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LibWeb: Add a way to resolve calc() values without a layout node

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Instead of a layout node, you can pass a new Length::ResolutionContext
struct which contains everything needed to resolve calc() lengths.
This commit is contained in:
Andreas Kling 2023-06-02 12:39:39 +02:00
parent 2ade229f27
commit df8a96ee00
5 changed files with 107 additions and 75 deletions
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11
Userland/Libraries/LibWeb/CSS/Length.h
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@ -9,6 +9,7 @@
#include <AK/String.h>
#include <LibGfx/Forward.h>
#include <LibGfx/Rect.h>
#include <LibWeb/Forward.h>
#include <LibWeb/PixelUnits.h>
@ -156,6 +157,16 @@ public:
Type type() const { return m_type; }
double raw_value() const { return m_value; }
struct ResolutionContext {
[[nodiscard]] static Length::ResolutionContext for_layout_node(Layout::Node const&);
CSSPixelRect viewport_rect;
FontMetrics font_metrics;
FontMetrics root_font_metrics;
};
[[nodiscard]] CSSPixels to_px(ResolutionContext const&) const;
CSSPixels to_px(Layout::Node const&) const;
ALWAYS_INLINE CSSPixels to_px(CSSPixelRect const& viewport_rect, FontMetrics const& font_metrics, FontMetrics const& root_font_metrics) const