lineHeight, manualHeight), maxHeight);
-  textarea._autoResizeHeight = newHeight;
+  const newHeight = Math.min(Math.max(clone.scrollHeight, lineHeight), maxHeight);
   textarea.style.height = newHeight + 'px';
-  textarea.style.overflow = newHeight >= autoMaxHeight ? 'auto' : 'hidden';
+  textarea.style.overflow = newHeight >= maxHeight ? 'auto' : 'hidden';
 }
 
 /**
diff --git a/static/style.css b/static/style.css
index 30725ed..f6681b9 100644
--- a/static/style.css
+++ b/static/style.css
@@ -2204,12 +2204,12 @@ body.bg-pattern-sparkles {
       background: transparent;
       border: none;
       outline: none;
-      resize: vertical;
+      resize: none;
       font-size: 14px;
       line-height: 1.5;
       color: var(--fg);
       min-height: 24px;
-      max-height: min(60vh, 600px);
+      max-height: 200px;
       padding: 0;
       font-family: inherit;
       transition: height 0.12s ease-out;
diff --git a/tests/test_prompt_bar_manual_resize.py b/tests/test_prompt_bar_manual_resize.py
deleted file mode 100644
index 5792c13..0000000
--- a/tests/test_prompt_bar_manual_resize.py
+++ /dev/null
@@ -1,16 +0,0 @@
-from pathlib import Path
-
-
-CSS = Path("static/style.css").read_text(encoding="utf-8")
-UI_JS = Path("static/js/ui.js").read_text(encoding="utf-8")
-
-
-def test_prompt_bar_exposes_desktop_resize_handle():
-    assert "resize: vertical;" in CSS
-    assert "max-height: min(60vh, 600px);" in CSS
-
-
-def test_auto_resize_preserves_a_manually_chosen_height():
-    assert "textarea._manualResizeHeight = height;" in UI_JS
-    assert "const manualHeight = textarea._manualResizeHeight || 0;" in UI_JS
-    assert "const maxHeight = Math.max(autoMaxHeight, manualHeight);" in UI_JS