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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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57
Libraries/LibWeb/DOM/HTMLIFrameElement.h Normal file
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/*
* Copyright (c) 2020, Andreas Kling <kling@serenityos.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#pragma once
#include <LibWeb/DOM/HTMLElement.h>
namespace Web {
class HTMLIFrameElement : public HTMLElement {
public:
HTMLIFrameElement(Document&, const FlyString& tag_name);
virtual ~HTMLIFrameElement() override;
virtual RefPtr<LayoutNode> create_layout_node(const StyleProperties* parent_style) const override;
Frame* hosted_frame() { return m_hosted_frame; }
const Frame* hosted_frame() const { return m_hosted_frame; }
virtual void parse_attribute(const FlyString& name, const String& value) override;
private:
void load_src(const String&);
RefPtr<Frame> m_hosted_frame;
};
template<>
inline bool is<HTMLIFrameElement>(const Node& node)
{
return is<Element>(node) && to<Element>(node).tag_name().equals_ignoring_case("iframe");
}
}