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https://github.com/RGBCube/serenity
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LibWeb: Move document loading into separate file
In upcoming navigables refactor new function that uses fetch instead of ResourceLoader to load document content is going to be introduced: https://html.spec.whatwg.org/multipage/browsing-the-web.html#create-navigation-params-by-fetching `parse_document()` need to be separated from FrameLoader to reuse code responsible for parsing HTTP response into DOM document.
This commit is contained in:
Aliaksandr Kalenik
Andreas Kling
parent
60a26077a7
commit
804af38a96
5 changed files with 222 additions and 187 deletions
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@ -8,18 +8,12 @@
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#include <AK/JsonArray.h>
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#include <AK/LexicalPath.h>
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#include <AK/SourceGenerator.h>
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#include <LibGemini/Document.h>
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#include <LibGfx/ImageFormats/ImageDecoder.h>
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#include <LibMarkdown/Document.h>
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#include <LibTextCodec/Decoder.h>
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#include <LibWeb/Bindings/MainThreadVM.h>
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#include <LibWeb/DOM/Document.h>
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#include <LibWeb/DOM/DocumentLoading.h>
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#include <LibWeb/DOM/ElementFactory.h>
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#include <LibWeb/DOM/Text.h>
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#include <LibWeb/HTML/BrowsingContext.h>
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#include <LibWeb/HTML/HTMLIFrameElement.h>
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#include <LibWeb/HTML/NavigationParams.h>
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#include <LibWeb/HTML/Parser/HTMLEncodingDetection.h>
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#include <LibWeb/HTML/Parser/HTMLParser.h>
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#include <LibWeb/Loader/FrameLoader.h>
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#include <LibWeb/Loader/ResourceLoader.h>
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@ -49,185 +43,6 @@ FrameLoader::FrameLoader(HTML::BrowsingContext& browsing_context)
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FrameLoader::~FrameLoader() = default;
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static bool build_markdown_document(DOM::Document& document, ByteBuffer const& data)
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{
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auto markdown_document = Markdown::Document::parse(data);
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if (!markdown_document)
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return false;
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auto extra_head_contents = R"~~~(
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<style>
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.zoomable {
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cursor: zoom-in;
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max-width: 100%;
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}
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.zoomable.zoomed-in {
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cursor: zoom-out;
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max-width: none;
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}
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</style>
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<script>
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function imageClickEventListener(event) {
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let image = event.target;
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if (image.classList.contains("zoomable")) {
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image.classList.toggle("zoomed-in");
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}
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}
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function processImages() {
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let images = document.querySelectorAll("img");
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let windowWidth = window.innerWidth;
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images.forEach((image) => {
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if (image.naturalWidth > windowWidth) {
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image.classList.add("zoomable");
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} else {
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image.classList.remove("zoomable");
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image.classList.remove("zoomed-in");
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}
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image.addEventListener("click", imageClickEventListener);
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});
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}
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document.addEventListener("load", () => {
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processImages();
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});
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window.addEventListener("resize", () => {
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processImages();
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});
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</script>
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)~~~"sv;
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auto parser = HTML::HTMLParser::create(document, markdown_document->render_to_html(extra_head_contents), "utf-8");
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parser->run(document.url());
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return true;
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}
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static bool build_text_document(DOM::Document& document, ByteBuffer const& data)
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{
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auto html_element = DOM::create_element(document, HTML::TagNames::html, Namespace::HTML).release_value_but_fixme_should_propagate_errors();
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MUST(document.append_child(html_element));
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auto head_element = DOM::create_element(document, HTML::TagNames::head, Namespace::HTML).release_value_but_fixme_should_propagate_errors();
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MUST(html_element->append_child(head_element));
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auto title_element = DOM::create_element(document, HTML::TagNames::title, Namespace::HTML).release_value_but_fixme_should_propagate_errors();
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MUST(head_element->append_child(title_element));
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auto title_text = document.create_text_node(document.url().basename());
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MUST(title_element->append_child(title_text));
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auto body_element = DOM::create_element(document, HTML::TagNames::body, Namespace::HTML).release_value_but_fixme_should_propagate_errors();
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MUST(html_element->append_child(body_element));
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auto pre_element = DOM::create_element(document, HTML::TagNames::pre, Namespace::HTML).release_value_but_fixme_should_propagate_errors();
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MUST(body_element->append_child(pre_element));
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MUST(pre_element->append_child(document.create_text_node(DeprecatedString::copy(data))));
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return true;
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}
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static bool build_image_document(DOM::Document& document, ByteBuffer const& data)
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{
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auto image = Platform::ImageCodecPlugin::the().decode_image(data);
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if (!image.has_value() || image->frames.is_empty())
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return false;
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auto const& frame = image->frames[0];
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auto const& bitmap = frame.bitmap;
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if (!bitmap)
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return false;
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auto html_element = DOM::create_element(document, HTML::TagNames::html, Namespace::HTML).release_value_but_fixme_should_propagate_errors();
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MUST(document.append_child(html_element));
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auto head_element = DOM::create_element(document, HTML::TagNames::head, Namespace::HTML).release_value_but_fixme_should_propagate_errors();
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MUST(html_element->append_child(head_element));
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auto title_element = DOM::create_element(document, HTML::TagNames::title, Namespace::HTML).release_value_but_fixme_should_propagate_errors();
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MUST(head_element->append_child(title_element));
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auto basename = LexicalPath::basename(document.url().serialize_path());
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auto title_text = document.heap().allocate<DOM::Text>(document.realm(), document, DeprecatedString::formatted("{} [{}x{}]", basename, bitmap->width(), bitmap->height())).release_allocated_value_but_fixme_should_propagate_errors();
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MUST(title_element->append_child(*title_text));
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auto body_element = DOM::create_element(document, HTML::TagNames::body, Namespace::HTML).release_value_but_fixme_should_propagate_errors();
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MUST(html_element->append_child(body_element));
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auto image_element = DOM::create_element(document, HTML::TagNames::img, Namespace::HTML).release_value_but_fixme_should_propagate_errors();
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MUST(image_element->set_attribute(HTML::AttributeNames::src, document.url().to_deprecated_string()));
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MUST(body_element->append_child(image_element));
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return true;
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}
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static bool build_gemini_document(DOM::Document& document, ByteBuffer const& data)
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{
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StringView gemini_data { data };
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auto gemini_document = Gemini::Document::parse(gemini_data, document.url());
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DeprecatedString html_data = gemini_document->render_to_html();
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dbgln_if(GEMINI_DEBUG, "Gemini data:\n\"\"\"{}\"\"\"", gemini_data);
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dbgln_if(GEMINI_DEBUG, "Converted to HTML:\n\"\"\"{}\"\"\"", html_data);
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auto parser = HTML::HTMLParser::create(document, html_data, "utf-8");
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parser->run(document.url());
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return true;
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}
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static bool build_xml_document(DOM::Document& document, ByteBuffer const& data)
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{
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auto encoding = HTML::run_encoding_sniffing_algorithm(document, data);
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auto decoder = TextCodec::decoder_for(encoding);
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VERIFY(decoder.has_value());
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auto source = decoder->to_utf8(data).release_value_but_fixme_should_propagate_errors();
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XML::Parser parser(source, { .resolve_external_resource = resolve_xml_resource });
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XMLDocumentBuilder builder { document };
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auto result = parser.parse_with_listener(builder);
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return !result.is_error() && !builder.has_error();
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}
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static bool build_video_document(DOM::Document& document)
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{
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auto html_element = DOM::create_element(document, HTML::TagNames::html, Namespace::HTML).release_value_but_fixme_should_propagate_errors();
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MUST(document.append_child(html_element));
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auto head_element = DOM::create_element(document, HTML::TagNames::head, Namespace::HTML).release_value_but_fixme_should_propagate_errors();
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MUST(html_element->append_child(head_element));
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auto body_element = DOM::create_element(document, HTML::TagNames::body, Namespace::HTML).release_value_but_fixme_should_propagate_errors();
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MUST(html_element->append_child(body_element));
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auto video_element = DOM::create_element(document, HTML::TagNames::video, Namespace::HTML).release_value_but_fixme_should_propagate_errors();
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MUST(video_element->set_attribute(HTML::AttributeNames::src, document.url().to_deprecated_string()));
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MUST(video_element->set_attribute(HTML::AttributeNames::autoplay, DeprecatedString::empty()));
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MUST(video_element->set_attribute(HTML::AttributeNames::controls, DeprecatedString::empty()));
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MUST(body_element->append_child(video_element));
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return true;
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}
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bool FrameLoader::parse_document(DOM::Document& document, ByteBuffer const& data)
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{
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auto& mime_type = document.content_type();
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if (mime_type == "text/html" || mime_type == "image/svg+xml") {
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auto parser = HTML::HTMLParser::create_with_uncertain_encoding(document, data);
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parser->run(document.url());
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return true;
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}
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if (mime_type.ends_with("+xml"sv) || mime_type.is_one_of("text/xml", "application/xml"))
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return build_xml_document(document, data);
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if (mime_type.starts_with("image/"sv))
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return build_image_document(document, data);
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if (mime_type.starts_with("video/"sv))
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return build_video_document(document);
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if (mime_type == "text/plain" || mime_type == "application/json")
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return build_text_document(document, data);
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if (mime_type == "text/markdown")
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return build_markdown_document(document, data);
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if (mime_type == "text/gemini")
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return build_gemini_document(document, data);
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return false;
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}
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bool FrameLoader::load(LoadRequest& request, Type type)
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{
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if (!request.is_valid()) {
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