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// TempActions.cpp: implementation of the CEncryptActions class.
//
//////////////////////////////////////////////////////////////////////
#include "stdafx.h"
#include "TempActions.h"
#include "resource.h"
#include <appmisc.h>
//////////////////////////////////////////////////////////////////////
// Construction/Destruction
//////////////////////////////////////////////////////////////////////
bool CTempActions::DeletePrepare::Do(CActionEngine* pEngine,
HWND hwndUpdates)
{
ASSERT(pEngine != NULL);
// Need to create another array for the folders
// since they need to pushed on backwards after the files
// so we don't get "Folder not empty" errors
action_array aFolders;
Update(hwndUpdates, _T("Preparing to clear Temp Folder..."));
file_iterator fileIter(m_tempFolder, file_iterator::sub_folders | file_iterator::full_paths), end;
for( ; fileIter != end; fileIter++)
{
file_path srcFile(fileIter->cFileName);
CAction* pAction;
if(srcFile.attributes() & FILE_ATTRIBUTE_DIRECTORY)
{
pAction = new DeleteFolder(srcFile);
aFolders.push_back(pAction);
}
else
{
pAction = new DeleteFile(srcFile);
pEngine->Add(pAction);
}
}
while(!aFolders.empty())
{
pEngine->Add(aFolders.back());
aFolders.pop_back();
}
// Error from file_iterator (listing folders)
if(fileIter.state() != ERROR_SUCCESS)
throw CActionError(HRESULT_FROM_WIN32(fileIter.state()), IDS_TEMP_ERR_LIST, m_tempFolder);
return false;
}
HRESULT CTempActions::DeletePrepare::Initialize(const file_path& temp_folder)
{
m_tempFolder = temp_folder;
return S_OK;
}
bool CTempActions::DeleteFile::Do(CActionEngine* pEngine,
HWND hwndUpdates)
{
// Update any monitors
Update(hwndUpdates, m_file);
::SetFileAttributes(m_file, FILE_ATTRIBUTE_NORMAL);
try
{
if(!::DeleteFile(m_file))
throw CActionError(HRESULT_FROM_WIN32(::GetLastError()), IDS_TEMP_ERR_DELETE, m_file);
}
catch(CActionError& err)
{
// These errors are okay. The file is gone
if(err.m_hRes != HRESULT_FROM_WIN32(ERROR_FILE_NOT_FOUND) &&
err.m_hRes != HRESULT_FROM_WIN32(ERROR_PATH_NOT_FOUND))
throw;
}
return false;
}
bool CTempActions::DeleteFile::IsFixable(HRESULT hr) const
{
return (hr == HRESULT_FROM_WIN32(ERROR_SHARING_VIOLATION) ||
hr == HRESULT_FROM_WIN32(ERROR_LOCK_VIOLATION) ||
hr == HRESULT_FROM_WIN32(ERROR_FILE_NOT_FOUND) ||
hr == HRESULT_FROM_WIN32(ERROR_PATH_NOT_FOUND));
}
void CTempActions::DeleteFile::Fix(HRESULT hr)
{
bool bFirst = true;
start:
if(IsFixable(hr))
{
try
{
// Try again
Do(NULL, NULL);
return;
}
catch(CActionError& err)
{
// If it's the first around and the error is the same...
if(bFirst && IsFixable(err.m_hRes))
{
// ... Prompt user to close programs
MessageBox(NULL, _T("Many programs keep files in the temp folder. These files cannot be deleted while the program is open. Close all other programs and then click the OK button."), _T("Empty Temp Folder"), MB_OK | MB_ICONINFORMATION);
bFirst = false;
}
// Otherwise out with the error
else
throw;
}
}
goto start;
}
bool CTempActions::DeleteFolder::Do(CActionEngine* pEngine,
HWND hwndUpdates)
{
// Update any monitors
Update(hwndUpdates, m_folder);
if(!::RemoveDirectory(m_folder))
{
DWORD dwError = ::GetLastError();
// This error will be accompanied by another file error
// so we don't need to show it
if(dwError != ERROR_DIR_NOT_EMPTY)
throw CActionError(HRESULT_FROM_WIN32(::GetLastError()), IDS_TEMP_ERR_DELETE, m_folder);
}
return false;
}
void CTempActions::DeleteFolder::Fix(HRESULT hr)
{
}
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