feat: confirm creating missing session cwd

public/app.js

@@ -102,6 +102,7 @@
   let currentSessionRunning = false;
   let fileBrowserState = null;
   let directoryPickerState = null;
+  let pendingNewSessionRequest = null;
   let skipDeleteConfirm = localStorage.getItem('cc-web-skip-delete-confirm') === '1';
   let pendingInitialSessionLoad = false;
 
@@ -1747,6 +1748,7 @@
         break;
 
       case 'session_info':
+        if (pendingNewSessionRequest) pendingNewSessionRequest = null;
         const snapshot = normalizeSessionSnapshot(msg);
         if (activeSessionLoad?.sessionId === msg.sessionId) {
           activeSessionLoad.snapshot = snapshot;
@@ -1902,6 +1904,39 @@
         break;
 
       case 'error':
+        if (msg.code === 'new_session_cwd_missing' && pendingNewSessionRequest?.cwd) {
+          const request = pendingNewSessionRequest;
+          pendingNewSessionRequest = null;
+          showSimpleConfirm({
+            title: '目录不存在',
+            message: `${msg.cwd || request.cwd}\n\n要先创建这个目录再进入新会话吗？`,
+            confirmText: '创建目录',
+            cancelText: '返回修改',
+            onConfirm: () => {
+              pendingNewSessionRequest = { ...request };
+              send({
+                type: 'new_session',
+                cwd: request.cwd,
+                agent: request.agent,
+                mode: request.mode,
+                createCwd: true,
+              });
+            },
+            onCancel: () => {
+              showNewSessionModal({
+                agent: request.agent,
+                cwd: request.rawCwd || request.cwd,
+                mode: request.mode,
+              });
+            },
+          });
+          clearSessionLoading();
+          if (!isGenerating && currentSessionId) {
+            setCurrentSessionRunningState(!!getSessionMeta(currentSessionId)?.isRunning);
+          }
+          break;
+        }
+        if (pendingNewSessionRequest) pendingNewSessionRequest = null;
         appendError(msg.message);
         clearSessionLoading();
         if (!isGenerating && currentSessionId) {
@@ -2732,6 +2767,47 @@
     return '删除本会话将同步删去本地 Claude 中的会话历史，不可恢复。确认删除？';
   }
 
+  function showSimpleConfirm(options = {}) {
+    const overlay = document.createElement('div');
+    overlay.className = 'settings-overlay';
+    overlay.style.zIndex = '10002';
+
+    const box = document.createElement('div');
+    box.className = 'settings-panel';
+    const title = options.title ? `<div style="font-size:1em;font-weight:700;color:var(--text-primary);margin-bottom:10px">${escapeHtml(options.title)}</div>` : '';
+    const confirmText = options.confirmText || '确认';
+    const cancelText = options.cancelText || '取消';
+
+    box.innerHTML = `
+      ${title}
+      <div style="font-size:0.9em;color:var(--text-primary);margin-bottom:20px;line-height:1.7;word-break:break-word;white-space:pre-line">${escapeHtml(options.message || '')}</div>
+      <div style="display:flex;flex-direction:column;gap:8px">
+        <button id="simple-confirm-ok" style="width:100%;padding:10px;border:none;border-radius:10px;background:var(--accent);color:#fff;font-size:0.95em;font-weight:600;cursor:pointer;font-family:inherit">${escapeHtml(confirmText)}</button>
+        <button id="simple-confirm-cancel" style="width:100%;padding:9px;border:none;border-radius:10px;background:transparent;color:var(--text-muted);font-size:0.85em;cursor:pointer;font-family:inherit">${escapeHtml(cancelText)}</button>
+      </div>
+    `;
+    overlay.appendChild(box);
+    document.body.appendChild(overlay);
+
+    const close = () => {
+      if (overlay.parentNode) overlay.parentNode.removeChild(overlay);
+    };
+    box.querySelector('#simple-confirm-ok').addEventListener('click', () => {
+      close();
+      if (typeof options.onConfirm === 'function') options.onConfirm();
+    });
+    box.querySelector('#simple-confirm-cancel').addEventListener('click', () => {
+      close();
+      if (typeof options.onCancel === 'function') options.onCancel();
+    });
+    overlay.addEventListener('click', (e) => {
+      if (e.target === overlay) {
+        close();
+        if (typeof options.onCancel === 'function') options.onCancel();
+      }
+    });
+  }
+
   function showDeleteConfirm(agent, onConfirm) {
     const overlay = document.createElement('div');
     overlay.className = 'settings-overlay';
@@ -4639,10 +4715,11 @@
   // --- New Session Modal ---
   let _onCwdSuggestions = null;
 
-  function showNewSessionModal() {
-    const targetAgent = currentAgent;
+  function showNewSessionModal(options = {}) {
+    const targetAgent = normalizeAgent(options.agent || currentAgent);
     const targetLabel = AGENT_LABELS[targetAgent] || AGENT_LABELS.claude;
     const recentCwds = getRecentCwds();
+    const requestedMode = ['default', 'plan', 'yolo'].includes(options.mode) ? options.mode : currentMode;
     let suggestionsRequested = false;
     let suggestionState = {
       defaultPath: '',
@@ -4689,7 +4766,7 @@
     const createBtn = overlay.querySelector('#ns-create-btn');
     const pickDirBtn = overlay.querySelector('#ns-pick-dir-btn');
 
-    cwdInput.value = recentCwds[0] || '';
+    cwdInput.value = String(options.cwd || recentCwds[0] || '').trim();
 
     function getMergedCwdSuggestions() {
       const seen = new Set();
@@ -4759,9 +4836,16 @@
 
     function createSession() {
       const cwd = getEffectiveCwd();
+      const rawCwd = cwdInput.value.trim();
+      pendingNewSessionRequest = {
+        cwd,
+        rawCwd,
+        agent: targetAgent,
+        mode: requestedMode,
+      };
       close();
       if (cwd) saveRecentCwd(cwd);
-      send({ type: 'new_session', cwd, agent: targetAgent, mode: currentMode });
+      send({ type: 'new_session', cwd, agent: targetAgent, mode: requestedMode });
     }
 
     pickDirBtn.addEventListener('click', () => {