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LibWeb: Start adding support for the <iframe> element! :^)

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This patch introduces a bunch of things:

- Subframes (Web::Frame::create_subframe())
- HTMLIFrameElement (loads and owns the hosted Web::Frame)
- LayoutFrame (layout and rendering of the hosted frame)

There's still a huge number of things missing, like scrolling, overflow
handling, event handling, scripting, etc. But we can make a little
iframe in a document and it actually renders another document there.
I think that's pretty cool! :^)
This commit is contained in:
Andreas Kling 2020-06-05 23:36:02 +02:00
parent f2aa21ebc4
commit 422bbe98a5
13 changed files with 321 additions and 0 deletions
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2
Libraries/LibWeb/Layout/LayoutNode.h
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@ -60,6 +60,7 @@ public:
bool is_anonymous() const { return !m_node; }
const Node* node() const { return m_node; }
Node* node() { return const_cast<Node*>(m_node); }
Document& document();
const Document& document() const;
@ -87,6 +88,7 @@ public:
virtual bool is_block() const { return false; }
virtual bool is_replaced() const { return false; }
virtual bool is_widget() const { return false; }
virtual bool is_frame() const { return false; }
virtual bool is_image() const { return false; }
virtual bool is_canvas() const { return false; }
virtual bool is_box() const { return false; }