[Webkit-unassigned] [Bug 71035] crash near WebCore::QtFallbackWebPopupCombo::hidePopup when dismissing a <select> before it is fully rendered (Mac only)

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=71035

Steven Dorigotti <s.dorigotti at endian.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |s.dorigotti at endian.com

--- Comment #2 from Steven Dorigotti <s.dorigotti at endian.com> ---
I can confirm both the bug and the solution provided by Paul Sturm. It doesn't seem to have noticeable side effects.

cheers,
Steven

ps: this is the patch I apply to Qt 4.8.6:

--- qt.orig/qt-everywhere-opensource-src-4.8.6/src/3rdparty/webkit/Source/WebKit/qt/WebCoreSupport/QtFallbackWebPopup.cpp
+++ qt/qt-everywhere-opensource-src-4.8.6/src/3rdparty/webkit/Source/WebKit/qt/WebCoreSupport/QtFallbackWebPopup.cpp
@@ -66,12 +66,11 @@
     }
 #endif // QT_NO_IM

-    QComboBox::hidePopup();
-
     if (!m_ownerPopup.m_popupVisible)
         return;

     m_ownerPopup.m_popupVisible = false;
+    QComboBox::hidePopup();
     emit m_ownerPopup.didHide();
     m_ownerPopup.destroyPopup();
 }

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