Implement autoreload of database file (#93)

This commit is contained in:
Jonathan White 2016-11-25 12:13:28 -05:00 committed by GitHub
commit 0dfd2003f9
12 changed files with 278 additions and 60 deletions

View File

@ -92,6 +92,7 @@ void Config::init(const QString& fileName)
m_defaults.insert("RememberLastKeyFiles", true);
m_defaults.insert("OpenPreviousDatabasesOnStartup", true);
m_defaults.insert("AutoSaveAfterEveryChange", false);
m_defaults.insert("AutoReloadOnChange", true);
m_defaults.insert("AutoSaveOnExit", false);
m_defaults.insert("ShowToolbar", true);
m_defaults.insert("MinimizeOnCopy", false);

View File

@ -324,3 +324,9 @@ void Database::startModifiedTimer()
}
m_timer->start(150);
}
const CompositeKey & Database::key() const
{
return m_data.key;
}

View File

@ -88,6 +88,7 @@ public:
QByteArray transformSeed() const;
quint64 transformRounds() const;
QByteArray transformedMasterKey() const;
const CompositeKey & key() const;
void setCipher(const Uuid& cipher);
void setCompressionAlgo(Database::CompressionAlgorithm algo);

View File

@ -547,7 +547,7 @@ void Group::merge(const Group* other)
if (!findEntry(entry->uuid())) {
entry->clone(Entry::CloneNoFlags)->setGroup(this);
} else {
resolveConflict(this->findEntry(entry->uuid()), entry);
resolveConflict(findEntry(entry->uuid()), entry);
}
}
@ -555,8 +555,8 @@ void Group::merge(const Group* other)
const QList<Group*> dbChildren = other->children();
for (Group* group : dbChildren) {
// groups are searched by name instead of uuid
if (this->findChildByName(group->name())) {
this->findChildByName(group->name())->merge(group);
if (findChildByName(group->name())) {
findChildByName(group->name())->merge(group);
} else {
group->setParent(this);
}
@ -765,24 +765,24 @@ void Group::resolveConflict(Entry* existingEntry, Entry* otherEntry)
Entry* clonedEntry;
switch(this->mergeMode()) {
switch(mergeMode()) {
case KeepBoth:
// if one entry is newer, create a clone and add it to the group
if (timeExisting > timeOther) {
clonedEntry = otherEntry->clone(Entry::CloneNoFlags);
clonedEntry->setGroup(this);
this->markOlderEntry(clonedEntry);
markOlderEntry(clonedEntry);
} else if (timeExisting < timeOther) {
clonedEntry = otherEntry->clone(Entry::CloneNoFlags);
clonedEntry->setGroup(this);
this->markOlderEntry(existingEntry);
markOlderEntry(existingEntry);
}
break;
case KeepNewer:
if (timeExisting < timeOther) {
// only if other entry is newer, replace existing one
this->removeEntry(existingEntry);
this->addEntry(otherEntry);
removeEntry(existingEntry);
addEntry(otherEntry->clone(Entry::CloneNoFlags));
}
break;

View File

@ -221,6 +221,7 @@ void DatabaseTabWidget::importKeePass1Database()
Database* db = new Database();
DatabaseManagerStruct dbStruct;
dbStruct.dbWidget = new DatabaseWidget(db, this);
dbStruct.dbWidget->databaseModified();
dbStruct.modified = true;
insertDatabase(db, dbStruct);
@ -312,17 +313,28 @@ bool DatabaseTabWidget::closeAllDatabases()
bool DatabaseTabWidget::saveDatabase(Database* db)
{
DatabaseManagerStruct& dbStruct = m_dbList[db];
// temporarily disable autoreload
dbStruct.dbWidget->ignoreNextAutoreload();
if (dbStruct.saveToFilename) {
QSaveFile saveFile(dbStruct.canonicalFilePath);
if (saveFile.open(QIODevice::WriteOnly)) {
// write the database to the file
m_writer.writeDatabase(&saveFile, db);
if (m_writer.hasError()) {
MessageBox::critical(this, tr("Error"), tr("Writing the database failed.") + "\n\n"
+ m_writer.errorString());
return false;
}
if (!saveFile.commit()) {
if (saveFile.commit()) {
// successfully saved database file
dbStruct.modified = false;
dbStruct.dbWidget->databaseSaved();
updateTabName(db);
return true;
}
else {
MessageBox::critical(this, tr("Error"), tr("Writing the database failed.") + "\n\n"
+ saveFile.errorString());
return false;
@ -333,10 +345,6 @@ bool DatabaseTabWidget::saveDatabase(Database* db)
+ saveFile.errorString());
return false;
}
dbStruct.modified = false;
updateTabName(db);
return true;
}
else {
return saveDatabaseAs(db);
@ -390,22 +398,14 @@ bool DatabaseTabWidget::saveDatabaseAs(Database* db)
}
}
QSaveFile saveFile(fileName);
if (!saveFile.open(QIODevice::WriteOnly)) {
MessageBox::critical(this, tr("Error"), tr("Writing the database failed.") + "\n\n"
+ saveFile.errorString());
return false;
}
// setup variables so saveDatabase succeeds
dbStruct.saveToFilename = true;
dbStruct.canonicalFilePath = fileName;
m_writer.writeDatabase(&saveFile, db);
if (m_writer.hasError()) {
MessageBox::critical(this, tr("Error"), tr("Writing the database failed.") + "\n\n"
+ m_writer.errorString());
return false;
}
if (!saveFile.commit()) {
MessageBox::critical(this, tr("Error"), tr("Writing the database failed.") + "\n\n"
+ saveFile.errorString());
if (!saveDatabase(db)) {
// failed to save, revert back
dbStruct.saveToFilename = false;
dbStruct.canonicalFilePath = oldFileName;
return false;
}
@ -626,7 +626,7 @@ void DatabaseTabWidget::insertDatabase(Database* db, const DatabaseManagerStruct
setCurrentIndex(index);
connectDatabase(db);
connect(dbStruct.dbWidget, SIGNAL(closeRequest()), SLOT(closeDatabaseFromSender()));
connect(dbStruct.dbWidget, SIGNAL(databaseChanged(Database*)), SLOT(changeDatabase(Database*)));
connect(dbStruct.dbWidget, SIGNAL(databaseChanged(Database*, bool)), SLOT(changeDatabase(Database*, bool)));
connect(dbStruct.dbWidget, SIGNAL(unlockedDatabase()), SLOT(updateTabNameFromDbWidgetSender()));
connect(dbStruct.dbWidget, SIGNAL(unlockedDatabase()), SLOT(emitDatabaseUnlockedFromDbWidgetSender()));
}
@ -744,6 +744,7 @@ void DatabaseTabWidget::modified()
if (!dbStruct.modified) {
dbStruct.modified = true;
dbStruct.dbWidget->databaseModified();
updateTabName(db);
}
}
@ -765,7 +766,7 @@ void DatabaseTabWidget::updateLastDatabases(const QString& filename)
}
}
void DatabaseTabWidget::changeDatabase(Database* newDb)
void DatabaseTabWidget::changeDatabase(Database* newDb, bool unsavedChanges)
{
Q_ASSERT(sender());
Q_ASSERT(!m_dbList.contains(newDb));
@ -773,6 +774,7 @@ void DatabaseTabWidget::changeDatabase(Database* newDb)
DatabaseWidget* dbWidget = static_cast<DatabaseWidget*>(sender());
Database* oldDb = databaseFromDatabaseWidget(dbWidget);
DatabaseManagerStruct dbStruct = m_dbList[oldDb];
dbStruct.modified = unsavedChanges;
m_dbList.remove(oldDb);
m_dbList.insert(newDb, dbStruct);

View File

@ -91,7 +91,7 @@ private Q_SLOTS:
void updateTabNameFromDbWidgetSender();
void modified();
void toggleTabbar();
void changeDatabase(Database* newDb);
void changeDatabase(Database* newDb, bool unsavedChanges);
void emitActivateDatabaseChanged();
void emitDatabaseUnlockedFromDbWidgetSender();

View File

@ -21,6 +21,7 @@
#include <QDesktopServices>
#include <QHBoxLayout>
#include <QLabel>
#include <QFile>
#include <QLineEdit>
#include <QKeyEvent>
#include <QSplitter>
@ -36,6 +37,7 @@
#include "core/Group.h"
#include "core/Metadata.h"
#include "core/Tools.h"
#include "format/KeePass2Reader.h"
#include "gui/ChangeMasterKeyWidget.h"
#include "gui/Clipboard.h"
#include "gui/DatabaseOpenWidget.h"
@ -157,8 +159,17 @@ DatabaseWidget::DatabaseWidget(Database* db, QWidget* parent)
connect(m_keepass1OpenWidget, SIGNAL(editFinished(bool)), SLOT(openDatabase(bool)));
connect(m_unlockDatabaseWidget, SIGNAL(editFinished(bool)), SLOT(unlockDatabase(bool)));
connect(m_unlockDatabaseDialog, SIGNAL(unlockDone(bool)), SLOT(unlockDatabase(bool)));
connect(&m_fileWatcher, SIGNAL(fileChanged(QString)), this, SLOT(onWatchedFileChanged()));
connect(&m_fileWatchTimer, SIGNAL(timeout()), this, SLOT(reloadDatabaseFile()));
connect(&m_ignoreWatchTimer, SIGNAL(timeout()), this, SLOT(onWatchedFileChanged()));
connect(this, SIGNAL(currentChanged(int)), this, SLOT(emitCurrentModeChanged()));
m_databaseModified = false;
m_fileWatchTimer.setSingleShot(true);
m_ignoreWatchTimer.setSingleShot(true);
m_ignoreNextAutoreload = false;
m_searchCaseSensitive = false;
m_searchCurrentGroup = false;
@ -291,7 +302,7 @@ void DatabaseWidget::replaceDatabase(Database* db)
Database* oldDb = m_db;
m_db = db;
m_groupView->changeDatabase(m_db);
Q_EMIT databaseChanged(m_db);
Q_EMIT databaseChanged(m_db, m_databaseModified);
delete oldDb;
}
@ -663,8 +674,10 @@ void DatabaseWidget::openDatabase(bool accepted)
m_databaseOpenWidget = nullptr;
delete m_keepass1OpenWidget;
m_keepass1OpenWidget = nullptr;
m_fileWatcher.addPath(m_filename);
}
else {
m_fileWatcher.removePath(m_filename);
if (m_databaseOpenWidget->database()) {
delete m_databaseOpenWidget->database();
}
@ -809,6 +822,16 @@ void DatabaseWidget::switchToImportKeepass1(const QString& fileName)
setCurrentWidget(m_keepass1OpenWidget);
}
void DatabaseWidget::databaseModified()
{
m_databaseModified = true;
}
void DatabaseWidget::databaseSaved()
{
m_databaseModified = false;
}
void DatabaseWidget::search(const QString& searchtext)
{
if (searchtext.isEmpty())
@ -947,9 +970,99 @@ void DatabaseWidget::lock()
void DatabaseWidget::updateFilename(const QString& fileName)
{
if (! m_filename.isEmpty()) {
m_fileWatcher.removePath(m_filename);
}
m_fileWatcher.addPath(fileName);
m_filename = fileName;
}
void DatabaseWidget::ignoreNextAutoreload()
{
m_ignoreNextAutoreload = true;
m_ignoreWatchTimer.start(100);
}
void DatabaseWidget::onWatchedFileChanged()
{
if (m_ignoreNextAutoreload) {
// Reset the watch
m_ignoreNextAutoreload = false;
m_ignoreWatchTimer.stop();
m_fileWatcher.addPath(m_filename);
}
else {
if (m_fileWatchTimer.isActive())
return;
m_fileWatchTimer.start(500);
}
}
void DatabaseWidget::reloadDatabaseFile()
{
if (m_db == nullptr)
return;
if (! config()->get("AutoReloadOnChange").toBool()) {
// Ask if we want to reload the db
QMessageBox::StandardButton mb = MessageBox::question(this, tr("Autoreload Request"),
tr("The database file has changed. Do you want to load the changes?"),
QMessageBox::Yes | QMessageBox::No);
if (mb == QMessageBox::No) {
// Notify everyone the database does not match the file
emit m_db->modified();
m_databaseModified = true;
// Rewatch the database file
m_fileWatcher.addPath(m_filename);
return;
}
}
KeePass2Reader reader;
QFile file(m_filename);
if (file.open(QIODevice::ReadOnly)) {
Database* db = reader.readDatabase(&file, database()->key());
if (db != nullptr) {
if (m_databaseModified) {
// Ask if we want to merge changes into new database
QMessageBox::StandardButton mb = MessageBox::question(this, tr("Merge Request"),
tr("The database file has changed and you have unsaved changes."
"Do you want to merge your changes?"),
QMessageBox::Yes | QMessageBox::No);
if (mb == QMessageBox::Yes) {
// Merge the old database into the new one
m_db->setEmitModified(false);
db->merge(m_db);
}
else {
// Since we are accepting the new file as-is, internally mark as unmodified
// TODO: when saving is moved out of DatabaseTabWidget, this should be replaced
m_databaseModified = false;
}
}
replaceDatabase(db);
}
else {
MessageBox::critical(this, tr("Autoreload Failed"),
tr("Could not parse or unlock the new database file while attempting"
"to autoreload this database."));
}
}
else {
MessageBox::critical(this, tr("Autoreload Failed"),
tr("Could not open the new database file while attempting to autoreload"
"this database."));
}
// Rewatch the database file
m_fileWatcher.addPath(m_filename);
}
int DatabaseWidget::numberOfSelectedEntries() const
{
return m_entryView->numberOfSelectedEntries();

View File

@ -20,6 +20,8 @@
#include <QScopedPointer>
#include <QStackedWidget>
#include <QFileSystemWatcher>
#include <QTimer>
#include "core/Uuid.h"
@ -42,6 +44,7 @@ class QSplitter;
class QLabel;
class UnlockDatabaseWidget;
class UnlockDatabaseDialog;
class QFileSystemWatcher;
class DatabaseWidget : public QStackedWidget
{
@ -89,13 +92,14 @@ public:
EntryView* entryView();
void showUnlockDialog();
void closeUnlockDialog();
void ignoreNextAutoreload();
Q_SIGNALS:
void closeRequest();
void currentModeChanged(DatabaseWidget::Mode mode);
void groupChanged();
void entrySelectionChanged();
void databaseChanged(Database* newDb);
void databaseChanged(Database* newDb, bool unsavedChanges);
void databaseMerged(Database* mergedDb);
void groupContextMenuRequested(const QPoint& globalPos);
void entryContextMenuRequested(const QPoint& globalPos);
@ -133,6 +137,8 @@ public Q_SLOTS:
void switchToOpenMergeDatabase(const QString& fileName);
void switchToOpenMergeDatabase(const QString& fileName, const QString& password, const QString& keyFile);
void switchToImportKeepass1(const QString& fileName);
void databaseModified();
void databaseSaved();
// Search related slots
void search(const QString& searchtext);
void setSearchCaseSensitive(bool state);
@ -154,6 +160,9 @@ private Q_SLOTS:
void unlockDatabase(bool accepted);
void emitCurrentModeChanged();
void clearLastGroup(Group* group);
// Database autoreload slots
void onWatchedFileChanged();
void reloadDatabaseFile();
private:
void setClipboardTextAndMinimize(const QString& text);
@ -187,6 +196,13 @@ private:
QString m_lastSearchText;
bool m_searchCaseSensitive;
bool m_searchCurrentGroup;
// Autoreload
QFileSystemWatcher m_fileWatcher;
QTimer m_fileWatchTimer;
bool m_ignoreNextAutoreload;
QTimer m_ignoreWatchTimer;
bool m_databaseModified;
};
#endif // KEEPASSX_DATABASEWIDGET_H

View File

@ -102,6 +102,7 @@ void SettingsWidget::loadSettings()
config()->get("OpenPreviousDatabasesOnStartup").toBool());
m_generalUi->autoSaveAfterEveryChangeCheckBox->setChecked(config()->get("AutoSaveAfterEveryChange").toBool());
m_generalUi->autoSaveOnExitCheckBox->setChecked(config()->get("AutoSaveOnExit").toBool());
m_generalUi->autoReloadOnChangeCheckBox->setChecked(config()->get("AutoReloadOnChange").toBool());
m_generalUi->minimizeOnCopyCheckBox->setChecked(config()->get("MinimizeOnCopy").toBool());
m_generalUi->useGroupIconOnEntryCreationCheckBox->setChecked(config()->get("UseGroupIconOnEntryCreation").toBool());
m_generalUi->autoTypeEntryTitleMatchCheckBox->setChecked(config()->get("AutoTypeEntryTitleMatch").toBool());
@ -156,6 +157,7 @@ void SettingsWidget::saveSettings()
config()->set("AutoSaveAfterEveryChange",
m_generalUi->autoSaveAfterEveryChangeCheckBox->isChecked());
config()->set("AutoSaveOnExit", m_generalUi->autoSaveOnExitCheckBox->isChecked());
config()->set("AutoReloadOnChange", m_generalUi->autoReloadOnChangeCheckBox->isChecked());
config()->set("MinimizeOnCopy", m_generalUi->minimizeOnCopyCheckBox->isChecked());
config()->set("UseGroupIconOnEntryCreation",
m_generalUi->useGroupIconOnEntryCreationCheckBox->isChecked());

View File

@ -56,54 +56,54 @@
</widget>
</item>
<item row="5" column="0">
<widget class="QCheckBox" name="autoReloadOnChangeCheckBox">
<property name="text">
<string>Automatically reload the database when modified externally</string>
</property>
</widget>
</item>
<item row="6" column="0">
<widget class="QCheckBox" name="minimizeOnCopyCheckBox">
<property name="text">
<string>Minimize when copying to clipboard</string>
</property>
</widget>
</item>
<item row="6" column="0">
<item row="7" column="0">
<widget class="QCheckBox" name="useGroupIconOnEntryCreationCheckBox">
<property name="text">
<string>Use group icon on entry creation</string>
</property>
</widget>
</item>
<item row="7" column="0">
<item row="8" column="0">
<widget class="QLabel" name="autoTypeShortcutLabel">
<property name="text">
<string>Global Auto-Type shortcut</string>
</property>
</widget>
</item>
<item row="7" column="1">
<item row="8" column="1">
<widget class="ShortcutWidget" name="autoTypeShortcutWidget"/>
</item>
<item row="8" column="0">
<item row="9" column="0">
<widget class="QCheckBox" name="autoTypeEntryTitleMatchCheckBox">
<property name="text">
<string>Use entry title to match windows for global auto-type</string>
</property>
</widget>
</item>
<item row="9" column="0">
<item row="10" column="0">
<widget class="QLabel" name="languageLabel">
<property name="text">
<string>Language</string>
</property>
</widget>
</item>
<item row="9" column="1">
<item row="10" column="1">
<widget class="QComboBox" name="languageComboBox"/>
</item>
<item row="10" column="0">
<widget class="QCheckBox" name="systrayShowCheckBox">
<property name="text">
<string>Show a system tray icon</string>
</property>
</widget>
</item>
<item row="11" column="0">
<item row="12" column="0">
<layout class="QHBoxLayout" name="systray1Layout">
<property name="sizeConstraint">
<enum>QLayout::SetMaximumSize</enum>
@ -139,7 +139,7 @@
</item>
</layout>
</item>
<item row="12" column="0">
<item row="13" column="0">
<layout class="QHBoxLayout" name="systray2Layout">
<property name="sizeConstraint">
<enum>QLayout::SetMaximumSize</enum>
@ -169,7 +169,7 @@
</item>
</layout>
</item>
<item row="13" column="0">
<item row="14" column="0">
<layout class="QHBoxLayout" name="systray3Layout">
<property name="sizeConstraint">
<enum>QLayout::SetMaximumSize</enum>
@ -183,6 +183,13 @@
</item>
</layout>
</item>
<item row="11" column="0">
<widget class="QCheckBox" name="systrayShowCheckBox">
<property name="text">
<string>Show a system tray icon</string>
</property>
</widget>
</item>
</layout>
</widget>
<customwidgets>

View File

@ -66,20 +66,20 @@ void TestGui::initTestCase()
QByteArray tmpData;
QFile sourceDbFile(QString(KEEPASSX_TEST_DATA_DIR).append("/NewDatabase.kdbx"));
QVERIFY(sourceDbFile.open(QIODevice::ReadOnly));
QVERIFY(Tools::readAllFromDevice(&sourceDbFile, tmpData));
QVERIFY(Tools::readAllFromDevice(&sourceDbFile, m_dbData));
sourceDbFile.close();
// Write the temp storage to a temp database file for use in our tests
QVERIFY(m_dbFile.open());
QCOMPARE(m_dbFile.write(tmpData), static_cast<qint64>((tmpData.size())));
m_dbFile.close();
m_dbFileName = QFileInfo(m_dbFile).fileName();
}
// Every test starts with opening the temp database
void TestGui::init()
{
// Write the temp storage to a temp database file for use in our tests
QVERIFY(m_dbFile.open());
QCOMPARE(m_dbFile.write(m_dbData), static_cast<qint64>((m_dbData.size())));
m_dbFile.close();
m_dbFileName = QFileInfo(m_dbFile).fileName();
fileDialog()->setNextFileName(m_dbFile.fileName());
triggerAction("actionDatabaseOpen");
@ -111,8 +111,8 @@ void TestGui::cleanup()
void TestGui::testMergeDatabase()
{
// this triggers a warning. Perhaps similar to https://bugreports.qt.io/browse/QTBUG-49623 ?
QSignalSpy dbMergeSpy(m_tabWidget->currentWidget(), SIGNAL(databaseMerged(Database*)));
// It is safe to ignore the warning this line produces
QSignalSpy dbMergeSpy(m_dbWidget, SIGNAL(databaseMerged(Database*)));
// set file to merge from
fileDialog()->setNextFileName(QString(KEEPASSX_TEST_DATA_DIR).append("/MergeDatabase.kdbx"));
@ -140,6 +140,74 @@ void TestGui::testMergeDatabase()
QCOMPARE(m_db->rootGroup()->findChildByName("General")->entries().size(), 1);
}
void TestGui::testAutoreloadDatabase()
{
config()->set("AutoReloadOnChange", false);
// Load the MergeDatabase.kdbx file into temporary storage
QByteArray tmpData;
QFile mergeDbFile(QString(KEEPASSX_TEST_DATA_DIR).append("/MergeDatabase.kdbx"));
QVERIFY(mergeDbFile.open(QIODevice::ReadOnly));
QVERIFY(Tools::readAllFromDevice(&mergeDbFile, tmpData));
mergeDbFile.close();
// Test accepting new file in autoreload
MessageBox::setNextAnswer(QMessageBox::Yes);
// Overwrite the current database with the temp data
QVERIFY(m_dbFile.open());
QVERIFY(m_dbFile.write(tmpData, static_cast<qint64>(tmpData.size())));
m_dbFile.close();
Tools::wait(1500);
m_db = m_dbWidget->database();
// the General group contains one entry from the new db data
QCOMPARE(m_db->rootGroup()->findChildByName("General")->entries().size(), 1);
QVERIFY(! m_tabWidget->tabText(m_tabWidget->currentIndex()).endsWith("*"));
// Reset the state
cleanup();
init();
// Test rejecting new file in autoreload
MessageBox::setNextAnswer(QMessageBox::No);
// Overwrite the current temp database with a new file
m_dbFile.open();
QVERIFY(m_dbFile.write(tmpData, static_cast<qint64>(tmpData.size())));
m_dbFile.close();
Tools::wait(1500);
m_db = m_dbWidget->database();
// Ensure the merge did not take place
QCOMPARE(m_db->rootGroup()->findChildByName("General")->entries().size(), 0);
QVERIFY(m_tabWidget->tabText(m_tabWidget->currentIndex()).endsWith("*"));
// Reset the state
cleanup();
init();
// Test accepting a merge of edits into autoreload
// Turn on autoload so we only get one messagebox (for the merge)
config()->set("AutoReloadOnChange", true);
// Modify some entries
testEditEntry();
// This is saying yes to merging the entries
MessageBox::setNextAnswer(QMessageBox::Yes);
// Overwrite the current database with the temp data
QVERIFY(m_dbFile.open());
QVERIFY(m_dbFile.write(tmpData, static_cast<qint64>(tmpData.size())));
m_dbFile.close();
Tools::wait(1500);
m_db = m_dbWidget->database();
QCOMPARE(m_db->rootGroup()->findChildByName("General")->entries().size(), 1);
QVERIFY(m_tabWidget->tabText(m_tabWidget->currentIndex()).endsWith("*"));
}
void TestGui::testTabs()
{
QCOMPARE(m_tabWidget->count(), 1);

View File

@ -39,6 +39,7 @@ private Q_SLOTS:
void cleanupTestCase();
void testMergeDatabase();
void testAutoreloadDatabase();
void testTabs();
void testEditEntry();
void testAddEntry();
@ -65,6 +66,7 @@ private:
MainWindow* m_mainWindow;
DatabaseTabWidget* m_tabWidget;
DatabaseWidget* m_dbWidget;
QByteArray m_dbData;
QTemporaryFile m_dbFile;
QString m_dbFileName;
Database* m_db;