feat: 添加置顶置底导航按钮

www/app.js

@@ -13,6 +13,10 @@ let conversations = [];  // 对话列表
 let currentConversation = null;  // 当前对话
 let isLoading = false;
 
+// 功能开关
+let enableThinking = false;  // 深度思考
+let enableSearch = false;    // 联网搜索
+
 // DOM 元素（初始为 null，在 openConversation 时重新获取）
 let appContainer = null;
 let messagesContainer = null;
@@ -20,6 +24,8 @@ let messagesDiv = null;
 let userInput = null;
 let sendBtn = null;
 let welcome = null;
+let thinkingBtn = null;
+let searchBtn = null;
 
 // 初始化
 document.addEventListener('DOMContentLoaded', () => {
@@ -171,6 +177,28 @@ function openConversation(id) {
         <div class="messages" id="messages"></div>
       </div>
 
+      <!-- 功能开关栏 -->
+      <div class="feature-bar">
+        <div class="feature-left">
+          <button class="feature-btn thinking-btn ${enableThinking ? 'active' : ''}" id="thinkingBtn">
+            <svg viewBox="0 0 24 24" width="16" height="16"><path fill="currentColor" d="M12 2C6.48 2 2 6.48 2 12s4.48 10 10 10 10-4.48 10-10S17.52 2 12 2zm-2 15l-5-5 1.41-1.41L10 14.17l7.59-7.59L19 8l-9 9z"/></svg>
+            <span>深度思考</span>
+          </button>
+          <button class="feature-btn search-btn ${enableSearch ? 'active' : ''}" id="searchBtn">
+            <svg viewBox="0 0 24 24" width="16" height="16"><path fill="currentColor" d="M15.5 14h-.79l-.28-.27C15.41 12.59 16 11.11 16 9.5 16 5.91 13.09 3 9.5 3S3 5.91 3 9.5 5.91 16 9.5 16c1.61 0 3.09-.59 4.23-1.57l.27.28v.79l5 4.99L20.49 19l-4.99-5zm-6 0C7.01 14 5 11.99 5 9.5S7.01 7 9.5 7 14 9.01 14 9.5 11.99 14 9.5 14z"/></svg>
+            <span>联网搜索</span>
+          </button>
+        </div>
+        <div class="feature-right">
+          <button class="feature-btn nav-btn" id="scrollTopBtn" title="回到顶部">
+            <svg viewBox="0 0 24 24" width="16" height="16"><path fill="currentColor" d="M7.41 15.41L12 10.83l4.59 4.58L18 14l-6-6-6 6z"/></svg>
+          </button>
+          <button class="feature-btn nav-btn" id="scrollBottomBtn" title="回到底部">
+            <svg viewBox="0 0 24 24" width="16" height="16"><path fill="currentColor" d="M7.41 8.59L12 13.17l4.59-4.58L18 10l-6 6-6-6z"/></svg>
+          </button>
+        </div>
+      </div>
+
       <div class="input-area">
         <button class="attach-btn" id="attachBtn" title="上传文件">
           <svg viewBox="0 0 24 24" width="24" height="24"><path fill="currentColor" d="M19 13h-6v6h-2v-6H5v-2h6V5h2v6h6v2z"/></svg>
@@ -211,6 +239,8 @@ function openConversation(id) {
   userInput = document.getElementById('userInput');
   sendBtn = document.getElementById('sendBtn');
   welcome = document.getElementById('welcome');
+  thinkingBtn = document.getElementById('thinkingBtn');
+  searchBtn = document.getElementById('searchBtn');
   
   // 绑定按钮事件
   const backBtn = document.getElementById('backBtn');
@@ -219,6 +249,57 @@ function openConversation(id) {
   const clearBtn = document.getElementById('clearBtn');
   if (clearBtn) clearBtn.addEventListener('click', clearCurrentChat);
   
+  // 绑定功能开关按钮事件
+  if (thinkingBtn) {
+    thinkingBtn.addEventListener('click', () => {
+      enableThinking = !enableThinking;
+      thinkingBtn.classList.toggle('active', enableThinking);
+      // 如果开启深度思考，关闭联网搜索（智谱思考模型不支持联网）
+      if (enableThinking && enableSearch) {
+        enableSearch = false;
+        searchBtn.classList.remove('active');
+      }
+    });
+  }
+  
+  if (searchBtn) {
+    searchBtn.addEventListener('click', () => {
+      enableSearch = !enableSearch;
+      searchBtn.classList.toggle('active', enableSearch);
+      // 如果开启联网搜索，关闭深度思考
+      if (enableSearch && enableThinking) {
+        enableThinking = false;
+        thinkingBtn.classList.remove('active');
+      }
+    });
+  }
+  
+  // 绑定置顶置底按钮事件
+  const scrollTopBtn = document.getElementById('scrollTopBtn');
+  const scrollBottomBtn = document.getElementById('scrollBottomBtn');
+  
+  if (scrollTopBtn) {
+    scrollTopBtn.addEventListener('click', () => {
+      if (messagesContainer) {
+        messagesContainer.scrollTo({
+          top: 0,
+          behavior: 'smooth'
+        });
+      }
+    });
+  }
+  
+  if (scrollBottomBtn) {
+    scrollBottomBtn.addEventListener('click', () => {
+      if (messagesContainer) {
+        messagesContainer.scrollTo({
+          top: messagesContainer.scrollHeight,
+          behavior: 'smooth'
+        });
+      }
+    });
+  }
+  
   // 绑定输入事件
   userInput.addEventListener('keydown', handleKeyDown);
   userInput.addEventListener('input', (e) => autoResize(e.target));
@@ -349,29 +430,50 @@ async function streamGenerate(userMsgIndex) {
   sendBtn.disabled = true;
 
   const aiMessageIndex = currentConversation.messages.length;
-  currentConversation.messages.push({ role: 'assistant', content: '' });
+  
+  // 只有开启深度思考时才添加 thinking 字段
+  currentConversation.messages.push({ 
+    role: 'assistant', 
+    content: '',
+    ...(enableThinking ? { thinking: '' } : {})
+  });
   renderMessages();
   
   const lastMessageEl = messagesDiv.lastElementChild;
   const contentEl = lastMessageEl.querySelector('.message-content');
+  const thinkingEl = lastMessageEl.querySelector('.thinking-content');
+  
+  // 深度思考模式：思考块默认展开
+  if (enableThinking && thinkingEl) {
+    const thinkingBlock = lastMessageEl.querySelector('.thinking-block');
+    if (thinkingBlock) thinkingBlock.classList.add('expanded');
+    thinkingEl.innerHTML = '<span class="streaming-cursor">思考中...</span>';
+  }
+  
   contentEl.innerHTML = '<span class="streaming-cursor">▌</span>';
 
   try {
+    // 构建请求体 - 统一使用 glm-4.5-air，通过 thinking 参数控制
+    const requestBody = {
+      model: CONFIG.model,
+      messages: currentConversation.messages.slice(0, aiMessageIndex).map(m => ({
+        role: m.role,
+        content: m.content
+      })),
+      max_tokens: CONFIG.maxTokens,
+      stream: true,
+      thinking: {
+        type: enableThinking ? 'enabled' : 'disabled'
+      }
+    };
+    
     const response = await fetch(CONFIG.apiUrl, {
       method: 'POST',
       headers: {
         'Content-Type': 'application/json',
         'Authorization': `Bearer ${CONFIG.apiKey}`
       },
-      body: JSON.stringify({
-        model: CONFIG.model,
-        messages: currentConversation.messages.slice(0, aiMessageIndex).map(m => ({
-          role: m.role,
-          content: m.content
-        })),
-        max_tokens: CONFIG.maxTokens,
-        stream: true
-      })
+      body: JSON.stringify(requestBody)
     });
 
     if (!response.ok) {
@@ -381,6 +483,7 @@ async function streamGenerate(userMsgIndex) {
     const reader = response.body.getReader();
     const decoder = new TextDecoder();
     let buffer = '';
+    let thinkingOutputStarted = false;  // 正式内容是否开始输出
 
     while (true) {
       const { done, value } = await reader.read();
@@ -397,16 +500,44 @@ async function streamGenerate(userMsgIndex) {
           
           try {
             const data = JSON.parse(jsonStr);
-            if (data.choices && data.choices[0]?.delta?.content) {
-              currentConversation.messages[aiMessageIndex].content += data.choices[0].delta.content;
-              contentEl.innerHTML = renderMarkdown(currentConversation.messages[aiMessageIndex].content) + '<span class="streaming-cursor">▌</span>';
-              scrollToBottom();
+            const delta = data.choices?.[0]?.delta;
+            
+            if (delta) {
+              // 只有开启深度思考时才处理思考内容
+              if (enableThinking && (delta.reasoning_content || delta.thinking)) {
+                const thinkingChunk = delta.reasoning_content || delta.thinking;
+                currentConversation.messages[aiMessageIndex].thinking += thinkingChunk;
+                if (thinkingEl) {
+                  thinkingEl.innerHTML = renderMarkdown(currentConversation.messages[aiMessageIndex].thinking) + '<span class="streaming-cursor">▌</span>';
+                }
+                scrollToBottom();
+              }
+              
+              // 处理正式回复内容
+              if (delta.content) {
+                // 如果开启深度思考且开始输出正式内容，折叠思考块
+                if (enableThinking && !thinkingOutputStarted && currentConversation.messages[aiMessageIndex].thinking) {
+                  thinkingOutputStarted = true;
+                  // 折叠思考内容
+                  const thinkingBlock = lastMessageEl.querySelector('.thinking-block');
+                  if (thinkingBlock) thinkingBlock.classList.remove('expanded');
+                  if (thinkingEl) thinkingEl.innerHTML = renderMarkdown(currentConversation.messages[aiMessageIndex].thinking);
+                }
+                
+                currentConversation.messages[aiMessageIndex].content += delta.content;
+                contentEl.innerHTML = renderMarkdown(currentConversation.messages[aiMessageIndex].content) + '<span class="streaming-cursor">▌</span>';
+                scrollToBottom();
+              }
             }
           } catch (e) {}
         }
       }
     }
 
+    // 最终渲染
+    if (thinkingEl && enableThinking && currentConversation.messages[aiMessageIndex].thinking) {
+      thinkingEl.innerHTML = renderMarkdown(currentConversation.messages[aiMessageIndex].thinking);
+    }
     contentEl.innerHTML = renderMarkdown(currentConversation.messages[aiMessageIndex].content);
 
   } catch (error) {
@@ -419,6 +550,58 @@ async function streamGenerate(userMsgIndex) {
     currentConversation.updatedAt = Date.now();
     saveConversations();
     renderMessages();
+    
+    // 自动总结标题：第一次对话和每隔5次对话
+    const totalMessages = currentConversation.messages.length;
+    if (totalMessages === 1 || totalMessages % 5 === 0) {
+      await generateConversationTitle();
+    }
+  }
+}
+
+// 生成对话标题
+async function generateConversationTitle() {
+  if (!currentConversation) return;
+  
+  // 构建对话摘要
+  const conversationText = currentConversation.messages.map(m => 
+    `${m.role === 'user' ? '用户' : 'AI'}: ${m.content.slice(0, 200)}`
+  ).join('\n');
+  
+  const titlePrompt = `请用不超过10个字总结以下对话的主题，只输出标题，不要其他内容：
+${conversationText}`;
+
+  try {
+    const response = await fetch(CONFIG.apiUrl, {
+      method: 'POST',
+      headers: {
+        'Content-Type': 'application/json',
+        'Authorization': `Bearer ${CONFIG.apiKey}`
+      },
+      body: JSON.stringify({
+        model: CONFIG.model,
+        messages: [{ role: 'user', content: titlePrompt }],
+        max_tokens: 50
+      })
+    });
+
+    if (response.ok) {
+      const data = await response.json();
+      const newTitle = data.choices?.[0]?.message?.content?.trim();
+      if (newTitle && newTitle.length > 0 && newTitle.length <= 15) {
+        currentConversation.title = newTitle;
+        currentConversation.updatedAt = Date.now();
+        saveConversations();
+        
+        // 更新页面标题显示
+        const titleEl = document.querySelector('.header h1');
+        if (titleEl) {
+          titleEl.textContent = newTitle;
+        }
+      }
+    }
+  } catch (error) {
+    console.error('生成标题失败:', error);
   }
 }
 
@@ -541,6 +724,20 @@ function renderMessages() {
       contentHtml = renderMarkdown(msg.content);
     }
     
+    // 思考内容块（仅AI消息）
+    let thinkingHtml = '';
+    if (!isUser && msg.thinking) {
+      thinkingHtml = `
+        <div class="thinking-block" onclick="toggleThinking(this)">
+          <div class="thinking-header">
+            <svg viewBox="0 0 24 24" width="16" height="16"><path fill="currentColor" d="M12 2C6.48 2 2 6.48 2 12s4.48 10 10 10 10-4.48 10-10S17.52 2 12 2zm-2 15l-5-5 1.41-1.41L10 14.17l7.59-7.59L19 8l-9 9z"/></svg>
+            <span>思考过程</span>
+            <svg class="thinking-arrow" viewBox="0 0 24 24" width="14" height="14"><path fill="currentColor" d="M7 10l5 5 5-5z"/></svg>
+          </div>
+          <div class="thinking-content">${renderMarkdown(msg.thinking)}</div>
+        </div>`;
+    }
+    
     const copyIcon = `<svg viewBox="0 0 24 24" width="16" height="16"><path fill="currentColor" d="M16 1H4c-1.1 0-2 .9-2 2v14h2V3h12V1zm3 4H8c-1.1 0-2 .9-2 2v14c0 1.1.9 2 2 2h11c1.1 0 2-.9 2-2V7c0-1.1-.9-2-2-2zm0 16H8V7h11v14z"/></svg>`;
     
     const actions = isUser 
@@ -564,6 +761,7 @@ function renderMessages() {
       <div class="message ${msg.role}" data-index="${index}">
         <div class="message-avatar">${avatar}</div>
         <div class="message-body">
+          ${thinkingHtml}
           <div class="message-content">${contentHtml}</div>
           ${actions}
         </div>
@@ -585,6 +783,11 @@ function renderMessages() {
   scrollToBottom();
 }
 
+// 折叠/展开思考内容
+function toggleThinking(block) {
+  block.classList.toggle('expanded');
+}
+
 // ==================== 工具函数 ====================
 
 // 渲染 Markdown

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=2.1.2">
+  <link rel="stylesheet" href="style.css?v=2.3.1">
   <link rel="manifest" href="manifest.json">
 </head>
 <body>
   <div id="app"></div>
-  <script src="marked.min.js?v=2.1.2"></script>
-  <script src="app.js?v=2.1.2"></script>
+  <script src="marked.min.js?v=2.3.1"></script>
+  <script src="app.js?v=2.3.1"></script>
 </body>
 </html>

www/style.css

@@ -582,6 +582,126 @@ body {
   font-weight: 600;
 }
 
+/* 功能开关栏 */
+.feature-bar {
+  display: flex;
+  justify-content: space-between;
+  align-items: center;
+  gap: 8px;
+  padding: 8px 16px;
+  background: rgba(255,255,255,0.95);
+  border-top: 1px solid var(--border-color);
+}
+
+.feature-left {
+  display: flex;
+  gap: 8px;
+}
+
+.feature-right {
+  display: flex;
+  gap: 4px;
+}
+
+.feature-btn {
+  display: flex;
+  align-items: center;
+  gap: 4px;
+  padding: 6px 12px;
+  background: white;
+  border: 1px solid var(--border-color);
+  border-radius: 20px;
+  font-size: 13px;
+  color: var(--text-light);
+  cursor: pointer;
+  transition: all 0.2s;
+}
+
+.feature-btn:hover {
+  border-color: var(--primary);
+  color: var(--primary);
+}
+
+.feature-btn.active {
+  background: linear-gradient(135deg, var(--primary) 0%, #764ba2 100%);
+  border-color: transparent;
+  color: white;
+}
+
+.feature-btn svg {
+  flex-shrink: 0;
+}
+
+/* 导航按钮样式 */
+.nav-btn {
+  padding: 6px 8px;
+  min-width: 32px;
+}
+
+.nav-btn:hover {
+  background: var(--primary);
+  border-color: var(--primary);
+  color: white;
+}
+
+/* 思考内容块 */
+.thinking-block {
+  margin-bottom: 12px;
+  background: rgba(102, 126, 234, 0.08);
+  border: 1px solid rgba(102, 126, 234, 0.2);
+  border-radius: 10px;
+  overflow: hidden;
+  cursor: pointer;
+  transition: all 0.2s;
+}
+
+.thinking-block:hover {
+  border-color: rgba(102, 126, 234, 0.4);
+}
+
+.thinking-header {
+  display: flex;
+  align-items: center;
+  gap: 6px;
+  padding: 8px 12px;
+  background: rgba(102, 126, 234, 0.12);
+  font-size: 13px;
+  color: var(--primary);
+  font-weight: 500;
+}
+
+.thinking-header svg:first-child {
+  color: var(--primary);
+}
+
+.thinking-arrow {
+  margin-left: auto;
+  transition: transform 0.2s;
+}
+
+.thinking-block.expanded .thinking-arrow {
+  transform: rotate(180deg);
+}
+
+.thinking-content {
+  padding: 0 12px;
+  max-height: 0;
+  overflow: hidden;
+  transition: max-height 0.3s ease, padding 0.3s ease;
+  color: var(--text-light);
+  font-size: 14px;
+  line-height: 1.6;
+}
+
+.thinking-block.expanded .thinking-content {
+  padding: 12px;
+  max-height: 500px;
+}
+
+.thinking-content p {
+  margin: 8px 0;
+}
+
 /* 输入区域 */
 .input-area {
   display: flex;