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LibWeb: Add basic <object> element support

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This patch implements a simple <object> element with fallback content.
If the URL from the data attribute fails to load (including 404),
we render the DOM tree inside the <object> as fallback content.

This works by generating a different layout tree for the <object>
depending on the state and success of the data load. Since we cannot
currently do incremental layout tree updates, we have to force a
complete layout tree rebuild when the resource load finishes/fails.
This commit is contained in:
Andreas Kling 2020-06-13 22:24:49 +02:00
parent 95d70addd8
commit 3cc0c477db
5 changed files with 146 additions and 1 deletions
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3
Libraries/LibWeb/DOM/Element.h
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@ -79,9 +79,10 @@ public:
String inner_html() const;
void set_inner_html(StringView);
private:
protected:
RefPtr<LayoutNode> create_layout_node(const StyleProperties* parent_style) const override;
private:
Attribute* find_attribute(const FlyString& name);
const Attribute* find_attribute(const FlyString& name) const;