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68b04d5c78
Getting the innerHTML property will recurse through the subtree inside the element and serialize it into a string as it goes. Setting it will parse the set value as an HTML fragment. It will then remove all current children of the element and replace them with all the children inside the parsed fragment. Setting element.innerHTML will currently force a complete rebuild of the document's layout tree. This is pretty neat! :^)
114 lines
3.7 KiB
C++
114 lines
3.7 KiB
C++
/*
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* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#pragma once
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#include <AK/FlyString.h>
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#include <AK/String.h>
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#include <LibWeb/DOM/ParentNode.h>
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#include <LibWeb/Layout/LayoutNode.h>
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namespace Web {
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class LayoutNodeWithStyle;
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class Attribute {
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public:
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Attribute(const FlyString& name, const String& value)
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: m_name(name)
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, m_value(value)
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{
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}
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const FlyString& name() const { return m_name; }
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const String& value() const { return m_value; }
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void set_value(const String& value) { m_value = value; }
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private:
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FlyString m_name;
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String m_value;
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};
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class Element : public ParentNode {
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public:
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using WrapperType = Bindings::ElementWrapper;
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Element(Document&, const FlyString& tag_name);
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virtual ~Element() override;
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virtual FlyString tag_name() const final { return m_tag_name; }
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bool has_attribute(const FlyString& name) const { return !attribute(name).is_null(); }
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String attribute(const FlyString& name) const;
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void set_attribute(const FlyString& name, const String& value);
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void set_attributes(Vector<Attribute>&&);
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template<typename Callback>
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void for_each_attribute(Callback callback) const
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{
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for (auto& attribute : m_attributes)
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callback(attribute.name(), attribute.value());
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}
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bool has_class(const StringView&) const;
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virtual void apply_presentational_hints(StyleProperties&) const {}
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virtual void parse_attribute(const FlyString& name, const String& value);
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void recompute_style();
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LayoutNodeWithStyle* layout_node() { return static_cast<LayoutNodeWithStyle*>(Node::layout_node()); }
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const LayoutNodeWithStyle* layout_node() const { return static_cast<const LayoutNodeWithStyle*>(Node::layout_node()); }
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String name() const { return attribute("name"); }
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const StyleProperties* resolved_style() const { return m_resolved_style.ptr(); }
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NonnullRefPtr<StyleProperties> computed_style();
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String inner_html() const;
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void set_inner_html(StringView);
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private:
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RefPtr<LayoutNode> create_layout_node(const StyleProperties* parent_style) const override;
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Attribute* find_attribute(const FlyString& name);
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const Attribute* find_attribute(const FlyString& name) const;
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FlyString m_tag_name;
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Vector<Attribute> m_attributes;
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RefPtr<StyleProperties> m_resolved_style;
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};
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template<>
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inline bool is<Element>(const Node& node)
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{
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return node.is_element();
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}
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}
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