T23: Add dropdown outside-click and Escape close for RibbonBar

frontend/src/components/RibbonBar.tsx

@@ -1,4 +1,4 @@
-import React, { useState, useRef, useCallback } from 'react';
+import React, { useState, useRef, useCallback, useEffect } from 'react';
 import type { YjsDocument } from '../crdt/YjsDocument';
 import { exportDrawing, type ExportFormat } from '../services/exportService';
 import { importDrawing, type ImportFormat, type ImportResult } from '../services/importService';
@@ -19,6 +19,12 @@ const RibbonBar: React.FC<RibbonBarProps> = ({ onTabChange, yjsDoc }) => {
   const fileInputRef = useRef<HTMLInputElement>(null);
   const pendingImportFormat = useRef<ImportFormat>('json');
 
+  // Refs for dropdown wrappers (for outside-click detection)
+  const exportDropdownRef = useRef<HTMLDivElement>(null);
+  const importDropdownRef = useRef<HTMLDivElement>(null);
+  // Ref to track the trigger button that opened the print preview (for focus restoration)
+  const printTriggerRef = useRef<HTMLButtonElement>(null);
+
   const tabs = [
     { id: 'draw', label: 'Draw', icon: '✏️' },
     { id: 'modify', label: 'Modify', icon: '🔧' },
@@ -82,6 +88,40 @@ const RibbonBar: React.FC<RibbonBarProps> = ({ onTabChange, yjsDoc }) => {
     }
   }, [yjsDoc]);
 
+  // Outside-click and Escape close for dropdowns
+  useEffect(() => {
+    const handleClickOutside = (e: MouseEvent) => {
+      const target = e.target as Node;
+      if (showExportMenu && exportDropdownRef.current && !exportDropdownRef.current.contains(target)) {
+        setShowExportMenu(false);
+      }
+      if (showImportMenu && importDropdownRef.current && !importDropdownRef.current.contains(target)) {
+        setShowImportMenu(false);
+      }
+    };
+
+    const handleKeyDown = (e: KeyboardEvent) => {
+      if (e.key === 'Escape') {
+        if (showExportMenu) {
+          setShowExportMenu(false);
+        }
+        if (showImportMenu) {
+          setShowImportMenu(false);
+        }
+      }
+    };
+
+    if (showExportMenu || showImportMenu) {
+      document.addEventListener('mousedown', handleClickOutside);
+      document.addEventListener('keydown', handleKeyDown);
+    }
+
+    return () => {
+      document.removeEventListener('mousedown', handleClickOutside);
+      document.removeEventListener('keydown', handleKeyDown);
+    };
+  }, [showExportMenu, showImportMenu]);
+
   return (
     <div className="ribbon-bar" role="menubar" aria-label="CAD Functions">
       {tabs.map((tab) => (
@@ -99,7 +139,7 @@ const RibbonBar: React.FC<RibbonBarProps> = ({ onTabChange, yjsDoc }) => {
 
       <div className="ribbon-divider" aria-hidden="true" />
 
-      <div className="ribbon-dropdown-wrapper">
+      <div className="ribbon-dropdown-wrapper" ref={exportDropdownRef}>
         <button
           className="ribbon-tab"
           onClick={() => setShowExportMenu(!showExportMenu)}
@@ -120,7 +160,7 @@ const RibbonBar: React.FC<RibbonBarProps> = ({ onTabChange, yjsDoc }) => {
         )}
       </div>
 
-      <div className="ribbon-dropdown-wrapper">
+      <div className="ribbon-dropdown-wrapper" ref={importDropdownRef}>
         <button
           className="ribbon-tab"
           onClick={() => setShowImportMenu(!showImportMenu)}
@@ -142,6 +182,7 @@ const RibbonBar: React.FC<RibbonBarProps> = ({ onTabChange, yjsDoc }) => {
       <div className="ribbon-divider" aria-hidden="true" />
 
       <button
+        ref={printTriggerRef}
         className="ribbon-tab"
         onClick={() => setShowPrintPreview(true)}
         role="menuitem"
@@ -163,7 +204,13 @@ const RibbonBar: React.FC<RibbonBarProps> = ({ onTabChange, yjsDoc }) => {
       />
 
       {showPrintPreview && yjsDoc && (
-        <PrintPreview yjsDoc={yjsDoc} onClose={() => setShowPrintPreview(false)} />
+        <PrintPreview yjsDoc={yjsDoc} onClose={() => {
+          setShowPrintPreview(false);
+          // Restore focus to the Print trigger button
+          if (printTriggerRef.current) {
+            printTriggerRef.current.focus();
+          }
+        }} />
       )}
     </div>
   );