WebKit2.WebView.prototype.can_execute_editing_command

function can_execute_editing_command(command: String, cancellable: Gio.Cancellable, callback: Gio.AsyncReadyCallback): void {
    // Gjs wrapper for webkit_web_view_can_execute_editing_command()
}

Asynchronously execute the given editing command.

When the operation is finished, callback will be called. You can then call WebKit2.WebView.prototype.can_execute_editing_command_finish to get the result of the operation.

command: the command to check
cancellable: a Gio.Cancellable or null to ignore
callback: a Gio.AsyncReadyCallback to call when the request is satisfied