[Webkit-unassigned] [Bug 126338] New: [GTK] Draging from inner side of video to out side causes a crash

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=126338

           Summary: [GTK] Draging from inner side of video to out side
                    causes a crash
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: Unspecified
        OS/Version: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: WebKit Gtk
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: changseok.oh at collabora.com


This happens on both GTK and EFL ports, but not Mac port using MEDIA_CONTROL_SCRIPT

Program received signal SIGSEGV, Segmentation fault.
0x00007ffff69f6e85 in WebCore::SliderContainerElement::shadowPseudoId() const ()
   from /home/shivamidow/Projects/WebKit/WebKitBuild/Release/.libs/libwebkitgtk-3.0.so.0
(gdb) bt
#0  0x00007ffff69f6e85 in WebCore::SliderContainerElement::shadowPseudoId() const ()
   from /home/shivamidow/Projects/WebKit/WebKitBuild/Release/.libs/libwebkitgtk-3.0.so.0
#1  0x00007ffff676ebce in WebCore::ElementRuleCollector::collectMatchingRules(WebCore::MatchRequest const&, WebCore::StyleResolver::RuleRange&) ()
   from /home/shivamidow/Projects/WebKit/WebKitBuild/Release/.libs/libwebkitgtk-3.0.so.0
#2  0x00007ffff676fa18 in WebCore::ElementRuleCollector::matchUARules(WebCore::RuleSet*) ()
   from /home/shivamidow/Projects/WebKit/WebKitBuild/Release/.libs/libwebkitgtk-3.0.so.0
#3  0x00007ffff676fa82 in WebCore::ElementRuleCollector::matchUARules() ()
   from /home/shivamidow/Projects/WebKit/WebKitBuild/Release/.libs/libwebkitgtk-3.0.so.0
#4  0x00007ffff676fb13 in WebCore::ElementRuleCollector::matchAllRules(bool, bool) ()
   from /home/shivamidow/Projects/WebKit/WebKitBuild/Release/.libs/libwebkitgtk-3.0.so.0
#5  0x00007ffff67a17bb in WebCore::StyleResolver::styleForElement(WebCore::Element*, WebCore::RenderStyle*, WebCore::StyleSharingBehavior, WebCore::RuleMatchingBehavior, WebCore::RenderRegion*) ()
   from /home/shivamidow/Projects/WebKit/WebKitBuild/Release/.libs/libwebkitgtk-3.0.so.0
#6  0x00007ffff67cae40 in WebCore::Document::styleForElementIgnoringPendingStylesheets(WebCore::Element*) ()
   from /home/shivamidow/Projects/WebKit/WebKitBuild/Release/.libs/libwebkitgtk-3.0.so.0
#7  0x00007ffff67f71a7 in WebCore::Element::computedStyle(WebCore::PseudoId) ()
   from /home/shivamidow/Projects/WebKit/WebKitBuild/Release/.libs/libwebkitgtk-3.0.so.0
#8  0x00007ffff67cae18 in WebCore::Document::styleForElementIgnoringPendingStylesheets(WebCore::Element*) ()
   from /home/shivamidow/Projects/WebKit/WebKitBuild/Release/.libs/libwebkitgtk-3.0.so.0
#9  0x00007ffff67f71a7 in WebCore::Element::computedStyle(WebCore::PseudoId) ()
   from /home/shivamidow/Projects/WebKit/WebKitBuild/Release/.libs/libwebkitgtk-3.0.so.0
#10 0x00007ffff67cae18 in WebCore::Document::styleForElementIgnoringPendingStylesheets(WebCore::Element*) ()
   from /home/shivamidow/Projects/WebKit/WebKitBuild/Release/.libs/libwebkitgtk-3.0.so.0
#11 0x00007ffff67f71a7 in WebCore::Element::computedStyle(WebCore::PseudoId) ()
   from /home/shivamidow/Projects/WebKit/WebKitBuild/Release/.libs/libwebkitgtk-3.0.so.---Type <return> to continue, or q <return> to quit---
0
#12 0x00007ffff6814cae in WebCore::Node::hasEditableStyle(WebCore::Node::EditableLevel, WebCore::Node::UserSelectAllTreatment) const ()
   from /home/shivamidow/Projects/WebKit/WebKitBuild/Release/.libs/libwebkitgtk-3.0.so.0
#13 0x00007ffff681dfef in WebCore::Position::upstream(WebCore::EditingBoundaryCrossingRule) const ()
   from /home/shivamidow/Projects/WebKit/WebKitBuild/Release/.libs/libwebkitgtk-3.0.so.0
#14 0x00007ffff68e7f1b in WebCore::VisiblePosition::canonicalPosition(WebCore::Position const&) ()
   from /home/shivamidow/Projects/WebKit/WebKitBuild/Release/.libs/libwebkitgtk-3.0.so.0
#15 0x00007ffff68e8494 in WebCore::VisiblePosition::init(WebCore::Position const&, WebCore::EAffinity) ()
   from /home/shivamidow/Projects/WebKit/WebKitBuild/Release/.libs/libwebkitgtk-3.0.so.0
#16 0x00007ffff688ebf1 in WebCore::FrameSelection::localCaretRect() ()
   from /home/shivamidow/Projects/WebKit/WebKitBuild/Release/.libs/libwebkitgtk-3.0.so.0
#17 0x00007ffff688f65f in WebCore::FrameSelection::recomputeCaretRect() ()
   from /home/shivamidow/Projects/WebKit/WebKitBuild/Release/.libs/libwebkitgtk-3.0.so.0
#18 0x00007ffff6891afd in WebCore::FrameSelection::updateAppearance() ()
   from /home/shivamidow/Projects/WebKit/WebKitBuild/Release/.libs/libwebkitgtk-3.0.so.0
#19 0x00007ffff6b9d36e in WebCore::FrameView::performPostLayoutTasks() ()
   from /home/shivamidow/Projects/WebKit/WebKitBuild/Release/.libs/libwebkitgtk-3.0.so.0
#20 0x00007ffff6ba171d in WebCore::FrameView::layout(bool) ()
   from /home/shivamidow/Projects/WebKit/WebKitBuild/Release/.libs/libwebkitgtk-3.0.so.0
#21 0x00007ffff67d1879 in WebCore::Document::updateLayout() ()
   from /home/shivamidow/Projects/WebKit/WebKitBuild/Release/.libs/libwebkitgtk-3.0.so.0
#22 0x00007ffff67d2201 in WebCore::Document::updateLayoutIgnorePendingStylesheets() ()
   from /home/shivamidow/Projects/WebKit/WebKitBuild/Release/.libs/libwebkitgtk-3.0.so.0
#23 0x00007ffff72ff21c in webkitAccessibleGetNChildren(_AtkObject*) ()
   from /home/shivamidow/Projects/WebKit/WebKitBuild/Release/.libs/libwebkitgtk-3.0.so.0
#24 0x00007ffff72ebbb0 in WebCore::AXObjectCache::postPlatformNotification(WebCore::Acc---Type <return> to continue, or q <return> to quit---
essibilityObject*, WebCore::AXObjectCache::AXNotification) ()
   from /home/shivamidow/Projects/WebKit/WebKitBuild/Release/.libs/libwebkitgtk-3.0.so.0
#25 0x00007ffff6628802 in WebCore::AXObjectCache::notificationPostTimerFired(WebCore::Timer<WebCore::AXObjectCache>*) ()
   from /home/shivamidow/Projects/WebKit/WebKitBuild/Release/.libs/libwebkitgtk-3.0.so.0
#26 0x00007ffff65e3b29 in WebCore::ThreadTimers::sharedTimerFiredInternal() ()
   from /home/shivamidow/Projects/WebKit/WebKitBuild/Release/.libs/libwebkitgtk-3.0.so.0
#27 0x00007ffff65f7f52 in WebCore::sharedTimerTimeoutCallback(void*) ()
   from /home/shivamidow/Projects/WebKit/WebKitBuild/Release/.libs/libwebkitgtk-3.0.so.0
#28 0x00007ffff4c14d63 in g_timeout_dispatch (source=source at entry=0x782330, 
    callback=<optimized out>, user_data=<optimized out>) at gmain.c:4450
#29 0x00007ffff4c14206 in g_main_dispatch (context=0x643780) at gmain.c:3065
#30 g_main_context_dispatch (context=context at entry=0x643780) at gmain.c:3641
#31 0x00007ffff4c14558 in g_main_context_iterate (context=0x643780, 
    block=block at entry=1, dispatch=dispatch at entry=1, self=<optimized out>)
    at gmain.c:3712
#32 0x00007ffff4c1495a in g_main_loop_run (loop=0x969910) at gmain.c:3906
#33 0x00007ffff5c2741d in gtk_main () at gtkmain.c:1157
#34 0x00000000004038ec in main ()

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