759bfbb572
Get rid of the old, roundabout way of invalidating the rule cache by incrementing the StyleSheetList "generation". Instead, when something wants to invalidate the rule cache, just have it directly invalidate the rule cache. This makes it much easier to see what's happening anyway.
92 lines
2.8 KiB
C++
92 lines
2.8 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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// NOTE: Mark this rule as delaying the document load event *before* calling set_resource()
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// as it may trigger a synchronous resource_did_load() callback.
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m_document_load_event_delayer.emplace(document);
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set_resource(ResourceLoader::the().load_resource(Resource::Type::Generic, request));
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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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if (!m_document)
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return;
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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()->url()), 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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m_document->style_computer().invalidate_rule_cache();
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m_document->invalidate_style();
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}
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}
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