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diff --git a/src/widgets/messageviewerdialog.cpp b/src/widgets/messageviewerdialog.cpp
index b429c18..ee89ce7 100644
--- a/src/widgets/messageviewerdialog.cpp
+++ b/src/widgets/messageviewerdialog.cpp
@@ -1,366 +1,365 @@
// SPDX-FileCopyrightText: 2023 g10 Code GmbH
// SPDX-FileContributor: Carl Schwan <carl.schwan@gnupg.com>
// SPDX-License-Identifier: GPL-2.0-or-later
#include "messageviewerdialog.h"
#include "messageviewer.h"
-#include "mimetreeparser_widgets_debug.h"
#include <MimeTreeParserCore/CryptoHelper>
#include <MimeTreeParserCore/FileOpener>
#include <KLocalizedString>
#include <KMessageBox>
#include <KMessageWidget>
#include <QDialogButtonBox>
#include <QFileDialog>
#include <QMenuBar>
#include <QPainter>
#include <QPrintDialog>
#include <QPrintPreviewDialog>
#include <QPrinter>
#include <QPushButton>
#include <QRegularExpression>
#include <QSaveFile>
#include <QStandardPaths>
#include <QStyle>
#include <QToolBar>
#include <QVBoxLayout>
using namespace MimeTreeParser::Widgets;
namespace
{
inline QString changeExtension(const QString &fileName, const QString &extension)
{
auto renamedFileName = fileName;
renamedFileName.replace(QRegularExpression(QStringLiteral("\\.(mbox|p7m|asc)$")), extension);
// In case the file name didn't contain any of the expected extension: mbox, p7m, asc and eml
// or doesn't contains an extension at all.
if (!renamedFileName.endsWith(extension)) {
renamedFileName += extension;
}
return renamedFileName;
}
#define SLASHES "/\\"
inline QString changeFileName(const QString &fileName, const QString &subject)
{
if (subject.isEmpty()) {
return fileName;
}
if (fileName.isEmpty()) {
return subject;
}
auto cleanedSubject = subject;
static const char notAllowedChars[] = ",^@={}[]~!?:&*\"|#%<>$\"'();`'/\\.";
static const char *notAllowedSubStrings[] = {"..", " "};
for (const char *c = notAllowedChars; *c; c++) {
cleanedSubject.replace(QLatin1Char(*c), QStringLiteral(" "));
}
const int notAllowedSubStringCount = sizeof(notAllowedSubStrings) / sizeof(const char *);
for (int s = 0; s < notAllowedSubStringCount; s++) {
const QLatin1StringView notAllowedSubString(notAllowedSubStrings[s]);
cleanedSubject.replace(notAllowedSubString, QStringLiteral(" "));
}
QStringList splitedFileName = fileName.split(QLatin1Char('/'));
splitedFileName[splitedFileName.count() - 1] = cleanedSubject;
return splitedFileName.join(QLatin1Char('/'));
}
}
class MessageViewerDialog::Private
{
public:
Private(MessageViewerDialog *dialog)
: q(dialog)
{
}
MessageViewerDialog *const q;
int currentIndex = 0;
QList<KMime::Message::Ptr> messages;
QString fileName;
MimeTreeParser::Widgets::MessageViewer *messageViewer = nullptr;
QAction *nextAction = nullptr;
QAction *previousAction = nullptr;
QToolBar *toolBar = nullptr;
void setCurrentIndex(int currentIndex);
QMenuBar *createMenuBar(QWidget *parent);
private:
void save(QWidget *parent);
void saveDecrypted(QWidget *parent);
void print(QWidget *parent);
void printPreview(QWidget *parent);
void printInternal(QPrinter *printer);
};
void MessageViewerDialog::Private::setCurrentIndex(int index)
{
Q_ASSERT(index >= 0);
Q_ASSERT(index < messages.count());
currentIndex = index;
messageViewer->setMessage(messages[currentIndex]);
q->setWindowTitle(messageViewer->subject());
previousAction->setEnabled(currentIndex != 0);
nextAction->setEnabled(currentIndex != messages.count() - 1);
}
QMenuBar *MessageViewerDialog::Private::createMenuBar(QWidget *parent)
{
const auto menuBar = new QMenuBar(parent);
// File menu
const auto fileMenu = menuBar->addMenu(i18nc("@action:inmenu", "&File"));
const auto saveAction = new QAction(QIcon::fromTheme(QStringLiteral("document-save")), i18nc("@action:inmenu", "&Save"));
QObject::connect(saveAction, &QAction::triggered, parent, [parent, this] {
save(parent);
});
fileMenu->addAction(saveAction);
const auto saveDecryptedAction = new QAction(QIcon::fromTheme(QStringLiteral("document-save")), i18nc("@action:inmenu", "Save Decrypted"));
QObject::connect(saveDecryptedAction, &QAction::triggered, parent, [parent, this] {
saveDecrypted(parent);
});
fileMenu->addAction(saveDecryptedAction);
const auto printPreviewAction = new QAction(QIcon::fromTheme(QStringLiteral("document-print-preview")), i18nc("@action:inmenu", "Print Preview"));
QObject::connect(printPreviewAction, &QAction::triggered, parent, [parent, this] {
printPreview(parent);
});
fileMenu->addAction(printPreviewAction);
const auto printAction = new QAction(QIcon::fromTheme(QStringLiteral("document-print")), i18nc("@action:inmenu", "&Print"));
QObject::connect(printAction, &QAction::triggered, parent, [parent, this] {
print(parent);
});
fileMenu->addAction(printAction);
// Navigation menu
const auto navigationMenu = menuBar->addMenu(i18nc("@action:inmenu", "&Navigation"));
previousAction = new QAction(QIcon::fromTheme(QStringLiteral("go-previous")), i18nc("@action:button Previous email", "Previous Message"), parent);
previousAction->setEnabled(false);
navigationMenu->addAction(previousAction);
nextAction = new QAction(QIcon::fromTheme(QStringLiteral("go-next")), i18nc("@action:button Next email", "Next Message"), parent);
nextAction->setEnabled(false);
navigationMenu->addAction(nextAction);
return menuBar;
}
void MessageViewerDialog::Private::save(QWidget *parent)
{
QString extension;
QString alternatives;
auto message = messages[currentIndex];
bool wasEncrypted = false;
GpgME::Protocol protocol;
auto decryptedMessage = CryptoUtils::decryptMessage(message, wasEncrypted, protocol);
Q_UNUSED(decryptedMessage); // we save the message without modifying it
if (wasEncrypted) {
extension = QStringLiteral(".mime");
if (protocol == GpgME::OpenPGP) {
alternatives = i18nc("File dialog accepted files", "Email files (*.eml *.mbox *.mime)");
} else {
alternatives = i18nc("File dialog accepted files", "Encrypted S/MIME files (*.p7m)");
}
} else {
extension = QStringLiteral(".eml");
alternatives = i18nc("File dialog accepted files", "Email files (*.eml *.mbox *.mime)");
}
const QString location = QFileDialog::getSaveFileName(parent,
i18nc("@title:window", "Save File"),
changeExtension(changeFileName(fileName, messageViewer->subject()), extension),
alternatives);
QSaveFile file(location);
if (!file.open(QIODevice::WriteOnly)) {
KMessageBox::error(parent, i18n("File %1 could not be created.", location), i18n("Error saving message"));
return;
}
file.write(messages[currentIndex]->encodedContent());
file.commit();
}
void MessageViewerDialog::Private::saveDecrypted(QWidget *parent)
{
const QString location = QFileDialog::getSaveFileName(parent,
i18nc("@title:window", "Save Decrypted File"),
changeExtension(changeFileName(fileName, messageViewer->subject()), QStringLiteral(".eml")),
i18nc("File dialog accepted files", "Email files (*.eml *.mbox *.mime)"));
QSaveFile file(location);
if (!file.open(QIODevice::WriteOnly)) {
KMessageBox::error(parent, i18nc("Error message", "File %1 could not be created.", location), i18n("Error saving message"));
return;
}
auto message = messages[currentIndex];
bool wasEncrypted = false;
GpgME::Protocol protocol;
auto decryptedMessage = CryptoUtils::decryptMessage(message, wasEncrypted, protocol);
if (!wasEncrypted) {
decryptedMessage = message;
}
file.write(decryptedMessage->encodedContent());
file.commit();
}
void MessageViewerDialog::Private::print(QWidget *parent)
{
QPrinter printer;
QPrintDialog dialog(&printer, parent);
dialog.setWindowTitle(i18nc("@title:window", "Print Document"));
if (dialog.exec() != QDialog::Accepted)
return;
printInternal(&printer);
}
void MessageViewerDialog::Private::printPreview(QWidget *parent)
{
auto dialog = new QPrintPreviewDialog(parent);
dialog->setAttribute(Qt::WA_DeleteOnClose);
dialog->resize(800, 750);
dialog->setWindowTitle(i18nc("@title:window", "Print Document"));
QObject::connect(dialog, &QPrintPreviewDialog::paintRequested, parent, [this](QPrinter *printer) {
printInternal(printer);
});
dialog->open();
}
void MessageViewerDialog::Private::printInternal(QPrinter *printer)
{
QPainter painter;
painter.begin(printer);
const auto pageLayout = printer->pageLayout();
const auto pageRect = pageLayout.paintRectPixels(printer->resolution());
const double xscale = pageRect.width() / double(messageViewer->width());
const double yscale = pageRect.height() / double(messageViewer->height());
const double scale = qMin(qMin(xscale, yscale), 1.);
painter.translate(pageRect.x(), pageRect.y());
painter.scale(scale, scale);
messageViewer->print(&painter, pageRect.width());
}
MessageViewerDialog::MessageViewerDialog(const QList<KMime::Message::Ptr> &messages, QWidget *parent)
: QDialog(parent)
, d(std::make_unique<Private>(this))
{
d->messages += messages;
initGUI();
}
MessageViewerDialog::MessageViewerDialog(const QString &fileName, QWidget *parent)
: QDialog(parent)
, d(std::make_unique<Private>(this))
{
d->fileName = fileName;
d->messages += MimeTreeParser::Core::FileOpener::openFile(fileName);
initGUI();
}
void MessageViewerDialog::initGUI()
{
const auto mainLayout = new QVBoxLayout(this);
mainLayout->setContentsMargins({});
mainLayout->setSpacing(0);
const auto layout = new QVBoxLayout;
const auto menuBar = d->createMenuBar(this);
mainLayout->setMenuBar(menuBar);
if (d->messages.isEmpty()) {
auto errorMessage = new KMessageWidget(this);
errorMessage->setMessageType(KMessageWidget::Error);
errorMessage->setText(i18nc("@info", "Unable to read file"));
layout->addWidget(errorMessage);
return;
}
const bool multipleMessages = d->messages.length() > 1;
d->toolBar = new QToolBar(this);
if (multipleMessages) {
#ifdef Q_OS_UNIX
d->toolBar->setToolButtonStyle(Qt::ToolButtonFollowStyle);
#else
// on other platforms the default is IconOnly which is bad for
// accessibility and can't be changed by the user.
d->toolBar->setToolButtonStyle(Qt::ToolButtonTextBesideIcon);
#endif
d->toolBar->addAction(d->previousAction);
connect(d->previousAction, &QAction::triggered, this, [this] {
d->setCurrentIndex(d->currentIndex - 1);
});
const auto spacer = new QWidget(this);
spacer->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Expanding);
d->toolBar->addWidget(spacer);
d->toolBar->addAction(d->nextAction);
connect(d->nextAction, &QAction::triggered, this, [this] {
d->setCurrentIndex(d->currentIndex + 1);
});
d->nextAction->setEnabled(true);
mainLayout->addWidget(d->toolBar);
} else {
mainLayout->addWidget(d->toolBar);
d->toolBar->hide();
}
mainLayout->addLayout(layout);
d->messageViewer = new MimeTreeParser::Widgets::MessageViewer(this);
d->messageViewer->setMessage(d->messages[0]);
setWindowTitle(d->messageViewer->subject());
layout->addWidget(d->messageViewer);
auto buttonBox = new QDialogButtonBox(this);
buttonBox->setContentsMargins(style()->pixelMetric(QStyle::PM_LayoutLeftMargin, nullptr, this),
style()->pixelMetric(QStyle::PM_LayoutTopMargin, nullptr, this),
style()->pixelMetric(QStyle::PM_LayoutRightMargin, nullptr, this),
style()->pixelMetric(QStyle::PM_LayoutBottomMargin, nullptr, this));
auto closeButton = buttonBox->addButton(QDialogButtonBox::Close);
connect(closeButton, &QPushButton::pressed, this, &QDialog::accept);
layout->addWidget(buttonBox);
setMinimumSize(300, 300);
resize(600, 600);
}
MessageViewerDialog::~MessageViewerDialog() = default;
QToolBar *MessageViewerDialog::toolBar() const
{
return d->toolBar;
}
QList<KMime::Message::Ptr> MessageViewerDialog::messages() const
{
return d->messages;
}
#include "moc_messageviewerdialog.cpp"

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