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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 CSSParserContext_h
#define CSSParserContext_h
#include "core/CoreExport.h"
#include "core/css/parser/CSSParserMode.h"
#include "core/fetch/ResourceLoaderOptions.h"
#include "platform/weborigin/KURL.h"
#include "platform/weborigin/Referrer.h"
namespace blink {
class CSSStyleSheet;
class Document;
class StyleSheetContents;
class UseCounter;
class CORE_EXPORT CSSParserContext
: public GarbageCollectedFinalized<CSSParserContext> {
public:
// https://drafts.csswg.org/selectors/#profiles
enum SelectorProfile { DynamicProfile, StaticProfile };
// All three of these factories copy the context and override the current
// UseCounter handle.
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, UseCounter*);
static CSSParserContext* create(CSSParserMode,
SelectorProfile = DynamicProfile,
UseCounter* = nullptr);
// FIXME: We shouldn't need the UseCounter argument as we could infer it from
// the Document but some callers want to disable use counting (e.g. the
// WebInspector).
static CSSParserContext* create(const Document&, UseCounter*);
static CSSParserContext* create(const Document&,
const KURL& baseURLOverride = KURL(),
const String& charset = emptyString(),
SelectorProfile = DynamicProfile,
UseCounter* = nullptr);
bool operator==(const CSSParserContext&) const;
bool operator!=(const CSSParserContext& other) const {
return !(*this == other);
}
CSSParserMode mode() const { return m_mode; }
CSSParserMode matchMode() const { return m_matchMode; }
const KURL& baseURL() const { return m_baseURL; }
const String& charset() const { return m_charset; }
const Referrer& referrer() const { return m_referrer; }
bool isHTMLDocument() const { return m_isHTMLDocument; }
bool isDynamicProfile() const { return m_profile == DynamicProfile; }
bool isStaticProfile() const { return m_profile == StaticProfile; }
// 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 m_useLegacyBackgroundSizeShorthandBehavior;
}
// FIXME: These setters shouldn't exist, however the current lifetime of
// CSSParserContext is not well understood and thus we sometimes need to
// override these fields.
void setMode(CSSParserMode mode) { m_mode = mode; }
void setBaseURL(const KURL& baseURL) { m_baseURL = baseURL; }
void setCharset(const String& charset) { m_charset = charset; }
void setReferrer(const Referrer& referrer) { m_referrer = referrer; }
KURL completeURL(const String& url) const;
// This may return nullptr if counting is disabled.
// See comments on constructors.
UseCounter* useCounter() const { return m_useCounter; }
bool isUseCounterRecordingEnabled() const { return m_useCounter; }
ContentSecurityPolicyDisposition shouldCheckContentSecurityPolicy() const {
return m_shouldCheckContentSecurityPolicy;
}
DEFINE_INLINE_TRACE() {}
private:
CSSParserContext(const KURL& baseURL,
const String& charset,
CSSParserMode,
CSSParserMode matchMode,
SelectorProfile,
const Referrer&,
bool isHTMLDocument,
bool useLegacyBackgroundSizeShorthandBehavior,
ContentSecurityPolicyDisposition,
UseCounter*);
KURL m_baseURL;
String m_charset;
CSSParserMode m_mode;
CSSParserMode m_matchMode;
SelectorProfile m_profile = DynamicProfile;
Referrer m_referrer;
bool m_isHTMLDocument;
bool m_useLegacyBackgroundSizeShorthandBehavior;
ContentSecurityPolicyDisposition m_shouldCheckContentSecurityPolicy;
UseCounter* m_useCounter;
};
CORE_EXPORT const CSSParserContext* strictCSSParserContext();
} // namespace blink
#endif // CSSParserContext_h
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