How to use the remote.getCurrentWindow function in remote

$('input').on('contextmenu', function (e) {
		// use current menu, probably the one that was built the last time spellcheck ran
		menu.popup(remote.getCurrentWindow());
		// build a new one with only select all in it
		menu = Menu.buildFromTemplate(template);
	})
}

if(args.dev){
  // Make the main window centered, visible, and opened with dev tools
  var currentWindow = require('remote').getCurrentWindow();
  currentWindow.setSize(800, 600);
  currentWindow.center();
  currentWindow.show();
  currentWindow.openDevTools();
}

window.onload = function () {
        var Remote = require('remote');
        var currentWindow = Remote.getCurrentWindow();
        currentWindow.setSize(800, 600);
        currentWindow.center();
        currentWindow.show();
        currentWindow.openDevTools();
        console.error(error.stack || error);
    };
}

_clickToShowContextMenu: function(playlist, event) {
    event.preventDefault();
    var menu = this._createContextMenuForPlaylist(playlist);
    menu.popup(Remote.getCurrentWindow());
  },

MenuService.prototype.showMenu = menuItems => {
      let menu = new Menu();

      for (let i = 0; i < menuItems.length; i++) {
        let menuItem = menuItems[i];

        if (!menuItem.label || !menuItem.click) {
          logger.warn('MenuService - registerContextMenu - skipping menu item because it does not have either a label or a click function');
          continue;
        }

        menu.append(new MenuItem(menuItem));
      }

      menu.popup(remote.getCurrentWindow());
    };

$('#messageArea').on('contextmenu', 'line', function (e) {
		e.preventDefault();
		textMenu.popup(remote.getCurrentWindow());
	})

window.addEventListener('contextmenu', function (e) {
    e.preventDefault();
    menu.popup(remote.getCurrentWindow());
  }, false);

function getWindow (win) {
    if (typeof win === "number") {
        return BrowserWindow.fromId(win);
    } else if (win instanceof BrowserWindow) {
        return win;
    } else if (win && typeof win.browserWindow !== "undefined") {
        return win.browserWindow;
    } else if (typeof remote !== "undefined") {
        return remote.getCurrentWindow();
    } else {
        return BrowserWindow.getFocusedWindow();
    }
}

document.addEventListener("keydown", function (e) {
			  if (e.which === 123) {
				  require('remote').getCurrentWindow().toggleDevTools();
			  }
		  });

document.addEventListener("keydown", function (e) {
    if (e.which === 123) {
        require('remote').getCurrentWindow().toggleDevTools();
    } else if (e.which === 116) {
        location.reload();
    }
});