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      1 /*
      2  * Copyright (C) 2007 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 #include <util/xml/XMLElementImpl.h>
     17 #include <util/domcore/TextImpl.h>
     18 
     19 /** see XMLElementImpl.h */
     20 XMLElementImpl::XMLElementImpl(const DOMString *tag)
     21 {
     22     if (tag)
     23     {
     24         mTagName = *tag;
     25     }
     26 }
     27 
     28 /** see XMLElementImpl.h */
     29 XMLElementImpl::~XMLElementImpl()
     30 {
     31 }
     32 
     33 /** see XMLElementImpl.h */
     34 const DOMString* XMLElementImpl::getTagName() const
     35 {
     36     return &mTagName;
     37 }
     38 
     39 /** see XMLElementImpl.h */
     40 void XMLElementImpl::setAttribute(const DOMString* name, const DOMString* value)
     41                                   throw (DOMException)
     42 {
     43     if (name && value)
     44     {
     45         mAttributeMap[*name] = *value;
     46     }
     47 }
     48 
     49 /** see XMLElementImpl.h */
     50 void XMLElementImpl::removeAttribute(const DOMString* name) throw (DOMException)
     51 {
     52     if (name)
     53     {
     54        mAttributeMap.erase(*name);
     55     }
     56 }
     57 
     58 /** see XMLElementImpl.h */
     59 const DOMString* XMLElementImpl::getAttribute(const DOMString* name) const
     60 {
     61     if (name)
     62     {
     63         DOMStringMap::const_iterator pos = mAttributeMap.find(*name);
     64 
     65         if (pos != mAttributeMap.end())
     66         {
     67            return &(pos->second);
     68         }
     69 
     70     }
     71     return NULL;
     72 }
     73 
     74 /** see XMLElementImpl.h */
     75 bool XMLElementImpl::hasAttributes() const
     76 {
     77     return !mAttributeMap.empty();
     78 }
     79 
     80 /** see XMLElementImpl.h */
     81 const DOMStringMap* XMLElementImpl::getAttributeMap() const
     82 {
     83     return &mAttributeMap;
     84 }
     85 
     86 /** see XMLElementImpl.h */
     87 const NodeImpl* XMLElementImpl::findSoloChildNode(const char* tag) const
     88 {
     89     if (NULL == tag)
     90     {
     91         return NULL;
     92     }
     93 
     94     string token;
     95     NodeListImpl *nodeList = NULL;
     96     const NodeImpl *childNode = NULL;
     97 
     98     token.assign(tag);
     99     nodeList = getElementsByTagName(&token);
    100 
    101     if (nodeList->getLength() > 0)
    102     {
    103          childNode = nodeList->item(0);
    104     }
    105 
    106     return childNode;
    107 }
    108 
    109 /** see XMLElementImpl.h */
    110 const string* XMLElementImpl::getSoloText(const char* tag) const
    111 {
    112     const NodeImpl *textNode = this->findSoloChildNode(tag);
    113 
    114     if (textNode)
    115     {
    116         textNode = textNode->getFirstChild();
    117         if (textNode)
    118         {
    119             return static_cast<const TextImpl*>(textNode)->getData();
    120         }
    121     }
    122 
    123     return NULL;
    124 }
    125 
    126 /** see XMLElementImpl.h */
    127 const XMLElementImpl* XMLElementImpl::getSoloElement(const char* tag) const
    128 {
    129     const NodeImpl *node = findSoloChildNode(tag);
    130     if (node)
    131     {
    132         return static_cast<const XMLElementImpl*>(node);
    133     }
    134 
    135     return NULL;
    136 }
    137