RGBCube/serenity
1
Fork 0
mirror of https://github.com/RGBCube/serenity synced 2025-07-26 06:37:35 +00:00
Code Issues Activity Actions

LibHTML: Get rid of the style tree

Browse source 
We now create a layout tree directly from the DOM tree.
This way we don't actually lose text nodes ^)
This commit is contained in:
Sergey Bugaev 2019-09-21 15:32:17 +03:00 • committed by Andreas Kling
parent a9ebd676e5
commit fd0aa5dd43
22 changed files with 126 additions and 261 deletions
Download patch file Download diff file Expand all files Collapse all files

22
Libraries/LibHTML/CSS/StyleProperties.cpp Normal file
View file

@ -0,0 +1,22 @@
#include <LibHTML/CSS/StyleProperties.h>
void StyleProperties::set_property(const String& name, NonnullRefPtr<StyleValue> value)
{
m_property_values.set(name, move(value));
}
Optional<NonnullRefPtr<StyleValue>> StyleProperties::property(const String& name) const
{
auto it = m_property_values.find(name);
if (it == m_property_values.end())
return {};
return it->value;
}
Length StyleProperties::length_or_fallback(const StringView& property_name, const Length& fallback) const
{
auto value = property(property_name);
if (!value.has_value())
return fallback;
return value.value()->to_length();
}

23
Libraries/LibHTML/CSS/StyleProperties.h Normal file
View file

@ -0,0 +1,23 @@
#pragma once
#include <AK/HashMap.h>
#include <AK/NonnullRefPtr.h>
#include <LibHTML/CSS/StyleValue.h>
class StyleProperties {
public:
template<typename Callback>
inline void for_each_property(Callback callback) const
{
for (auto& it : m_property_values)
callback(it.key, *it.value);
}
void set_property(const String& name, NonnullRefPtr<StyleValue> value);
Optional<NonnullRefPtr<StyleValue>> property(const String& name) const;
Length length_or_fallback(const StringView& property_name, const Length& fallback) const;
private:
HashMap<String, NonnullRefPtr<StyleValue>> m_property_values;
};

14
Libraries/LibHTML/CSS/StyleResolver.cpp
View file

@ -1,6 +1,5 @@
#include <LibHTML/CSS/StyleResolver.h>
#include <LibHTML/CSS/StyleSheet.h>
#include <LibHTML/CSS/StyledNode.h>
#include <LibHTML/DOM/Document.h>
#include <LibHTML/DOM/Element.h>
#include <LibHTML/Dump.h>
@ -53,19 +52,14 @@ NonnullRefPtrVector<StyleRule> StyleResolver::collect_matching_rules(const Eleme
return matching_rules;
}
NonnullRefPtr<StyledNode> StyleResolver::create_styled_node(const Document& document)
StyleProperties StyleResolver::resolve_style(const Element& element)
{
return StyledNode::create(document);
}
NonnullRefPtr<StyledNode> StyleResolver::create_styled_node(const Element& element)
{
auto style = StyledNode::create(element);
StyleProperties style_properties;
auto matching_rules = collect_matching_rules(element);
for (auto& rule : matching_rules) {
for (auto& declaration : rule.declarations()) {
style->set_property(declaration.property_name(), declaration.value());
style_properties.set_property(declaration.property_name(), declaration.value());
}
}
return style;
return style_properties;
}

8
Libraries/LibHTML/CSS/StyleResolver.h
View file

@ -1,14 +1,14 @@
#pragma once
#include <AK/OwnPtr.h>
#include <AK/NonnullRefPtrVector.h>
#include <AK/OwnPtr.h>
#include <LibHTML/CSS/StyleProperties.h>
class Document;
class Element;
class ParentNode;
class StyleRule;
class StyleSheet;
class StyledNode;
class StyleResolver {
public:
@ -18,12 +18,10 @@ public:
Document& document() { return m_document; }
const Document& document() const { return m_document; }
NonnullRefPtr<StyledNode> create_styled_node(const Element&);
NonnullRefPtr<StyledNode> create_styled_node(const Document&);
StyleProperties resolve_style(const Element&);
NonnullRefPtrVector<StyleRule> collect_matching_rules(const Element&) const;
private:
Document& m_document;
};

25
Libraries/LibHTML/CSS/StyledNode.cpp
View file

@ -1,25 +0,0 @@
#include <LibHTML/CSS/StyledNode.h>
StyledNode::StyledNode(const Node* node)
: m_node(node)
{
}
StyledNode::~StyledNode()
{
}
Display StyledNode::display() const
{
auto it = m_property_values.find("display");
if (it == m_property_values.end())
return Display::Inline;
auto value = it->value->to_string();
if (value == "none")
return Display::None;
if (value == "block")
return Display::Block;
if (value == "inline")
return Display::Inline;
ASSERT_NOT_REACHED();
}

78
Libraries/LibHTML/CSS/StyledNode.h
View file

@ -1,78 +0,0 @@
#pragma once
#include <AK/String.h>
#include <AK/HashMap.h>
#include <AK/NonnullRefPtr.h>
#include <AK/Optional.h>
#include <LibHTML/CSS/StyleValue.h>
#include <LibHTML/TreeNode.h>
class Node;
enum class Display {
None,
Block,
Inline,
};
class StyledNode : public TreeNode<StyledNode> {
public:
static NonnullRefPtr<StyledNode> create(const Node& node)
{
return adopt(*new StyledNode(&node));
}
~StyledNode();
const Node* node() const { return m_node; }
template<typename Callback>
inline void for_each_child(Callback callback) const
{
for (auto* node = first_child(); node; node = node->next_sibling())
callback(*node);
}
template<typename Callback>
inline void for_each_child(Callback callback)
{
for (auto* node = first_child(); node; node = node->next_sibling())
callback(*node);
}
template<typename Callback>
inline void for_each_property(Callback callback) const
{
for (auto& it : m_property_values)
callback(it.key, *it.value);
}
void set_property(const String& name, NonnullRefPtr<StyleValue> value)
{
m_property_values.set(name, move(value));
}
Optional<NonnullRefPtr<StyleValue>> property(const String& name) const
{
auto it = m_property_values.find(name);
if (it == m_property_values.end())
return {};
return it->value;
}
Display display() const;
Length length_or_fallback(const StringView& property_name, const Length& fallback)
{
auto value = property(property_name);
if (!value.has_value())
return fallback;
return value.value()->to_length();
}
protected:
explicit StyledNode(const Node*);
private:
const Node* m_node { nullptr };
HashMap<String, NonnullRefPtr<StyleValue>> m_property_values;
};