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LibWeb: Implement the CSS outline property :^)

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...along with `outline-color`, `outline-style`, and `outline-width`.

This re-uses the existing border-painting code, which seems to work well
enough!

This replaces the previous code for drawing focus-outlines, with generic
outline painting for any elements that want it. Focus outlines are now
instead supported by this code in Default.css:

```css
:focus-visible {
    outline: auto;
}
```
This commit is contained in:
Sam Atkins 2023-08-02 17:24:14 +01:00 • committed by Andreas Kling
parent 5640779838
commit fe7e797483
15 changed files with 174 additions and 40 deletions
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13
Userland/Libraries/LibWeb/CSS/ComputedValues.h
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@ -107,6 +107,9 @@ public:
static Vector<Vector<String>> grid_template_areas() { return {}; }
static CSS::Time transition_delay() { return CSS::Time::make_seconds(0); }
static CSS::ObjectFit object_fit() { return CSS::ObjectFit::Fill; }
static Color outline_color() { return Color::Black; }
static CSS::OutlineStyle outline_style() { return CSS::OutlineStyle::None; }
static CSS::Length outline_width() { return CSS::Length::make_px(3); }
};
enum class BackgroundSize {
@ -324,6 +327,10 @@ public:
CSS::FontVariant font_variant() const { return m_inherited.font_variant; }
CSS::Time transition_delay() const { return m_noninherited.transition_delay; }
Color outline_color() const { return m_noninherited.outline_color; }
CSS::OutlineStyle outline_style() const { return m_noninherited.outline_style; }
CSS::Length outline_width() const { return m_noninherited.outline_width; }
ComputedValues clone_inherited_values() const
{
ComputedValues clone;
@ -434,6 +441,9 @@ protected:
Gfx::Color stop_color { InitialValues::stop_color() };
float stop_opacity { InitialValues::stop_opacity() };
CSS::Time transition_delay { InitialValues::transition_delay() };
Color outline_color { InitialValues::outline_color() };
CSS::OutlineStyle outline_style { InitialValues::outline_style() };
CSS::Length outline_width { InitialValues::outline_width() };
} m_noninherited;
};
@ -543,6 +553,9 @@ public:
void set_stop_color(Color value) { m_noninherited.stop_color = value; }
void set_stop_opacity(float value) { m_noninherited.stop_opacity = value; }
void set_text_anchor(CSS::TextAnchor value) { m_inherited.text_anchor = value; }
void set_outline_color(Color value) { m_noninherited.outline_color = value; }
void set_outline_style(CSS::OutlineStyle value) { m_noninherited.outline_style = value; }
void set_outline_width(CSS::Length value) { m_noninherited.outline_width = value; }
};
}