Show countdown for clipboard clearing (#6333)

* Closes #1843

Co-authored-by: Jonathan White <support@dmapps.us>

src/gui/Clipboard.cpp

@@ -39,8 +39,7 @@ Clipboard::Clipboard(QObject* parent)
         m_pasteboard = new MacPasteboard();
     }
 #endif
-    m_timer->setSingleShot(true);
+    connect(m_timer, SIGNAL(timeout()), SLOT(countdownTick()));
-    connect(m_timer, SIGNAL(timeout()), SLOT(clearClipboard()));
     connect(qApp, SIGNAL(aboutToQuit()), SLOT(clearCopiedText()));
 }
 
@@ -77,7 +76,9 @@ void Clipboard::setText(const QString& text, bool clear)
         if (config()->get(Config::Security_ClearClipboard).toBool()) {
             int timeout = config()->get(Config::Security_ClearClipboardTimeout).toInt();
             if (timeout > 0) {
-                m_timer->start(timeout * 1000);
+                m_secondsElapsed = -1;
+                countdownTick();
+                m_timer->start(1000);
             }
         }
     }
@@ -85,15 +86,9 @@ void Clipboard::setText(const QString& text, bool clear)
 
 void Clipboard::clearCopiedText()
 {
-    if (m_timer->isActive()) {
+    m_timer->stop();
-        m_timer->stop();
+    emit updateCountdown(-1, "");
-    }
 
-    clearClipboard();
-}
-
-void Clipboard::clearClipboard()
-{
     auto* clipboard = QApplication::clipboard();
     if (!clipboard) {
         qWarning("Unable to access the clipboard.");
@@ -108,6 +103,19 @@ void Clipboard::clearClipboard()
     m_lastCopied.clear();
 }
 
+void Clipboard::countdownTick()
+{
+    m_secondsElapsed++;
+    int timeout = config()->get(Config::Security_ClearClipboardTimeout).toInt();
+    int timeLeft = timeout - m_secondsElapsed;
+    if (timeLeft <= 0) {
+        clearCopiedText();
+    } else {
+        emit updateCountdown(100 * timeLeft / timeout,
+                             QObject::tr("Clearing the clipboard in %1 second(s)…", "", timeLeft).arg(timeLeft));
+    }
+}
+
 Clipboard* Clipboard::instance()
 {
     if (!m_instance) {

src/gui/Clipboard.h

@@ -19,6 +19,7 @@
 #ifndef KEEPASSX_CLIPBOARD_H
 #define KEEPASSX_CLIPBOARD_H
 
+#include <QElapsedTimer>
 #include <QObject>
 #ifdef Q_OS_MACOS
 #include "core/MacPasteboard.h"
@@ -39,8 +40,11 @@ public:
 public slots:
     void clearCopiedText();
 
+signals:
+    void updateCountdown(int percentage, QString message);
+
 private slots:
-    void clearClipboard();
+    void countdownTick();
 
 private:
     explicit Clipboard(QObject* parent = nullptr);
@@ -48,6 +52,8 @@ private:
     static Clipboard* m_instance;
 
     QTimer* m_timer;
+    int m_secondsElapsed = 0;
+
 #ifdef Q_OS_MACOS
     // This object lives for the whole program lifetime and we cannot delete it on exit,
     // so ignore leak warnings. See https://bugreports.qt.io/browse/QTBUG-54832

src/gui/MainWindow.cpp

@@ -623,6 +623,19 @@ MainWindow::MainWindow()
     connect(qApp, SIGNAL(openFile(QString)), this, SLOT(openDatabase(QString)));
     connect(qApp, SIGNAL(quitSignalReceived()), this, SLOT(appExit()), Qt::DirectConnection);
 
+    statusBar()->setFixedHeight(24);
+    m_progressBarLabel = new QLabel(statusBar());
+    m_progressBarLabel->setVisible(false);
+    statusBar()->addPermanentWidget(m_progressBarLabel);
+    m_progressBar = new QProgressBar(statusBar());
+    m_progressBar->setVisible(false);
+    m_progressBar->setTextVisible(false);
+    m_progressBar->setMaximumWidth(100);
+    m_progressBar->setFixedHeight(15);
+    m_progressBar->setMaximum(100);
+    statusBar()->addPermanentWidget(m_progressBar);
+    connect(clipboard(), SIGNAL(updateCountdown(int, QString)), this, SLOT(updateProgressBar(int, QString)));
+
     restoreConfigState();
 }
 
@@ -1388,6 +1401,19 @@ void MainWindow::updateTrayIcon()
     QApplication::setQuitOnLastWindowClosed(!isTrayIconEnabled());
 }
 
+void MainWindow::updateProgressBar(int percentage, QString message)
+{
+    if (percentage < 0) {
+        m_progressBar->setVisible(false);
+        m_progressBarLabel->setVisible(false);
+    } else {
+        m_progressBar->setValue(percentage);
+        m_progressBar->setVisible(true);
+        m_progressBarLabel->setText(message);
+        m_progressBarLabel->setVisible(true);
+    }
+}
+
 void MainWindow::obtainContextFocusLock()
 {
     m_contextMenuFocusLock = true;

src/gui/MainWindow.h

@@ -20,11 +20,15 @@
 #define KEEPASSX_MAINWINDOW_H
 
 #include <QActionGroup>
+#include <QLabel>
 #include <QMainWindow>
+#include <QProgressBar>
+#include <QStatusBar>
 #include <QSystemTrayIcon>
 
 #include "core/SignalMultiplexer.h"
 #include "gui/Application.h"
+#include "gui/Clipboard.h"
 #include "gui/DatabaseWidget.h"
 #include "gui/osutils/ScreenLockListener.h"
 
@@ -143,6 +147,7 @@ private slots:
     void releaseContextFocusLock();
     void agentEnabled(bool enabled);
     void updateTrayIcon();
+    void updateProgressBar(int percentage, QString message);
 
 private:
     static void setShortcut(QAction* action, QKeySequence::StandardKey standard, int fallback = 0);
@@ -174,6 +179,8 @@ private:
     QPointer<QSystemTrayIcon> m_trayIcon;
     QPointer<ScreenLockListener> m_screenLockListener;
     QPointer<SearchWidget> m_searchWidget;
+    QPointer<QProgressBar> m_progressBar;
+    QPointer<QLabel> m_progressBarLabel;
 
     Q_DISABLE_COPY(MainWindow)
 

src/gui/styles/base/basestyle.qss

@@ -69,3 +69,7 @@ QPlainTextEdit, QTextEdit {
     background-color: palette(base);
     padding-left: 4px;
 }
+
+QStatusBar {
+    background-color: palette(window);
+}

src/gui/styles/dark/DarkStyle.cpp

@@ -21,6 +21,7 @@
 #include <QDialog>
 #include <QMainWindow>
 #include <QMenuBar>
+#include <QStatusBar>
 #include <QToolBar>
 
 DarkStyle::DarkStyle()
@@ -110,7 +111,7 @@ QString DarkStyle::getAppStyleSheet() const
 void DarkStyle::polish(QWidget* widget)
 {
     if (qobject_cast<QMainWindow*>(widget) || qobject_cast<QDialog*>(widget) || qobject_cast<QMenuBar*>(widget)
-        || qobject_cast<QToolBar*>(widget)) {
+        || qobject_cast<QToolBar*>(widget) || qobject_cast<QStatusBar*>(widget)) {
         auto palette = widget->palette();
 #if defined(Q_OS_MACOS)
         if (!osUtils->isDarkMode()) {

src/gui/styles/light/LightStyle.cpp

@@ -22,6 +22,7 @@
 #include <QDialog>
 #include <QMainWindow>
 #include <QMenuBar>
+#include <QStatusBar>
 #include <QToolBar>
 
 LightStyle::LightStyle()
@@ -111,7 +112,7 @@ QString LightStyle::getAppStyleSheet() const
 void LightStyle::polish(QWidget* widget)
 {
     if (qobject_cast<QMainWindow*>(widget) || qobject_cast<QDialog*>(widget) || qobject_cast<QMenuBar*>(widget)
-        || qobject_cast<QToolBar*>(widget)) {
+        || qobject_cast<QToolBar*>(widget) || qobject_cast<QStatusBar*>(widget)) {
         auto palette = widget->palette();
 #if defined(Q_OS_MACOS)
         if (osUtils->isDarkMode()) {