LibWeb: Implement CSSRule and CSSStyleDeclaration serialization

There are a handful of FIXME's here, but this seems generally good.
Note that CSS *values* don't get serialized in a spec-compliant way
since we currently rely on StyleValue::to_string() which is ad-hoc.

1 files changed, 7 insertions, 0 deletions

diff --git a/Userland/Libraries/LibWeb/CSS/CSSStyleDeclaration.h b/Userland/Libraries/LibWeb/CSS/CSSStyleDeclaration.h
index 37a32c9f6a..92db88971e 100644
--- a/Userland/Libraries/LibWeb/CSS/CSSStyleDeclaration.h
+++ b/Userland/Libraries/LibWeb/CSS/CSSStyleDeclaration.h
@@ -38,6 +38,11 @@ public:
 
     String get_property_value(StringView property) const;
 
+    String css_text() const;
+    void set_css_text(StringView);
+
+    virtual String serialized() const = 0;
+
 protected:
     CSSStyleDeclaration() { }
 };
@@ -63,6 +68,8 @@ public:
     Optional<StyleProperty> custom_property(const String& custom_property_name) const { return m_custom_properties.get(custom_property_name); }
     size_t custom_property_count() const { return m_custom_properties.size(); }
 
+    virtual String serialized() const final override;
+
 protected:
     explicit PropertyOwningCSSStyleDeclaration(Vector<StyleProperty>, HashMap<String, StyleProperty>);