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LibWeb: Add AO for "normalize non-finite values"

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We had implemented this in two different ways. Add an AO to to align the
implementations.
This commit is contained in:
Shannon Booth 2024-05-04 12:39:45 +12:00 • committed by Andrew Kaster
commit e5d03e382e
Notes: sideshowbarker 2024-07-17 08:38:37 +09:00
3 changed files with 27 additions and 12 deletions
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14
Userland/Libraries/LibWeb/HTML/Window.cpp
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@ -1368,8 +1368,8 @@ void Window::scroll(ScrollToOptions const& options)
auto y = options.top.value_or(viewport_rect.y());
// 3. Normalize non-finite values for x and y.
x = JS::Value(x).is_finite_number() ? x : 0;
y = JS::Value(y).is_finite_number() ? y : 0;
x = HTML::normalize_non_finite_values(x);
y = HTML::normalize_non_finite_values(y);
// 5. Let viewport width be the width of the viewport excluding the width of the scroll bar, if any.
auto viewport_width = viewport_rect.width();
@ -1438,16 +1438,14 @@ void Window::scroll(double x, double y)
void Window::scroll_by(ScrollToOptions options)
{
// 2. Normalize non-finite values for the left and top dictionary members of options.
auto x = options.left.value_or(0);
auto y = options.top.value_or(0);
x = JS::Value(x).is_finite_number() ? x : 0;
y = JS::Value(y).is_finite_number() ? y : 0;
auto left = HTML::normalize_non_finite_values(options.left);
auto top = HTML::normalize_non_finite_values(options.top);
// 3. Add the value of scrollX to the left dictionary member.
options.left = x + scroll_x();
options.left = left + scroll_x();
// 4. Add the value of scrollY to the top dictionary member.
options.top = y + scroll_y();
options.top = top + scroll_y();
// 5. Act as if the scroll() method was invoked with options as the only argument.
scroll(options);