[tor-bugs] #19273 [Applications/Tor Browser]: Write C++ patch to replace external applications helper dialog workaround

[Tor Bug Tracker & Wiki]

#19273: Write C++ patch to replace external applications helper dialog workaround
--------------------------------------+------------------------------
 Reporter:  gk                        |          Owner:  mcs
     Type:  task                      |         Status:  needs_review
 Priority:  High                      |      Milestone:
Component:  Applications/Tor Browser  |        Version:
 Severity:  Normal                    |     Resolution:
 Keywords:  TorBrowserTeam201606R     |  Actual Points:
Parent ID:                            |         Points:
 Reviewer:                            |        Sponsor:  SponsorU
--------------------------------------+------------------------------

Comment (by mcs):

 Replying to [comment:3 cypherpunks]:
 > It looks like you will get a random result, if there are multiple
 observers that disagree. Presumably, there is only one right now, but what
 happens if this code is upstreamed?

 Good point. The observer service does not provide a way to avoid notifying
 all the observers, but we could specify that all modules that handle
 "external-app-requested" should not do anything if cancel has already been
 requested (subject.data == true). I think that will solve the problem.

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/19273#comment:4>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
The Tor Project: anonymity online