RGBCube/serenity
1
Fork 0
mirror of https://github.com/RGBCube/serenity synced 2025-07-25 19:07:35 +00:00
Code Issues Activity Actions

LibWeb+WebContent: Forbid access to underlying type of CSSPixels

Browse source 
Although DistinctNumeric, which is supposed to abstract the underlying
type, was used to represent CSSPixels, we have a whole bunch of places
in the layout code that assume CSSPixels::value() returns a
floating-point type. This assumption makes it difficult to replace the
underlying type in CSSPixels with a non-floating type.

To make it easier to transition CSSPixels to fixed-point math, one step
we can take is to prevent access to the underlying type using value()
and instead use explicit conversions with the to_float(), to_double(),
and to_int() methods.
This commit is contained in:
Aliaksandr Kalenik 2023-06-12 21:37:35 +03:00 • committed by Andreas Kling
parent 5a54c686a7
commit 147c3b3d97
43 changed files with 340 additions and 220 deletions
Download patch file Download diff file Expand all files Collapse all files

10
Userland/Libraries/LibWeb/Layout/FormattingContext.cpp
View file

@ -960,7 +960,7 @@ CSSPixelPoint FormattingContext::calculate_static_position(Box const& box) const
}
}
if (last_fragment) {
y = (last_fragment->offset().y() + last_fragment->height()).value();
y = last_fragment->offset().y() + last_fragment->height();
}
} else {
// Easy case: no previous sibling, we're at the top of the containing block.
@ -1179,7 +1179,7 @@ CSSPixels FormattingContext::calculate_min_content_width(Layout::Box const& box)
cache.min_content_width = context->automatic_content_width();
if (!isfinite(cache.min_content_width->value())) {
if (!isfinite(cache.min_content_width->to_double())) {
// HACK: If layout calculates a non-finite result, something went wrong. Force it to zero and log a little whine.
dbgln("FIXME: Calculated non-finite min-content width for {}", box.debug_description());
cache.min_content_width = 0;
@ -1217,7 +1217,7 @@ CSSPixels FormattingContext::calculate_max_content_width(Layout::Box const& box)
cache.max_content_width = context->automatic_content_width();
if (!isfinite(cache.max_content_width->value())) {
if (!isfinite(cache.max_content_width->to_double())) {
// HACK: If layout calculates a non-finite result, something went wrong. Force it to zero and log a little whine.
dbgln("FIXME: Calculated non-finite max-content width for {}", box.debug_description());
cache.max_content_width = 0;
@ -1271,7 +1271,7 @@ CSSPixels FormattingContext::calculate_min_content_height(Layout::Box const& box
context->run(box, LayoutMode::IntrinsicSizing, AvailableSpace(available_width, AvailableSize::make_min_content()));
auto min_content_height = context->automatic_content_height();
if (!isfinite(min_content_height.value())) {
if (!isfinite(min_content_height.to_double())) {
// HACK: If layout calculates a non-finite result, something went wrong. Force it to zero and log a little whine.
dbgln("FIXME: Calculated non-finite min-content height for {}", box.debug_description());
min_content_height = 0;
@ -1327,7 +1327,7 @@ CSSPixels FormattingContext::calculate_max_content_height(Layout::Box const& box
auto max_content_height = context->automatic_content_height();
if (!isfinite(max_content_height.value())) {
if (!isfinite(max_content_height.to_double())) {
// HACK: If layout calculates a non-finite result, something went wrong. Force it to zero and log a little whine.
dbgln("FIXME: Calculated non-finite max-content height for {}", box.debug_description());
max_content_height = 0;