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serenity/Userland/Libraries/LibWeb/Dump.cpp
Sam Atkins 804b8c85e8 LibWeb: Implement initial CSSFontFaceRule and FontFace classes 
For now, this is the bare minimum that's needed: font-family and src.
2022-03-28 22:25:25 +02:00

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/*
* Copyright (c) 2018-2022, Andreas Kling <kling@serenityos.org>
* Copyright (c) 2021, the SerenityOS developers.
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <AK/QuickSort.h>
#include <AK/StringBuilder.h>
#include <AK/Utf8View.h>
#include <LibWeb/CSS/CSSFontFaceRule.h>
#include <LibWeb/CSS/CSSImportRule.h>
#include <LibWeb/CSS/CSSMediaRule.h>
#include <LibWeb/CSS/CSSRule.h>
#include <LibWeb/CSS/CSSStyleRule.h>
#include <LibWeb/CSS/CSSStyleSheet.h>
#include <LibWeb/CSS/CSSSupportsRule.h>
#include <LibWeb/CSS/PropertyID.h>
#include <LibWeb/DOM/Comment.h>
#include <LibWeb/DOM/Document.h>
#include <LibWeb/DOM/Element.h>
#include <LibWeb/DOM/ShadowRoot.h>
#include <LibWeb/DOM/Text.h>
#include <LibWeb/Dump.h>
#include <LibWeb/HTML/HTMLTemplateElement.h>
#include <LibWeb/Layout/BlockContainer.h>
#include <LibWeb/Layout/Node.h>
#include <LibWeb/Layout/SVGBox.h>
#include <LibWeb/Layout/TextNode.h>
#include <LibWeb/Painting/PaintableBox.h>
#include <stdio.h>
namespace Web {
static void indent(StringBuilder& builder, int levels)
{
for (int i = 0; i < levels; i++)
builder.append(" ");
}
void dump_tree(DOM::Node const& node)
{
StringBuilder builder;
dump_tree(builder, node);
dbgln("{}", builder.string_view());
}
void dump_tree(StringBuilder& builder, DOM::Node const& node)
{
static int indent = 0;
for (int i = 0; i < indent; ++i)
builder.append(" ");
if (is<DOM::Element>(node)) {
builder.appendff("<{}", verify_cast<DOM::Element>(node).local_name());
verify_cast<DOM::Element>(node).for_each_attribute([&](auto& name, auto& value) {
builder.appendff(" {}={}", name, value);
});
builder.append(">\n");
} else if (is<DOM::Text>(node)) {
builder.appendff("\"{}\"\n", verify_cast<DOM::Text>(node).data());
} else {
builder.appendff("{}\n", node.node_name());
}
++indent;
if (is<DOM::Element>(node) && verify_cast<DOM::Element>(node).shadow_root()) {
dump_tree(builder, *verify_cast<DOM::Element>(node).shadow_root());
}
if (is<DOM::ParentNode>(node)) {
if (!is<HTML::HTMLTemplateElement>(node)) {
static_cast<DOM::ParentNode const&>(node).for_each_child([&](auto& child) {
dump_tree(builder, child);
});
} else {
auto& template_element = verify_cast<HTML::HTMLTemplateElement>(node);
dump_tree(builder, template_element.content());
}
}
--indent;
}
void dump_tree(Layout::Node const& layout_node, bool show_box_model, bool show_specified_style)
{
StringBuilder builder;
dump_tree(builder, layout_node, show_box_model, show_specified_style, true);
dbgln("{}", builder.string_view());
}
void dump_tree(StringBuilder& builder, Layout::Node const& layout_node, bool show_box_model, bool show_specified_style, bool interactive)
{
static size_t indent = 0;
for (size_t i = 0; i < indent; ++i)
builder.append(" ");
FlyString tag_name;
if (layout_node.is_anonymous())
tag_name = "(anonymous)";
else if (is<DOM::Element>(layout_node.dom_node()))
tag_name = verify_cast<DOM::Element>(*layout_node.dom_node()).local_name();
else
tag_name = layout_node.dom_node()->node_name();
String identifier = "";
if (layout_node.dom_node() && is<DOM::Element>(*layout_node.dom_node())) {
auto& element = verify_cast<DOM::Element>(*layout_node.dom_node());
StringBuilder builder;
auto id = element.attribute(HTML::AttributeNames::id);
if (!id.is_empty()) {
builder.append('#');
builder.append(id);
}
for (auto& class_name : element.class_names()) {
builder.append('.');
builder.append(class_name);
}
identifier = builder.to_string();
}
char const* nonbox_color_on = "";
char const* box_color_on = "";
char const* svg_box_color_on = "";
char const* positioned_color_on = "";
char const* floating_color_on = "";
char const* inline_block_color_on = "";
char const* line_box_color_on = "";
char const* fragment_color_on = "";
char const* flex_color_on = "";
char const* color_off = "";
if (interactive) {
nonbox_color_on = "\033[33m";
box_color_on = "\033[34m";
svg_box_color_on = "\033[31m";
positioned_color_on = "\033[31;1m";
floating_color_on = "\033[32;1m";
inline_block_color_on = "\033[36;1m";
line_box_color_on = "\033[34;1m";
fragment_color_on = "\033[35;1m";
flex_color_on = "\033[34;1m";
color_off = "\033[0m";
}
if (!is<Layout::Box>(layout_node)) {
builder.appendff("{}{}{} <{}{}{}{}>",
nonbox_color_on,
layout_node.class_name().substring_view(13),
color_off,
tag_name,
nonbox_color_on,
identifier,
color_off);
if (interactive)
builder.appendff(" @{:p}", &layout_node);
builder.append("\n");
} else {
auto& box = verify_cast<Layout::Box>(layout_node);
StringView color_on = is<Layout::SVGBox>(box) ? svg_box_color_on : box_color_on;
builder.appendff("{}{}{} <{}{}{}{}> ",
color_on,
box.class_name().substring_view(13),
color_off,
color_on,
tag_name,
color_off,
identifier.characters());
if (interactive)
builder.appendff("@{:p} ", &layout_node);
if (auto const* paint_box = box.paint_box()) {
builder.appendff("at ({},{}) content-size {}x{}",
paint_box->absolute_x(),
paint_box->absolute_y(),
paint_box->content_width(),
paint_box->content_height());
}
if (box.is_positioned())
builder.appendff(" {}positioned{}", positioned_color_on, color_off);
if (box.is_floating())
builder.appendff(" {}floating{}", floating_color_on, color_off);
if (box.is_inline_block())
builder.appendff(" {}inline-block{}", inline_block_color_on, color_off);
if (box.computed_values().display().is_flex_inside()) {
StringView direction;
switch (box.computed_values().flex_direction()) {
case CSS::FlexDirection::Column:
direction = "column"sv;
break;
case CSS::FlexDirection::ColumnReverse:
direction = "column-reverse"sv;
break;
case CSS::FlexDirection::Row:
direction = "row"sv;
break;
case CSS::FlexDirection::RowReverse:
direction = "row-reverse"sv;
break;
}
builder.appendff(" {}flex-container({}){}", flex_color_on, direction, color_off);
}
if (box.is_flex_item())
builder.appendff(" {}flex-item{}", flex_color_on, color_off);
if (show_box_model) {
// Dump the horizontal box properties
builder.appendff(" [{}+{}+{} {} {}+{}+{}]",
box.box_model().margin.left,
box.box_model().border.left,
box.box_model().padding.left,
box.paint_box() ? box.paint_box()->content_width() : 0,
box.box_model().padding.right,
box.box_model().border.right,
box.box_model().margin.right);
// And the vertical box properties
builder.appendff(" [{}+{}+{} {} {}+{}+{}]",
box.box_model().margin.top,
box.box_model().border.top,
box.box_model().padding.top,
box.paint_box() ? box.paint_box()->content_height() : 0,
box.box_model().padding.bottom,
box.box_model().border.bottom,
box.box_model().margin.bottom);
}
builder.appendff(" children: {}", box.children_are_inline() ? "inline" : "not-inline");
builder.append("\n");
}
if (is<Layout::BlockContainer>(layout_node) && static_cast<Layout::BlockContainer const&>(layout_node).children_are_inline()) {
auto& block = static_cast<Layout::BlockContainer const&>(layout_node);
for (size_t line_box_index = 0; block.paint_box() && line_box_index < block.paint_box()->line_boxes().size(); ++line_box_index) {
auto& line_box = block.paint_box()->line_boxes()[line_box_index];
for (size_t i = 0; i < indent; ++i)
builder.append(" ");
builder.appendff(" {}line {}{} width: {}, height: {}, bottom: {}, baseline: {}\n",
line_box_color_on,
line_box_index,
color_off,
line_box.width(),
line_box.height(),
line_box.bottom(),
line_box.baseline());
for (size_t fragment_index = 0; fragment_index < line_box.fragments().size(); ++fragment_index) {
auto& fragment = line_box.fragments()[fragment_index];
for (size_t i = 0; i < indent; ++i)
builder.append(" ");
builder.appendff(" {}frag {}{} from {} ",
fragment_color_on,
fragment_index,
color_off,
fragment.layout_node().class_name());
if (interactive)
builder.appendff("@{:p}, ", &fragment.layout_node());
builder.appendff("start: {}, length: {}, rect: {}\n",
fragment.start(),
fragment.length(),
fragment.absolute_rect().to_string());
if (is<Layout::TextNode>(fragment.layout_node())) {
for (size_t i = 0; i < indent; ++i)
builder.append(" ");
auto& layout_text = static_cast<Layout::TextNode const&>(fragment.layout_node());
auto fragment_text = layout_text.text_for_rendering().substring(fragment.start(), fragment.length());
builder.appendff(" \"{}\"\n", fragment_text);
}
}
}
}
if (show_specified_style && layout_node.dom_node() && layout_node.dom_node()->is_element() && verify_cast<DOM::Element>(layout_node.dom_node())->computed_css_values()) {
struct NameAndValue {
String name;
String value;
};
Vector<NameAndValue> properties;
verify_cast<DOM::Element>(*layout_node.dom_node()).computed_css_values()->for_each_property([&](auto property_id, auto& value) {
properties.append({ CSS::string_from_property_id(property_id), value.to_string() });
});
quick_sort(properties, [](auto& a, auto& b) { return a.name < b.name; });
for (auto& property : properties) {
for (size_t i = 0; i < indent; ++i)
builder.append(" ");
builder.appendff(" ({}: {})\n", property.name, property.value);
}
}
++indent;
layout_node.for_each_child([&](auto& child) {
dump_tree(builder, child, show_box_model, show_specified_style, interactive);
});
--indent;
}
void dump_selector(CSS::Selector const& selector)
{
StringBuilder builder;
dump_selector(builder, selector);
dbgln("{}", builder.string_view());
}
void dump_selector(StringBuilder& builder, CSS::Selector const& selector)
{
builder.append(" CSS::Selector:\n");
for (auto& relative_selector : selector.compound_selectors()) {
builder.append(" ");
char const* relation_description = "";
switch (relative_selector.combinator) {
case CSS::Selector::Combinator::None:
relation_description = "None";
break;
case CSS::Selector::Combinator::ImmediateChild:
relation_description = "ImmediateChild";
break;
case CSS::Selector::Combinator::Descendant:
relation_description = "Descendant";
break;
case CSS::Selector::Combinator::NextSibling:
relation_description = "AdjacentSibling";
break;
case CSS::Selector::Combinator::SubsequentSibling:
relation_description = "GeneralSibling";
break;
case CSS::Selector::Combinator::Column:
relation_description = "Column";
break;
}
if (*relation_description)
builder.appendff("{{{}}} ", relation_description);
for (size_t i = 0; i < relative_selector.simple_selectors.size(); ++i) {
auto& simple_selector = relative_selector.simple_selectors[i];
char const* type_description = "Unknown";
switch (simple_selector.type) {
case CSS::Selector::SimpleSelector::Type::Universal:
type_description = "Universal";
break;
case CSS::Selector::SimpleSelector::Type::Id:
type_description = "Id";
break;
case CSS::Selector::SimpleSelector::Type::Class:
type_description = "Class";
break;
case CSS::Selector::SimpleSelector::Type::TagName:
type_description = "TagName";
break;
case CSS::Selector::SimpleSelector::Type::Attribute:
type_description = "Attribute";
break;
case CSS::Selector::SimpleSelector::Type::PseudoClass:
type_description = "PseudoClass";
break;
case CSS::Selector::SimpleSelector::Type::PseudoElement:
type_description = "PseudoElement";
break;
}
builder.appendff("{}:", type_description);
// FIXME: This is goofy
if (simple_selector.value.has<FlyString>())
builder.append(simple_selector.name());
if (simple_selector.type == CSS::Selector::SimpleSelector::Type::PseudoClass) {
auto const& pseudo_class = simple_selector.pseudo_class();
char const* pseudo_class_description = "";
switch (pseudo_class.type) {
case CSS::Selector::SimpleSelector::PseudoClass::Type::Link:
pseudo_class_description = "Link";
break;
case CSS::Selector::SimpleSelector::PseudoClass::Type::Visited:
pseudo_class_description = "Visited";
break;
case CSS::Selector::SimpleSelector::PseudoClass::Type::Active:
pseudo_class_description = "Active";
break;
case CSS::Selector::SimpleSelector::PseudoClass::Type::Root:
pseudo_class_description = "Root";
break;
case CSS::Selector::SimpleSelector::PseudoClass::Type::FirstOfType:
pseudo_class_description = "FirstOfType";
break;
case CSS::Selector::SimpleSelector::PseudoClass::Type::LastOfType:
pseudo_class_description = "LastOfType";
break;
case CSS::Selector::SimpleSelector::PseudoClass::Type::OnlyOfType:
pseudo_class_description = "OnlyOfType";
break;
case CSS::Selector::SimpleSelector::PseudoClass::Type::NthOfType:
pseudo_class_description = "NthOfType";
break;
case CSS::Selector::SimpleSelector::PseudoClass::Type::NthLastOfType:
pseudo_class_description = "NthLastOfType";
break;
case CSS::Selector::SimpleSelector::PseudoClass::Type::NthChild:
pseudo_class_description = "NthChild";
break;
case CSS::Selector::SimpleSelector::PseudoClass::Type::NthLastChild:
pseudo_class_description = "NthLastChild";
break;
case CSS::Selector::SimpleSelector::PseudoClass::Type::Focus:
pseudo_class_description = "Focus";
break;
case CSS::Selector::SimpleSelector::PseudoClass::Type::FocusWithin:
pseudo_class_description = "FocusWithin";
break;
case CSS::Selector::SimpleSelector::PseudoClass::Type::Empty:
pseudo_class_description = "Empty";
break;
case CSS::Selector::SimpleSelector::PseudoClass::Type::Hover:
pseudo_class_description = "Hover";
break;
case CSS::Selector::SimpleSelector::PseudoClass::Type::LastChild:
pseudo_class_description = "LastChild";
break;
case CSS::Selector::SimpleSelector::PseudoClass::Type::FirstChild:
pseudo_class_description = "FirstChild";
break;
case CSS::Selector::SimpleSelector::PseudoClass::Type::OnlyChild:
pseudo_class_description = "OnlyChild";
break;
case CSS::Selector::SimpleSelector::PseudoClass::Type::Disabled:
pseudo_class_description = "Disabled";
break;
case CSS::Selector::SimpleSelector::PseudoClass::Type::Enabled:
pseudo_class_description = "Enabled";
break;
case CSS::Selector::SimpleSelector::PseudoClass::Type::Checked:
pseudo_class_description = "Checked";
break;
case CSS::Selector::SimpleSelector::PseudoClass::Type::Not:
pseudo_class_description = "Not";
break;
case CSS::Selector::SimpleSelector::PseudoClass::Type::Is:
pseudo_class_description = "Is";
break;
case CSS::Selector::SimpleSelector::PseudoClass::Type::Where:
pseudo_class_description = "Where";
break;
case CSS::Selector::SimpleSelector::PseudoClass::Type::Lang:
pseudo_class_description = "Lang";
break;
}
builder.appendff(" pseudo_class={}", pseudo_class_description);
if (pseudo_class.type == CSS::Selector::SimpleSelector::PseudoClass::Type::Lang) {
builder.append('(');
builder.join(',', pseudo_class.languages);
builder.append(')');
} else if (pseudo_class.type == CSS::Selector::SimpleSelector::PseudoClass::Type::Not
|| pseudo_class.type == CSS::Selector::SimpleSelector::PseudoClass::Type::Is
|| pseudo_class.type == CSS::Selector::SimpleSelector::PseudoClass::Type::Where) {
builder.append("([");
for (auto& selector : pseudo_class.argument_selector_list)
dump_selector(builder, selector);
builder.append("])");
} else if ((pseudo_class.type == CSS::Selector::SimpleSelector::PseudoClass::Type::NthChild)
|| (pseudo_class.type == CSS::Selector::SimpleSelector::PseudoClass::Type::NthLastChild)
|| (pseudo_class.type == CSS::Selector::SimpleSelector::PseudoClass::Type::NthOfType)
|| (pseudo_class.type == CSS::Selector::SimpleSelector::PseudoClass::Type::NthLastOfType)) {
builder.appendff("(step={}, offset={}", pseudo_class.nth_child_pattern.step_size, pseudo_class.nth_child_pattern.offset);
if (!pseudo_class.argument_selector_list.is_empty()) {
builder.append(", selectors=[");
for (auto const& child_selector : pseudo_class.argument_selector_list)
dump_selector(builder, child_selector);
builder.append("]");
}
builder.append(")");
}
}
if (simple_selector.type == CSS::Selector::SimpleSelector::Type::PseudoElement) {
char const* pseudo_element_description = "";
switch (simple_selector.pseudo_element()) {
case CSS::Selector::PseudoElement::Before:
pseudo_element_description = "before";
break;
case CSS::Selector::PseudoElement::After:
pseudo_element_description = "after";
break;
case CSS::Selector::PseudoElement::FirstLine:
pseudo_element_description = "first-line";
break;
case CSS::Selector::PseudoElement::FirstLetter:
pseudo_element_description = "first-letter";
break;
case CSS::Selector::PseudoElement::Marker:
pseudo_element_description = "marker";
break;
}
builder.appendff(" pseudo_element={}", pseudo_element_description);
}
if (simple_selector.type == CSS::Selector::SimpleSelector::Type::Attribute) {
auto const& attribute = simple_selector.attribute();
char const* attribute_match_type_description = "";
switch (attribute.match_type) {
case CSS::Selector::SimpleSelector::Attribute::MatchType::HasAttribute:
attribute_match_type_description = "HasAttribute";
break;
case CSS::Selector::SimpleSelector::Attribute::MatchType::ExactValueMatch:
attribute_match_type_description = "ExactValueMatch";
break;
case CSS::Selector::SimpleSelector::Attribute::MatchType::ContainsWord:
attribute_match_type_description = "ContainsWord";
break;
case CSS::Selector::SimpleSelector::Attribute::MatchType::ContainsString:
attribute_match_type_description = "ContainsString";
break;
case CSS::Selector::SimpleSelector::Attribute::MatchType::StartsWithSegment:
attribute_match_type_description = "StartsWithSegment";
break;
case CSS::Selector::SimpleSelector::Attribute::MatchType::StartsWithString:
attribute_match_type_description = "StartsWithString";
break;
case CSS::Selector::SimpleSelector::Attribute::MatchType::EndsWithString:
attribute_match_type_description = "EndsWithString";
break;
}
builder.appendff(" [{}, name='{}', value='{}']", attribute_match_type_description, attribute.name, attribute.value);
}
if (i != relative_selector.simple_selectors.size() - 1)
builder.append(", ");
}
builder.append("\n");
}
}
void dump_rule(CSS::CSSRule const& rule)
{
StringBuilder builder;
dump_rule(builder, rule);
dbgln("{}", builder.string_view());
}
void dump_rule(StringBuilder& builder, CSS::CSSRule const& rule, int indent_levels)
{
indent(builder, indent_levels);
builder.appendff("{}:\n", rule.class_name());
switch (rule.type()) {
case CSS::CSSRule::Type::FontFace:
dump_font_face_rule(builder, verify_cast<CSS::CSSFontFaceRule const>(rule), indent_levels);
break;
case CSS::CSSRule::Type::Import:
dump_import_rule(builder, verify_cast<CSS::CSSImportRule const>(rule), indent_levels);
break;
case CSS::CSSRule::Type::Media:
dump_media_rule(builder, verify_cast<CSS::CSSMediaRule const>(rule), indent_levels);
break;
case CSS::CSSRule::Type::Style:
dump_style_rule(builder, verify_cast<CSS::CSSStyleRule const>(rule), indent_levels);
break;
case CSS::CSSRule::Type::Supports:
dump_supports_rule(builder, verify_cast<CSS::CSSSupportsRule const>(rule), indent_levels);
break;
case CSS::CSSRule::Type::__Count:
VERIFY_NOT_REACHED();
}
}
void dump_font_face_rule(StringBuilder& builder, CSS::CSSFontFaceRule const& rule, int indent_levels)
{
auto& font_face = rule.font_face();
indent(builder, indent_levels + 1);
builder.appendff("font-family: {}\n", font_face.font_family());
indent(builder, indent_levels + 1);
builder.append("sources:\n");
for (auto const& source : font_face.sources()) {
indent(builder, indent_levels + 2);
builder.appendff("{}\n", source.url);
}
}
void dump_import_rule(StringBuilder& builder, CSS::CSSImportRule const& rule, int indent_levels)
{
indent(builder, indent_levels);
builder.appendff(" Document URL: {}\n", rule.url());
}
void dump_media_rule(StringBuilder& builder, CSS::CSSMediaRule const& media, int indent_levels)
{
indent(builder, indent_levels);
builder.appendff(" Media: {}\n Rules ({}):\n", media.condition_text(), media.css_rules().length());
for (auto& rule : media.css_rules()) {
dump_rule(builder, rule, indent_levels + 1);
}
}
void dump_supports_rule(StringBuilder& builder, CSS::CSSSupportsRule const& supports, int indent_levels)
{
indent(builder, indent_levels);
builder.appendff(" Supports: {}\n Rules ({}):\n", supports.condition_text(), supports.css_rules().length());
for (auto& rule : supports.css_rules()) {
dump_rule(builder, rule, indent_levels + 1);
}
}
void dump_style_rule(StringBuilder& builder, CSS::CSSStyleRule const& rule, int indent_levels)
{
for (auto& selector : rule.selectors()) {
dump_selector(builder, selector);
}
indent(builder, indent_levels);
builder.append(" Declarations:\n");
auto& style_declaration = verify_cast<CSS::PropertyOwningCSSStyleDeclaration>(rule.declaration());
for (auto& property : style_declaration.properties()) {
indent(builder, indent_levels);
builder.appendff(" {}: '{}'", CSS::string_from_property_id(property.property_id), property.value->to_string());
if (property.important == CSS::Important::Yes)
builder.append(" \033[31;1m!important\033[0m");
builder.append('\n');
}
for (auto& property : style_declaration.custom_properties()) {
indent(builder, indent_levels);
builder.appendff(" {}: '{}'", property.key, property.value.value->to_string());
if (property.value.important == CSS::Important::Yes)
builder.append(" \033[31;1m!important\033[0m");
builder.append('\n');
}
}
void dump_sheet(CSS::StyleSheet const& sheet)
{
StringBuilder builder;
dump_sheet(builder, sheet);
dbgln("{}", builder.string_view());
}
void dump_sheet(StringBuilder& builder, CSS::StyleSheet const& sheet)
{
auto& css_stylesheet = verify_cast<CSS::CSSStyleSheet>(sheet);
builder.appendff("CSSStyleSheet{{{}}}: {} rule(s)\n", &sheet, css_stylesheet.rules().length());
for (auto& rule : css_stylesheet.rules()) {
dump_rule(builder, rule);
}
}
}
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