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// Copyright 2016 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef THIRD_PARTY_BLINK_RENDERER_CORE_CSS_PARSER_CSS_PARSER_CONTEXT_H_
#define THIRD_PARTY_BLINK_RENDERER_CORE_CSS_PARSER_CSS_PARSER_CONTEXT_H_
#include "third_party/blink/renderer/core/core_export.h"
#include "third_party/blink/renderer/core/css/css_property_names.h"
#include "third_party/blink/renderer/core/css/parser/css_parser_mode.h"
#include "third_party/blink/renderer/core/execution_context/execution_context.h"
#include "third_party/blink/renderer/core/frame/web_feature_forward.h"
#include "third_party/blink/renderer/platform/heap/handle.h"
#include "third_party/blink/renderer/platform/loader/fetch/resource_loader_options.h"
#include "third_party/blink/renderer/platform/weborigin/kurl.h"
#include "third_party/blink/renderer/platform/weborigin/referrer.h"
#include "third_party/blink/renderer/platform/wtf/text/text_encoding.h"
namespace blink {
class CSSStyleSheet;
class Document;
class StyleRuleKeyframe;
class StyleSheetContents;
class CORE_EXPORT CSSParserContext
: public GarbageCollectedFinalized<CSSParserContext> {
public:
// https://drafts.csswg.org/selectors/#profiles
enum SelectorProfile { kLiveProfile, kSnapshotProfile };
// All three of these factories copy the context and override the current
// Document handle used for UseCounter.
static CSSParserContext* CreateWithStyleSheet(const CSSParserContext*,
const CSSStyleSheet*);
static CSSParserContext* CreateWithStyleSheetContents(
const CSSParserContext*,
const StyleSheetContents*);
// FIXME: This constructor shouldn't exist if we properly piped the UseCounter
// through the CSS subsystem. Currently the UseCounter life time is too crazy
// and we need a way to override it.
static CSSParserContext* Create(const CSSParserContext* other,
const Document* use_counter_document);
static CSSParserContext* Create(
const CSSParserContext* other,
const KURL& base_url_override,
bool is_opaque_response_from_service_worker,
network::mojom::ReferrerPolicy referrer_policy_override,
const WTF::TextEncoding& charset_override,
const Document* use_counter_document);
static CSSParserContext* Create(
CSSParserMode,
SecureContextMode,
SelectorProfile = kLiveProfile,
const Document* use_counter_document = nullptr);
static CSSParserContext* Create(const Document&);
static CSSParserContext* Create(
const Document&,
const KURL& base_url_override,
bool is_opaque_response_from_service_worker,
network::mojom::ReferrerPolicy referrer_policy_override,
const WTF::TextEncoding& charset = WTF::TextEncoding(),
SelectorProfile = kLiveProfile);
// This is used for workers, where we don't have a document.
static CSSParserContext* Create(const ExecutionContext&);
CSSParserContext(const KURL& base_url,
bool is_opaque_response_from_service_worker,
const WTF::TextEncoding& charset,
CSSParserMode,
CSSParserMode match_mode,
SelectorProfile,
const Referrer&,
bool is_html_document,
bool use_legacy_background_size_shorthand_behavior,
SecureContextMode,
ContentSecurityPolicyDisposition,
const Document* use_counter_document);
bool operator==(const CSSParserContext&) const;
bool operator!=(const CSSParserContext& other) const {
return !(*this == other);
}
CSSParserMode Mode() const { return mode_; }
CSSParserMode MatchMode() const { return match_mode_; }
const KURL& BaseURL() const { return base_url_; }
const WTF::TextEncoding& Charset() const { return charset_; }
const Referrer& GetReferrer() const { return referrer_; }
bool IsHTMLDocument() const { return is_html_document_; }
bool IsLiveProfile() const { return profile_ == kLiveProfile; }
// See documentation in StyleSheetContents for this function.
bool IsOpaqueResponseFromServiceWorker() const;
bool IsSecureContext() const;
// This quirk is to maintain compatibility with Android apps built on
// the Android SDK prior to and including version 18. Presumably, this
// can be removed any time after 2015. See http://crbug.com/277157.
bool UseLegacyBackgroundSizeShorthandBehavior() const {
return use_legacy_background_size_shorthand_behavior_;
}
// FIXME: This setter shouldn't exist, however the current lifetime of
// CSSParserContext is not well understood and thus we sometimes need to
// override this field.
void SetMode(CSSParserMode mode) { mode_ = mode; }
KURL CompleteURL(const String& url) const;
SecureContextMode GetSecureContextMode() const {
return secure_context_mode_;
}
void Count(WebFeature) const;
void Count(CSSParserMode, CSSPropertyID) const;
void CountDeprecation(WebFeature) const;
bool IsUseCounterRecordingEnabled() const { return document_; }
bool IsDocumentHandleEqual(const Document* other) const;
ContentSecurityPolicyDisposition ShouldCheckContentSecurityPolicy() const {
return should_check_content_security_policy_;
}
// TODO(ekaramad): We currently only report @keyframes violations. We need to
// report CSS transitions as well (https://crbug.com/906147).
// TODO(ekaramad): We should provide a source location in the violation
// report (https://crbug.com/906150, ).
bool IsLayoutAnimationsPolicyEnforced() const;
void ReportLayoutAnimationsViolationIfNeeded(const StyleRuleKeyframe&) const;
void Trace(blink::Visitor*);
private:
KURL base_url_;
const bool is_opaque_response_from_service_worker_;
WTF::TextEncoding charset_;
CSSParserMode mode_;
CSSParserMode match_mode_;
SelectorProfile profile_ = kLiveProfile;
Referrer referrer_;
bool is_html_document_;
bool use_legacy_background_size_shorthand_behavior_;
SecureContextMode secure_context_mode_;
ContentSecurityPolicyDisposition should_check_content_security_policy_;
WeakMember<const Document> document_;
};
CORE_EXPORT const CSSParserContext* StrictCSSParserContext(SecureContextMode);
} // namespace blink
#endif // THIRD_PARTY_BLINK_RENDERER_CORE_CSS_PARSER_CSS_PARSER_CONTEXT_H_