738e682ae0
The changes in commit d462a6720a meant
that `CSSLoader::load_next_import_if_needed()` was no longer being
called, so no `@import` rules were loading.
The spec does not seem to mention when that loading should take place,
but WebKit does this at parse time, as each rule is added to the style
sheet. If it works for them, it's probably not that bad. :^)
So, that's what we now do here. The `CSSImportRule` creates a fetch
request when it is constructed, so each one is responsible for its own
contents.
82 lines
2.5 KiB
C++
82 lines
2.5 KiB
C++
/*
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* Copyright (c) 2021, the SerenityOS developers.
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* Copyright (c) 2021, Sam Atkins <atkinssj@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <AK/Debug.h>
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#include <AK/URL.h>
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#include <LibWeb/CSS/CSSImportRule.h>
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#include <LibWeb/CSS/Parser/Parser.h>
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#include <LibWeb/DOM/Document.h>
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#include <LibWeb/Loader/ResourceLoader.h>
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namespace Web::CSS {
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CSSImportRule::CSSImportRule(AK::URL url, DOM::Document& document)
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: m_url(move(url))
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, m_document(document)
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{
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dbgln_if(CSS_LOADER_DEBUG, "CSSImportRule: Loading import URL: {}", m_url);
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auto request = LoadRequest::create_for_url_on_page(m_url, document.page());
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set_resource(ResourceLoader::the().load_resource(Resource::Type::Generic, request));
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m_document_load_event_delayer.emplace(m_document);
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}
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CSSImportRule::~CSSImportRule()
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{
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}
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// https://www.w3.org/TR/cssom/#serialize-a-css-rule
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String CSSImportRule::serialized() const
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{
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StringBuilder builder;
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// The result of concatenating the following:
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// 1. The string "@import" followed by a single SPACE (U+0020).
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builder.append("@import "sv);
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// 2. The result of performing serialize a URL on the rule’s location.
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// FIXME: Look into the correctness of this serialization
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builder.append("url("sv);
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builder.append(m_url.to_string());
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builder.append(')');
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// FIXME: 3. If the rule’s associated media list is not empty, a single SPACE (U+0020) followed by the result of performing serialize a media query list on the media list.
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// 4. The string ";", i.e., SEMICOLON (U+003B).
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builder.append(';');
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return builder.to_string();
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}
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void CSSImportRule::resource_did_fail()
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{
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dbgln_if(CSS_LOADER_DEBUG, "CSSImportRule: Resource did fail. URL: {}", resource()->url());
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m_document_load_event_delayer.clear();
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}
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void CSSImportRule::resource_did_load()
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{
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VERIFY(resource());
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m_document_load_event_delayer.clear();
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if (!resource()->has_encoded_data()) {
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dbgln_if(CSS_LOADER_DEBUG, "CSSImportRule: Resource did load, no encoded data. URL: {}", resource()->url());
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} else {
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dbgln_if(CSS_LOADER_DEBUG, "CSSImportRule: Resource did load, has encoded data. URL: {}", resource()->url());
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}
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auto sheet = parse_css(CSS::ParsingContext(m_document), resource()->encoded_data());
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if (!sheet) {
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dbgln_if(CSS_LOADER_DEBUG, "CSSImportRule: Failed to parse stylesheet: {}", resource()->url());
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return;
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}
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m_style_sheet = move(sheet);
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}
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}
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