Home | History | Annotate | Download | only in wml 
      1 /*
      2  * Copyright (C) 2008 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
      3  *
      4  * This library is free software; you can redistribute it and/or
      5  * modify it under the terms of the GNU Library General Public
      6  * License as published by the Free Software Foundation; either
      7  * version 2 of the License, or (at your option) any later version.
      8  *
      9  * This library is distributed in the hope that it will be useful,
     10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
     11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
     12  * Library General Public License for more details.
     13  *
     14  * You should have received a copy of the GNU Library General Public License
     15  * along with this library; see the file COPYING.LIB.  If not, write to
     16  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
     17  * Boston, MA 02110-1301, USA.
     18  *
     19  */
     20 
     21 #include "config.h"
     22 
     23 #if ENABLE(WML)
     24 #include "WMLElement.h"
     25 
     26 #include "Attribute.h"
     27 #include "CSSPropertyNames.h"
     28 #include "HTMLNames.h"
     29 #include "HTMLParserIdioms.h"
     30 #include "RenderObject.h"
     31 #include "WMLErrorHandling.h"
     32 #include "WMLNames.h"
     33 #include "WMLVariables.h"
     34 
     35 using std::max;
     36 using std::min;
     37 
     38 namespace WebCore {
     39 
     40 using namespace WMLNames;
     41 
     42 WMLElement::WMLElement(const QualifiedName& tagName, Document* document)
     43     : StyledElement(tagName, document, CreateStyledElement)
     44 {
     45 }
     46 
     47 PassRefPtr<WMLElement> WMLElement::create(const QualifiedName& tagName, Document* document)
     48 {
     49     return adoptRef(new WMLElement(tagName, document));
     50 }
     51 
     52 bool WMLElement::mapToEntry(const QualifiedName& attrName, MappedAttributeEntry& result) const
     53 {
     54     if (attrName == HTMLNames::alignAttr) {
     55         result = eUniversal;
     56         return false;
     57     }
     58 
     59     return StyledElement::mapToEntry(attrName, result);
     60 }
     61 
     62 void WMLElement::parseMappedAttribute(Attribute* attr)
     63 {
     64     if (isIdAttributeName(attr->name())
     65         || attr->name() == HTMLNames::classAttr
     66         || attr->name() == HTMLNames::styleAttr)
     67         return StyledElement::parseMappedAttribute(attr);
     68 
     69     if (attr->name() == HTMLNames::alignAttr) {
     70         if (equalIgnoringCase(attr->value(), "middle"))
     71             addCSSProperty(attr, CSSPropertyTextAlign, "center");
     72         else
     73             addCSSProperty(attr, CSSPropertyTextAlign, attr->value());
     74     } else if (attr->name() == HTMLNames::tabindexAttr) {
     75         String indexstring = attr->value();
     76         int tabindex = 0;
     77         if (parseHTMLInteger(indexstring, tabindex)) {
     78             // Clamp tabindex to the range of 'short' to match Firefox's behavior.
     79             setTabIndexExplicitly(max(static_cast<int>(std::numeric_limits<short>::min()), min(tabindex, static_cast<int>(std::numeric_limits<short>::max()))));
     80         }
     81     }
     82 }
     83 
     84 String WMLElement::title() const
     85 {
     86     return parseValueSubstitutingVariableReferences(getAttribute(HTMLNames::titleAttr));
     87 }
     88 
     89 bool WMLElement::rendererIsNeeded(RenderStyle* style)
     90 {
     91     return document()->documentElement() == this || style->display() != NONE;
     92 }
     93 
     94 RenderObject* WMLElement::createRenderer(RenderArena*, RenderStyle* style)
     95 {
     96     return RenderObject::createObject(this, style);
     97 }
     98 
     99 String WMLElement::parseValueSubstitutingVariableReferences(const AtomicString& value, WMLErrorCode defaultErrorCode) const
    100 {
    101     bool isValid = false;
    102     if (!containsVariableReference(value, isValid))
    103         return value;
    104 
    105     if (!isValid) {
    106         reportWMLError(document(), defaultErrorCode);
    107         return String();
    108     }
    109 
    110     return substituteVariableReferences(value, document());
    111 }
    112 
    113 String WMLElement::parseValueForbiddingVariableReferences(const AtomicString& value) const
    114 {
    115     bool isValid = false;
    116     if (containsVariableReference(value, isValid)) {
    117         reportWMLError(document(), WMLErrorInvalidVariableReferenceLocation);
    118         return String();
    119     }
    120 
    121     return value;
    122 }
    123 
    124 }
    125 
    126 #endif
    127