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LibWeb: Add serialization code for CSS{Media,Supports}Rule
The `CSSMediaRule::serialized()` code is to spec. The `CSSSupportsRule::serialized()` code has no spec right now, but I'm fairly confident it will be almost identical to media's, so I copied that for now.
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6 changed files with 53 additions and 8 deletions
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@ -30,12 +30,6 @@ void CSSGroupingRule::delete_rule(size_t)
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TODO();
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}
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// https://drafts.csswg.org/cssom/#serialize-a-css-rule
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String CSSGroupingRule::serialized() const
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{
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TODO();
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}
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void CSSGroupingRule::for_each_effective_style_rule(Function<void(CSSStyleRule const&)> const& callback) const
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{
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m_rules->for_each_effective_style_rule(callback);
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@ -29,8 +29,6 @@ public:
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virtual void for_each_effective_style_rule(Function<void(CSSStyleRule const&)> const& callback) const;
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virtual bool for_first_not_loaded_import_rule(Function<void(CSSImportRule&)> const& callback);
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virtual String serialized() const;
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protected:
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explicit CSSGroupingRule(NonnullRefPtrVector<CSSRule>&&);
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@ -28,4 +28,30 @@ void CSSMediaRule::set_condition_text(String text)
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m_media->set_media_text(text);
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}
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// https://www.w3.org/TR/cssom-1/#serialize-a-css-rule
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String CSSMediaRule::serialized() const
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{
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// The result of concatenating the following:
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StringBuilder builder;
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// 1. The string "@media", followed by a single SPACE (U+0020).
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builder.append("@media ");
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// 2. The result of performing serialize a media query list on rule’s media query list.
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builder.append(condition_text());
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// 3. A single SPACE (U+0020), followed by the string "{", i.e., LEFT CURLY BRACKET (U+007B), followed by a newline.
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builder.append(" {\n");
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// 4. The result of performing serialize a CSS rule on each rule in the rule’s cssRules list, separated by a newline and indented by two spaces.
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for (size_t i = 0; i < css_rules().length(); i++) {
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auto rule = css_rules().item(i);
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if (i != 0)
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builder.append("\n");
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builder.append(" ");
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builder.append(rule->css_text());
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}
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// 5. A newline, followed by the string "}", i.e., RIGHT CURLY BRACKET (U+007D)
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builder.append("\n}");
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return builder.to_string();
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}
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}
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@ -39,6 +39,8 @@ public:
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private:
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explicit CSSMediaRule(NonnullRefPtr<MediaList>&&, NonnullRefPtrVector<CSSRule>&&);
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virtual String serialized() const override;
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NonnullRefPtr<MediaList> m_media;
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};
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@ -31,4 +31,27 @@ void CSSSupportsRule::set_condition_text(String text)
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m_supports = new_supports.release_nonnull();
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}
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// https://www.w3.org/TR/cssom-1/#serialize-a-css-rule
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String CSSSupportsRule::serialized() const
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{
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// Note: The spec doesn't cover this yet, so I'm roughly following the spec for the @media rule.
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// It should be pretty close!
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StringBuilder builder;
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builder.append("@supports ");
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builder.append(condition_text());
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builder.append(" {\n");
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for (size_t i = 0; i < css_rules().length(); i++) {
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auto rule = css_rules().item(i);
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if (i != 0)
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builder.append("\n");
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builder.append(" ");
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builder.append(rule->css_text());
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}
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builder.append("\n}");
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return builder.to_string();
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}
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}
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@ -38,6 +38,8 @@ public:
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private:
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explicit CSSSupportsRule(NonnullRefPtr<Supports>&&, NonnullRefPtrVector<CSSRule>&&);
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virtual String serialized() const override;
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NonnullRefPtr<Supports> m_supports;
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};
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