Merge remote-tracking branch 'origin/5.6' into 5.7

Change-Id: Ibd81cd1df4a0650d93fcb556a57be90be2e1f569

doc/global/externalsites/external-resources.qdoc

@@ -174,7 +174,7 @@
 */
 
 /*!
-    \externalpage http://code.google.com/p/angleproject/
+    \externalpage https://chromium.googlesource.com/angle/angle/+/master/README.md
     \title ANGLE
 */
 

examples/network/torrent/connectionmanager.cpp

@@ -88,7 +88,7 @@ QByteArray ConnectionManager::clientId() const
         // Generate peer id
         int startupTime = int(QDateTime::currentDateTime().toTime_t());
 
-        id += QString::asprintf("-QT%04x-", (QT_VERSION % 0xffff00) >> 8).toLatin1();
+        id += QString::asprintf("-QT%04x-", QT_VERSION >> 8).toLatin1();
         id += QByteArray::number(startupTime, 10);
         id += QByteArray(20 - id.size(), '-');
     }

mkspecs/common/clang.conf

@@ -40,5 +40,5 @@ QMAKE_LFLAGS_LTCG       = $$QMAKE_CFLAGS_LTCG
 
 # Wrapper tools that understand .o/.a files with LLVM bytecode instead of machine code
 QMAKE_AR_LTCG           = llvm-ar cqs
-QMAKE_NM_LTCG           = gcc-nm -P
+QMAKE_NM_LTCG           = llvm-nm -P
 QMAKE_RANLIB_LTCG       = true      # No need to run, since llvm-ar has "s"

mkspecs/common/winrt_winphone/manifests/10.0/AppxManifest.xml.in

@@ -22,7 +22,7 @@
   </Properties>
 
   <Dependencies>
-    <TargetDeviceFamily Name=\"Windows.Universal\" MinVersion=\"10.0.10240.0\" MaxVersionTested=\"10.0.10586.0\" />$${WINRT_MANIFEST.dependencies}
+    <TargetDeviceFamily Name=\"Windows.Universal\" MinVersion=\"10.0.10586.0\" MaxVersionTested=\"10.0.10586.0\" />$${WINRT_MANIFEST.dependencies}
   </Dependencies>
 
   <Resources>

mkspecs/netbsd-g++/qmake.conf

@@ -17,6 +17,9 @@ QMAKE_LIBDIR_X11        = /usr/X11R7/lib
 QMAKE_INCDIR_OPENGL     = /usr/X11R7/include
 QMAKE_LIBDIR_OPENGL     = /usr/X11R7/lib
 
+# NetBSD requires rpath to be used for all lib dirs, see http://www.netbsd.org/docs/elf.html
+QMAKE_RPATHDIR         += $$QMAKE_LIBDIR $$QMAKE_LIBDIR_X11
+
 include(../common/gcc-base-unix.conf)
 include(../common/g++-unix.conf)
 load(qt_config)

qmake/library/qmakeevaluator.h

@@ -177,7 +177,6 @@ class QMAKE_EXPORT QMakeEvaluator
     void setTemplate();
 
     ProStringList split_value_list(const QString &vals, const ProFile *source = 0);
-    ProStringList expandVariableReferences(const ProString &value, int *pos = 0, bool joined = false);
     ProStringList expandVariableReferences(const ushort *&tokPtr, int sizeHint = 0, bool joined = false);
 
     QString currentFileName() const;

src/angle/README.qt

@@ -1,6 +1,6 @@
 This is the ANGLE project from:
 
-http://code.google.com/p/angleproject/
+https://chromium.googlesource.com/angle/angle/+/master/README.md
 
 The upstream version used here can be found in:
 

src/corelib/io/qdir.cpp

@@ -692,7 +692,7 @@ QString QDir::filePath(const QString &fileName) const
 {
     const QDirPrivate* d = d_ptr.constData();
     if (isAbsolutePath(fileName))
-        return QString(fileName);
+        return fileName;
 
     QString ret = d->dirEntry.filePath();
     if (!fileName.isEmpty()) {

src/corelib/io/qsettings_winrt.cpp

@@ -92,7 +92,7 @@ static IApplicationDataContainer *subContainer(IApplicationDataContainer *parent
     if (FAILED(hr))
         return 0;
 
-    while (SUCCEEDED(S_OK) && current) {
+    while (SUCCEEDED(hr) && current) {
         ComPtr<ContainerItem> item;
         hr = iterator->get_Current(&item);
         if (FAILED(hr))

src/corelib/io/qurl.cpp

@@ -984,10 +984,12 @@ inline bool QUrlPrivate::setScheme(const QString &value, int len, bool doSetErro
             needsLowercasing = i;
             continue;
         }
-        if (p[i] >= '0' && p[i] <= '9' && i > 0)
-            continue;
-        if (p[i] == '+' || p[i] == '-' || p[i] == '.')
-            continue;
+        if (i) {
+            if (p[i] >= '0' && p[i] <= '9')
+                continue;
+            if (p[i] == '+' || p[i] == '-' || p[i] == '.')
+                continue;
+        }
 
         // found something else
         // don't call setError needlessly:

src/corelib/json/qjsondocument.cpp

@@ -357,16 +357,14 @@ QByteArray QJsonDocument::toJson(JsonFormat format) const
 #endif
 
 /*!
- Parses a UTF-8 encoded JSON document and creates a QJsonDocument
+ Parses \a json as a UTF-8 encoded JSON document, and creates a QJsonDocument
  from it.
 
- \a json contains the json document to be parsed.
+ Returns a valid (non-null) QJsonDocument if the parsing succeeds. If it fails,
+ the returned document will be null, and the optional \a error variable will contain
+ further details about the error.
 
- The optional \a error variable can be used to pass in a QJsonParseError data
- structure that will contain information about possible errors encountered during
- parsing.
-
- \sa toJson(), QJsonParseError
+ \sa toJson(), QJsonParseError, isNull()
  */
 QJsonDocument QJsonDocument::fromJson(const QByteArray &json, QJsonParseError *error)
 {

src/corelib/kernel/qcore_unix_p.h

@@ -79,6 +79,10 @@
 #include <errno.h>
 #include <fcntl.h>
 
+#if !defined(QT_POSIX_IPC) && !defined(QT_NO_SHAREDMEMORY) && !defined(Q_OS_ANDROID)
+#  include <sys/ipc.h>
+#endif
+
 #if defined(Q_OS_VXWORKS)
 #  include <ioLib.h>
 #endif

src/corelib/kernel/qeventloop.cpp

@@ -188,8 +188,10 @@ int QEventLoop::exec(ProcessEventsFlags flags)
         {
             if (exceptionCaught) {
                 qWarning("Qt has caught an exception thrown from an event handler. Throwing\n"
-                         "exceptions from an event handler is not supported in Qt. You must\n"
-                         "reimplement QApplication::notify() and catch all exceptions there.\n");
+                         "exceptions from an event handler is not supported in Qt.\n"
+                         "You must not let any exception whatsoever propagate through Qt code.\n"
+                         "If that is not possible, in Qt 5 you must at least reimplement\n"
+                         "QCoreApplication::notify() and catch all exceptions there.\n");
             }
             locker.relock();
             QEventLoop *eventLoop = d->threadData->eventLoops.pop();

src/corelib/tools/qdatetime.cpp

@@ -2721,7 +2721,7 @@ qint64 QDateTimePrivate::toMSecsSinceEpoch() const
 
     case Qt::TimeZone:
 #ifdef QT_BOOTSTRAPPED
-        break;
+        return 0;
 #else
         return zoneMSecsToEpochMSecs(m_msecs, m_timeZone);
 #endif
@@ -4782,7 +4782,12 @@ QDataStream &operator>>(QDataStream &in, QDate &date)
 
 QDataStream &operator<<(QDataStream &out, const QTime &time)
 {
-    return out << quint32(time.mds);
+    if (out.version() >= QDataStream::Qt_4_0) {
+        return out << quint32(time.mds);
+    } else {
+        // Qt3 had no support for reading -1, QTime() was valid and serialized as 0
+        return out << quint32(time.isNull() ? 0 : time.mds);
+    }
 }
 
 /*!
@@ -4797,7 +4802,12 @@ QDataStream &operator>>(QDataStream &in, QTime &time)
 {
     quint32 ds;
     in >> ds;
-    time.mds = int(ds);
+    if (in.version() >= QDataStream::Qt_4_0) {
+        time.mds = int(ds);
+    } else {
+        // Qt3 would write 0 for a null time
+        time.mds = (ds == 0) ? QTime::NullTime : int(ds);
+    }
     return in;
 }
 

src/network/socket/qnativesocketengine_unix.cpp

@@ -902,10 +902,7 @@ qint64 QNativeSocketEnginePrivate::nativeReceiveDatagram(char *data, qint64 maxS
             if (cmsgptr->cmsg_level == IPPROTO_IP && cmsgptr->cmsg_type == IP_RECVIF
                     && cmsgptr->cmsg_len >= CMSG_LEN(sizeof(sockaddr_dl))) {
                 sockaddr_dl *sdl = reinterpret_cast<sockaddr_dl *>(CMSG_DATA(cmsgptr));
-#    if defined(Q_OS_OPENBSD)
-#      define LLINDEX(s) ((s)->sdl_index)
-#    endif
-                header->ifindex = LLINDEX(sdl);
+                header->ifindex = sdl->sdl_index;
             }
 #  endif
 #endif

src/network/ssl/qsslsocket.cpp

@@ -55,7 +55,8 @@
     QSslSocket establishes a secure, encrypted TCP connection you can
     use for transmitting encrypted data. It can operate in both client
     and server mode, and it supports modern SSL protocols, including
-    SSLv3 and TLSv1_0. By default, QSslSocket uses TLSv1_0, but you can
+    SSL 3 and TLS 1.2. By default, QSslSocket uses only SSL protocols
+    which are considered to be secure (QSsl::SecureProtocols), but you can
     change the SSL protocol by calling setProtocol() as long as you do
     it before the handshake has started.
 

src/network/ssl/qsslsocket_mac.cpp

@@ -617,7 +617,7 @@ void QSslSocketBackendPrivate::transmit()
 
     if (connectionEncrypted && !writeBuffer.isEmpty()) {
         qint64 totalBytesWritten = 0;
-        while (writeBuffer.nextDataBlockSize() > 0) {
+        while (writeBuffer.nextDataBlockSize() > 0 && context) {
             const size_t nextDataBlockSize = writeBuffer.nextDataBlockSize();
             size_t writtenBytes = 0;
             const OSStatus err = SSLWrite(context, writeBuffer.readPointer(), nextDataBlockSize, &writtenBytes);
@@ -652,7 +652,7 @@ void QSslSocketBackendPrivate::transmit()
 
     if (connectionEncrypted) {
         QVarLengthArray<char, 4096> data;
-        while (true) {
+        while (context) {
             size_t readBytes = 0;
             data.resize(4096);
             const OSStatus err = SSLRead(context, data.data(), data.size(), &readBytes);
@@ -1296,7 +1296,10 @@ bool QSslSocketBackendPrivate::verifyPeerTrust()
     // report errors
     if (!errors.isEmpty() && !canIgnoreVerify) {
         sslErrors = errors;
-        if (!checkSslErrors())
+        // checkSslErrors unconditionally emits sslErrors:
+        // a user's slot can abort/close/disconnect on this
+        // signal, so we also test the socket's state:
+        if (!checkSslErrors() || q->state() != QAbstractSocket::ConnectedState)
             return false;
     } else {
         sslErrors.clear();

src/plugins/platforms/windows/qwindowscontext.cpp

@@ -415,7 +415,9 @@ void QWindowsContext::setProcessDpiAwareness(QtWindows::ProcessDpiAwareness dpiA
     qCDebug(lcQpaWindows) << __FUNCTION__ << dpiAwareness;
     if (QWindowsContext::shcoredll.isValid()) {
         const HRESULT hr = QWindowsContext::shcoredll.setProcessDpiAwareness(dpiAwareness);
-        if (FAILED(hr)) {
+        // E_ACCESSDENIED means set externally (MSVC manifest or external app loading Qt plugin).
+        // Silence warning in that case unless debug is enabled.
+        if (FAILED(hr) && (hr != E_ACCESSDENIED || lcQpaWindows().isDebugEnabled())) {
             qWarning().noquote().nospace() << "SetProcessDpiAwareness("
                 << dpiAwareness << ") failed: " << QWindowsContext::comErrorString(hr)
                 << ", using " << QWindowsContext::processDpiAwareness();
@@ -849,6 +851,9 @@ QByteArray QWindowsContext::comErrorString(HRESULT hr)
     case E_UNEXPECTED:
         result += QByteArrayLiteral("E_UNEXPECTED");
         break;
+    case E_ACCESSDENIED:
+        result += QByteArrayLiteral("E_ACCESSDENIED");
+        break;
     case CO_E_ALREADYINITIALIZED:
         result += QByteArrayLiteral("CO_E_ALREADYINITIALIZED");
         break;

src/plugins/platforms/windows/qwindowseglcontext.cpp

@@ -371,7 +371,7 @@ QSurfaceFormat QWindowsEGLStaticContext::formatFromConfig(EGLDisplay display, EG
     \list
     \o Install the Direct X SDK
     \o Checkout and build ANGLE (SVN repository) as explained here:
-       \l{http://code.google.com/p/angleproject/wiki/DevSetup}{ANGLE-Project}.
+       \l{https://chromium.googlesource.com/angle/angle/+/master/README.md}
        When building for 64bit, de-activate the "WarnAsError" option
        in every project file (as otherwise integer conversion
        warnings will break the build).

src/plugins/platforms/winrt/qwinrtdrag.cpp

@@ -504,8 +504,8 @@ static HRESULT qt_drop(IInspectable *sender, ABI::Windows::UI::Xaml::IDragEventA
 class QtDragEventHandler##name : public IDragEventHandler \
 { \
 public: \
-    virtual HRESULT STDMETHODCALLTYPE Invoke(IInspectable *sender, \
-                            ABI::Windows::UI::Xaml::IDragEventArgs *e) \
+    STDMETHODIMP Invoke(IInspectable *sender, \
+                        ABI::Windows::UI::Xaml::IDragEventArgs *e) \
     { \
         return qt_##func(sender, e);\
     } \

src/plugins/platforms/xcb/qxcbkeyboard.cpp

@@ -979,10 +979,21 @@ QList<int> QXcbKeyboard::possibleKeys(const QKeyEvent *event) const
     xkb_layout_index_t lockedLayout = xkb_state_serialize_layout(xkb_state, XKB_STATE_LAYOUT_LOCKED);
     xkb_mod_mask_t latchedMods = xkb_state_serialize_mods(xkb_state, XKB_STATE_MODS_LATCHED);
     xkb_mod_mask_t lockedMods = xkb_state_serialize_mods(xkb_state, XKB_STATE_MODS_LOCKED);
+    xkb_mod_mask_t depressedMods = xkb_state_serialize_mods(xkb_state, XKB_STATE_MODS_DEPRESSED);
 
-    xkb_state_update_mask(kb_state, 0, latchedMods, lockedMods, 0, 0, lockedLayout);
-
+    xkb_state_update_mask(kb_state, depressedMods, latchedMods, lockedMods, 0, 0, lockedLayout);
     quint32 keycode = event->nativeScanCode();
+    // handle shortcuts for level three and above
+    xkb_layout_index_t layoutIndex = xkb_state_key_get_layout(kb_state, keycode);
+    xkb_level_index_t levelIndex = 0;
+    if (layoutIndex != XKB_LAYOUT_INVALID) {
+        levelIndex = xkb_state_key_get_level(kb_state, keycode, layoutIndex);
+        if (levelIndex == XKB_LEVEL_INVALID)
+            levelIndex = 0;
+    }
+    if (levelIndex <= 1)
+        xkb_state_update_mask(kb_state, 0, latchedMods, lockedMods, 0, 0, lockedLayout);
+
     xkb_keysym_t sym = xkb_state_key_get_one_sym(kb_state, keycode);
     if (sym == XKB_KEY_NoSymbol) {
         xkb_state_unref(kb_state);

src/plugins/platforms/xcb/qxcbmime.cpp

@@ -131,6 +131,11 @@ bool QXcbMime::mimeDataForAtom(QXcbConnection *connection, xcb_atom_t a, QMimeDa
         ret = true;
     } else if ((a == XCB_ATOM_PIXMAP || a == XCB_ATOM_BITMAP) && mimeData->hasImage()) {
         ret = true;
+    } else if (atomName == QLatin1String("text/plain")
+               && mimeData->hasFormat(QLatin1String("text/uri-list"))) {
+        // Return URLs also as plain text.
+        *data = QInternalMimeData::renderDataHelper(atomName, mimeData);
+        ret = true;
     }
     return ret;
 }
@@ -149,8 +154,10 @@ QVector<xcb_atom_t> QXcbMime::mimeAtomsForFormat(QXcbConnection *connection, con
     }
 
     // special cases for uris
-    if (format == QLatin1String("text/uri-list"))
+    if (format == QLatin1String("text/uri-list")) {
         atoms.append(connection->internAtom("text/x-moz-url"));
+        atoms.append(connection->internAtom("text/plain"));
+    }
 
     //special cases for images
     if (format == QLatin1String("image/ppm"))

src/printsupport/kernel/qprintengine_win.cpp

@@ -394,6 +394,9 @@ int QWin32PrintEngine::metric(QPaintDevice::PaintDeviceMetric m) const
     case QPaintDevice::PdmDevicePixelRatio:
         val = 1;
         break;
+    case QPaintDevice::PdmDevicePixelRatioScaled:
+        val = 1 * QPaintDevice::devicePixelRatioFScale();
+        break;
     default:
         qWarning("QPrinter::metric: Invalid metric command");
         return 0;

src/widgets/dialogs/qfilesystemmodel.cpp

@@ -87,7 +87,7 @@ QT_BEGIN_NAMESPACE
     about the underlying files and directories related to items in the model.
     Directories can be created and removed using mkdir(), rmdir().
 
-    \note QFileSystemModel requires an instance of a GUI application.
+    \note QFileSystemModel requires an instance of \l QApplication.
 
     \section1 Example Usage
 

src/widgets/itemviews/qdirmodel.cpp

@@ -212,7 +212,7 @@ void QDirModelPrivate::invalidate()
     Directories can be created and removed using mkdir(), rmdir(), and the
     model will be automatically updated to take the changes into account.
 
-    \note QDirModel requires an instance of a GUI application.
+    \note QDirModel requires an instance of \l QApplication.
 
     \sa nameFilters(), setFilter(), filter(), QListView, QTreeView, QFileSystemModel,
     {Dir View Example}, {Model Classes}

src/widgets/styles/qcommonstyle.cpp

@@ -5237,6 +5237,13 @@ static QPixmap cachedPixmapFromXPM(const char * const *xpm)
     return result;
 }
 
+#ifndef QT_NO_IMAGEFORMAT_PNG
+static inline QString clearText16IconPath()
+{
+    return QStringLiteral(":/qt-project.org/styles/commonstyle/images/cleartext-16.png");
+}
+#endif // !QT_NO_IMAGEFORMAT_PNG
+
 static QIcon clearTextIcon(bool rtl)
 {
     const QString directionalThemeName = rtl
@@ -5249,7 +5256,7 @@ static QIcon clearTextIcon(bool rtl)
 
     QIcon icon;
 #ifndef QT_NO_IMAGEFORMAT_PNG
-    QPixmap clearText16(QStringLiteral(":/qt-project.org/styles/commonstyle/images/cleartext-16.png"));
+    QPixmap clearText16(clearText16IconPath());
     Q_ASSERT(!clearText16.size().isEmpty());
     icon.addPixmap(clearText16);
     QPixmap clearText32(QStringLiteral(":/qt-project.org/styles/commonstyle/images/cleartext-32.png"));
@@ -5564,6 +5571,8 @@ QPixmap QCommonStyle::standardPixmap(StandardPixmap sp, const QStyleOption *opti
         return QPixmap(QLatin1String(":/qt-project.org/styles/commonstyle/images/media-volume-16.png"));
     case SP_MediaVolumeMuted:
         return QPixmap(QLatin1String(":/qt-project.org/styles/commonstyle/images/media-volume-muted-16.png"));
+    case SP_LineEditClearButton:
+        return QPixmap(clearText16IconPath());
 #endif // QT_NO_IMAGEFORMAT_PNG
     default:
         break;

src/widgets/widgets/qdockwidget.cpp

@@ -811,7 +811,8 @@ void QDockWidgetPrivate::endDrag(bool abort)
                 } else {
                     setResizerActive(false);
                 }
-                undockedGeometry = q->geometry();
+                if (q->isFloating()) // Might not be floating when dragging a QDockWidgetGroupWindow
+                    undockedGeometry = q->geometry();
                 q->activateWindow();
             } else {
                 // The tab was not plugged back in the QMainWindow but the QDockWidget cannot