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LibWeb: Implement "attempt to populate the history entry's document"

Implements:
https://html.spec.whatwg.org/multipage/browsing-the-web.html#attempt-to-populate-the-history-entry's-document

This is going to be a replacement for `FrameLoader::load()` after
switching to navigables.

Brief description of `populate_session_history_entry_document`:
- If navigation params have url with fetch scheme then DOM document
  will be populated by fetching url and parsing response. This
  is going to be a replacement for `FrameLoader::load(AK::URL&)`.
- If url in navigation params is abort:srcdoc then DOM document
  will be populated by parsing HTML text passed in document resource.
  This is going to be a replacement for `FrameLoader::load_html()`
This commit is contained in:
Aliaksandr Kalenik 2023-04-06 18:10:12 +03:00 committed by Andreas Kling
parent 804af38a96
commit de2c016556
5 changed files with 238 additions and 0 deletions

View file

@ -13,6 +13,7 @@
#include <LibTextCodec/Decoder.h>
#include <LibWeb/DOM/Document.h>
#include <LibWeb/DOM/DocumentLoading.h>
#include <LibWeb/HTML/Navigable.h>
#include <LibWeb/HTML/NavigationParams.h>
#include <LibWeb/HTML/Parser/HTMLEncodingDetection.h>
#include <LibWeb/HTML/Parser/HTMLParser.h>
@ -201,4 +202,100 @@ bool parse_document(DOM::Document& document, ByteBuffer const& data)
return false;
}
// https://html.spec.whatwg.org/multipage/browsing-the-web.html#loading-a-document
JS::GCPtr<DOM::Document> load_document(Optional<HTML::NavigationParams> navigation_params)
{
VERIFY(navigation_params.has_value());
auto document = DOM::Document::create_and_initialize(DOM::Document::Type::HTML, "text/html", *navigation_params).release_value_but_fixme_should_propagate_errors();
auto& realm = document->realm();
if (navigation_params->response->body().has_value()) {
auto process_body = [navigation_params, document](ByteBuffer bytes) {
if (!parse_document(*document, bytes)) {
// FIXME: Load html page with an error if parsing failed.
TODO();
}
};
auto process_body_error = [](auto&) {
// FIXME: Load html page with an error if read of body failed.
TODO();
};
navigation_params->response->body()->fully_read(
realm,
move(process_body),
move(process_body_error),
JS::NonnullGCPtr { realm.global_object() })
.release_value_but_fixme_should_propagate_errors();
}
return document;
}
// https://html.spec.whatwg.org/multipage/document-lifecycle.html#read-ua-inline
JS::GCPtr<DOM::Document> create_document_for_inline_content(JS::GCPtr<HTML::Navigable> navigable, Optional<String> navigation_id, StringView content_html)
{
auto& vm = navigable->vm();
// 1. Let origin be a new opaque origin.
HTML::Origin origin {};
// 2. Let coop be a new cross-origin opener policy.
auto coop = HTML::CrossOriginOpenerPolicy {};
// 3. Let coopEnforcementResult be a new cross-origin opener policy enforcement result with
// url: response's URL
// origin: origin
// cross-origin opener policy: coop
HTML::CrossOriginOpenerPolicyEnforcementResult coop_enforcement_result {
.url = AK::URL("about:error"), // AD-HOC
.origin = origin,
.cross_origin_opener_policy = coop
};
// 4. Let navigationParams be a new navigation params with
// id: navigationId
// request: null
// response: a new response
// origin: origin
// policy container: a new policy container
// final sandboxing flag set: an empty set
// cross-origin opener policy: coop
// COOP enforcement result: coopEnforcementResult
// reserved environment: null
// navigable: navigable
// FIXME: navigation timing type: navTimingType
// FIXME: fetch controller: fetch controller
// FIXME: commit early hints: null
auto response = Fetch::Infrastructure::Response::create(vm);
response->url_list().append(AK::URL("about:error")); // AD-HOC: https://github.com/whatwg/html/issues/9122
HTML::NavigationParams navigation_params {
.id = navigation_id,
.request = {},
.response = *response,
.origin = move(origin),
.policy_container = HTML::PolicyContainer {},
.final_sandboxing_flag_set = HTML::SandboxingFlagSet {},
.cross_origin_opener_policy = move(coop),
.coop_enforcement_result = move(coop_enforcement_result),
.reserved_environment = {},
.browsing_context = navigable->active_browsing_context(),
.navigable = navigable,
};
// 5. Let document be the result of creating and initializing a Document object given "html", "text/html", and navigationParams.
auto document = DOM::Document::create_and_initialize(DOM::Document::Type::HTML, "text/html", navigation_params).release_value_but_fixme_should_propagate_errors();
// 6. Either associate document with a custom rendering that is not rendered using the normal Document rendering rules, or mutate document until it represents the content the
// user agent wants to render.
auto parser = HTML::HTMLParser::create(document, content_html, "utf-8");
parser->run(AK::URL("about:error"));
// 7. Return document.
return document;
}
}