feat(extension): 添加选择文件作为上下文功能

- 在 extension.ts 中注册选择文件命令
- 在 Webview 中添加文件选择按钮和上下文显示区域
- 实现文件选择逻辑，将选中文件内容发送到 Webview
- 在 Webview 中处理接收到的文件内容，显示文件名和内容
-

media/webview/script.js

@@ -8,7 +8,6 @@ document.addEventListener('DOMContentLoaded', () => {
     const loading = document.getElementById('loading');
 
     chatForm.addEventListener('submit', (e) => {
-        console.log(1111)
         e.preventDefault();
         const text = userInput.value.trim();
         if (!text) return;
@@ -21,7 +20,6 @@ document.addEventListener('DOMContentLoaded', () => {
 
         // addMessage('user', text);
         showLoading();
-
         userInput.value = '';
     });
 
@@ -88,7 +86,36 @@ document.addEventListener('DOMContentLoaded', () => {
             userInput.value = message.content; // 插入选中内容到输入框
             selectedCodeForContext = message.content;
             userInput.focus(); // 自动聚焦输入框
+        } else if (message.command === 'setContextFile') {
+            const contextPlaceholder = document.getElementById('context-placeholder');
+            const contextTab = document.getElementById('context-tab');
+            const fileNameElement = document.getElementById('context-file-name');
+            const fullPath = message.fileName;
+            const fileName = fullPath.split(/[\/\\]/).pop();
+
+            fileNameElement.innerText = fileName;
+            fileNameElement.title = fullPath;
+            selectedCodeForContext = message.fileContent;
+
+            // 隐藏占位符，显示文件标签
+            contextPlaceholder.classList.add('hidden');
+            contextTab.classList.remove('hidden');
         }
 
     });
+
+    document.getElementById('select-context-btn').addEventListener('click', () => {
+        vscode.postMessage({
+            command: 'selectContextFile'
+        });
+    });
+    // 添加关闭按钮事件监听
+    document.getElementById('close-context-btn').addEventListener('click', () => {
+        const contextPlaceholder = document.getElementById('context-placeholder');
+        const contextTab = document.getElementById('context-tab');
+
+        contextTab.classList.add('hidden');
+        contextPlaceholder.classList.remove('hidden');
+        selectedCodeForContext = '';
+    });
 });

media/webview/style.css

@@ -75,9 +75,9 @@ body {
 
 #chat-form {
     display: flex;
-    padding: 10px;
+    padding: 3px 10px;
     background-color: #282c34;
-    border-top: 1px solid #444;
+    /* border-top: 1px solid #444; */
 }
 
 #user-input {
@@ -112,3 +112,98 @@ body {
 .hidden {
     display: none;
 }
+
+.context-container {
+    display: flex;
+    align-items: center;
+    margin: 10px 0;
+    gap: 10px; /* 元素间的间距 */
+    padding: 1px 10px;
+}
+
+.context-tab {
+    display: flex;
+    align-items: center;
+    padding: 6px 10px;
+    background-color: #e9e9e9;
+    border-radius: 4px;
+    font-size: 13px;
+    min-width: 0; /* 允许收缩 */
+    flex: 0 1 auto; /* 不要占据多余空间 */
+    color: #000000;
+    cursor: default;
+}
+
+.context-tab.hidden {
+    display: none;
+}
+
+.file-name {
+    flex: 1;
+    overflow: hidden;
+    text-overflow: ellipsis;
+    white-space: nowrap;
+    margin-right: 10px;
+}
+
+.context-placeholder {
+    display: flex;
+    align-items: center;
+    padding: 6px 2px;
+    color: #666;
+    font-size: 13px;
+    min-width: 0;
+}
+
+.placeholder-text {
+    overflow: hidden;
+    text-overflow: ellipsis;
+    white-space: nowrap;
+}
+
+.context-placeholder.hidden {
+    display: none;
+}
+
+
+.close-btn {
+    background: none;
+    border: none;
+    font-size: 18px;
+    cursor: pointer;
+    color: #666;
+    padding: 0;
+    width: 20px;
+    height: 20px;
+    display: flex;
+    align-items: center;
+    justify-content: center;
+    flex-shrink: 0;
+}
+
+.close-btn:hover {
+    color: #ff0000;
+    background-color: rgba(0,0,0,0.1);
+    border-radius: 50%;
+}
+
+.select-context-btn {
+    width: 24px;
+    height: 24px;
+    padding: 0;
+    background-color: #007acc;
+    color: white;
+    border: none;
+    border-radius: 50%;
+    font-size: 16px;
+    font-weight: bold;
+    cursor: pointer;
+    display: flex;
+    align-items: center;
+    justify-content: center;
+    flex-shrink: 0;
+}
+
+.select-context-btn:hover {
+    background-color: #005a9e;
+}

src/extension.ts

@@ -47,8 +47,33 @@ export function activate(context: vscode.ExtensionContext) {
         }
     });
 
+    // 注册选择文件命令
+    const selectFileCommand = vscode.commands.registerCommand('ai-chat.selectFileAsContext', async () => {
+        const uris = await vscode.window.showOpenDialog({
+            canSelectFiles: true,
+            canSelectFolders: false,
+            canSelectMany: false, // 单选
+            title: "选择一个文件作为上下文"
+        });
+
+        if (uris && uris.length > 0) {
+            const selectedFileUri = uris[0];
+            const fileContent = await vscode.workspace.fs.readFile(selectedFileUri);
+            const decodedContent = new TextDecoder("utf-8").decode(fileContent);
+
+            // 发送文件内容到 Webview
+            if (panel && panel.webview) {
+                panel.webview.postMessage({
+                    command: 'setContextFile',
+                    fileName: selectedFileUri.fsPath,
+                    fileContent: decodedContent
+                });
+            }
+        }
+    });
+
     // 添加到 subscriptions
-    context.subscriptions.push(statusBarItem, openWebviewCommand, addToChatCommand);
+    context.subscriptions.push(statusBarItem, openWebviewCommand, addToChatCommand,selectFileCommand);
 }
 
 function openWebview(
@@ -117,6 +142,27 @@ function openWebview(
 
                     panel.webview.postMessage({ command: 'hideLoading' });
                     break;
+                case 'selectContextFile':
+                    // 执行文件选择逻辑
+                    const uris = await vscode.window.showOpenDialog({
+                        canSelectFiles: true,
+                        canSelectFolders: false,
+                        canSelectMany: false,
+                        title: "选择一个文件作为上下文"
+                    });
+
+                    if (uris && uris.length > 0) {
+                        const selectedFileUri = uris[0];
+                        const fileContent = await vscode.workspace.fs.readFile(selectedFileUri);
+                        const decodedContent = new TextDecoder("utf-8").decode(fileContent);
+
+                        panel.webview.postMessage({
+                            command: 'setContextFile',
+                            fileName: selectedFileUri.fsPath,
+                            fileContent: decodedContent
+                        });
+                    }
+                    break;
             }
         },
         undefined,
@@ -187,8 +233,22 @@ function getWebviewContent(styleUri: vscode.Uri, scriptUri: vscode.Uri,highlight
         </head>
         <body>
             <div class="chat-container">
+                <!--对话区-->
                 <div id="chat-box"></div>
             
+                <!--文件选择-->
+                <div class="context-container">
+                    <button id="select-context-btn" class="select-context-btn" title="选择上下文文件">+</button>
+                    
+                     <div id="context-placeholder" class="context-placeholder">
+                        <span class="placeholder-text">添加上下文</span>
+                    </div>
+                    
+                    <div id="context-tab" class="context-tab hidden">
+                        <span id="context-file-name" class="file-name">添加上下文</span>
+                        <button id="close-context-btn" class="close-btn" title="清除上下文">×</button>
+                    </div>
+                </div>
                 <!-- 聊天输入表单 -->
                 <form id="chat-form">
                     <input type="text" id="user-input" placeholder="输入你的问题..." required />