Fix several issues with Quick Unlock

* Fix #7892 - Pressing escape when the quick unlock prompt is shown will now go back to the main unlock dialog view.
* Fix #9030 - Quick unlock will be automatically invoked in the unlock dialog upon being shown.
* Fix #9554 - Quick unlock application setting will be updated every time the settings widget is shown instead of just on first launch.

share/translations/keepassxc_en.ts

@@ -1579,6 +1579,10 @@ If you do not have a key file, please leave the field empty.</source>
         <source>Failed to authenticate with Windows Hello: %1</source>
         <translation type="unfinished"></translation>
     </message>
+    <message>
+        <source>Windows Hello setup was canceled or failed. Quick unlock has not been enabled.</source>
+        <translation type="unfinished"></translation>
+    </message>
 </context>
 <context>
     <name>DatabaseSettingWidgetMetaData</name>

src/gui/ApplicationSettingsWidget.cpp

@@ -164,15 +164,6 @@ ApplicationSettingsWidget::ApplicationSettingsWidget(QWidget* parent)
     m_generalUi->faviconTimeoutLabel->setVisible(false);
     m_generalUi->faviconTimeoutSpinBox->setVisible(false);
 #endif
-
-    bool showQuickUnlock = false;
-#if defined(Q_OS_MACOS)
-    showQuickUnlock = TouchID::getInstance().isAvailable();
-#elif defined(Q_CC_MSVC)
-    showQuickUnlock = getWindowsHello()->isAvailable();
-    connect(getWindowsHello(), &WindowsHello::availableChanged, m_secUi->quickUnlockCheckBox, &QCheckBox::setVisible);
-#endif
-    m_secUi->quickUnlockCheckBox->setVisible(showQuickUnlock);
 }
 
 ApplicationSettingsWidget::~ApplicationSettingsWidget() = default;
@@ -323,6 +314,14 @@ void ApplicationSettingsWidget::loadSettings()
     m_secUi->EnableCopyOnDoubleClickCheckBox->setChecked(
         config()->get(Config::Security_EnableCopyOnDoubleClick).toBool());
 
+    bool quickUnlockAvailable = false;
+#if defined(Q_OS_MACOS)
+    quickUnlockAvailable = TouchID::getInstance().isAvailable();
+#elif defined(Q_CC_MSVC)
+    quickUnlockAvailable = getWindowsHello()->isAvailable();
+    connect(getWindowsHello(), &WindowsHello::availableChanged, m_secUi->quickUnlockCheckBox, &QCheckBox::setEnabled);
+#endif
+    m_secUi->quickUnlockCheckBox->setEnabled(quickUnlockAvailable);
     m_secUi->quickUnlockCheckBox->setChecked(config()->get(Config::Security_QuickUnlock).toBool());
 
     for (const ExtraPage& page : asConst(m_extraPages)) {
@@ -435,7 +434,9 @@ void ApplicationSettingsWidget::saveSettings()
                   m_secUi->NoConfirmMoveEntryToRecycleBinCheckBox->isChecked());
     config()->set(Config::Security_EnableCopyOnDoubleClick, m_secUi->EnableCopyOnDoubleClickCheckBox->isChecked());
 
-    config()->set(Config::Security_QuickUnlock, m_secUi->quickUnlockCheckBox->isChecked());
+    if (m_secUi->quickUnlockCheckBox->isEnabled()) {
+        config()->set(Config::Security_QuickUnlock, m_secUi->quickUnlockCheckBox->isChecked());
+    }
 
     // Security: clear storage if related settings are disabled
     if (!config()->get(Config::RememberLastDatabases).toBool()) {

src/gui/DatabaseOpenDialog.cpp

@@ -80,6 +80,16 @@ DatabaseOpenDialog::DatabaseOpenDialog(QWidget* parent)
     connect(shortcut, &QShortcut::activated, this, [this]() { selectTabOffset(1); });
 }
 
+void DatabaseOpenDialog::showEvent(QShowEvent* event)
+{
+    QDialog::showEvent(event);
+    QTimer::singleShot(100, this, [=] {
+        if (m_view->isOnQuickUnlockScreen() && !m_view->unlockingDatabase()) {
+            m_view->triggerQuickUnlock();
+        }
+    });
+}
+
 void DatabaseOpenDialog::selectTabOffset(int offset)
 {
     if (offset == 0 || m_tabBar->count() <= 1) {

src/gui/DatabaseOpenDialog.h

@@ -58,6 +58,9 @@ public slots:
     void complete(bool accepted);
     void tabChanged(int index);
 
+protected:
+    void showEvent(QShowEvent* event) override;
+
 private:
     void selectTabOffset(int offset);
 

src/gui/DatabaseOpenWidget.cpp

@@ -139,6 +139,7 @@ DatabaseOpenWidget::DatabaseOpenWidget(QWidget* parent)
     // QuickUnlock actions
     connect(m_ui->quickUnlockButton, &QPushButton::pressed, this, [this] { openDatabase(); });
     connect(m_ui->resetQuickUnlockButton, &QPushButton::pressed, this, [this] { resetQuickUnlock(); });
+    m_ui->resetQuickUnlockButton->setShortcut(Qt::Key_Escape);
 }
 
 DatabaseOpenWidget::~DatabaseOpenWidget() = default;
@@ -284,7 +285,11 @@ void DatabaseOpenWidget::openDatabase()
             auto keyData = databaseKey->serialize();
 #if defined(Q_CC_MSVC)
             // Store the password using Windows Hello
-            getWindowsHello()->storeKey(m_filename, keyData);
+            if (!getWindowsHello()->storeKey(m_filename, keyData)) {
+                getMainWindow()->displayTabMessage(
+                    tr("Windows Hello setup was canceled or failed. Quick unlock has not been enabled."),
+                    MessageWidget::MessageType::Warning);
+            }
 #elif defined(Q_OS_MACOS)
             // Store the password using TouchID
             TouchID::getInstance().storeKey(m_filename, keyData);
@@ -534,6 +539,13 @@ bool DatabaseOpenWidget::isOnQuickUnlockScreen()
     return m_ui->centralStack->currentIndex() == 1;
 }
 
+void DatabaseOpenWidget::triggerQuickUnlock()
+{
+    if (isOnQuickUnlockScreen()) {
+        m_ui->quickUnlockButton->click();
+    }
+}
+
 /**
  * Reset installed quick unlock secrets.
  *

src/gui/DatabaseOpenWidget.h

@@ -45,9 +45,13 @@ class DatabaseOpenWidget : public DialogyWidget
     void clearForms();
     void enterKey(const QString& pw, const QString& keyFile);
     QSharedPointer<Database> database();
-    void resetQuickUnlock();
     bool unlockingDatabase();
 
+    // Quick Unlock helper functions
+    bool isOnQuickUnlockScreen();
+    void triggerQuickUnlock();
+    void resetQuickUnlock();
+
 signals:
     void dialogFinished(bool accepted);
 
@@ -56,8 +60,6 @@ class DatabaseOpenWidget : public DialogyWidget
     void hideEvent(QHideEvent* event) override;
     QSharedPointer<CompositeKey> buildDatabaseKey();
     void setUserInteractionLock(bool state);
-    // Quick Unlock helper functions
-    bool isOnQuickUnlockScreen();
 
     const QScopedPointer<Ui::DatabaseOpenWidget> m_ui;
     QSharedPointer<Database> m_db;