v0.3.7: 全面代码审计修复 - 20项Bug/安全/稳定性改进

src/renderer/components/SourceEditor/SourceEditor.tsx

@@ -23,6 +23,8 @@ export const SourceEditor = React.memo(function SourceEditor({ darkMode }: Sourc
   }, [activeTabId, updateTabContent, setModified])
 
   const handleKeyDown = useCallback((e: React.KeyboardEvent<HTMLTextAreaElement>) => {
+    const isCtrl = e.ctrlKey || e.metaKey
+
     // Tab 插入两个空格而非跳转焦点
     if (e.key === 'Tab') {
       e.preventDefault()
@@ -39,6 +41,40 @@ export const SourceEditor = React.memo(function SourceEditor({ darkMode }: Sourc
         setModified(activeTabId, true)
       }
     }
+
+    // Ctrl+B: 粗体
+    if (isCtrl && e.key === 'b') {
+      e.preventDefault()
+      const textarea = textareaRef.current
+      if (!textarea || !activeTabId) return
+      const start = textarea.selectionStart
+      const end = textarea.selectionEnd
+      const value = textarea.value
+      const selected = value.substring(start, end)
+      const newValue = value.substring(0, start) + '**' + selected + '**' + value.substring(end)
+      textarea.value = newValue
+      textarea.selectionStart = start + 2
+      textarea.selectionEnd = end + 2
+      updateTabContent(activeTabId, newValue)
+      setModified(activeTabId, true)
+    }
+
+    // Ctrl+I: 斜体
+    if (isCtrl && e.key === 'i') {
+      e.preventDefault()
+      const textarea = textareaRef.current
+      if (!textarea || !activeTabId) return
+      const start = textarea.selectionStart
+      const end = textarea.selectionEnd
+      const value = textarea.value
+      const selected = value.substring(start, end)
+      const newValue = value.substring(0, start) + '*' + selected + '*' + value.substring(end)
+      textarea.value = newValue
+      textarea.selectionStart = start + 1
+      textarea.selectionEnd = end + 1
+      updateTabContent(activeTabId, newValue)
+      setModified(activeTabId, true)
+    }
   }, [activeTabId, updateTabContent, setModified])
 
   return (