electron上下文菜单--指定弹出区域

/**
itemArr：菜单项
targetSelector：指定显示上下文菜单的区域type:string：#id，.className等
**/
const useContextMenu = (itemArr, targetSelector, deps) => {
        let clickedNode = {}
        const menu = new Menu()
        itemArr.forEach(item => {
            menu.append(new MenuItem(item))
        })
const handler = (e) => {
            // 区域限定
            //e.targets是否时document.querySelector(targetSelector)的子节点
            if (document.querySelector(targetSelector).contains(e.target)) {
                clickedNode.current = e.target
                e.preventDefault()
                menu.popup({
                    window: remote.getCurrentWindow()
                })
            }
        }
                
    window.addEventListener(‘contextmenu‘, handler) //右击鼠标时触发执行 handler

  }