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      1 /*
      2  * Copyright (C) 2006, 2007, 2008 Apple Inc. All rights reserved.
      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 #include "config.h"
     21 #include "JSHTMLOptionsCollection.h"
     22 
     23 #include "ExceptionCode.h"
     24 #include "HTMLNames.h"
     25 #include "HTMLOptionElement.h"
     26 #include "HTMLOptionsCollection.h"
     27 #include "HTMLSelectElement.h"
     28 #include "JSHTMLOptionElement.h"
     29 #include "JSHTMLSelectElement.h"
     30 #include "JSHTMLSelectElementCustom.h"
     31 
     32 #include <wtf/MathExtras.h>
     33 
     34 using namespace JSC;
     35 
     36 namespace WebCore {
     37 
     38 JSValue JSHTMLOptionsCollection::length(ExecState*) const
     39 {
     40     HTMLOptionsCollection* imp = static_cast<HTMLOptionsCollection*>(impl());
     41     return jsNumber(imp->length());
     42 }
     43 
     44 void JSHTMLOptionsCollection::setLength(ExecState* exec, JSValue value)
     45 {
     46     HTMLOptionsCollection* imp = static_cast<HTMLOptionsCollection*>(impl());
     47     ExceptionCode ec = 0;
     48     unsigned newLength = 0;
     49     double lengthValue = value.toNumber(exec);
     50     if (!isnan(lengthValue) && !isinf(lengthValue)) {
     51         if (lengthValue < 0.0)
     52             ec = INDEX_SIZE_ERR;
     53         else if (lengthValue > static_cast<double>(UINT_MAX))
     54             newLength = UINT_MAX;
     55         else
     56             newLength = static_cast<unsigned>(lengthValue);
     57     }
     58     if (!ec)
     59         imp->setLength(newLength, ec);
     60     setDOMException(exec, ec);
     61 }
     62 
     63 void JSHTMLOptionsCollection::indexSetter(ExecState* exec, unsigned index, JSValue value)
     64 {
     65     HTMLOptionsCollection* imp = static_cast<HTMLOptionsCollection*>(impl());
     66     HTMLSelectElement* base = static_cast<HTMLSelectElement*>(imp->base());
     67     selectIndexSetter(base, exec, index, value);
     68 }
     69 
     70 JSValue JSHTMLOptionsCollection::add(ExecState* exec)
     71 {
     72     HTMLOptionsCollection* imp = static_cast<HTMLOptionsCollection*>(impl());
     73     HTMLOptionElement* option = toHTMLOptionElement(exec->argument(0));
     74     ExceptionCode ec = 0;
     75     if (exec->argumentCount() < 2)
     76         imp->add(option, ec);
     77     else {
     78         bool ok;
     79         int index = finiteInt32Value(exec->argument(1), exec, ok);
     80         if (exec->hadException())
     81             return jsUndefined();
     82         if (!ok)
     83             ec = TYPE_MISMATCH_ERR;
     84         else
     85             imp->add(option, index, ec);
     86     }
     87     setDOMException(exec, ec);
     88     return jsUndefined();
     89 }
     90 
     91 JSValue JSHTMLOptionsCollection::remove(ExecState* exec)
     92 {
     93     HTMLOptionsCollection* imp = static_cast<HTMLOptionsCollection*>(impl());
     94     JSHTMLSelectElement* base = static_cast<JSHTMLSelectElement*>(asObject(toJS(exec, globalObject(), imp->base())));
     95     return base->remove(exec);
     96 }
     97 
     98 }
     99