hello,I wanna disable and enable items in menu dynamic,how to achive it.
@Gnails menu items are tied to commands. In order to display menu items dynamically as enabled/disabled the command will need to include a corresponding isEnabled:
For example, in this case we use a service to enable the command (and subsequently the menu item) when at least 1 workspace roots is present:
commands.registerCommand(SearchInWorkspaceCommands.OPEN_SIW_WIDGET, {
isEnabled: () => this.workspaceService.tryGetRoots().length > 0,
execute: async () => {
const widget = await this.openView({ activate: true });
widget.updateSearchTerm(this.getSearchTerm());
}
});
If you need to completely remove menu items then you can unregister them: How to disable Menu/Sub menu items via my custom Extensions
it works,thanks
Is there any method to achieve multi-level submenu?
@Gnails you can take a look at the example under @theia/api-samples for menu (you can use the same idea of nested menu paths to create even more levels if necessary):
In this example we create a submenu:
ok 