Re: [tor-bugs] #32308 [Applications/Tor Browser]: Stop inner letterbox jiggling as border is dragged

["Tor Bug Tracker & Wiki" <blackhole@xxxxxxxxxxxxxx>]

#32308: Stop inner letterbox jiggling as border is dragged
-------------------------------------------------+-------------------------
 Reporter:  cypherpunks                          |          Owner:  tbb-
                                                 |  team
     Type:  defect                               |         Status:  new
 Priority:  Medium                               |      Milestone:
Component:  Applications/Tor Browser             |        Version:
 Severity:  Normal                               |     Resolution:
 Keywords:  tbb-9.0-issues, tbb-fingerprinting-  |  Actual Points:
  resolution                                     |
Parent ID:                                       |         Points:
 Reviewer:                                       |        Sponsor:
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Comment (by tom):

 This may be at odds with what letterboxing is aiming for.  It sounds like
 OP is looking for the (gray) border size to stay constant while the window
 is resized and when the resizing stops, the content window snaps and gets
 resized to the correct size.

 The opposite is actually the ideal solution: as you resize, the gray
 border will smoothly increase and decrease and the content window will
 move as it is recentered in the window. This would cause very noticeable
 jumps in content window size as the browser passes a threshold for the
 letterboxing.

 This is the ideal because we only want to report a letterboxed dimension
 to web content, never an in-between value.

 This is very similar to
 https://bugzilla.mozilla.org/show_bug.cgi?id=1556014 although 1556014 is a
 little different because the problem is that as you resize, the website
 can read some intermediate values. (As I explain there though, I'm not
 concerned about that.)

 Now because I'm not really concerned about those intermediate values,
 letting the content grow (without growing the grey border) as I explain in
 the first paragraph is not the worst thing (even though it does go against
 the goal of letterboxing.)



 I suppose, in a perfect world, we could figure out something where we
 improve this situation in a way that looks smooth but doesn't reveal
 intermediate values.

 Today; however, I do not know how to accomplish any of these goals. We are
 not handling 'beginresize' and 'endresize' events, we are recalculating
 things based on a single 'resize' event that occurs and I don't know how
 to infer a resize that's begin and not completed.

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/32308#comment:2>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
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