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LibWeb: Ignore setting zero, negative, or non-finite CRC2D.lineWidths

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This is part of the spec but was missed. This fixes a crash on:
https://www.kevs3d.co.uk/dev/phoria/test1d.html
This commit is contained in:
MacDue 2024-05-06 13:34:19 +01:00 • committed by Andreas Kling
commit 23d8d217ed
Notes: sideshowbarker 2024-07-17 17:49:11 +09:00
1 changed files with 14 additions and 2 deletions
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16
Userland/Libraries/LibWeb/HTML/Canvas/CanvasPathDrawingStyles.h
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@ -16,8 +16,20 @@ class CanvasPathDrawingStyles {
public:
~CanvasPathDrawingStyles() = default;
void set_line_width(float line_width) { my_drawing_state().line_width = line_width; }
float line_width() const { return my_drawing_state().line_width; }
// https://html.spec.whatwg.org/multipage/canvas.html#dom-context-2d-linewidth
void set_line_width(float line_width)
{
// On setting, zero, negative, infinite, and NaN values must be ignored, leaving the value unchanged;
if (line_width <= 0 || !isfinite(line_width))
return;
// other values must change the current value to the new value.
my_drawing_state().line_width = line_width;
}
float line_width() const
{
// On getting, it must return the current value.
return my_drawing_state().line_width;
}
protected:
CanvasPathDrawingStyles() = default;