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Diffstat (limited to 'Libraries/LibWeb/Dump.cpp')
| -rw-r--r-- | Libraries/LibWeb/Dump.cpp | 258 |
1 files changed, 258 insertions, 0 deletions
diff --git a/Libraries/LibWeb/Dump.cpp b/Libraries/LibWeb/Dump.cpp new file mode 100644 index 0000000000..9da4607d19 --- /dev/null +++ b/Libraries/LibWeb/Dump.cpp @@ -0,0 +1,258 @@ +/* + * 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/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/DocumentType.h> +#include <LibWeb/DOM/Element.h> +#include <LibWeb/DOM/Text.h> +#include <LibWeb/Dump.h> +#include <LibWeb/Layout/LayoutBlock.h> +#include <LibWeb/Layout/LayoutNode.h> +#include <LibWeb/Layout/LayoutText.h> +#include <stdio.h> + +namespace Web { + +void dump_tree(const Node& node) +{ + static int indent = 0; + for (int i = 0; i < indent; ++i) + dbgprintf(" "); + if (is<Document>(node)) { + dbgprintf("*Document*\n"); + } else if (is<Element>(node)) { + dbgprintf("<%s", to<Element>(node).tag_name().characters()); + to<Element>(node).for_each_attribute([](auto& name, auto& value) { + dbgprintf(" %s=%s", name.characters(), value.characters()); + }); + dbgprintf(">\n"); + } else if (is<Text>(node)) { + dbgprintf("\"%s\"\n", static_cast<const Text&>(node).data().characters()); + } else if (is<DocumentType>(node)) { + dbgprintf("<!DOCTYPE>\n"); + } else if (is<Comment>(node)) { + dbgprintf("<!--%s-->\n", to<Comment>(node).data().characters()); + } + ++indent; + if (is<ParentNode>(node)) { + static_cast<const ParentNode&>(node).for_each_child([](auto& child) { + dump_tree(child); + }); + } + --indent; +} + +void dump_tree(const LayoutNode& layout_node) +{ + static size_t indent = 0; + for (size_t i = 0; i < indent; ++i) + dbgprintf(" "); + + String tag_name; + if (layout_node.is_anonymous()) + tag_name = "(anonymous)"; + else if (is<Text>(layout_node.node())) + tag_name = "#text"; + else if (is<Document>(layout_node.node())) + tag_name = "#document"; + else if (is<Element>(layout_node.node())) + tag_name = to<Element>(*layout_node.node()).tag_name(); + else + tag_name = "???"; + + if (!layout_node.is_box()) { + dbgprintf("%s {%s}\n", layout_node.class_name(), tag_name.characters()); + } else { + auto& layout_box = to<LayoutBox>(layout_node); + dbgprintf("%s {%s} at (%g,%g) size %gx%g", + layout_box.class_name(), + tag_name.characters(), + layout_box.x(), + layout_box.y(), + layout_box.width(), + layout_box.height()); + + // Dump the horizontal box properties + dbgprintf(" [%g+%g+%g %g %g+%g+%g]", + layout_box.box_model().margin().left.to_px(), + layout_box.box_model().border().left.to_px(), + layout_box.box_model().padding().left.to_px(), + layout_box.width(), + layout_box.box_model().padding().right.to_px(), + layout_box.box_model().border().right.to_px(), + layout_box.box_model().margin().right.to_px()); + + // And the vertical box properties + dbgprintf(" [%g+%g+%g %g %g+%g+%g]", + layout_box.box_model().margin().top.to_px(), + layout_box.box_model().border().top.to_px(), + layout_box.box_model().padding().top.to_px(), + layout_box.height(), + layout_box.box_model().padding().bottom.to_px(), + layout_box.box_model().border().bottom.to_px(), + layout_box.box_model().margin().bottom.to_px()); + + dbgprintf("\n"); + } + + if (layout_node.is_block() && static_cast<const LayoutBlock&>(layout_node).children_are_inline()) { + auto& block = static_cast<const LayoutBlock&>(layout_node); + for (size_t i = 0; i < indent; ++i) + dbgprintf(" "); + dbgprintf(" Line boxes (%d):\n", block.line_boxes().size()); + 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) + dbgprintf(" "); + dbgprintf(" [%d] width: %g\n", line_box_index, 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) + dbgprintf(" "); + dbgprintf(" [%d] layout_node: %s{%p}, start: %d, length: %d, rect: %s\n", + fragment_index, + fragment.layout_node().class_name(), + &fragment.layout_node(), + fragment.start(), + fragment.length(), + fragment.rect().to_string().characters()); + if (fragment.layout_node().is_text()) { + for (size_t i = 0; i < indent; ++i) + dbgprintf(" "); + auto& layout_text = static_cast<const LayoutText&>(fragment.layout_node()); + auto fragment_text = layout_text.text_for_rendering().substring(fragment.start(), fragment.length()); + dbgprintf(" text: \"%s\"\n", fragment_text.characters()); + } + } + } + } + + layout_node.style().for_each_property([&](auto property_id, auto& value) { + for (size_t i = 0; i < indent; ++i) + dbgprintf(" "); + dbgprintf(" (%s: %s)\n", CSS::string_from_property_id(property_id), value.to_string().characters()); + }); + + ++indent; + layout_node.for_each_child([](auto& child) { + dump_tree(child); + }); + --indent; +} + +void dump_rule(const StyleRule& rule) +{ + dbgprintf("Rule:\n"); + for (auto& selector : rule.selectors()) { + dbgprintf(" Selector:\n"); + + for (auto& complex_selector : selector.complex_selectors()) { + dbgprintf(" "); + + const char* relation_description = ""; + switch (complex_selector.relation) { + case Selector::ComplexSelector::Relation::None: + break; + case Selector::ComplexSelector::Relation::ImmediateChild: + relation_description = "ImmediateChild"; + break; + case Selector::ComplexSelector::Relation::Descendant: + relation_description = "Descendant"; + break; + case Selector::ComplexSelector::Relation::AdjacentSibling: + relation_description = "AdjacentSibling"; + break; + case 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 Selector::SimpleSelector::Type::Invalid: + type_description = "Invalid"; + break; + case Selector::SimpleSelector::Type::Universal: + type_description = "Universal"; + break; + case Selector::SimpleSelector::Type::Id: + type_description = "Id"; + break; + case Selector::SimpleSelector::Type::Class: + type_description = "Class"; + break; + case Selector::SimpleSelector::Type::TagName: + type_description = "TagName"; + break; + } + const char* attribute_match_type_description = ""; + switch (simple_selector.attribute_match_type) { + case Selector::SimpleSelector::AttributeMatchType::None: + break; + case Selector::SimpleSelector::AttributeMatchType::HasAttribute: + attribute_match_type_description = "HasAttribute"; + break; + case Selector::SimpleSelector::AttributeMatchType::ExactValueMatch: + attribute_match_type_description = "ExactValueMatch"; + break; + } + + dbgprintf("%s:%s", type_description, simple_selector.value.characters()); + if (simple_selector.attribute_match_type != 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"); + } + } + 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 StyleSheet& sheet) +{ + dbgprintf("StyleSheet{%p}: %d rule(s)\n", &sheet, sheet.rules().size()); + + for (auto& rule : sheet.rules()) { + dump_rule(rule); + } +} + +} |