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LibWeb: Implement Element::scroll_by(HTML::ScrollToOptions)

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This commit is contained in:
Shannon Booth
2024-05-04 13:14:16 +12:00
committed by Andrew Kaster
parent e5d03e382e
commit e640a68733
2 changed files with 16 additions and 4 deletions
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18
Userland/Libraries/LibWeb/DOM/Element.cpp
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@@ -2159,10 +2159,22 @@ void Element::scroll_by(double x, double y)
dbgln("FIXME: Implement Element::scroll_by({}, {})", x, y);
}
// https://drafts.csswg.org/cssom-view/#dom-window-scrollby
void Element::scroll_by(HTML::ScrollToOptions const&)
// https://drafts.csswg.org/cssom-view/#dom-element-scrollby
void Element::scroll_by(HTML::ScrollToOptions options)
{
dbgln("FIXME: Implement Element::scroll_by(ScrollToOptions)");
// 1. Let options be the argument.
// 2. Normalize non-finite values for left and top dictionary members of options, if present.
auto left = HTML::normalize_non_finite_values(options.left);
auto top = HTML::normalize_non_finite_values(options.top);
// 3. Add the value of scrollLeft to the left dictionary member.
options.left = scroll_left() + left;
// 4. Add the value of scrollTop to the top dictionary member.
options.top = scroll_top() + top;
// 5. Act as if the scroll() method was invoked with options as the only argument.
scroll(options);
}
bool Element::id_reference_exists(String const& id_reference) const