!147 模态框不失去焦点

Merge pull request !147 from ZoeLeeFZ/mg_bug

src/UI/Components/Modal/ModalsManage.tsx

@@ -79,6 +79,12 @@ export class ModalManage
         //捕获蒙版的事件
         this.m_Masking.addEventListener('keydown', e => e.stopPropagation());
         this.m_Masking.addEventListener('click', e => e.stopPropagation());
+        //如果模态框,焦点保持在模态框上
+        this.m_Masking.addEventListener('focus', () =>
+        {
+            if (this.m_IsModal)
+                this.m_ModalContainer.focus();
+        });
     }
     OnKeyDown(e: KeyboardEvent)
     {
@@ -118,7 +124,7 @@ export class ModalManage
     {
         this.RenderModeless(Component, pos, props);
         this.m_IsModal = true;
-        this.m_Masking.style.zIndex = "2";
+        this.m_Masking.style.zIndex = "25";
     }
     async ExecCmd()
     {