/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* This file incorporates work covered by the following license notice:
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed
* with this work for additional information regarding copyright
* ownership. The ASF licenses this file to you under the Apache
* License, Version 2.0 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.apache.org/licenses/LICENSE-2.0 .
*/
#include <global.hxx>
#include <infotips.hxx>
#include <shlxthdl.hxx>
#include <metainforeader.hxx>
#include <contentreader.hxx>
#include <utilities.hxx>
#include <registry.hxx>
#include <fileextensions.hxx>
#include <iso8601_converter.hxx>
#include <config.hxx>
#include <resource.h>
#include <stdio.h>
#include <utility>
#include <stdlib.h>
#define MAX_STRING 80
#define KB 1024.0
const std::wstring WSPACE = std::wstring(SPACE);
CInfoTip::CInfoTip(long RefCnt) :
m_RefCnt(RefCnt)
{
ZeroMemory(m_szFileName, sizeof(m_szFileName));
InterlockedIncrement(&g_DllRefCnt);
}
CInfoTip::~CInfoTip()
{
InterlockedDecrement(&g_DllRefCnt);
}
// IUnknown methods
HRESULT STDMETHODCALLTYPE CInfoTip::QueryInterface(REFIID riid, void __RPC_FAR *__RPC_FAR *ppvObject)
{
*ppvObject = nullptr;
IUnknown* pUnk = nullptr;
if (IID_IUnknown == riid || IID_IQueryInfo == riid)
{
pUnk = static_cast<IQueryInfo*>(this);
pUnk->AddRef();
*ppvObject = pUnk;
return S_OK;
}
else if (IID_IPersistFile == riid)
{
pUnk = static_cast<IPersistFile*>(this);
pUnk->AddRef();
*ppvObject = pUnk;
return S_OK;
}
return E_NOINTERFACE;
}
ULONG STDMETHODCALLTYPE CInfoTip::AddRef()
{
return InterlockedIncrement(&m_RefCnt);
}
ULONG STDMETHODCALLTYPE CInfoTip::Release()
{
long refcnt = InterlockedDecrement(&m_RefCnt);
if (0 == m_RefCnt)
delete this;
return refcnt;
}
//********************helper functions for GetInfoTip functions**********************
/** get file type information from registry.
*/
std::wstring getFileTypeInfo(const std::wstring& file_extension)
{
wchar_t extKeyValue[MAX_STRING];
wchar_t typeKeyValue[MAX_STRING];
::std::wstring sDot(L".");
if (QueryRegistryKey(HKEY_CLASSES_ROOT, sDot.append(file_extension).c_str(), L"", extKeyValue, MAX_STRING))
if (QueryRegistryKey( HKEY_CLASSES_ROOT, extKeyValue, L"",typeKeyValue, MAX_STRING))
return typeKeyValue;
return EMPTY_STRING;
}
/** get file size.
*/
DWORD getSizeOfFile( wchar_t const * FileName )
{
HANDLE hFile = CreateFileW(FileName, // open file
GENERIC_READ, // open for reading
FILE_SHARE_READ|FILE_SHARE_WRITE|FILE_SHARE_DELETE, // share for all operations
nullptr, // no security
OPEN_EXISTING, // existing file only
FILE_ATTRIBUTE_NORMAL, // normal file
nullptr); // no attr. template
if (hFile != INVALID_HANDLE_VALUE)
{
DWORD dwSize = GetFileSize( hFile, nullptr );
CloseHandle( hFile );
return dwSize;
}
return INVALID_FILE_SIZE;
}
/** format file size in to be more readable.
*/
std::wstring formatSizeOfFile( DWORD dwSize )
{
if ( dwSize < 1000 )
{
char buffer[3];
int dFileSize = dwSize;
_itoa( dFileSize, buffer, 10 );
return StringToWString( buffer ).append(StringToWString("B"));
}
char *buffer=nullptr;
int decimal, sign;
double dFileSize = static_cast<double>(dwSize)/KB;
buffer = _fcvt( dFileSize, 1, &decimal, &sign );
::std::wstring wsTemp = StringToWString( buffer );
int pos=decimal % 3;
::std::wstring wsBuffer = wsTemp.substr( 0,pos);
if ( decimal )
for (;decimal - pos > 2;pos += 3)
{
if (pos)
wsBuffer.append(StringToWString(","));
wsBuffer.append( wsTemp.substr( pos, 3) );
}
else
wsBuffer.append(StringToWString("0"));
wsBuffer.append(StringToWString("."));
wsBuffer.append(wsTemp.substr( decimal, wsTemp.size()-decimal ));
wsBuffer.append(StringToWString("KB"));
return wsBuffer;
}
/** get file size information.
*/
std::wstring getFileSizeInfo(wchar_t const * FileName)
{
DWORD dwSize=getSizeOfFile(FileName);
if (dwSize != INVALID_FILE_SIZE)
return formatSizeOfFile( dwSize );
return EMPTY_STRING;
}
// IQueryInfo methods
HRESULT STDMETHODCALLTYPE CInfoTip::GetInfoTip(DWORD /*dwFlags*/, wchar_t** ppwszTip)
{
std::wstring msg;
const std::wstring CONST_SPACE(SPACE);
//display File Type, no matter other info is loaded successfully or not.
std::wstring tmpTypeStr = getFileTypeInfo( get_file_name_extension(m_szFileName) );
if ( tmpTypeStr != EMPTY_STRING )
{
msg += GetResString(IDS_TYPE_COLON) + CONST_SPACE;
msg += tmpTypeStr;
}
try
{
CMetaInfoReader meta_info_accessor(m_szFileName);
//display document title;
if ( meta_info_accessor.getTagData( META_INFO_TITLE ).length() > 0)
{
if ( msg != EMPTY_STRING )
msg += L"\n";
msg += GetResString(IDS_TITLE_COLON) + CONST_SPACE;
msg += meta_info_accessor.getTagData( META_INFO_TITLE );
}
else
{
if ( msg != EMPTY_STRING )
msg += L"\n";
msg += GetResString(IDS_TITLE_COLON) + CONST_SPACE;
msg += m_FileNameOnly;
}
//display document author;
if ( meta_info_accessor.getTagData( META_INFO_AUTHOR ).length() > 0)
{
if ( msg != EMPTY_STRING )
msg += L"\n";
msg += GetResString( IDS_AUTHOR_COLON ) + CONST_SPACE;
msg += meta_info_accessor.getTagData( META_INFO_AUTHOR );
}
//display document subject;
if ( meta_info_accessor.getTagData( META_INFO_SUBJECT ).length() > 0)
{
if ( msg != EMPTY_STRING )
msg += L"\n";
msg += GetResString(IDS_SUBJECT_COLON) + CONST_SPACE;
msg += meta_info_accessor.getTagData( META_INFO_SUBJECT );
}
//display document description;
if ( meta_info_accessor.getTagData( META_INFO_DESCRIPTION ).length() > 0)
{
if ( msg != EMPTY_STRING )
msg += L"\n";
msg += GetResString( IDS_COMMENTS_COLON ) + CONST_SPACE;
msg += meta_info_accessor.getTagData( META_INFO_DESCRIPTION );
}
//display modified time formatted into locale representation.
if ( iso8601_date_to_local_date(meta_info_accessor.getTagData(META_INFO_MODIFIED )).length() > 0)
{
if ( msg != EMPTY_STRING )
msg += L"\n";
msg += GetResString( IDS_MODIFIED_COLON ) + CONST_SPACE;
msg += iso8601_date_to_local_date(meta_info_accessor.getTagData(META_INFO_MODIFIED ));
}
}
catch (const std::exception&)
{
}
//display file size, no matter other information is loaded successfully or not.
std::wstring tmpSizeStr = getFileSizeInfo( m_szFileName );
if ( tmpSizeStr != EMPTY_STRING )
{
msg += L"\n";
msg += GetResString( IDS_SIZE_COLON ) + CONST_SPACE;
msg += tmpSizeStr;
}
//finalize and assign the string.
LPMALLOC lpMalloc;
HRESULT hr = SHGetMalloc(&lpMalloc);
if (SUCCEEDED(hr))
{
size_t len = sizeof(wchar_t) * msg.length() + sizeof(wchar_t);
wchar_t* pMem = static_cast<wchar_t*>(lpMalloc->Alloc(len));
ZeroMemory(pMem, len);
wcscpy_s(pMem, msg.length()+1, msg.c_str());
*ppwszTip = pMem;
lpMalloc->Release();
return S_OK;
}
return E_FAIL;
}
HRESULT STDMETHODCALLTYPE CInfoTip::GetInfoFlags(DWORD * /*pdwFlags*/ )
{
return E_NOTIMPL;
}
// IPersist methods
HRESULT STDMETHODCALLTYPE CInfoTip::GetClassID(CLSID* pClassID)
{
pClassID = const_cast<CLSID*>(&CLSID_INFOTIP_HANDLER);
return S_OK;
}
// IPersistFile methods
HRESULT STDMETHODCALLTYPE CInfoTip::Load(LPCOLESTR pszFileName, DWORD /*dwMode*/)
{
std::wstring fname = pszFileName;
// there must be a '\' and there must even be an
// extension, else we would not have been called
std::wstring::iterator begin = fname.begin() + fname.find_last_of(L"\\") + 1;
std::wstring::iterator end = fname.end();
m_FileNameOnly = std::wstring(begin, end);
fname = getShortPathName( fname );
// ZeroMemory because strncpy doesn't '\0'-terminates the destination
// string; reserve the last place in the buffer for the final '\0'
// that's why '(sizeof(m_szFileName) - 1)'
ZeroMemory(m_szFileName, sizeof(m_szFileName));
wcsncpy(m_szFileName, fname.c_str(), (sizeof(m_szFileName)/sizeof(*m_szFileName) - 1));
return S_OK;
}
HRESULT STDMETHODCALLTYPE CInfoTip::IsDirty()
{
return E_NOTIMPL;
}
HRESULT STDMETHODCALLTYPE CInfoTip::Save(LPCOLESTR /*pszFileName*/, BOOL /*fRemember*/)
{
return E_NOTIMPL;
}
HRESULT STDMETHODCALLTYPE CInfoTip::SaveCompleted(LPCOLESTR /*pszFileName*/)
{
return E_NOTIMPL;
}
HRESULT STDMETHODCALLTYPE CInfoTip::GetCurFile(LPOLESTR __RPC_FAR * /*ppszFileName*/)
{
return E_NOTIMPL;
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
↑ V1001 The 'pClassID' variable is assigned but is not used by the end of the function.