/* * Copyright (c) 2018-2020, Andreas Kling * 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 #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include namespace Web { void dump_tree(const DOM::Node& node) { static int indent = 0; for (int i = 0; i < indent; ++i) dbgprintf(" "); if (is(node)) { dbgprintf("*Document*\n"); } else if (is(node)) { dbgprintf("<%s", downcast(node).local_name().characters()); downcast(node).for_each_attribute([](auto& name, auto& value) { dbgprintf(" %s=%s", name.characters(), value.characters()); }); dbgprintf(">\n"); } else if (is(node)) { dbgprintf("\"%s\"\n", downcast(node).data().characters()); } else if (is(node)) { dbgprintf("\n"); } else if (is(node)) { dbgprintf("\n", downcast(node).data().characters()); } else if (is(node)) { dbgprintf("#document-fragment\n"); } ++indent; if (is(node)) { if (!is(node)) { static_cast(node).for_each_child([](auto& child) { dump_tree(child); }); } else { auto& template_element = downcast(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(layout_node.dom_node())) tag_name = "#text"; else if (is(layout_node.dom_node())) tag_name = "#document"; else if (is(layout_node.dom_node())) tag_name = downcast(*layout_node.dom_node()).local_name(); else tag_name = "???"; String identifier = ""; if (layout_node.dom_node() && is(*layout_node.dom_node())) { auto& element = downcast(*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_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_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_node) && static_cast(layout_node).children_are_inline()) { auto& block = static_cast(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(fragment.layout_node())) { for (size_t i = 0; i < indent; ++i) builder.append(" "); auto& layout_text = static_cast(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(layout_node.dom_node())->specified_css_values()) { struct NameAndValue { String name; String value; }; Vector properties; downcast(*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); } } }