diff options
Diffstat (limited to 'shell/source/win32/shlxthandler/infotips/infotips.cxx')
| -rw-r--r-- | shell/source/win32/shlxthandler/infotips/infotips.cxx | 365 |
1 files changed, 365 insertions, 0 deletions
diff --git a/shell/source/win32/shlxthandler/infotips/infotips.cxx b/shell/source/win32/shlxthandler/infotips/infotips.cxx new file mode 100644 index 000000000..af03f4a32 --- /dev/null +++ b/shell/source/win32/shlxthandler/infotips/infotips.cxx @@ -0,0 +1,365 @@ +/* -*- 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(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. +*/ +static 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. +*/ +static 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. +*/ +static 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. +*/ +static std::wstring getFileSizeInfo(wchar_t const * FileName) +{ + DWORD dwSize=getSizeOfFile(FileName); + if (dwSize != INVALID_FILE_SIZE) + return formatSizeOfFile( dwSize ); + + return EMPTY_STRING; +} + + +// IQueryInfo methods + + +COM_DECLSPEC_NOTHROW HRESULT STDMETHODCALLTYPE CInfoTip::GetInfoTip(DWORD /*dwFlags*/, PWSTR* 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; +} + + +COM_DECLSPEC_NOTHROW HRESULT STDMETHODCALLTYPE CInfoTip::GetInfoFlags(DWORD * /*pdwFlags*/ ) +{ + return E_NOTIMPL; +} + + +// IPersist methods + + +HRESULT STDMETHODCALLTYPE CInfoTip::GetClassID(CLSID* pClassID) +{ + *pClassID = 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: */ |