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LibWeb: Don't allow HTMLTextAreaElement rows and cols to be set to 0

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In this case we should fall back to the default value.
This commit is contained in:
Tim Ledbetter 2024-11-28 16:08:14 +00:00 • committed by Andreas Kling
parent ae0c87c747
commit aafc829e6d
Notes: github-actions[bot] 2024-11-29 08:50:08 +00:00
4 changed files with 40 additions and 12 deletions
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10
Libraries/LibWeb/HTML/HTMLTextAreaElement.cpp
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@ -299,16 +299,16 @@ unsigned HTMLTextAreaElement::cols() const
return 20;
}
WebIDL::ExceptionOr<void> HTMLTextAreaElement::set_cols(unsigned cols)
WebIDL::ExceptionOr<void> HTMLTextAreaElement::set_cols(WebIDL::UnsignedLong cols)
{
if (cols > 2147483647)
if (cols == 0 || cols > 2147483647)
cols = 20;
return set_attribute(HTML::AttributeNames::cols, String::number(cols));
}
// https://html.spec.whatwg.org/multipage/form-elements.html#dom-textarea-rows
unsigned HTMLTextAreaElement::rows() const
WebIDL::UnsignedLong HTMLTextAreaElement::rows() const
{
// The cols and rows attributes are limited to only positive numbers with fallback. The rows IDL attribute's default value is 2.
if (auto rows_string = get_attribute(HTML::AttributeNames::rows); rows_string.has_value()) {
@ -318,9 +318,9 @@ unsigned HTMLTextAreaElement::rows() const
return 2;
}
WebIDL::ExceptionOr<void> HTMLTextAreaElement::set_rows(unsigned rows)
WebIDL::ExceptionOr<void> HTMLTextAreaElement::set_rows(WebIDL::UnsignedLong rows)
{
if (rows > 2147483647)
if (rows == 0 || rows > 2147483647)
rows = 2;
return set_attribute(HTML::AttributeNames::rows, String::number(rows));