From 50853eea2fe599d1cdf2b56c181d02843ff09c7f Mon Sep 17 00:00:00 2001
From: yumoqing <yumoqing@gmail.com>
Date: Sat, 28 Feb 2026 13:31:52 +0800
Subject: [PATCH] bugfix

---
 bricks/css/bricks.css | 18 ++++++++++++++++++
 bricks/input.js       | 29 +++++++++++++++++++++++++++--
 2 files changed, 45 insertions(+), 2 deletions(-)

diff --git a/bricks/css/bricks.css b/bricks/css/bricks.css
index 1813dc4..70e2c61 100755
--- a/bricks/css/bricks.css
+++ b/bricks/css/bricks.css
@@ -611,3 +611,21 @@ hr {
 	height: 50px;
 }
 
+.auto-textarea {
+	width: 100%;
+	min-height: 40px;      /* 初始高度 */
+	max-height: 150px;     /* 最大高度：超过此高度将滚动 */
+	line-height: 1.5;
+	padding: 10px;
+	box-sizing: border-box;
+	resize: none;          /* 禁用右下角手动拉伸 */
+	overflow-y: hidden;    /* 初始隐藏滚动条 */
+	border: 1px solid #ccc;
+	border-radius: 4px;
+	outline: none;
+	transition: border-color 0.2s;
+}
+
+.inputbox:focus {
+	border-color: #007bff;
+}
diff --git a/bricks/input.js b/bricks/input.js
index 49cb004..e305b1f 100644
--- a/bricks/input.js
+++ b/bricks/input.js
@@ -923,13 +923,38 @@ bricks.UiText =class extends bricks.UiType {
 	constructor(opts){
 		opts.dynsize = opts.dynsize || true;
 		opts.cfontsize = opts.cfontsize || 1;
-		opts.height = '200px';
+		if (opts.css){
+			opts.css += 'auto-textarea';
+		} else {
+			opts.css = 'auto-textarea';
+		}
 		super(opts);
 		this.uitype='text';
 		this.build();
 		this.charsize_sizing();
 		this.set_style('overflow', 'auto');
-		this.bind('keydown', this.key_handle.bind(this))
+		this.bind('oninput', this.handleInput.bind(this));
+		this.bind('keydown', this.key_handle.bind(this));
+	}
+	handleInput() {
+		// 1. 重置高度为 auto，以便能够正确计算缩减后的 scrollHeight
+		var el = this.dom_element;
+		el.style.height = 'auto';
+
+		// 2. 获取当前的滚动高度
+		const scrollHeight = el.scrollHeight;
+		// 3. 获取 CSS 中定义的 max-height (150px)
+		const maxHeight = parseInt(window.getComputedStyle(el).maxHeight);
+
+		if (scrollHeight >= maxHeight) {
+			// 4. 如果内容高度超过最大高度，固定为最大高度并显示滚动条
+			el.style.height = maxHeight + 'px';
+			el.style.overflowY = 'auto';
+		} else {
+			// 5. 否则持续自适应高度，并隐藏滚动条
+			el.style.height = scrollHeight + 'px';
+			el.style.overflowY = 'hidden';
+		}
 	}
 	create(){
 		this.dom_element = this._create('textarea');