menus.refresh() 编辑

Refreshes a menu that's being shown.

Updates the extension's menu items in the menu that the browser is currently showing, including changes that have been made since the menu was shown. Has no effect if the menu is not being shown. Rebuilding a shown menu is an expensive operation, only invoke this method when necessary.

This would typically be called from inside a menus.onShown event handler, after the handler has made any updates to the menu.

Firefox makes this function available via the contextMenus namespace as well as the menus namespace.

This is an asynchronous function that returns a Promise.

Syntax

browser.menus.refresh()

Parameters

None.

Return value

A Promise that is fulfilled with no arguments.

Browser compatibility

BCD tables only load in the browser

The compatibility table in this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request.

Examples

This example listens for the context menu to be shown over a link, then updates the openLabelledId menu item with the link's hostname:

function updateMenuItem(linkHostname) {
  browser.menus.update(openLabelledId, {
    title: `Open (${linkHostname})`
  });
  browser.menus.refresh();
}

browser.menus.onShown.addListener(info => {
  if (!info.linkUrl) {
    return;
  }
  let linkElement = document.createElement("a");
  linkElement.href = info.linkUrl;
  updateMenuItem(linkElement.hostname);
});

Example extensions

• menu-labelled-open