feat: AI生成时智能滚动 - 用户可自由滚动查看，只在底部时自动滚动

2026-04-26 22:48:57 +08:00
parent fb09560259
commit 9098e6b4f7
2 changed files with 37 additions and 5 deletions
--- a/www/app.js
+++ b/www/app.js
@@ -19,6 +19,7 @@ let isLoading = false;
 // 功能开关
 let enableThinking = false;  // 深度思考
 let enableSearch = false;    // 联网搜索
+let autoScrollEnabled = true;  // 自动滚动（用户滚动后可关闭）

 // DOM 元素（初始为 null，在 openConversation 时重新获取）
 let appContainer = null;
@@ -575,6 +576,12 @@ function openConversation(id) {
  thinkingBtn = document.getElementById('thinkingBtn');
  searchBtn = document.getElementById('searchBtn');
  
+  // 重置自动滚动状态
+  autoScrollEnabled = true;
+  
+  // 设置滚动监听
+  setupScrollListener();
+  
  // 绑定按钮事件
  const backBtn = document.getElementById('backBtn');
  if (backBtn) backBtn.addEventListener('click', showConversationList);
@@ -739,6 +746,9 @@ async function sendMessage() {
  currentConversation.updatedAt = Date.now();
  saveConversations();
  
+  // 发送新消息时启用自动滚动
+  autoScrollEnabled = true;
+  
  renderMessages();
  userInput.value = '';
  autoResize(userInput);
@@ -1298,10 +1308,32 @@ function renderMarkdown(text) {
  return marked.parse(text);
 }

-// 滚动到底部
+// 滚动到底部（智能滚动：只在用户已在底部时自动滚动）
 function scrollToBottom() {
  if (messagesContainer) {
-    messagesContainer.scrollTop = messagesContainer.scrollHeight;
+    // 判断用户是否在底部附近（距离底部100px以内）
+    const isNearBottom = messagesContainer.scrollHeight - messagesContainer.scrollTop - messagesContainer.clientHeight < 100;
+    
+    if (isNearBottom || autoScrollEnabled) {
+      messagesContainer.scrollTop = messagesContainer.scrollHeight;
+    }
+  }
+}
+
+// 监听用户滚动行为
+function setupScrollListener() {
+  if (messagesContainer) {
+    messagesContainer.addEventListener('scroll', () => {
+      // 判断用户是否在底部附近
+      const isNearBottom = messagesContainer.scrollHeight - messagesContainer.scrollTop - messagesContainer.clientHeight < 100;
+      
+      if (isNearBottom) {
+        autoScrollEnabled = true;
+      } else {
+        // 用户往上滚动，停止自动滚动
+        autoScrollEnabled = false;
+      }
+    });
  }
 }

--- a/www/index.html
+++ b/www/index.html
@@ -8,12 +8,12 @@
  <meta http-equiv="Pragma" content="no-cache">
  <meta http-equiv="Expires" content="0">
  <title>AI助手</title>
-  <link rel="stylesheet" href="style.css?v=2.7.7">
+  <link rel="stylesheet" href="style.css?v=2.8.0">
  <link rel="manifest" href="manifest.json">
 </head>
 <body>
  <div id="app"></div>
-  <script src="marked.min.js?v=2.7.7"></script>
-  <script src="app.js?v=2.7.7"></script>
+  <script src="marked.min.js?v=2.8.0"></script>
+  <script src="app.js?v=2.8.0"></script>
 </body>
 </html>