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Diffstat (limited to 'Userland/Libraries/LibWeb/Dump.cpp')
| -rw-r--r-- | Userland/Libraries/LibWeb/Dump.cpp | 403 |
1 files changed, 403 insertions, 0 deletions
diff --git a/Userland/Libraries/LibWeb/Dump.cpp b/Userland/Libraries/LibWeb/Dump.cpp new file mode 100644 index 0000000000..f8f83ebc87 --- /dev/null +++ b/Userland/Libraries/LibWeb/Dump.cpp @@ -0,0 +1,403 @@ +/* + * Copyright (c) 2018-2020, 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. + */ + +#include <AK/QuickSort.h> +#include <AK/StringBuilder.h> +#include <AK/Utf8View.h> +#include <LibWeb/CSS/PropertyID.h> +#include <LibWeb/CSS/StyleSheet.h> +#include <LibWeb/DOM/Comment.h> +#include <LibWeb/DOM/Document.h> +#include <LibWeb/DOM/DocumentFragment.h> +#include <LibWeb/DOM/DocumentType.h> +#include <LibWeb/DOM/Element.h> +#include <LibWeb/DOM/Text.h> +#include <LibWeb/Dump.h> +#include <LibWeb/HTML/HTMLTemplateElement.h> +#include <LibWeb/Layout/BlockBox.h> +#include <LibWeb/Layout/Node.h> +#include <LibWeb/Layout/TextNode.h> +#include <stdio.h> + +namespace Web { + +void dump_tree(const DOM::Node& node) +{ + static int indent = 0; + for (int i = 0; i < indent; ++i) + dbgprintf(" "); + if (is<DOM::Document>(node)) { + dbgprintf("*Document*\n"); + } else if (is<DOM::Element>(node)) { + dbgprintf("<%s", downcast<DOM::Element>(node).local_name().characters()); + downcast<DOM::Element>(node).for_each_attribute([](auto& name, auto& value) { + dbgprintf(" %s=%s", name.characters(), value.characters()); + }); + dbgprintf(">\n"); + } else if (is<DOM::Text>(node)) { + dbgprintf("\"%s\"\n", downcast<DOM::Text>(node).data().characters()); + } else if (is<DOM::DocumentType>(node)) { + dbgprintf("<!DOCTYPE html>\n"); + } else if (is<DOM::Comment>(node)) { + dbgprintf("<!--%s-->\n", downcast<DOM::Comment>(node).data().characters()); + } else if (is<DOM::DocumentFragment>(node)) { + dbgprintf("#document-fragment\n"); + } + ++indent; + if (is<DOM::ParentNode>(node)) { + if (!is<HTML::HTMLTemplateElement>(node)) { + static_cast<const DOM::ParentNode&>(node).for_each_child([](auto& child) { + dump_tree(child); + }); + } else { + auto& template_element = downcast<HTML::HTMLTemplateElement>(node); + dump_tree(template_element.content()); + } + } + --indent; +} + +void dump_tree(const Layout::Node& layout_node, bool show_box_model, bool show_specified_style) +{ + StringBuilder builder; + dump_tree(builder, layout_node, show_box_model, show_specified_style, true); + dbgprintf("%s", builder.to_string().characters()); +} + +void dump_tree(StringBuilder& builder, const Layout::Node& 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::Text>(layout_node.dom_node())) + tag_name = "#text"; + else if (is<DOM::Document>(layout_node.dom_node())) + tag_name = "#document"; + else if (is<DOM::Element>(layout_node.dom_node())) + tag_name = downcast<DOM::Element>(*layout_node.dom_node()).local_name(); + else + tag_name = "???"; + + String identifier = ""; + if (layout_node.dom_node() && is<DOM::Element>(*layout_node.dom_node())) { + auto& element = downcast<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(); + } + + const char* nonbox_color_on = ""; + const char* box_color_on = ""; + const char* positioned_color_on = ""; + const char* floating_color_on = ""; + const char* inline_block_color_on = ""; + const char* line_box_color_on = ""; + const char* fragment_color_on = ""; + const char* color_off = ""; + + if (interactive) { + nonbox_color_on = "\033[33m"; + box_color_on = "\033[34m"; + 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"; + 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 = downcast<Layout::Box>(layout_node); + builder.appendff("{}{}{} <{}{}{}{}> ", + box_color_on, + box.class_name().substring_view(13), + color_off, + box_color_on, + tag_name, + color_off, + identifier.characters()); + + if (interactive) + builder.appendff("@{:p} ", &layout_node); + + builder.appendff("at ({},{}) size {}x{}", + (int)box.absolute_x(), + (int)box.absolute_y(), + (int)box.width(), + (int)box.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 (show_box_model) { + // Dump the horizontal box properties + builder.appendf(" [%g+%g+%g %g %g+%g+%g]", + box.box_model().margin.left, + box.box_model().border.left, + box.box_model().padding.left, + box.width(), + box.box_model().padding.right, + box.box_model().border.right, + box.box_model().margin.right); + + // And the vertical box properties + builder.appendf(" [%g+%g+%g %g %g+%g+%g]", + box.box_model().margin.top, + box.box_model().border.top, + box.box_model().padding.top, + box.height(), + box.box_model().padding.bottom, + box.box_model().border.bottom, + box.box_model().margin.bottom); + } + + builder.append("\n"); + } + + if (is<Layout::BlockBox>(layout_node) && static_cast<const Layout::BlockBox&>(layout_node).children_are_inline()) { + auto& block = static_cast<const Layout::BlockBox&>(layout_node); + for (size_t line_box_index = 0; line_box_index < block.line_boxes().size(); ++line_box_index) { + auto& line_box = block.line_boxes()[line_box_index]; + for (size_t i = 0; i < indent; ++i) + builder.append(" "); + builder.appendff(" {}line {}{} width: {}\n", + line_box_color_on, + line_box_index, + color_off, + (int)line_box.width()); + 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(), + enclosing_int_rect(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<const Layout::TextNode&>(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() && downcast<DOM::Element>(layout_node.dom_node())->specified_css_values()) { + struct NameAndValue { + String name; + String value; + }; + Vector<NameAndValue> properties; + downcast<DOM::Element>(*layout_node.dom_node()).specified_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.appendf(" (%s: %s)\n", property.name.characters(), property.value.characters()); + } + } + + ++indent; + layout_node.for_each_child([&](auto& child) { + dump_tree(builder, child, show_box_model, show_specified_style, interactive); + }); + --indent; +} + +void dump_selector(const CSS::Selector& selector) +{ + dbgprintf(" CSS::Selector:\n"); + + for (auto& complex_selector : selector.complex_selectors()) { + dbgprintf(" "); + + const char* relation_description = ""; + switch (complex_selector.relation) { + case CSS::Selector::ComplexSelector::Relation::None: + relation_description = "None"; + break; + case CSS::Selector::ComplexSelector::Relation::ImmediateChild: + relation_description = "ImmediateChild"; + break; + case CSS::Selector::ComplexSelector::Relation::Descendant: + relation_description = "Descendant"; + break; + case CSS::Selector::ComplexSelector::Relation::AdjacentSibling: + relation_description = "AdjacentSibling"; + break; + case CSS::Selector::ComplexSelector::Relation::GeneralSibling: + relation_description = "GeneralSibling"; + break; + } + + if (*relation_description) + dbgprintf("{%s} ", relation_description); + + for (size_t i = 0; i < complex_selector.compound_selector.size(); ++i) { + auto& simple_selector = complex_selector.compound_selector[i]; + const char* type_description = "Unknown"; + switch (simple_selector.type) { + case CSS::Selector::SimpleSelector::Type::Invalid: + type_description = "Invalid"; + break; + 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; + } + const char* attribute_match_type_description = ""; + switch (simple_selector.attribute_match_type) { + case CSS::Selector::SimpleSelector::AttributeMatchType::None: + break; + case CSS::Selector::SimpleSelector::AttributeMatchType::HasAttribute: + attribute_match_type_description = "HasAttribute"; + break; + case CSS::Selector::SimpleSelector::AttributeMatchType::ExactValueMatch: + attribute_match_type_description = "ExactValueMatch"; + break; + case CSS::Selector::SimpleSelector::AttributeMatchType::Contains: + attribute_match_type_description = "Contains"; + break; + } + + const char* pseudo_class_description = ""; + switch (simple_selector.pseudo_class) { + case CSS::Selector::SimpleSelector::PseudoClass::Link: + pseudo_class_description = "Link"; + break; + case CSS::Selector::SimpleSelector::PseudoClass::Visited: + pseudo_class_description = "Visited"; + break; + case CSS::Selector::SimpleSelector::PseudoClass::None: + pseudo_class_description = "None"; + break; + case CSS::Selector::SimpleSelector::PseudoClass::Root: + pseudo_class_description = "Root"; + break; + case CSS::Selector::SimpleSelector::PseudoClass::Focus: + pseudo_class_description = "Focus"; + break; + case CSS::Selector::SimpleSelector::PseudoClass::Empty: + pseudo_class_description = "Empty"; + break; + case CSS::Selector::SimpleSelector::PseudoClass::Hover: + pseudo_class_description = "Hover"; + break; + case CSS::Selector::SimpleSelector::PseudoClass::LastChild: + pseudo_class_description = "LastChild"; + break; + case CSS::Selector::SimpleSelector::PseudoClass::FirstChild: + pseudo_class_description = "FirstChild"; + break; + case CSS::Selector::SimpleSelector::PseudoClass::OnlyChild: + pseudo_class_description = "OnlyChild"; + break; + } + + dbgprintf("%s:%s", type_description, simple_selector.value.characters()); + if (simple_selector.pseudo_class != CSS::Selector::SimpleSelector::PseudoClass::None) + dbgprintf(" pseudo_class=%s", pseudo_class_description); + if (simple_selector.attribute_match_type != CSS::Selector::SimpleSelector::AttributeMatchType::None) { + dbgprintf(" [%s, name='%s', value='%s']", attribute_match_type_description, simple_selector.attribute_name.characters(), simple_selector.attribute_value.characters()); + } + + if (i != complex_selector.compound_selector.size() - 1) + dbgprintf(", "); + } + dbgprintf("\n"); + } +} + +void dump_rule(const CSS::StyleRule& rule) +{ + dbgprintf("Rule:\n"); + for (auto& selector : rule.selectors()) { + dump_selector(selector); + } + dbgprintf(" Declarations:\n"); + for (auto& property : rule.declaration().properties()) { + dbgprintf(" %s: '%s'\n", CSS::string_from_property_id(property.property_id), property.value->to_string().characters()); + } +} + +void dump_sheet(const CSS::StyleSheet& sheet) +{ + dbgprintf("StyleSheet{%p}: %zu rule(s)\n", &sheet, sheet.rules().size()); + + for (auto& rule : sheet.rules()) { + dump_rule(rule); + } +} + +} |