menus.onHidden
Fired when the browser stops displaying a menu: for example because the user clicked outside it or selected an item.
It is only triggered for menus that can be manipulated using the menus
API itself: this includes the context menu, the browser's tools menu, and the bookmarks menu.
This is most likely to be used in combination with the menus.onShown
and menus.refresh()
APIs: an extension can update the menu when it is shown, then undo the changes when it is hidden.
Firefox makes this event available via the contextMenus
namespace as well as the menus
namespace.
Syntax
browser.menus.onHidden.addListener(listener)
browser.menus.onHidden.removeListener(listener)
browser.menus.onHidden.hasListener(listener)
Events have three functions:
addListener(listener)
-
Adds a listener to this event.
removeListener(listener)
-
Stop listening to this event. The
listener
argument is the listener to remove. hasListener(listener)
-
Check whether
listener
is registered for this event. Returnstrue
if it is listening,false
otherwise.
addListener syntax
Parameters
callback
-
Function that will be called when this event occurs. The function will be passed no parameters.
Browser compatibility
BCD tables only load in the browser
Examples
This example just logs a message whenever a menu is hidden:
function hidden() {
console.log("Menu was hidden");
}
browser.menus.onHidden.addListener(hidden);