WebView.connectQueryPermissionState

gulong connectQueryPermissionState(T)(T callback,  Flag!"After" after =  No.After) if (isCallable!T
    &&  is(ReturnType!T ==  bool)
   && (Parameters!T.length <  1 || (ParameterStorageClassTuple!T[0]  ==  ParameterStorageClass.none &&  is(Parameters!T[0]  ==  webkit.permission_state_query.PermissionStateQuery)))
   && (Parameters!T.length <  2 || (ParameterStorageClassTuple!T[1]  ==  ParameterStorageClass.none &&  is(Parameters!T[1] :  webkit.web_view.WebView)))
   &&  Parameters!T.length <  3)

Connect to QueryPermissionState signal.

This signal allows the User-Agent to respond to permission requests for powerful features, as specified by the Permissions W3C Specification. You can reply to the query using [webkit.permission_state_query.PermissionStateQuery.finish].

You can handle the query asynchronously by calling [webkit.permission_state_query.PermissionStateQuery.ref_] on query and returning true. If the last reference of query is removed and the query has not been handled, the query result will be set to WEBKIT_QUERY_PERMISSION_PROMPT.

Parameters

`callback`	signal callback delegate or function to connect `bool callback(webkit.permission_state_query.PermissionStateQuery query, webkit.web_view.WebView webView)` `query` the #WebKitPermissionStateQuery (optional) `webView` the instance the signal is connected to (optional) `Returns` true if the message was handled, or false otherwise.
`after`	Yes.After to execute callback after default handler, No.After to execute before (default)

Returns

Signal ID