Issue #159: Renaming applications

Pdf4QtLibGui/pdfsendmail.cpp

@@ -0,0 +1,116 @@
+//    Copyright (C) 2019-2022 Jakub Melka
+//
+//    This file is part of PDF4QT.
+//
+//    PDF4QT is free software: you can redistribute it and/or modify
+//    it under the terms of the GNU Lesser General Public License as published by
+//    the Free Software Foundation, either version 3 of the License, or
+//    with the written consent of the copyright owner, any later version.
+//
+//    PDF4QT is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+//    GNU Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public License
+//    along with PDF4QT.  If not, see <https://www.gnu.org/licenses/>.
+
+#include "pdfsendmail.h"
+
+#include <QDir>
+#include <QWidget>
+#include <QFileInfo>
+
+#include "pdfdbgheap.h"
+
+#ifdef Q_OS_WIN
+#include <Windows.h>
+#include <MAPI.h>
+#include <string>
+#endif
+
+namespace pdfviewer
+{
+
+bool PDFSendMail::sendMail(QWidget* parent, QString subject, QString fileName)
+{
+#ifdef Q_OS_WIN
+
+#if !defined(PDF4QT_COMPILER_MINGW)
+    QFileInfo fileInfo(fileName);
+    std::wstring subjectString = subject.toStdWString();
+    std::wstring fileNameString = fileInfo.fileName().toStdWString();
+    std::wstring filePathString = QDir::toNativeSeparators(fileInfo.absoluteFilePath()).toStdWString();
+
+    std::array<wchar_t, MAX_PATH> systemDirectoryBuffer = { };
+    if (!::GetSystemDirectoryW(systemDirectoryBuffer.data(), uint(systemDirectoryBuffer.size())))
+    {
+        return false;
+    }
+
+    QString systemDirectory = QString::fromWCharArray(systemDirectoryBuffer.data());
+    QString mapiDllPath = QString("%1\\MAPI32.dll").arg(systemDirectory);
+    QFileInfo mapiDllPathInfo(mapiDllPath);
+    QString mapiDllPathCorrected = mapiDllPathInfo.absoluteFilePath();
+
+    std::vector<wchar_t> mapiDllPathWchar(mapiDllPathCorrected.size() + 1);
+    qsizetype length = mapiDllPathCorrected.toWCharArray(mapiDllPathWchar.data());
+    mapiDllPathWchar[length] = 0;
+
+    HMODULE mapiLib = ::LoadLibraryW(mapiDllPathWchar.data());
+    if (!mapiLib)
+    {
+        return false;
+    }
+
+    LPMAPISENDMAILW SendMail;
+    SendMail = (LPMAPISENDMAILW)GetProcAddress(mapiLib, "MAPISendMailW");
+    if (!SendMail)
+    {
+        ::FreeLibrary(mapiLib);
+        return false;
+    }
+
+    // Jakub Melka: now, we have function for mail sending, we can use it!
+    // First, we must fill the info structures.
+    MapiFileDescW fileDesc;
+    ::ZeroMemory(&fileDesc, sizeof(fileDesc));
+
+    fileDesc.nPosition = ULONG(-1);
+    fileDesc.lpszFileName = const_cast<PWSTR>(fileNameString.c_str());
+    fileDesc.lpszPathName = const_cast<PWSTR>(filePathString.c_str());
+
+    MapiMessageW message;
+    ::ZeroMemory(&message, sizeof(message));
+
+    message.lpszSubject = const_cast<PWSTR>(subjectString.c_str());
+    message.nFileCount = 1;
+    message.lpFiles = &fileDesc;
+
+    const int returnCode = SendMail(0, parent->winId(), &message, MAPI_LOGON_UI | MAPI_DIALOG, 0);
+
+    ::FreeLibrary(mapiLib);
+
+    switch (returnCode)
+    {
+        case SUCCESS_SUCCESS:
+        case MAPI_USER_ABORT:
+        case MAPI_E_LOGIN_FAILURE:
+            return true;
+
+        default:
+            return false;
+    }
+#endif
+
+    return false;
+#elif defined(Q_OS_UNIX)
+    // TODO
+    return false;
+#else
+    static_assert(false, "Implement this for another OS!");
+    return false;
+#endif
+}
+
+}   // namespace pdfviewer