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webengine/osswebengine/WebCore/css/MediaQueryExp.cpp
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Fri, 11 Jun 2010 14:42:15 +0300
changeset 74 91031d3aab7d
parent 68 92a765b5b3e7
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/*
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 * CSS Media Query
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 *
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 * Copyright (C) 2006 Kimmo Kinnunen <kimmo.t.kinnunen@nokia.com>.
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 *
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 * Redistribution and use in source and binary forms, with or without
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 * modification, are permitted provided that the following conditions
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 * are met:
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 * 1. Redistributions of source code must retain the above copyright
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 *    notice, this list of conditions and the following disclaimer.
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 * 2. Redistributions in binary form must reproduce the above copyright
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 *    notice, this list of conditions and the following disclaimer in the
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 *    documentation and/or other materials provided with the distribution.
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 *
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 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY
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 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
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 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
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 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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 */
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#include "config.h"













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#include "MediaQueryExp.h"













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#include "cssparser.h"








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#include "CSSPrimitiveValue.h"













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#include "CSSValueList.h"













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namespace WebCore {













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MediaQueryExp::MediaQueryExp(const AtomicString& mediaFeature, ValueList* valueList)













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    : m_mediaFeature(mediaFeature)













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    , m_value(0)













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{













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    if (valueList) {













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        if (valueList->size() == 1) {













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            Value* value = valueList->current();













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            if (value->id != 0)













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                m_value = new CSSPrimitiveValue(value->id);













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            else if (value->unit == CSSPrimitiveValue::CSS_STRING)













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                m_value = new CSSPrimitiveValue(domString(value->string), (CSSPrimitiveValue::UnitTypes) value->unit);













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            else if (value->unit >= CSSPrimitiveValue::CSS_NUMBER &&













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                      value->unit <= CSSPrimitiveValue::CSS_KHZ)













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                m_value = new CSSPrimitiveValue(value->fValue, (CSSPrimitiveValue::UnitTypes) value->unit);













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            valueList->next();













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        } else if (valueList->size() > 1) {













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            // create list of values













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            // currently accepts only <integer>/<integer>













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            CSSValueList* list = new CSSValueList();













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            Value* value = 0;













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            bool isValid = true;













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            while ((value = valueList->current()) && isValid) {













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                if (value->unit == Value::Operator && value->iValue == '/')













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                    list->append(new CSSPrimitiveValue("/", CSSPrimitiveValue::CSS_STRING));













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                else if (value->unit == CSSPrimitiveValue::CSS_NUMBER)













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                    list->append(new CSSPrimitiveValue(value->fValue, CSSPrimitiveValue::CSS_NUMBER));













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                else













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                    isValid = false;













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                value = valueList->next();













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            }













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            if (isValid)













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                m_value = list;













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            else













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                delete list;













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        }













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    }













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}













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MediaQueryExp::~MediaQueryExp()













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{













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    delete m_value;













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}













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} // namespace















FCL/sf/mw/web