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/*
* (C) 1999-2003 Lars Knoll (knoll@kde.org)
* Copyright (C) 2004, 2006, 2008, 2009, 2010, 2012 Apple Inc. All rights reserved.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public License
* along with this library; see the file COPYING.LIB. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#ifndef MediaList_h
#define MediaList_h
#include "ExceptionCode.h"
#include <wtf/Forward.h>
#include <wtf/PassRefPtr.h>
#include <wtf/RefCounted.h>
#include <wtf/Vector.h>
#include <wtf/text/WTFString.h>
namespace WebCore {
class CSSRule;
class CSSStyleSheet;
class Document;
class MediaList;
class MediaQuery;
class MediaQuerySet : public RefCounted<MediaQuerySet> {
public:
static PassRefPtr<MediaQuerySet> create()
{
return adoptRef(new MediaQuerySet());
}
static PassRefPtr<MediaQuerySet> create(const String& mediaString)
{
return adoptRef(new MediaQuerySet(mediaString, false));
}
static PassRefPtr<MediaQuerySet> createAllowingDescriptionSyntax(const String& mediaString)
{
return adoptRef(new MediaQuerySet(mediaString, true));
}
~MediaQuerySet();
bool parse(const String&);
bool add(const String&);
bool remove(const String&);
void addMediaQuery(PassOwnPtr<MediaQuery>);
const Vector<OwnPtr<MediaQuery> >& queryVector() const { return m_queries; }
int lastLine() const { return m_lastLine; }
void setLastLine(int lastLine) { m_lastLine = lastLine; }
String mediaText() const;
PassRefPtr<MediaQuerySet> copy() const { return adoptRef(new MediaQuerySet(*this)); }
void reportMemoryUsage(MemoryObjectInfo*) const;
private:
MediaQuerySet();
MediaQuerySet(const String& mediaQuery, bool fallbackToDescription);
MediaQuerySet(const MediaQuerySet&);
unsigned m_fallbackToDescriptor : 1; // true if failed media query parsing should fallback to media description parsing.
signed m_lastLine : 31;
Vector<OwnPtr<MediaQuery> > m_queries;
};
class MediaList : public RefCounted<MediaList> {
public:
static PassRefPtr<MediaList> create(MediaQuerySet* mediaQueries, CSSStyleSheet* parentSheet)
{
return adoptRef(new MediaList(mediaQueries, parentSheet));
}
static PassRefPtr<MediaList> create(MediaQuerySet* mediaQueries, CSSRule* parentRule)
{
return adoptRef(new MediaList(mediaQueries, parentRule));
}
~MediaList();
unsigned length() const { return m_mediaQueries->queryVector().size(); }
String item(unsigned index) const;
void deleteMedium(const String& oldMedium, ExceptionCode&);
void appendMedium(const String& newMedium, ExceptionCode&);
String mediaText() const { return m_mediaQueries->mediaText(); }
void setMediaText(const String&, ExceptionCode&);
// Not part of CSSOM.
CSSRule* parentRule() const { return m_parentRule; }
CSSStyleSheet* parentStyleSheet() const { return m_parentStyleSheet; }
void clearParentStyleSheet() { ASSERT(m_parentStyleSheet); m_parentStyleSheet = 0; }
void clearParentRule() { ASSERT(m_parentRule); m_parentRule = 0; }
const MediaQuerySet* queries() const { return m_mediaQueries.get(); }
void reattach(MediaQuerySet*);
void reportMemoryUsage(MemoryObjectInfo*) const;
private:
MediaList();
MediaList(MediaQuerySet*, CSSStyleSheet* parentSheet);
MediaList(MediaQuerySet*, CSSRule* parentRule);
RefPtr<MediaQuerySet> m_mediaQueries;
CSSStyleSheet* m_parentStyleSheet;
CSSRule* m_parentRule;
};
#if ENABLE(RESOLUTION_MEDIA_QUERY)
// Adds message to inspector console whenever dpi or dpcm values are used for "screen" media.
void reportMediaQueryWarningIfNeeded(Document*, const MediaQuerySet*);
#endif
} // namespace
#endif
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