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      1 /*
      2  * Copyright (C) 2004, 2005, 2007 Nikolas Zimmermann <zimmermann (at) kde.org>
      3  * Copyright (C) 2004, 2005 Rob Buis <buis (at) kde.org>
      4  *
      5  * This library is free software; you can redistribute it and/or
      6  * modify it under the terms of the GNU Library General Public
      7  * License as published by the Free Software Foundation; either
      8  * version 2 of the License, or (at your option) any later version.
      9  *
     10  * This library is distributed in the hope that it will be useful,
     11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
     12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
     13  * Library General Public License for more details.
     14  *
     15  * You should have received a copy of the GNU Library General Public License
     16  * along with this library; see the file COPYING.LIB.  If not, write to
     17  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
     18  * Boston, MA 02110-1301, USA.
     19  */
     20 
     21 #include "config.h"
     22 
     23 #include "core/svg/SVGFETileElement.h"
     24 
     25 #include "core/SVGNames.h"
     26 #include "platform/graphics/filters/FilterEffect.h"
     27 #include "core/svg/graphics/filters/SVGFilterBuilder.h"
     28 
     29 namespace blink {
     30 
     31 inline SVGFETileElement::SVGFETileElement(Document& document)
     32     : SVGFilterPrimitiveStandardAttributes(SVGNames::feTileTag, document)
     33     , m_in1(SVGAnimatedString::create(this, SVGNames::inAttr, SVGString::create()))
     34 {
     35     addToPropertyMap(m_in1);
     36 }
     37 
     38 DEFINE_NODE_FACTORY(SVGFETileElement)
     39 
     40 bool SVGFETileElement::isSupportedAttribute(const QualifiedName& attrName)
     41 {
     42     DEFINE_STATIC_LOCAL(HashSet<QualifiedName>, supportedAttributes, ());
     43     if (supportedAttributes.isEmpty())
     44         supportedAttributes.add(SVGNames::inAttr);
     45     return supportedAttributes.contains<SVGAttributeHashTranslator>(attrName);
     46 }
     47 
     48 void SVGFETileElement::parseAttribute(const QualifiedName& name, const AtomicString& value)
     49 {
     50     if (!isSupportedAttribute(name)) {
     51         SVGFilterPrimitiveStandardAttributes::parseAttribute(name, value);
     52         return;
     53     }
     54 
     55     SVGParsingError parseError = NoError;
     56 
     57     if (name == SVGNames::inAttr)
     58         m_in1->setBaseValueAsString(value, parseError);
     59     else
     60         ASSERT_NOT_REACHED();
     61 
     62     reportAttributeParsingError(parseError, name, value);
     63 }
     64 
     65 void SVGFETileElement::svgAttributeChanged(const QualifiedName& attrName)
     66 {
     67     if (!isSupportedAttribute(attrName)) {
     68         SVGFilterPrimitiveStandardAttributes::svgAttributeChanged(attrName);
     69         return;
     70     }
     71 
     72     SVGElement::InvalidationGuard invalidationGuard(this);
     73 
     74     if (attrName == SVGNames::inAttr) {
     75         invalidate();
     76         return;
     77     }
     78 
     79     ASSERT_NOT_REACHED();
     80 }
     81 
     82 PassRefPtr<FilterEffect> SVGFETileElement::build(SVGFilterBuilder* filterBuilder, Filter* filter)
     83 {
     84     FilterEffect* input1 = filterBuilder->getEffectById(AtomicString(m_in1->currentValue()->value()));
     85 
     86     if (!input1)
     87         return nullptr;
     88 
     89     RefPtr<FilterEffect> effect = FETile::create(filter);
     90     effect->inputEffects().append(input1);
     91     return effect.release();
     92 }
     93 
     94 }
     95