No OneTemporary
Actions

Size

33 KB

Subscribers

None

View Options

	diff --git a/src/core/partmodel.cpp b/src/core/partmodel.cpp
	index bddf40e..949d8b4 100644
	--- a/src/core/partmodel.cpp
	+++ b/src/core/partmodel.cpp
	@@ -1,561 +1,565 @@
	// SPDX-FileCopyrightText: 2016 Sandro Knauß <knauss@kolabsys.com>
	// SPDX-License-Identifier: LGPL-2.0-or-later

	#include "partmodel.h"

	#include "htmlutils.h"
	#include "objecttreeparser.h"

	#include <KLocalizedString>

	#include <QDebug>
	#include <QRegularExpression>
	#include <QStringLiteral>
	#include <QTextDocument>

	// We return a pair containing the trimmed string, as well as a boolean indicating whether the string was trimmed or not
	std::pair<QString, bool> PartModel::trim(const QString &text)
	{
	// The delimiters have <p>.? prefixed including the .? because sometimes we get a byte order mark <feff> (seen with user-agent:
	// Microsoft-MacOutlook/10.1d.0.190908) We match both regulard withspace with \s and non-breaking spaces with \u00A0
	const QList<QRegularExpression> delimiters{
	// English
	QRegularExpression{QStringLiteral("<p>.?-+Original(\\s\|\u00A0)Message-+"), QRegularExpression::CaseInsensitiveOption},
	// The remainder is not quoted
	QRegularExpression{QStringLiteral("<p>.?On.*wrote:"), QRegularExpression::CaseInsensitiveOption},
	// The remainder is quoted
	QRegularExpression{QStringLiteral("> On.*wrote:"), QRegularExpression::CaseInsensitiveOption},

	// German
	// Forwarded
	QRegularExpression{QStringLiteral("<p>.?Von:.*</p>"), QRegularExpression::CaseInsensitiveOption},
	// Reply
	QRegularExpression{QStringLiteral("<p>.?Am.schrieb.:</p>"), QRegularExpression::CaseInsensitiveOption},
	// Signature
	QRegularExpression{QStringLiteral("<p>.?--(\\s\|\u00A0)<br>"), QRegularExpression::CaseInsensitiveOption},
	};

	for (const auto &expression : delimiters) {
	auto i = expression.globalMatch(text);
	while (i.hasNext()) {
	const auto match = i.next();
	const int startOffset = match.capturedStart(0);
	// This is a very simplistic detection for an inline reply where we would have the patterns before the actual message content.
	// We simply ignore anything we find within the first few lines.
	if (startOffset >= 5) {
	return {text.mid(0, startOffset), true};
	} else {
	// Search for the next delimiter
	continue;
	}
	}
	}

	return {text, false};
	}

	static QString addCss(const QString &s)
	{
	// Get the default font from QApplication
	static const QString fontFamily = QFont{}.family();
	// overflow:hidden ensures no scrollbars are ever shown.
	static const QString css = QStringLiteral("<style>\n")
	+ QStringLiteral(
	"body {\n"
	" overflow:hidden;\n"
	" font-family: \"%1\" ! important;\n"
	" color: #31363b ! important;\n"
	" background-color: #fcfcfc ! important\n"
	"}\n")
	.arg(fontFamily)
	+ QStringLiteral("blockquote { \n"
	" border-left: 2px solid #bdc3c7 ! important;\n"
	"}\n")
	+ QStringLiteral("</style>");

	const QString header = QLatin1String(
	"<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.01 Transitional//EN\" \"http://www.w3.org/TR/html4/loose.dtd\">\n"
	"<html><head><title></title>")
	+ css + QLatin1String("</head>\n<body>\n");
	return header + s + QStringLiteral("</body></html>");
	}

	class PartModelPrivate
	{
	public:
	PartModelPrivate(PartModel *q_ptr, const std::shared_ptr<MimeTreeParser::ObjectTreeParser> &parser)
	: q(q_ptr)
	, mParser(parser)
	{
	collectContents();
	}

	~PartModelPrivate() = default;

	void checkPart(const MimeTreeParser::MessagePart::Ptr part)
	{
	mMimeTypeCache[part.data()] = part->mimeType();
	// Extract the content of the part and
	mContents.insert(part.data(), extractContent(part.data()));
	}

	// Recursively find encapsulated messages
	void findEncapsulated(const MimeTreeParser::EncapsulatedRfc822MessagePart::Ptr &e)
	{
	mEncapsulatedParts[e.data()] = mParser->collectContentParts(e);
	for (const auto &subPart : std::as_const(mEncapsulatedParts[e.data()])) {
	checkPart(subPart);
	mParents[subPart.data()] = e.data();
	if (auto encapsulatedSub = subPart.dynamicCast<MimeTreeParser::EncapsulatedRfc822MessagePart>()) {
	findEncapsulated(encapsulatedSub);
	}
	}
	}

	QVariant extractContent(MimeTreeParser::MessagePart *messagePart)
	{
	if (auto alternativePart = dynamic_cast<MimeTreeParser::AlternativeMessagePart *>(messagePart)) {
	if (alternativePart->availableModes().contains(MimeTreeParser::AlternativeMessagePart::MultipartIcal)) {
	return alternativePart->icalContent();
	}
	}

	auto preprocessPlaintext = [&](const QString &text) {
	+ // Reduce consecutive new lines to never exceed 2
	+ auto cleaned = text;
	+ cleaned.replace(QRegularExpression(QStringLiteral("[\n\r]{2,}")), QStringLiteral("\n\n"));
	+
	// We always do rich text (so we get highlighted links and stuff).
	- const auto html = Qt::convertFromPlainText(text, Qt::WhiteSpaceNormal);
	+ const auto html = Qt::convertFromPlainText(cleaned, Qt::WhiteSpaceNormal);
	if (trimMail) {
	const auto result = PartModel::trim(html);
	isTrimmed = result.second;
	Q_EMIT q->trimMailChanged();
	return MimeTreeParser::linkify(result.first);
	}
	return MimeTreeParser::linkify(html);
	};

	if (messagePart->isHtml()) {
	if (dynamic_cast<MimeTreeParser::AlternativeMessagePart *>(messagePart)) {
	containsHtmlAndPlain = true;
	Q_EMIT q->containsHtmlChanged();
	if (!showHtml) {
	return preprocessPlaintext(messagePart->plaintextContent());
	}
	}
	return addCss(mParser->resolveCidLinks(messagePart->htmlContent()));
	}

	if (auto attachmentPart = dynamic_cast<MimeTreeParser::AttachmentMessagePart *>(messagePart)) {
	auto node = attachmentPart->node();
	if (node && mMimeTypeCache[attachmentPart] == "text/calendar") {
	return messagePart->text();
	}
	}

	return preprocessPlaintext(messagePart->text());
	}

	QVariant contentForPart(MimeTreeParser::MessagePart *messagePart) const
	{
	return mContents.value(messagePart);
	}

	void collectContents()
	{
	mEncapsulatedParts.clear();
	mParents.clear();
	mContents.clear();
	containsHtmlAndPlain = false;
	isTrimmed = false;

	const auto parts = mParser->collectContentParts();
	MimeTreeParser::MessagePart::List filteredParts;

	for (const auto &part : parts) {
	const auto contentType = part->node()->contentType();
	if (contentType && contentType->hasParameter(QStringLiteral("protected-headers"))) {
	const auto contentDisposition = part->node()->contentDisposition();
	if (contentDisposition && contentDisposition->disposition() == KMime::Headers::CDinline) {
	continue;
	}
	}
	filteredParts << part;
	}

	for (const auto &part : std::as_const(filteredParts)) {
	checkPart(part);
	if (auto encapsulatedPart = part.dynamicCast<MimeTreeParser::EncapsulatedRfc822MessagePart>()) {
	findEncapsulated(encapsulatedPart);
	}
	}

	for (const auto &part : std::as_const(filteredParts)) {
	if (mMimeTypeCache[part.data()] == "text/calendar") {
	mParts.prepend(part);
	} else {
	mParts.append(part);
	}
	}
	}

	PartModel *q;
	MimeTreeParser::MessagePart::List mParts;
	QHash<MimeTreeParser::MessagePart *, QByteArray> mMimeTypeCache;
	QHash<MimeTreeParser::MessagePart *, MimeTreeParser::MessagePart::List> mEncapsulatedParts;
	QHash<MimeTreeParser::MessagePart , MimeTreeParser::MessagePart > mParents;
	QMap<MimeTreeParser::MessagePart *, QVariant> mContents;
	std::shared_ptr<MimeTreeParser::ObjectTreeParser> mParser;
	bool showHtml{false};
	bool containsHtmlAndPlain{false};
	bool trimMail{false};
	bool isTrimmed{false};
	};

	PartModel::PartModel(std::shared_ptr<MimeTreeParser::ObjectTreeParser> parser)
	: d(std::unique_ptr<PartModelPrivate>(new PartModelPrivate(this, parser)))
	{
	}

	PartModel::~PartModel()
	{
	}

	void PartModel::setShowHtml(bool html)
	{
	if (d->showHtml != html) {
	beginResetModel();
	d->showHtml = html;
	d->collectContents();
	endResetModel();
	Q_EMIT showHtmlChanged();
	}
	}

	bool PartModel::showHtml() const
	{
	return d->showHtml;
	}

	void PartModel::setTrimMail(bool trim)
	{
	if (d->trimMail != trim) {
	beginResetModel();
	d->trimMail = trim;
	d->collectContents();
	endResetModel();
	Q_EMIT trimMailChanged();
	}
	}

	bool PartModel::trimMail() const
	{
	return d->trimMail;
	}

	bool PartModel::isTrimmed() const
	{
	return d->isTrimmed;
	}

	bool PartModel::containsHtml() const
	{
	return d->containsHtmlAndPlain;
	}

	QHash<int, QByteArray> PartModel::roleNames() const
	{
	QHash<int, QByteArray> roles;
	roles[TypeRole] = "type";
	roles[ContentRole] = "content";
	roles[IsEmbeddedRole] = "embedded";
	roles[IsEncryptedRole] = "encrypted";
	roles[IsSignedRole] = "signed";
	roles[SecurityLevelRole] = "securityLevel";
	roles[EncryptionSecurityLevelRole] = "encryptionSecurityLevel";
	roles[SignatureSecurityLevelRole] = "signatureSecurityLevel";
	roles[ErrorType] = "errorType";
	roles[ErrorString] = "errorString";
	roles[IsErrorRole] = "error";
	roles[SenderRole] = "sender";
	roles[SignatureDetails] = "signatureDetails";
	roles[EncryptionDetails] = "encryptionDetails";
	roles[DateRole] = "date";
	return roles;
	}

	QModelIndex PartModel::index(int row, int column, const QModelIndex &parent) const
	{
	if (row < 0 \|\| column != 0) {
	return QModelIndex();
	}
	if (parent.isValid()) {
	const auto part = static_cast<MimeTreeParser::MessagePart *>(parent.internalPointer());
	auto encapsulatedPart = dynamic_cast<MimeTreeParser::EncapsulatedRfc822MessagePart *>(part);

	if (encapsulatedPart) {
	const auto parts = d->mEncapsulatedParts[encapsulatedPart];
	if (row < parts.size()) {
	return createIndex(row, column, parts.at(row).data());
	}
	}
	return QModelIndex();
	}
	if (row < d->mParts.size()) {
	return createIndex(row, column, d->mParts.at(row).data());
	}
	return QModelIndex();
	}

	SignatureInfo encryptionInfo(MimeTreeParser::MessagePart *messagePart)
	{
	SignatureInfo signatureInfo;
	const auto encryptions = messagePart->encryptions();
	if (encryptions.size() > 1) {
	qWarning() << "Can't deal with more than one encryption";
	}
	for (const auto &encryptionPart : encryptions) {
	signatureInfo.keyId = encryptionPart->partMetaData()->keyId;
	signatureInfo.cryptoProto = encryptionPart->cryptoProto();
	signatureInfo.decryptRecipients = encryptionPart->decryptRecipients();
	}
	return signatureInfo;
	};

	SignatureInfo signatureInfo(MimeTreeParser::MessagePart *messagePart)
	{
	SignatureInfo signatureInfo;
	const auto signatures = messagePart->signatures();
	if (signatures.size() > 1) {
	qWarning() << "Can't deal with more than one signature";
	}
	for (const auto &signaturePart : signatures) {
	signatureInfo.keyId = signaturePart->partMetaData()->keyId;
	signatureInfo.cryptoProto = signaturePart->cryptoProto();
	signatureInfo.keyMissing = signaturePart->partMetaData()->sigSummary & GpgME::Signature::KeyMissing;
	signatureInfo.keyExpired = signaturePart->partMetaData()->sigSummary & GpgME::Signature::KeyExpired;
	signatureInfo.keyRevoked = signaturePart->partMetaData()->sigSummary & GpgME::Signature::KeyRevoked;
	signatureInfo.sigExpired = signaturePart->partMetaData()->sigSummary & GpgME::Signature::SigExpired;
	signatureInfo.crlMissing = signaturePart->partMetaData()->sigSummary & GpgME::Signature::CrlMissing;
	signatureInfo.crlTooOld = signaturePart->partMetaData()->sigSummary & GpgME::Signature::CrlTooOld;
	signatureInfo.signer = signaturePart->partMetaData()->signer;
	signatureInfo.isCompliant = signaturePart->partMetaData()->isCompliant;
	signatureInfo.signerMailAddresses = signaturePart->partMetaData()->signerMailAddresses;
	signatureInfo.signatureIsGood = signaturePart->partMetaData()->isGoodSignature;
	signatureInfo.keyTrust = signaturePart->partMetaData()->keyTrust;
	}
	return signatureInfo;
	}

	QVariant PartModel::data(const QModelIndex &index, int role) const
	{
	if (!index.isValid()) {
	return QVariant();
	}

	if (index.internalPointer()) {
	const auto messagePart = static_cast<MimeTreeParser::MessagePart *>(index.internalPointer());
	// qWarning() << "Found message part " << messagePart->metaObject()->className() << messagePart->partMetaData()->status << messagePart->error();
	Q_ASSERT(messagePart);
	switch (role) {
	case Qt::DisplayRole:
	return QStringLiteral("Content%1");
	case SenderRole: {
	if (auto e = dynamic_cast<MimeTreeParser::EncapsulatedRfc822MessagePart *>(messagePart)) {
	return e->from();
	}
	return {};
	}
	case DateRole: {
	if (auto e = dynamic_cast<MimeTreeParser::EncapsulatedRfc822MessagePart *>(messagePart)) {
	return e->date();
	}
	return {};
	}
	case TypeRole: {
	if (messagePart->error()) {
	return QVariant::fromValue(Types::Error);
	}
	if (dynamic_cast<MimeTreeParser::EncapsulatedRfc822MessagePart *>(messagePart)) {
	return QVariant::fromValue(Types::Encapsulated);
	}
	if (auto alternativePart = dynamic_cast<MimeTreeParser::AlternativeMessagePart *>(messagePart)) {
	if (alternativePart->availableModes().contains(MimeTreeParser::AlternativeMessagePart::MultipartIcal)) {
	return QVariant::fromValue(Types::Ical);
	}
	}
	if (auto attachmentPart = dynamic_cast<MimeTreeParser::AttachmentMessagePart *>(messagePart)) {
	auto node = attachmentPart->node();
	if (!node) {
	qWarning() << "no content for attachment";
	return {};
	}
	if (d->mMimeTypeCache[attachmentPart] == "text/calendar") {
	return QVariant::fromValue(Types::Ical);
	}
	}
	if (!d->showHtml && d->containsHtmlAndPlain) {
	return QVariant::fromValue(Types::Plain);
	}
	// For simple html we don't need a browser
	auto complexHtml = [&] {
	if (messagePart->isHtml()) {
	const auto text = messagePart->htmlContent();
	if (text.contains(QStringLiteral("<!DOCTYPE html PUBLIC"))) {
	// We can probably deal with this if it adheres to the strict dtd
	//(that's what our composer produces as well)
	if (!text.contains(QStringLiteral("http://www.w3.org/TR/REC-html40/strict.dtd"))) {
	return true;
	}
	}
	// Blockquotes don't support any styling which would be necessary so they become readable.
	if (text.contains(QStringLiteral("blockquote"))) {
	return true;
	}
	// Media queries are too advanced
	if (text.contains(QStringLiteral("@media"))) {
	return true;
	}
	// auto css properties are not supported e.g margin-left: auto;
	if (text.contains(QStringLiteral(": auto;"))) {
	return true;
	}
	return false;
	} else {
	return false;
	}
	}();
	if (complexHtml) {
	return QVariant::fromValue(Types::Html);
	}
	return QVariant::fromValue(Types::Plain);
	}
	case IsEmbeddedRole:
	return false;
	case IsErrorRole:
	return messagePart->error();
	case ContentRole:
	return d->contentForPart(messagePart);
	case IsEncryptedRole:
	return messagePart->encryptionState() != MimeTreeParser::KMMsgNotEncrypted;
	case IsSignedRole:
	return messagePart->signatureState() != MimeTreeParser::KMMsgNotSigned;
	case SecurityLevelRole: {
	auto signature = messagePart->signatureState();
	auto encryption = messagePart->encryptionState();
	bool messageIsSigned = signature == MimeTreeParser::KMMsgPartiallySigned \|\| signature == MimeTreeParser::KMMsgFullySigned;
	bool messageIsEncrypted = encryption == MimeTreeParser::KMMsgPartiallyEncrypted \|\| encryption == MimeTreeParser::KMMsgFullyEncrypted;

	if (messageIsSigned) {
	const auto sigInfo = signatureInfo(messagePart);
	if (!sigInfo.signatureIsGood) {
	if (sigInfo.keyMissing \|\| sigInfo.keyExpired) {
	return SecurityLevel::NotSoGood;
	}
	return SecurityLevel::Bad;
	}
	}
	// All good
	if ((messageIsSigned \|\| messageIsEncrypted) && !messagePart->error()) {
	return SecurityLevel::Good;
	}
	// No info
	return SecurityLevel::Unknow;
	}
	case EncryptionSecurityLevelRole: {
	auto encryption = messagePart->encryptionState();
	bool messageIsEncrypted = encryption == MimeTreeParser::KMMsgPartiallyEncrypted \|\| encryption == MimeTreeParser::KMMsgFullyEncrypted;
	if (messagePart->error()) {
	return SecurityLevel::Bad;
	}
	// All good
	if (messageIsEncrypted) {
	return SecurityLevel::Good;
	}
	// No info
	return SecurityLevel::Unknow;
	}
	case SignatureSecurityLevelRole: {
	auto signature = messagePart->signatureState();
	bool messageIsSigned = signature == MimeTreeParser::KMMsgPartiallySigned \|\| signature == MimeTreeParser::KMMsgFullySigned;
	if (messageIsSigned) {
	const auto sigInfo = signatureInfo(messagePart);
	if (!sigInfo.signatureIsGood) {
	if (sigInfo.keyMissing \|\| sigInfo.keyExpired) {
	return SecurityLevel::NotSoGood;
	}
	return SecurityLevel::Bad;
	}
	return SecurityLevel::Good;
	}
	// No info
	return SecurityLevel::Unknow;
	}
	case SignatureDetails:
	return QVariant::fromValue(signatureInfo(messagePart));
	case EncryptionDetails:
	return QVariant::fromValue(encryptionInfo(messagePart));
	case ErrorType:
	return messagePart->error();
	case ErrorString: {
	switch (messagePart->error()) {
	case MimeTreeParser::MessagePart::NoKeyError:
	return i18ndc("mimetreeparser", "@info:status", "No key available.");
	case MimeTreeParser::MessagePart::PassphraseError:
	return i18ndc("mimetreeparser", "@info:status", "Wrong passphrase.");
	case MimeTreeParser::MessagePart::UnknownError:
	break;
	default:
	break;
	}
	return messagePart->errorString();
	}
	}
	}
	return QVariant();
	}

	QModelIndex PartModel::parent(const QModelIndex &index) const
	{
	if (index.isValid()) {
	if (auto indexPart = static_cast<MimeTreeParser::MessagePart *>(index.internalPointer())) {
	for (const auto &part : std::as_const(d->mParts)) {
	if (part.data() == indexPart) {
	return QModelIndex();
	}
	}
	const auto parentPart = d->mParents[indexPart];
	Q_ASSERT(parentPart);
	int row = 0;
	const auto parts = d->mEncapsulatedParts[parentPart];
	for (const auto &part : parts) {
	if (part.data() == indexPart) {
	break;
	}
	row++;
	}
	return createIndex(row, 0, parentPart);
	}
	return {};
	}
	return {};
	}

	int PartModel::rowCount(const QModelIndex &parent) const
	{
	if (parent.isValid()) {
	const auto part = static_cast<MimeTreeParser::MessagePart *>(parent.internalPointer());
	auto encapsulatedPart = dynamic_cast<MimeTreeParser::EncapsulatedRfc822MessagePart *>(part);

	if (encapsulatedPart) {
	const auto parts = d->mEncapsulatedParts[encapsulatedPart];
	return parts.size();
	}
	return 0;
	}
	return d->mParts.count();
	}

	int PartModel::columnCount(const QModelIndex &) const
	{
	return 1;
	}

	#include "moc_partmodel.cpp"
	diff --git a/src/widgets/messageviewerdialog.cpp b/src/widgets/messageviewerdialog.cpp
	index 77e7f2e..1c9c013 100644
	--- a/src/widgets/messageviewerdialog.cpp
	+++ b/src/widgets/messageviewerdialog.cpp
	@@ -1,259 +1,289 @@
	// 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 <KMime/Message>

	#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>

	#include <memory>

	using namespace MimeTreeParser::Widgets;

	+namespace
	+{
	+
	+/// On windows, force the filename to end with .eml
	+/// On Linux, do nothing as this is handled by the file picker
	+inline QString changeExtension(const QString &fileName)
	+{
	+#ifdef Q_OS_WIN
	+ auto renamedFileName = fileName;
	+ renamedFileName.replace(QRegularExpression(QStringLiteral("(mbox\|p7m\|asc)$")), QStringLiteral("eml"));
	+
	+ // 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(QStringLiteral(".eml"))) {
	+ renamedFileName += QStringLiteral(".eml");
	+ }
	+
	+ Q_ASSERT(renamedFileName.endsWith(QStringLiteral(".eml")));
	+ return renamedFileName;
	+#else
	+ // Handled automatically by the file picker on linux
	+ return fileName;
	+#endif
	+}
	+
	+}
	+
	class MessageViewerDialog::Private
	{
	public:
	int currentIndex = 0;
	QList<KMime::Message::Ptr> messages;
	QString fileName;
	MimeTreeParser::Widgets::MessageViewer *messageViewer = nullptr;
	QAction *nextAction = nullptr;
	QAction *previousAction = 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]);

	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)
	{
	- const QString location =
	- QFileDialog::getSaveFileName(parent, i18nc("@title:window", "Save File"), fileName, i18nc("File dialog accepted files", "Email files (.eml .mbox)"));
	+ const QString location = QFileDialog::getSaveFileName(parent,
	+ i18nc("@title:window", "Save File"),
	+ changeExtension(fileName),
	+ i18nc("File dialog accepted files", "Email files (.eml .mbox)"));

	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"),
	- fileName,
	+ changeExtension(fileName),
	i18nc("File dialog accepted files", "Email files (.eml .mbox)"));

	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;
	auto decryptedMessage = CryptoUtils::decryptMessage(message, wasEncrypted);
	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 QString &fileName, QWidget *parent)
	: QDialog(parent)
	, d(std::make_unique<Private>())
	{
	d->fileName = fileName;
	const auto mainLayout = new QVBoxLayout(this);
	mainLayout->setContentsMargins({});

	const auto layout = new QVBoxLayout;
	layout->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));

	const auto menuBar = d->createMenuBar(this);
	mainLayout->setMenuBar(menuBar);

	d->messages += MimeTreeParser::Core::FileOpener::openFile(fileName);

	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;
	if (multipleMessages) {
	const auto toolBar = new QToolBar(this);
	#ifdef Q_OS_UNIX
	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.
	toolBar->setToolButtonStyle(Qt::ToolButtonTextBesideIcon);
	#endif

	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);
	toolBar->addWidget(spacer);

	toolBar->addAction(d->nextAction);
	connect(d->nextAction, &QAction::triggered, this, [this] {
	d->setCurrentIndex(d->currentIndex + 1);
	});
	d->nextAction->setEnabled(true);

	mainLayout->addWidget(toolBar);
	}

	mainLayout->addLayout(layout);

	d->messageViewer = new MimeTreeParser::Widgets::MessageViewer(this);
	d->messageViewer->setMessage(d->messages[0]);
	layout->addWidget(d->messageViewer);

	auto buttonBox = new QDialogButtonBox(this);
	auto closeButton = buttonBox->addButton(QDialogButtonBox::Close);
	connect(closeButton, &QPushButton::pressed, this, &QDialog::accept);
	layout->addWidget(buttonBox);
	}

	MessageViewerDialog::~MessageViewerDialog() = default;

	QList<KMime::Message::Ptr> MessageViewerDialog::messages() const
	{
	return d->messages;
	}

File Metadata

Mime Type: text/x-diff
Expires: Sat, May 10, 8:26 AM (1 d, 7 h)
Storage Engine: local-disk
Storage Format: Raw Data
Storage Handle: 8c/bc/e5167c3654908d8101b38cd10073

No OneTemporaryActions

View Options

File Metadata

Event Timeline

No OneTemporary
Actions