[webkitgtk4/f21] Add patch for rbz#1156330

[catanzaro]

commit 8d1193c6fdb60c58590e9da2289cdf03601a04bb
Author: Michael Catanzaro <mcatanzaro at gnome.org>
Date:   Mon Mar 16 19:22:20 2015 -0500

    Add patch for rbz#1156330

 webkitgtk-2.6.5-ax-child-changed.patch | 17 +++++++++++++++++
 webkitgtk4.spec                        |  8 +++++++-
 2 files changed, 24 insertions(+), 1 deletion(-)
---
diff --git a/webkitgtk-2.6.5-ax-child-changed.patch b/webkitgtk-2.6.5-ax-child-changed.patch
new file mode 100644
index 0000000..6a9de60
--- /dev/null
+++ b/webkitgtk-2.6.5-ax-child-changed.patch
@@ -0,0 +1,17 @@
+--- a/Source/WebCore/accessibility/atk/AXObjectCacheAtk.cpp	
++++ a/Source/WebCore/accessibility/atk/AXObjectCacheAtk.cpp	
+@@ -80,6 +80,14 @@ void AXObjectCache::attachWrapper(AccessibilityObject* obj)
+     if (obj->accessibilityIsIgnoredByDefault())
+         return;
+ 
++    // Don't emit the signal if the object being added is not -- or not yet -- rendered,
++    // which can occur in nested iframes. In these instances we don't want to ignore the
++    // child. But if an assistive technology is listening, AT-SPI2 will attempt to create
++    // and cache the state set for the child upon emission of the signal. If the object
++    // has not yet been rendered, this will result in a crash.
++    if (!obj->renderer())
++        return;
++
+     // Don't emit the signal for objects whose parents won't be exposed directly.
+     AccessibilityObject* coreParent = obj->parentObjectUnignored();
+     if (!coreParent || coreParent->accessibilityIsIgnoredByDefault())
diff --git a/webkitgtk4.spec b/webkitgtk4.spec
index b0aa31f..154ce23 100644
--- a/webkitgtk4.spec
+++ b/webkitgtk4.spec
@@ -10,7 +10,7 @@
 
 Name:           webkitgtk4
 Version:        2.6.5
-Release:        1%{?dist}
+Release:        2%{?dist}
 Summary:        GTK+ Web content engine library
 
 License:        LGPLv2
@@ -21,6 +21,8 @@ Patch0:         webkit-1.1.14-nspluginwrapper.patch
 Patch1:         webkitgtk-2.6.4-disable-codec-installer.patch
 Patch2:         webkitgtk-2.5.90-cloop_fix.patch
 Patch3:         webkitgtk-2.5.2-commit_align.patch
+# https://bugs.webkit.org/show_bug.cgi?id=142309
+Patch4:         webkitgtk-2.6.5-ax-child-changed.patch
 
 BuildRequires:  at-spi2-core-devel
 BuildRequires:  bison
@@ -94,6 +96,7 @@ This package contains developer documentation for %{name}.
 %ifarch %{power64} aarch64 ppc
 %patch3 -p1 -b .commit_align
 %endif
+%patch4 -p1 -b .ax_child_changed
 
 # Remove bundled libraries
 rm -rf Source/ThirdParty/leveldb/
@@ -186,6 +189,9 @@ make %{?_smp_mflags} -C %{_target_platform}
 %{_datadir}/gtk-doc/html/webkitdomgtk-4.0/
 
 %changelog
+* Mon Mar 16 2015 Michael Catanzaro <mcatanzaro at gnome.org> - 2.6.5-2
+- Add patch for rbz#1156330
+
 * Thu Jan 15 2015 Tomas Popela <tpopela at redhat.com> - 2.6.5-1
 - Update to 2.6.5