6 files changed, 90 insertions, 6 deletions
diff --git a/Swift/QtUI/QtChatWindow.cpp b/Swift/QtUI/QtChatWindow.cpp
index c509ab3..48d331e 100644
--- a/Swift/QtUI/QtChatWindow.cpp
+++ b/Swift/QtUI/QtChatWindow.cpp
@@ -36,6 +36,7 @@
 #include <QTextDocument>
 #include <QTextEdit>
 #include <QTime>
+#include <QTimer>
 #include <QToolButton>
 #include <QUrl>
 
@@ -189,9 +190,20 @@ QtChatWindow::QtChatWindow(const QString& contact, QtChatTheme* theme, UIEventSt
     settings_->onSettingChanged.connect(boost::bind(&QtChatWindow::handleSettingChanged, this, _1));
     messageLog_->showEmoticons(settings_->getSetting(QtUISettingConstants::SHOW_EMOTICONS));
     setMinimumSize(100, 100);
+
+    dayChangeTimer = new QTimer(this);
+    dayChangeTimer->setSingleShot(true);
+    connect(dayChangeTimer, &QTimer::timeout, [this](){
+        addSystemMessage(ChatMessage(Q2PSTRING(tr("The day is now %1").arg(QDateTime::currentDateTime().date().toString(Qt::SystemLocaleLongDate)))), ChatWindow::DefaultDirection);
+        onContinuationsBroken();
+        resetDayChangeTimer();
+    });
+
+    resetDayChangeTimer();
 }
 
 QtChatWindow::~QtChatWindow() {
+    dayChangeTimer->stop();
     settings_->onSettingChanged.disconnect(boost::bind(&QtChatWindow::handleSettingChanged, this, _1));
     if (mucConfigurationWindow_) {
         delete mucConfigurationWindow_.data();
@@ -206,7 +218,7 @@ void QtChatWindow::handleSettingChanged(const std::string& setting) {
 }
 
 void QtChatWindow::handleLogCleared() {
-    onLogCleared();
+    onContinuationsBroken();
 }
 
 void QtChatWindow::handleOccupantSelectionChanged(RosterItem* item) {
@@ -656,6 +668,12 @@ std::vector<JID> QtChatWindow::jidListFromQByteArray(const QByteArray& dataBytes
     return invites;
 }
 
+void QtChatWindow::resetDayChangeTimer() {
+    assert(dayChangeTimer);
+    // Add a second so the handled is definitly called on the next day, and not multiple times exactly at midnight.
+    dayChangeTimer->start(QtUtilities::secondsToNextMidnight(QDateTime::currentDateTime()) * 1000 + 1000);
+}
+
 void QtChatWindow::setAvailableOccupantActions(const std::vector<OccupantAction>& actions) {
     treeWidget_->setAvailableOccupantActions(actions);
 }
diff --git a/Swift/QtUI/QtChatWindow.h b/Swift/QtUI/QtChatWindow.h
index 46186ba..361d7c6 100644
--- a/Swift/QtUI/QtChatWindow.h
+++ b/Swift/QtUI/QtChatWindow.h
@@ -192,6 +192,8 @@ namespace Swift {
 
             static std::vector<JID> jidListFromQByteArray(const QByteArray& dataBytes);
 
+            void resetDayChangeTimer();
+
         private:
             int unreadCount_;
             bool contactIsTyping_;
@@ -219,7 +221,7 @@ namespace Swift {
             bool tabCompletion_;
             UIEventStream* eventStream_;
             bool isOnline_;
-            QSplitter *logRosterSplitter_;
+            QSplitter* logRosterSplitter_;
             Tristate correctionEnabled_;
             Tristate fileTransferEnabled_;
             QString alertStyleSheet_;
@@ -238,5 +240,6 @@ namespace Swift {
             std::unique_ptr<QMenu> emojisMenu_;
             QPointer<QtEmojisSelector> emojisGrid_;
             std::map<std::string, std::string> emoticonsMap_;
+            QTimer* dayChangeTimer = nullptr;
     };
 }
diff --git a/Swift/QtUI/QtUtilities.cpp b/Swift/QtUI/QtUtilities.cpp
index 401af17..6eb0b04 100644
--- a/Swift/QtUI/QtUtilities.cpp
+++ b/Swift/QtUI/QtUtilities.cpp
@@ -1,10 +1,10 @@
 /*
- * Copyright (c) 2010-2015 Isode Limited.
+ * Copyright (c) 2010-2017 Isode Limited.
  * All rights reserved.
  * See the COPYING file for more information.
  */
 
-#include "QtUtilities.h"
+#include <Swift/QtUI/QtUtilities.h>
 
 #include <QtGui>
 #if defined (Q_OS_UNIX) && !defined(Q_OS_MAC)
@@ -14,8 +14,9 @@
 #endif
 #include <QTextDocument>
 #include <QWidget>
+#include <QDateTime>
 
-#include "Swift/Controllers/ApplicationInfo.h"
+#include <Swift/Controllers/ApplicationInfo.h>
 
 namespace QtUtilities {
 
@@ -42,4 +43,12 @@ QString htmlEscape(const QString& s) {
 #endif
 }
 
+long long secondsToNextMidnight(const QDateTime& currentTime) {
+    auto secondsToMidnight = 0ll;
+    auto nextMidnight = currentTime.addDays(1);
+    nextMidnight.setTime(QTime(0,0));
+    secondsToMidnight = currentTime.secsTo(nextMidnight);
+    return secondsToMidnight;
+}
+
 }
diff --git a/Swift/QtUI/QtUtilities.h b/Swift/QtUI/QtUtilities.h
index ad58499..c6f4311 100644
--- a/Swift/QtUI/QtUtilities.h
+++ b/Swift/QtUI/QtUtilities.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2010-2013 Isode Limited.
+ * Copyright (c) 2010-2017 Isode Limited.
  * All rights reserved.
  * See the COPYING file for more information.
  */
@@ -8,6 +8,7 @@
 
 class QWidget;
 class QString;
+class QDateTime;
 
 #include <QKeyEvent>
 
@@ -19,4 +20,12 @@ namespace QtUtilities {
     #else
     const Qt::KeyboardModifier ctrlHardwareKeyModifier = Qt::ControlModifier;
     #endif
+
+    /**
+     * @brief secondsToNextMidnight calculates the seconds until next midnight.
+     * @param currentTime This is the current time, which SHOULD have a Qt::TimeSpec
+     * of Qt::LocalTime to correctly handle DST changes in the current locale.
+     * @return
+     */
+    long long secondsToNextMidnight(const QDateTime& currentTime);
 }
diff --git a/Swift/QtUI/SConscript b/Swift/QtUI/SConscript
index 2f95b3e..3ce2057 100644
--- a/Swift/QtUI/SConscript
+++ b/Swift/QtUI/SConscript
@@ -71,6 +71,21 @@ if env["PLATFORM"] != "win32" and env["PLATFORM"] != "darwin" :
 
 myenv.EnableQt4Modules(qt4modules, debug = False, version = qt_version)
 
+
+## Qt related unit tests
+testQtEnv = env.Clone();
+testQtEnv.Tool("qt4", toolpath = ["#/BuildTools/SCons/Tools"])
+testQtEnv.EnableQt4Modules(qt4modules, debug = False, version = qt_version)
+env["SWIFT_QTUI_TEST_FLAGS"] = {
+    "CPPFLAGS": testQtEnv["CPPFLAGS"],
+    "LIBS": testQtEnv["LIBS"],
+    "LINKFLAGS": testQtEnv["LINKFLAGS"],
+}
+
+env.Append(UNITTEST_SOURCES = [
+    File("UnitTest/QtUtilitiesTest.cpp")
+])
+
 myenv.Append(CPPPATH = ["."])
 
 # Qt requires applications to be build with the -fPIC flag on some 32-bit Linux distributions.
diff --git a/Swift/QtUI/UnitTest/QtUtilitiesTest.cpp b/Swift/QtUI/UnitTest/QtUtilitiesTest.cpp
new file mode 100644
index 0000000..45d2239
--- /dev/null
+++ b/Swift/QtUI/UnitTest/QtUtilitiesTest.cpp
@@ -0,0 +1,30 @@
+/*
+ * Copyright (c) 2017 Isode Limited.
+ * All rights reserved.
+ * See the COPYING file for more information.
+ */
+
+#include <gtest/gtest.h>
+
+#include <QDateTime>
+#include <QLocale>
+
+#include <Swift/QtUI/QtUtilities.h>
+#include <Swift/QtUI/QtUtilities.cpp>
+
+TEST(QtUtilitiesTest, testDSTawareness) {
+    QLocale::setDefault(QLocale(QLocale::English, QLocale::Germany));
+
+    auto beforeDSTpoint = QDateTime(QDate(2017, 3, 26), QTime(0, 0));
+
+    ASSERT_EQ(23 * 60 * 60, QtUtilities::secondsToNextMidnight(beforeDSTpoint));
+}
+
+
+TEST(QtUtilitiesTest, testNoDSTChange) {
+    QLocale::setDefault(QLocale(QLocale::English, QLocale::Germany));
+
+    auto beforeDSTpoint = QDateTime(QDate(2017, 3, 23), QTime(0, 0));
+
+    ASSERT_EQ(24 * 60 * 60, QtUtilities::secondsToNextMidnight(beforeDSTpoint));
+}