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Re: Catching event from message alert box, and wait until resolved?

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Den måndag 8 oktober 2018 kl. 06:45:35 UTC+2 skrev JJ:
> On Sun, 7 Oct 2018 10:06:51 -0700 (PDT), Jonas Thörnvall wrote:
> > I am trying to get my sequenser to handle sysex messages. The procedure is
> > pretty simple 
> > if (navigator.requestMIDIAccess) {
> >   navigator.requestMIDIAccess(
> >       {sysex: true} //Yeah it is just to set sysex : true
> >     )
> >     .then(success, failure);
> > }
> > 
> > Problem is that the sysex : true generate a message box event. that have
> > to be answered. 
> > 
> > file: /// wants to use your midi device 
> 
> That message box is part of the web browser security system. It can't be
> bypassed unless the site in added into the allow list.
> 
> > But the program runs on so it gets success and try to read in ports, but
> > apparently the midiobject is not accessible until the alert box event
> > answered. 
> 
> `requestMIDIAccess()` is an asynchronous method. If the script tries to
> access the resource without waiting for the resourse to be available, then
> it's guaranteed to fail.
> 
> > How can i sidestep that problem or somehow wait for the alert box to be
> > closed, because i guess that is the problem with the ports within
> > midiobjects not accessible. Works fine when sysex false.
> 
> You're asking about hacking a security system. The answer would obviously be
> no.

One could think of it like this we create another function  that main that will  wait for the alert box to get resolved. Let us call it waitAlertBox(); from the we will call our "main.js which call listport function.

Now the question become how do we know the state of the alert box? I have no idea have you? It must have some property value "resolved true or false"?

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Catching event from message alert box, and wait until resolved? Jonas Thörnvall <jonas.thornvall@gmail.com> - 2018-10-07 10:06 -0700
  Re: Catching event from message alert box, and wait until resolved? Jonas Thörnvall <jonas.thornvall@gmail.com> - 2018-10-07 16:12 -0700
  Re: Catching event from message alert box, and wait until resolved? JJ <jj4public@vfemail.net> - 2018-10-08 11:45 +0700
    Re: Catching event from message alert box, and wait until resolved? Jonas Thörnvall <jonas.thornvall@gmail.com> - 2018-10-07 22:58 -0700
      Re: Catching event from message alert box, and wait until resolved? JJ <jj4public@vfemail.net> - 2018-10-10 05:39 +0700
        Re: Catching event from message alert box, and wait until resolved? Jonas Thörnvall <jonas.thornvall@gmail.com> - 2018-10-09 21:50 -0700
          Re: Catching event from message alert box, and wait until resolved? JJ <jj4public@vfemail.net> - 2018-10-11 20:40 +0700
            Re: Catching event from message alert box, and wait until resolved? Jonas Thörnvall <jonas.thornvall@gmail.com> - 2018-10-11 15:11 -0700
              Re: Catching event from message alert box, and wait until resolved? Jonas Thörnvall <jonas.thornvall@gmail.com> - 2018-10-14 20:56 -0700
    Re: Catching event from message alert box, and wait until resolved? Jonas Thörnvall <jonas.thornvall@gmail.com> - 2018-10-07 23:13 -0700
      Re: Catching event from message alert box, and wait until resolved? Jonas Thörnvall <jonas.thornvall@gmail.com> - 2018-10-08 08:09 -0700

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