e800605ad3
This URL library ends up being a relatively fundamental base library of the system, as LibCore depends on LibURL. This change has two main benefits: * Moving AK back more towards being an agnostic library that can be used between the kernel and userspace. URL has never really fit that description - and is not used in the kernel. * URL _should_ depend on LibUnicode, as it needs punnycode support. However, it's not really possible to do this inside of AK as it can't depend on any external library. This change brings us a little closer to being able to do that, but unfortunately we aren't there quite yet, as the code generators depend on LibCore.
207 lines
7.8 KiB
C++
207 lines
7.8 KiB
C++
/*
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* Copyright (c) 2020-2022, Andreas Kling <kling@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#pragma once
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#include <LibGfx/Color.h>
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#include <LibJS/Heap/Cell.h>
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#include <LibWeb/DOM/Node.h>
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#include <LibWeb/HTML/Parser/HTMLTokenizer.h>
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#include <LibWeb/HTML/Parser/ListOfActiveFormattingElements.h>
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#include <LibWeb/HTML/Parser/StackOfOpenElements.h>
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namespace Web::HTML {
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#define ENUMERATE_INSERTION_MODES \
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__ENUMERATE_INSERTION_MODE(Initial) \
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__ENUMERATE_INSERTION_MODE(BeforeHTML) \
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__ENUMERATE_INSERTION_MODE(BeforeHead) \
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__ENUMERATE_INSERTION_MODE(InHead) \
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__ENUMERATE_INSERTION_MODE(InHeadNoscript) \
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__ENUMERATE_INSERTION_MODE(AfterHead) \
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__ENUMERATE_INSERTION_MODE(InBody) \
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__ENUMERATE_INSERTION_MODE(Text) \
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__ENUMERATE_INSERTION_MODE(InTable) \
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__ENUMERATE_INSERTION_MODE(InTableText) \
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__ENUMERATE_INSERTION_MODE(InCaption) \
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__ENUMERATE_INSERTION_MODE(InColumnGroup) \
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__ENUMERATE_INSERTION_MODE(InTableBody) \
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__ENUMERATE_INSERTION_MODE(InRow) \
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__ENUMERATE_INSERTION_MODE(InCell) \
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__ENUMERATE_INSERTION_MODE(InSelect) \
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__ENUMERATE_INSERTION_MODE(InSelectInTable) \
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__ENUMERATE_INSERTION_MODE(InTemplate) \
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__ENUMERATE_INSERTION_MODE(AfterBody) \
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__ENUMERATE_INSERTION_MODE(InFrameset) \
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__ENUMERATE_INSERTION_MODE(AfterFrameset) \
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__ENUMERATE_INSERTION_MODE(AfterAfterBody) \
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__ENUMERATE_INSERTION_MODE(AfterAfterFrameset)
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class HTMLParser final : public JS::Cell {
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JS_CELL(HTMLParser, JS::Cell);
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JS_DECLARE_ALLOCATOR(HTMLParser);
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friend class HTMLTokenizer;
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public:
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~HTMLParser();
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static JS::NonnullGCPtr<HTMLParser> create_for_scripting(DOM::Document&);
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static JS::NonnullGCPtr<HTMLParser> create_with_uncertain_encoding(DOM::Document&, ByteBuffer const& input);
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static JS::NonnullGCPtr<HTMLParser> create(DOM::Document&, StringView input, ByteString const& encoding);
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void run(HTMLTokenizer::StopAtInsertionPoint = HTMLTokenizer::StopAtInsertionPoint::No);
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void run(const URL::URL&, HTMLTokenizer::StopAtInsertionPoint = HTMLTokenizer::StopAtInsertionPoint::No);
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static void the_end(JS::NonnullGCPtr<DOM::Document>, JS::GCPtr<HTMLParser> = nullptr);
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DOM::Document& document();
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static Vector<JS::Handle<DOM::Node>> parse_html_fragment(DOM::Element& context_element, StringView);
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static String serialize_html_fragment(DOM::Node const& node);
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enum class InsertionMode {
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#define __ENUMERATE_INSERTION_MODE(mode) mode,
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ENUMERATE_INSERTION_MODES
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#undef __ENUMERATE_INSERTION_MODE
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};
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InsertionMode insertion_mode() const { return m_insertion_mode; }
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static bool is_special_tag(FlyString const& tag_name, Optional<FlyString> const& namespace_);
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HTMLTokenizer& tokenizer() { return m_tokenizer; }
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// https://html.spec.whatwg.org/multipage/parsing.html#abort-a-parser
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void abort();
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bool aborted() const { return m_aborted; }
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bool stopped() const { return m_stop_parsing; }
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size_t script_nesting_level() const { return m_script_nesting_level; }
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private:
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HTMLParser(DOM::Document&, StringView input, ByteString const& encoding);
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HTMLParser(DOM::Document&);
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virtual void visit_edges(Cell::Visitor&) override;
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char const* insertion_mode_name() const;
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DOM::QuirksMode which_quirks_mode(HTMLToken const&) const;
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void handle_initial(HTMLToken&);
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void handle_before_html(HTMLToken&);
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void handle_before_head(HTMLToken&);
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void handle_in_head(HTMLToken&);
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void handle_in_head_noscript(HTMLToken&);
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void handle_after_head(HTMLToken&);
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void handle_in_body(HTMLToken&);
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void handle_after_body(HTMLToken&);
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void handle_after_after_body(HTMLToken&);
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void handle_text(HTMLToken&);
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void handle_in_table(HTMLToken&);
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void handle_in_table_body(HTMLToken&);
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void handle_in_row(HTMLToken&);
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void handle_in_cell(HTMLToken&);
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void handle_in_table_text(HTMLToken&);
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void handle_in_select_in_table(HTMLToken&);
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void handle_in_select(HTMLToken&);
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void handle_in_caption(HTMLToken&);
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void handle_in_column_group(HTMLToken&);
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void handle_in_template(HTMLToken&);
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void handle_in_frameset(HTMLToken&);
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void handle_after_frameset(HTMLToken&);
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void handle_after_after_frameset(HTMLToken&);
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void stop_parsing() { m_stop_parsing = true; }
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void generate_implied_end_tags(FlyString const& exception = {});
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void generate_all_implied_end_tags_thoroughly();
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JS::NonnullGCPtr<DOM::Element> create_element_for(HTMLToken const&, Optional<FlyString> const& namespace_, DOM::Node& intended_parent);
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struct AdjustedInsertionLocation {
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JS::GCPtr<DOM::Node> parent;
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JS::GCPtr<DOM::Node> insert_before_sibling;
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};
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AdjustedInsertionLocation find_appropriate_place_for_inserting_node(JS::GCPtr<DOM::Element> override_target = nullptr);
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DOM::Text* find_character_insertion_node();
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void flush_character_insertions();
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JS::NonnullGCPtr<DOM::Element> insert_foreign_element(HTMLToken const&, Optional<FlyString> const& namespace_);
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JS::NonnullGCPtr<DOM::Element> insert_html_element(HTMLToken const&);
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DOM::Element& current_node();
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DOM::Element& adjusted_current_node();
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DOM::Element& node_before_current_node();
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void insert_character(u32 data);
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void insert_comment(HTMLToken&);
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void reconstruct_the_active_formatting_elements();
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void close_a_p_element();
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void process_using_the_rules_for(InsertionMode, HTMLToken&);
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void process_using_the_rules_for_foreign_content(HTMLToken&);
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void parse_generic_raw_text_element(HTMLToken&);
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void increment_script_nesting_level();
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void decrement_script_nesting_level();
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void reset_the_insertion_mode_appropriately();
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void adjust_mathml_attributes(HTMLToken&);
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void adjust_svg_tag_names(HTMLToken&);
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void adjust_svg_attributes(HTMLToken&);
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static void adjust_foreign_attributes(HTMLToken&);
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enum AdoptionAgencyAlgorithmOutcome {
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DoNothing,
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RunAnyOtherEndTagSteps,
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};
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AdoptionAgencyAlgorithmOutcome run_the_adoption_agency_algorithm(HTMLToken&);
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void clear_the_stack_back_to_a_table_context();
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void clear_the_stack_back_to_a_table_body_context();
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void clear_the_stack_back_to_a_table_row_context();
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void close_the_cell();
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InsertionMode m_insertion_mode { InsertionMode::Initial };
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InsertionMode m_original_insertion_mode { InsertionMode::Initial };
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StackOfOpenElements m_stack_of_open_elements;
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Vector<InsertionMode> m_stack_of_template_insertion_modes;
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ListOfActiveFormattingElements m_list_of_active_formatting_elements;
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HTMLTokenizer m_tokenizer;
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bool m_foster_parenting { false };
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bool m_frameset_ok { true };
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bool m_parsing_fragment { false };
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// https://html.spec.whatwg.org/multipage/parsing.html#scripting-flag
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// The scripting flag is set to "enabled" if scripting was enabled for the Document with which the parser is associated when the parser was created, and "disabled" otherwise.
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bool m_scripting_enabled { true };
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bool m_invoked_via_document_write { false };
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bool m_aborted { false };
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bool m_parser_pause_flag { false };
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bool m_stop_parsing { false };
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size_t m_script_nesting_level { 0 };
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JS::Realm& realm();
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JS::GCPtr<DOM::Document> m_document;
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JS::GCPtr<HTMLHeadElement> m_head_element;
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JS::GCPtr<HTMLFormElement> m_form_element;
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JS::GCPtr<DOM::Element> m_context_element;
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Vector<HTMLToken> m_pending_table_character_tokens;
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JS::GCPtr<DOM::Text> m_character_insertion_node;
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StringBuilder m_character_insertion_builder;
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};
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RefPtr<CSS::StyleValue> parse_dimension_value(StringView);
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RefPtr<CSS::StyleValue> parse_nonzero_dimension_value(StringView);
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Optional<Color> parse_legacy_color_value(StringView);
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}
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