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      1 /*
      2  * Copyright (C) 2004, 2005 Nikolas Zimmermann <zimmermann (at) kde.org>
      3  * Copyright (C) 2004, 2005, 2006, 2007 Rob Buis <buis (at) kde.org>
      4  * Copyright (C) 2006 Apple Inc. All rights reserved.
      5  * Copyright (C) 2009 Cameron McCormack <cam (at) mcc.id.au>
      6  *
      7  * This library is free software; you can redistribute it and/or
      8  * modify it under the terms of the GNU Library General Public
      9  * License as published by the Free Software Foundation; either
     10  * version 2 of the License, or (at your option) any later version.
     11  *
     12  * This library is distributed in the hope that it will be useful,
     13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
     14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
     15  * Library General Public License for more details.
     16  *
     17  * You should have received a copy of the GNU Library General Public License
     18  * along with this library; see the file COPYING.LIB.  If not, write to
     19  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
     20  * Boston, MA 02110-1301, USA.
     21  */
     22 
     23 #include "config.h"
     24 #include "core/svg/SVGStyleElement.h"
     25 
     26 #include "core/MediaTypeNames.h"
     27 #include "core/css/CSSStyleSheet.h"
     28 #include "wtf/StdLibExtras.h"
     29 
     30 namespace blink {
     31 
     32 inline SVGStyleElement::SVGStyleElement(Document& document, bool createdByParser)
     33     : SVGElement(SVGNames::styleTag, document)
     34     , StyleElement(&document, createdByParser)
     35     , m_svgLoadEventTimer(this, &SVGElement::svgLoadEventTimerFired)
     36 {
     37 }
     38 
     39 SVGStyleElement::~SVGStyleElement()
     40 {
     41 #if !ENABLE(OILPAN)
     42     StyleElement::clearDocumentData(document(), this);
     43 #endif
     44 }
     45 
     46 PassRefPtrWillBeRawPtr<SVGStyleElement> SVGStyleElement::create(Document& document, bool createdByParser)
     47 {
     48     return adoptRefWillBeNoop(new SVGStyleElement(document, createdByParser));
     49 }
     50 
     51 bool SVGStyleElement::disabled() const
     52 {
     53     if (!m_sheet)
     54         return false;
     55 
     56     return m_sheet->disabled();
     57 }
     58 
     59 void SVGStyleElement::setDisabled(bool setDisabled)
     60 {
     61     if (CSSStyleSheet* styleSheet = sheet())
     62         styleSheet->setDisabled(setDisabled);
     63 }
     64 
     65 const AtomicString& SVGStyleElement::type() const
     66 {
     67     DEFINE_STATIC_LOCAL(const AtomicString, defaultValue, ("text/css", AtomicString::ConstructFromLiteral));
     68     const AtomicString& n = getAttribute(SVGNames::typeAttr);
     69     return n.isNull() ? defaultValue : n;
     70 }
     71 
     72 void SVGStyleElement::setType(const AtomicString& type)
     73 {
     74     setAttribute(SVGNames::typeAttr, type);
     75 }
     76 
     77 const AtomicString& SVGStyleElement::media() const
     78 {
     79     const AtomicString& n = fastGetAttribute(SVGNames::mediaAttr);
     80     return n.isNull() ? MediaTypeNames::all : n;
     81 }
     82 
     83 void SVGStyleElement::setMedia(const AtomicString& media)
     84 {
     85     setAttribute(SVGNames::mediaAttr, media);
     86 }
     87 
     88 String SVGStyleElement::title() const
     89 {
     90     return fastGetAttribute(SVGNames::titleAttr);
     91 }
     92 
     93 void SVGStyleElement::setTitle(const AtomicString& title)
     94 {
     95     setAttribute(SVGNames::titleAttr, title);
     96 }
     97 
     98 bool SVGStyleElement::isSupportedAttribute(const QualifiedName& attrName)
     99 {
    100     DEFINE_STATIC_LOCAL(HashSet<QualifiedName>, supportedAttributes, ());
    101     if (supportedAttributes.isEmpty())
    102         supportedAttributes.add(SVGNames::titleAttr);
    103     return supportedAttributes.contains<SVGAttributeHashTranslator>(attrName);
    104 }
    105 
    106 void SVGStyleElement::parseAttribute(const QualifiedName& name, const AtomicString& value)
    107 {
    108     if (!isSupportedAttribute(name)) {
    109         SVGElement::parseAttribute(name, value);
    110         return;
    111     }
    112 
    113     if (name == SVGNames::titleAttr) {
    114         if (m_sheet)
    115             m_sheet->setTitle(value);
    116         return;
    117     }
    118 
    119     ASSERT_NOT_REACHED();
    120 }
    121 
    122 void SVGStyleElement::finishParsingChildren()
    123 {
    124     StyleElement::finishParsingChildren(this);
    125     SVGElement::finishParsingChildren();
    126 }
    127 
    128 Node::InsertionNotificationRequest SVGStyleElement::insertedInto(ContainerNode* rootParent)
    129 {
    130     SVGElement::insertedInto(rootParent);
    131     return InsertionShouldCallDidNotifySubtreeInsertions;
    132 }
    133 
    134 void SVGStyleElement::didNotifySubtreeInsertionsToDocument()
    135 {
    136     StyleElement::processStyleSheet(document(), this);
    137 }
    138 
    139 void SVGStyleElement::removedFrom(ContainerNode* rootParent)
    140 {
    141     SVGElement::removedFrom(rootParent);
    142     if (rootParent->inDocument())
    143         StyleElement::removedFromDocument(document(), this);
    144 }
    145 
    146 void SVGStyleElement::childrenChanged(const ChildrenChange& change)
    147 {
    148     SVGElement::childrenChanged(change);
    149     StyleElement::childrenChanged(this);
    150 }
    151 
    152 void SVGStyleElement::trace(Visitor* visitor)
    153 {
    154     StyleElement::trace(visitor);
    155     SVGElement::trace(visitor);
    156 }
    157 
    158 }
    159