468 lines
14 KiB
C++
468 lines
14 KiB
C++
#include "./controller.h"
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#include "./android.h"
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#include <passwordfile/io/cryptoexception.h>
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#include <passwordfile/io/parsingexception.h>
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#include <qtutilities/misc/dialogutils.h>
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#include <c++utilities/io/catchiofailure.h>
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#include <c++utilities/io/nativefilestream.h>
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#include <c++utilities/io/path.h>
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#ifndef QT_NO_CLIPBOARD
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#include <QClipboard>
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#endif
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#ifdef DEBUG_BUILD
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#include <QDebug>
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#endif
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#include <QDir>
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#include <QFileInfo>
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#include <QGuiApplication>
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#include <QIcon>
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#include <QSettings>
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#include <QStringBuilder>
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#include <cassert>
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#include <stdexcept>
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using namespace std;
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using namespace Io;
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using namespace IoUtilities;
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using namespace Dialogs;
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namespace QtGui {
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Controller::Controller(QSettings &settings, const QString &filePath, QObject *parent)
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: QObject(parent)
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, m_settings(settings)
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#ifdef PASSWORD_MANAGER_UNDO_SUPPORT
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, m_entryModel(&m_undoStack)
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, m_fieldModel(&m_undoStack)
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#endif
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, m_fileOpen(false)
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, m_fileModified(false)
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, m_useNativeFileDialog(false)
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, m_filterAsDialog(
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#ifdef Q_OS_ANDROID
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true
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#else
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false
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#endif
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)
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{
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m_fieldModel.setPasswordVisibility(PasswordVisibility::Never);
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m_entryFilterModel.setFilterCaseSensitivity(Qt::CaseInsensitive);
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m_entryFilterModel.setSourceModel(&m_entryModel);
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connect(&m_entryModel, &QAbstractItemModel::rowsAboutToBeRemoved, this, &Controller::handleEntriesRemoved);
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#ifdef PASSWORD_MANAGER_UNDO_SUPPORT
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connect(&m_undoStack, &QUndoStack::undoTextChanged, this, &Controller::undoTextChanged);
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connect(&m_undoStack, &QUndoStack::redoTextChanged, this, &Controller::redoTextChanged);
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#endif
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// share settings with main window
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m_settings.beginGroup(QStringLiteral("mainwindow"));
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m_recentFiles = m_settings.value(QStringLiteral("recententries")).toStringList();
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m_useNativeFileDialog = m_settings.value(QStringLiteral("usenativefiledialog"), m_useNativeFileDialog).toBool();
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connect(this, &Controller::recentFilesChanged, this, &Controller::handleRecentFilesChanged);
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// set initial file path
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setFilePath(filePath);
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}
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void Controller::setFilePath(const QString &filePath)
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{
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// get rid of file:// prefix
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QStringRef actualFilePath(&filePath);
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if (filePath.startsWith(QLatin1String("file:"))) {
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actualFilePath = filePath.midRef(5);
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}
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while (filePath.startsWith(QLatin1String("//"))) {
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actualFilePath = actualFilePath.mid(1);
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}
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// skip if this path is already set
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if (m_filePath == actualFilePath) {
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return;
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}
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// assign full file path and file name
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m_file.clear();
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m_file.setPath(filePath.toLocal8Bit().data());
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m_fileName = QString::fromLocal8Bit(IoUtilities::fileName(m_file.path()).data());
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emit filePathChanged(m_filePath = filePath);
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// clear password so we don't use the password from the previous file
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m_password.clear();
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// handle recent files
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const auto index = m_recentFiles.indexOf(m_filePath);
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if (!index) {
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return;
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}
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if (index < 0) {
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m_recentFiles.prepend(m_filePath);
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} else if (index > 0) {
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m_recentFiles[index].swap(m_recentFiles.first());
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}
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while (m_recentFiles.size() > 10) {
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m_recentFiles.removeLast();
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}
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emit recentFilesChanged(m_recentFiles);
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}
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void Controller::setPassword(const QString &password)
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{
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if (m_password == password) {
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return;
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}
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m_file.setPassword(password.toUtf8().data());
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emit passwordChanged(m_password = password);
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}
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void Controller::init()
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{
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if (!m_filePath.isEmpty()) {
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load();
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}
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}
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void Controller::load(const QString &filePath)
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{
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if (!filePath.isEmpty()) {
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setFilePath(filePath);
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}
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resetFileStatus();
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try {
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m_file.load();
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m_entryModel.setRootEntry(m_file.rootEntry());
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if (!m_entryModel.rootEntry()) {
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emit fileError(tr("An error occured when opening the file: root element missing"), QStringLiteral("load"));
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return;
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}
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setFileOpen(true);
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updateWindowTitle();
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} catch (const CryptoException &e) {
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if (m_file.isEncryptionUsed() && m_password.isEmpty()) {
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emit passwordRequired(m_filePath);
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} else {
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// clear password since the password which has been provided likely wasn't correct
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clearPassword();
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emit fileError(tr("A crypto error occured when opening the file: ") + QString::fromLocal8Bit(e.what()), QStringLiteral("load"));
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}
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} catch (const runtime_error &e) {
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emit fileError(tr("A parsing error occured when opening the file: ") + QString::fromLocal8Bit(e.what()), QStringLiteral("load"));
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} catch (...) {
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emitIoError(tr("loading"));
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}
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}
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void Controller::create(const QString &filePath)
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{
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if (!filePath.isEmpty()) {
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setFilePath(filePath);
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}
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resetFileStatus();
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try {
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if (filePath.isEmpty()) {
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m_file.clear();
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}
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m_file.create();
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} catch (...) {
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emitIoError(tr("creating"));
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}
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m_file.generateRootEntry();
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m_entryModel.setRootEntry(m_file.rootEntry());
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setFileOpen(true);
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updateWindowTitle();
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}
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void Controller::close()
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{
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try {
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m_file.close();
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resetFileStatus();
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} catch (...) {
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emitIoError(tr("closing"));
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}
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}
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void Controller::save()
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{
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auto flags = PasswordFileSaveFlags::Compression | PasswordFileSaveFlags::PasswordHashing;
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if (!m_password.isEmpty()) {
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flags |= PasswordFileSaveFlags::Encryption;
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const auto passwordUtf8(m_password.toUtf8());
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m_file.setPassword(passwordUtf8.data(), static_cast<size_t>(passwordUtf8.size()));
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} else {
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m_file.clearPassword();
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}
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try {
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#if defined(Q_OS_ANDROID) && defined(CPP_UTILITIES_USE_NATIVE_FILE_BUFFER)
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if (!m_nativeUrl.isEmpty()) {
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// ensure file is closed
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m_file.close();
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// open new file descriptor to replace existing file and allow writing
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IF_DEBUG_BUILD(qDebug() << "Opening new fd for saving, native url: " << m_nativeUrl;)
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const auto newFileDescriptor = openFileDescriptorFromAndroidContentUrl(m_nativeUrl, QStringLiteral("wt"));
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if (newFileDescriptor < 0) {
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emit fileError(tr("Unable to open file descriptor for saving the file."));
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return;
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}
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m_file.fileStream().openFromFileDescriptor(newFileDescriptor, ios_base::out | ios_base::trunc | ios_base::binary);
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m_file.write(flags);
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} else {
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#endif
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// let libpasswordfile handle everything
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m_file.save(flags);
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#if defined(Q_OS_ANDROID) && defined(CPP_UTILITIES_USE_NATIVE_FILE_BUFFER)
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}
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#endif
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emit fileSaved();
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} catch (const CryptoException &e) {
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emit fileError(tr("A crypto error occured when saving the file: ") + QString::fromLocal8Bit(e.what()), QStringLiteral("save"));
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} catch (const runtime_error &e) {
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emit fileError(tr("An internal error occured when saving the file: ") + QString::fromLocal8Bit(e.what()), QStringLiteral("save"));
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} catch (...) {
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emitIoError(tr("saving"));
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}
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}
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/*!
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* \brief Shows a native file dialog if supported; otherwise returns false.
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* \remarks If supported, this method will load/create the selected file (according to \a existing).
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*/
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bool Controller::showNativeFileDialog(bool existing)
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{
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#if defined(Q_OS_ANDROID) && defined(CPP_UTILITIES_USE_NATIVE_FILE_BUFFER)
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if (!m_useNativeFileDialog) {
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return false;
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}
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return showAndroidFileDialog(existing);
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#else
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Q_UNUSED(existing)
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return false;
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#endif
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}
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void Controller::handleFileSelectionAccepted(const QString &filePath, bool existing)
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{
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m_nativeUrl.clear();
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if (existing) {
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load(filePath);
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} else {
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create(filePath);
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}
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}
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#if defined(Q_OS_ANDROID) && defined(CPP_UTILITIES_USE_NATIVE_FILE_BUFFER)
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void Controller::handleFileSelectionAcceptedDescriptor(const QString &nativeUrl, const QString &fileName, int fileDescriptor, bool existing)
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{
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try {
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m_file.setPath(fileName.toStdString());
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m_file.fileStream().openFromFileDescriptor(fileDescriptor, ios_base::in | ios_base::binary);
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m_file.opened();
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} catch (...) {
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emitIoError(tr("opening from native file descriptor"));
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}
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emit filePathChanged(m_filePath = m_fileName = fileName);
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handleFileSelectionAccepted(QString(), existing);
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m_nativeUrl = nativeUrl;
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}
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#endif
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void Controller::handleFileSelectionCanceled()
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{
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emit newNotification(tr("Canceled file selection"));
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}
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void Controller::handleEntriesRemoved(const QModelIndex &parentIndex, int first, int last)
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{
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// handle deletion of root (currently the view doesn't allow this)
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const auto *const parentEntry = m_entryModel.entry(parentIndex);
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if (!parentEntry) {
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emit entryAboutToBeRemoved(m_entryModel.index(0, 0, QModelIndex()));
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setCurrentAccount(nullptr);
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return;
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}
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// assert arguments
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assert(parentEntry->type() == EntryType::Node);
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const auto &childEntries = static_cast<const NodeEntry *>(parentEntry)->children();
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assert(first >= 0 && static_cast<size_t>(first) < childEntries.size());
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assert(last >= 0 && static_cast<size_t>(last) < childEntries.size());
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// iterate from first to last of the deleted entries
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const auto *const currentAccount = this->currentAccount();
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for (; first <= last; ++first) {
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// inform view about deletion
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emit entryAboutToBeRemoved(m_entryModel.index(first, 0, parentIndex));
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// unset current account if it is under the deleted node
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if (!currentAccount) {
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continue;
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}
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const auto *const childEntry = childEntries[static_cast<size_t>(first)];
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switch (childEntry->type()) {
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case EntryType::Account:
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if (currentAccount == static_cast<const AccountEntry *>(childEntry)) {
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setCurrentAccount(nullptr);
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}
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break;
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case EntryType::Node:
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// FIXME: remove const_cast in passwordfile v4
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if (currentAccount->isIndirectChildOf(static_cast<NodeEntry *>(const_cast<Entry *>(childEntry)))) {
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setCurrentAccount(nullptr);
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}
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break;
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default:;
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}
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}
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}
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void Controller::handleRecentFilesChanged()
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{
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m_settings.setValue(QStringLiteral("recententries"), m_recentFiles);
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}
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QStringList Controller::pasteEntries(const QModelIndex &destinationParentMaybeFromFilterModel, int row)
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{
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// skip if no entries have been cut
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if (m_cutEntries.isEmpty()) {
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return QStringList();
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}
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// determine destinationParent and row in the source model
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QModelIndex destinationParent;
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if (destinationParentMaybeFromFilterModel.model() == &m_entryFilterModel) {
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if (row < 0) {
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row = m_entryFilterModel.rowCount(destinationParentMaybeFromFilterModel);
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}
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const auto destinationIndexInFilter = m_entryFilterModel.index(row, 0, destinationParentMaybeFromFilterModel);
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if (destinationIndexInFilter.isValid()) {
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const auto destinationIndex = m_entryFilterModel.mapToSource(destinationIndexInFilter);
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destinationParent = destinationIndex.parent();
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row = destinationIndex.row();
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} else {
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destinationParent = m_entryFilterModel.mapToSource(destinationParentMaybeFromFilterModel);
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row = -1;
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}
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} else {
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destinationParent = destinationParentMaybeFromFilterModel;
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}
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if (row < 0) {
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row = m_entryModel.rowCount(destinationParent);
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}
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// skip if destination is no node
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if (!m_entryModel.isNode(destinationParent)) {
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return QStringList();
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}
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// move the entries
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QStringList successfullyMovedEntries;
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successfullyMovedEntries.reserve(m_cutEntries.size());
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for (const QPersistentModelIndex &cutIndex : m_cutEntries) {
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if (m_entryModel.moveRows(cutIndex.parent(), cutIndex.row(), 1, destinationParent, row)) {
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successfullyMovedEntries << m_entryModel.data(m_entryModel.index(row, 0, destinationParent)).toString();
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++row;
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}
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}
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// clear the cut entries
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m_cutEntries.clear();
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emit cutEntriesChanged(m_cutEntries);
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return successfullyMovedEntries;
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}
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bool Controller::copyToClipboard(const QString &text) const
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{
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#ifndef QT_NO_CLIPBOARD
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auto *const clipboard(QGuiApplication::clipboard());
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if (!clipboard) {
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return false;
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}
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clipboard->setText(text);
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return true;
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#else
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return false;
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#endif
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}
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void Controller::resetFileStatus()
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{
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m_entryModel.reset();
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m_fieldModel.reset();
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setFileOpen(false);
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}
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void Controller::updateWindowTitle()
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{
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if (m_fileOpen) {
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const QFileInfo file(m_filePath);
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emit windowTitleChanged(m_windowTitle = file.fileName() % QStringLiteral(" - ") % file.dir().path());
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} else {
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emit windowTitleChanged(tr("No file opened."));
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}
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}
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void Controller::setFileOpen(bool fileOpen)
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{
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if (fileOpen != m_fileOpen) {
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emit fileOpenChanged(m_fileOpen = fileOpen);
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}
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}
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void Controller::emitIoError(const QString &when)
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{
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try {
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const auto *const msg = catchIoFailure();
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emit fileError(tr("An IO error occured when %1 the file %2: ").arg(when, m_filePath) + QString::fromLocal8Bit(msg), QStringLiteral("load"));
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} catch (const exception &e) {
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emit fileError(tr("An unknown exception occured when %1 the file %2: ").arg(when, m_filePath) + QString::fromLocal8Bit(e.what()),
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QStringLiteral("load"));
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} catch (...) {
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emit fileError(tr("An unknown error occured when %1 the file %2.").arg(when, m_filePath), QStringLiteral("load"));
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}
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}
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void Controller::clearRecentFiles()
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{
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if (m_recentFiles.isEmpty()) {
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return;
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}
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m_recentFiles.clear();
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emit recentFilesChanged(m_recentFiles);
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}
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void Controller::setUseNativeFileDialog(bool useNativeFileDialog)
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{
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if (m_useNativeFileDialog == useNativeFileDialog) {
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return;
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}
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emit useNativeFileDialogChanged(m_useNativeFileDialog = useNativeFileDialog);
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m_settings.setValue(QStringLiteral("usenativefiledialog"), m_useNativeFileDialog);
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}
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void Controller::setEntryFilter(const QString &filter)
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{
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const auto previousFilter(m_entryFilterModel.filterRegExp().pattern());
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if (filter == previousFilter) {
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return;
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}
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m_entryFilterModel.setFilterRegExp(filter);
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emit entryFilterChanged(filter);
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if (previousFilter.isEmpty() != filter.isEmpty()) {
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emit hasEntryFilterChanged(!filter.isEmpty());
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}
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}
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} // namespace QtGui
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