[Webkit-unassigned] [Bug 74914] New: :invalid style is not applied when a checked radio button is removed from its radio group

Mon Dec 19 22:05:28 PST 2011

https://bugs.webkit.org/show_bug.cgi?id=74914

           Summary: :invalid style is not applied when a checked radio
                    button is removed from its radio group
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: Unspecified
        OS/Version: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Forms
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: tkent at chromium.org

Repro:

<style>
:valid {
  border: solid 2px lime;
}
:invalid {
  border: solid 2px red;
}
input[type="radio"] {
 -webkit-appearance: none;
 width: 16px;
 height: 16px;
}
input[type="radio"]:checked {
  background-color: blue;
}
</style>
<body>
<form id=f>
<input type=radio name=n1 value=a id=a required>
<input type=radio name=n1 value=b id=b checked>
</form>
<script>
function $(id) { return document.getElementById(id); }

$('b').parentNode.removeChild($('b'));

</script>
</body>

This HTML causes an assertion failure with a debug build:

ASSERTION FAILED: m_isValid == validity()->valid()
/Volumes/d2/WebKit/Source/WebCore/html/HTMLFormControlElement.cpp(433) : virtual bool WebCore::HTMLFormControlElement::isValidFormControlElement()
1   0x102fab0d8 WebCore::HTMLFormControlElement::isValidFormControlElement()
2   0x102b32304 WebCore::SelectorChecker::checkOneSelector(WebCore::CSSSelector*, WebCore::Element*, WebCore::PseudoId&, bool, WebCore::SelectorChecker::VisitedMatchType, WebCore::RenderStyle*, WebCore::RenderStyle*) const
3   0x102b2fcfb WebCore::SelectorChecker::checkSelector(WebCore::CSSSelector*, WebCore::Element*, WebCore::PseudoId&, bool, WebCore::SelectorChecker::VisitedMatchType, WebCore::RenderStyle*, WebCore::RenderStyle*) const
4   0x102c16ff0 WebCore::CSSStyleSelector::checkSelector(WebCore::RuleData const&)
5   0x102bf5a82 WebCore::CSSStyleSelector::matchRulesForList(WTF::Vector<WebCore::RuleData, 0ul> const*, int&, int&, bool)
6   0x102bf5fca WebCore::CSSStyleSelector::matchRules(WebCore::RuleSet*, int&, int&, bool)
7   0x102bf6f55 WebCore::CSSStyleSelector::matchAllRules(WebCore::CSSStyleSelector::MatchResult&)
8   0x102bf8809 WebCore::CSSStyleSelector::styleForElement(WebCore::Element*, WebCore::RenderStyle*, bool, bool, WebCore::RenderRegion*)
9   0x102e3afb9 WebCore::Element::styleForRenderer()
10  0x102e3b44d WebCore::Element::recalcStyle(WebCore::Node::StyleChange)
11 ...

We need to call HTMLInputElement::updateCheckedRadioButtons() when a checked radio button is removed from the group.

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