nux::WindowCompositor::UpdateMouseOwner SIGSEGV segfault

[Brandon Schaefer]

When right clicking quicklist then left clicking any item in the quicklist causes a crash.

The crash came from rev: 669.

The problem is when you click EmitMouseUpSignal goes off, which in unity causes UnGrabedPointer to go off. When UnGrabbedPointer goes off it resets both mouse_owner_area_ and mouse_over_area_ to NULL. Right after the EmitMouseUpSignal is an if statement:

if (mouse_owner_area_ == mouse_over_area_) // which both are NULL so it is true

this causes:

EmitMouseClickSignal to segfault....

Stacktrace:
http://paste.ubuntu.com/1231196/

[Brandon Schaefer (brandontschaefer)]

A simple fix would be to add this check in the if statement: mouse_owner_area_ != NULL but that would causes EmitMouseClickSignal to not emit...(though it is NULL anyone, possibly there could be a better fix...)

[Launchpad Janitor (janitor)]

This bug was fixed in the package nux - 4.0.0daily12.12.05-0ubuntu1

---------------
nux (4.0.0daily12.12.05-0ubuntu1) raring; urgency=low

  [ Michael Terry ]
  * debian/control:
    - Update Vcs-Bzr
    - Build-Depend on dh-autoreconf and gnome-common
  * debian/rules:
    - Use dh_autoreconf
    - Enable headless tests during build
  * Switch to dh9 and multiarch
  * Automatic snapshot from revision 700 (bootstrap)
    - Fix crash when lift clicking after right clicking (LP: #1057809)
    - Fix crash on amd64 from an invalid cast (LP: #1052765)
    - Fix a couple crashes in example code (LP: #1064918)
    - Fix dash and launcher being all black (LP: #1067860)
    - Fix launcher dragging the wrong way (LP: #1057995)
    - Only load textures once they are needed (LP: #816692)
    - Add pointer checks for invalid cached textures (LP: #1066788)
    - Fix some FTBFS's on armhf (LP: #1065293, LP: #1067081)
    - Fix a bunch of compile warnings (LP: #1056633)
    - Removed some unused code (LP: #937583)

  [ Didier Roche ]
  * Transition packaging to Nux 4.0
  * Add split mode for daily build

  [ Ricardo Salveti de Araujo ]
  * Doesn't need to depend on gcc 4.6 anymore (LP: #1044836)
  * make check-headless should respect DEB_BUILD_OPTIONS=nocheck
  * Does not need to be built with gcc 4.6 anymore (LP: #1044836)

  [ Ying-Chun Liu (PaulLiu) ]
  * Unable to use H.I.M.E. input method in the Unity search bar( & HUD
    also) in Ubuntu 12.04LTS | 無法於Ubuntu 12.04LTS的Unity
    searchbar（以及HUD）使用H.I.M.E.輸入法 (LP: #973808)
  * Support input methods beside ibus (LP: #983254)

  [ Automatic PS uploader ]
  * Automatic snapshot from revision 727
 -- Automatic PS uploader <email address hidden> Wed, 05 Dec 2012 09:27:01 +0000

[Stephen M. Webb (bregma)]

Fix Released in Nux Nux 4.0.0.