// RootElement.cpp
//
// written by: PJ Arends
// License Ms-PL
#include "stdafx.h"
#include "RootElement.h"
using namespace Elmax;
#include <boost/Filesystem.hpp>
using namespace boost::filesystem;
bool RootElement::LoadFile(const std::wstring &FilePath)
{
bool retval = false;
UnloadFile();
HRESULT hr = m_ptrDoc.CreateInstance(__uuidof(MSXML2::DOMDocument30));
#ifdef _DEBUG
if (hr == CO_E_NOTINITIALIZED)
{
throw std::exception("CoInitialize has not been called for this thread");
}
#endif
if (SUCCEEDED(hr))
{
path Path(FilePath);
if (exists(Path) && is_regular_file(Path))
{ // Open existing file
variant_t varFile(FilePath.c_str());
// load will fail if the file has malformed xml
if (m_ptrDoc->load(varFile) == VARIANT_TRUE)
{
SetConverter(REGEX_CONV);
SetDomDoc(m_ptrDoc);
m_FilePath = FilePath;
retval = true;
}
}
else
{
// create an empty document
// these methods should not fail so don't inspect result
m_ptrDoc->async = VARIANT_FALSE;
m_ptrDoc->validateOnParse = VARIANT_FALSE;
m_ptrDoc->resolveExternals = VARIANT_FALSE;
//MSXML2::IXMLDOMProcessingInstructionPtr pi = m_pDoc->createProcessingInstruction(L"xml", L" version='1.0' encoding='UTF-8'");
//m_pDoc->appendChild(pi);
m_FilePath = FilePath;
retval = true;
}
}
return retval;
}
bool RootElement::CanWriteFile(const std::wstring& FilePath, bool OverWrite, bool CreateFolder)
{
path Path(FilePath);
if (exists(Path))
{
if (is_regular_file(Path))
{
return OverWrite;
}
return false;
}
path Folder = Path.parent_path();
if (exists(Folder))
{
return true;
}
if (CreateFolder)
{
return create_directories(Folder);
}
return false;
}
bool RootElement::SaveFile(const std::wstring& FilePath, bool OverWrite, bool CreateFolder)
{
if (NULL == m_ptrDoc)
{
return false;
}
if (!FilePath.empty())
{
m_FilePath = FilePath;
}
if (CanWriteFile(m_FilePath, OverWrite, CreateFolder))
{
variant_t varFile(m_FilePath.c_str());
Elmax::Document doc(m_ptrDoc);
return doc.PrettySave(m_FilePath, L"1.0", true);
}
return false;
}
bool RootElement::UnloadFile()
{
m_ptrDoc = NULL; // calls Release() for us
m_FilePath.clear();
return true;
}
RootElement::~RootElement()
{
UnloadFile();
}
RootElement& RootElement::operator = (const RootElement &other)
{
UnloadFile();
m_ptrDoc = other.m_ptrDoc;
m_FilePath = other.m_FilePath;
return *this;
}
bool RootElement::SetFilePath(std::wstring FilePath)
{
if (NULL == m_ptrDoc)
{
return false;
}
m_FilePath = FilePath;
return true;
}
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