Merge remote-tracking branch 'origin/5.5' into dev

Conflicts:
	.qmake.conf

Change-Id: Ic75157b11eee188608c3ac7ed6fb1a033bb72750

src/plugins/platforms/wayland/plugins/decorations/bradient/main.cpp

@@ -116,6 +116,14 @@ static const char * const qt_normalizeup_xpm[] = {
 #  define BUTTON_WIDTH 22
 #endif
 
+enum Button
+{
+    None,
+    Close,
+    Maximize,
+    Minimize
+};
+
 class Q_WAYLAND_CLIENT_EXPORT QWaylandBradientDecoration : public QWaylandAbstractDecoration
 {
 public:
@@ -130,6 +138,7 @@ private:
     void processMouseBottom(QWaylandInputDevice *inputDevice, const QPointF &local, Qt::MouseButtons b,Qt::KeyboardModifiers mods);
     void processMouseLeft(QWaylandInputDevice *inputDevice, const QPointF &local, Qt::MouseButtons b,Qt::KeyboardModifiers mods);
     void processMouseRight(QWaylandInputDevice *inputDevice, const QPointF &local, Qt::MouseButtons b,Qt::KeyboardModifiers mods);
+    bool clickButton(Qt::MouseButtons b, Button btn);
 
     QRectF closeButtonRect() const;
     QRectF maximizeButtonRect() const;
@@ -138,12 +147,14 @@ private:
     QColor m_foregroundColor;
     QColor m_backgroundColor;
     QStaticText m_windowTitle;
+    Button m_clicking;
 };
 
 
 
 QWaylandBradientDecoration::QWaylandBradientDecoration()
     : QWaylandAbstractDecoration()
+    , m_clicking(None)
 {
     QPalette palette;
     m_foregroundColor = palette.color(QPalette::Active, QPalette::HighlightedText);
@@ -315,18 +326,37 @@ void QWaylandBradientDecoration::paint(QPaintDevice *device)
 #endif
 }
 
+bool QWaylandBradientDecoration::clickButton(Qt::MouseButtons b, Button btn)
+{
+    if (isLeftClicked(b)) {
+        m_clicking = btn;
+        return false;
+    } else if (isLeftReleased(b)) {
+        if (m_clicking == btn) {
+            m_clicking = None;
+            return true;
+        } else {
+            m_clicking = None;
+        }
+    }
+    return false;
+}
+
 bool QWaylandBradientDecoration::handleMouse(QWaylandInputDevice *inputDevice, const QPointF &local, const QPointF &global, Qt::MouseButtons b, Qt::KeyboardModifiers mods)
 
 {
     Q_UNUSED(global);
 
     // Figure out what area mouse is in
-    if (closeButtonRect().contains(local) && isLeftClicked(b)) {
-        QWindowSystemInterface::handleCloseEvent(window());
-    } else if (maximizeButtonRect().contains(local) && isLeftClicked(b)) {
-        window()->setWindowState(waylandWindow()->isMaximized() ? Qt::WindowNoState : Qt::WindowMaximized);
-    } else if (minimizeButtonRect().contains(local) && isLeftClicked(b)) {
-        window()->setWindowState(Qt::WindowMinimized);
+    if (closeButtonRect().contains(local)) {
+        if (clickButton(b, Close))
+            QWindowSystemInterface::handleCloseEvent(window());
+    } else if (maximizeButtonRect().contains(local)) {
+        if (clickButton(b, Maximize))
+            window()->setWindowState(waylandWindow()->isMaximized() ? Qt::WindowNoState : Qt::WindowMaximized);
+    } else if (minimizeButtonRect().contains(local)) {
+        if (clickButton(b, Minimize))
+            window()->setWindowState(Qt::WindowMinimized);
     } else if (local.y() <= margins().top()) {
         processMouseTop(inputDevice,local,b,mods);
     } else if (local.y() > window()->height() - margins().bottom() + margins().top()) {

src/plugins/platforms/wayland/qwaylandabstractdecoration.cpp

@@ -147,7 +147,7 @@ void QWaylandAbstractDecoration::startMove(QWaylandInputDevice *inputDevice, Qt:
 bool QWaylandAbstractDecoration::isLeftClicked(Qt::MouseButtons newMouseButtonState)
 {
     Q_D(QWaylandAbstractDecoration);
-    if ((!d->m_mouseButtons & Qt::LeftButton) && (newMouseButtonState & Qt::LeftButton))
+    if (!(d->m_mouseButtons & Qt::LeftButton) && (newMouseButtonState & Qt::LeftButton))
         return true;
     return false;
 }

src/plugins/platforms/wayland/qwaylanddatadevice.cpp

@@ -94,10 +94,10 @@ QWaylandDataSource *QWaylandDataDevice::selectionSource() const
 
 void QWaylandDataDevice::setSelectionSource(QWaylandDataSource *source)
 {
-    m_selectionSource.reset(source);
     if (source)
         connect(source, &QWaylandDataSource::cancelled, this, &QWaylandDataDevice::selectionSourceCancelled);
     set_selection(source ? source->object() : Q_NULLPTR, m_inputDevice->serial());
+    m_selectionSource.reset(source);
 }
 
 QWaylandDataOffer *QWaylandDataDevice::dragOffer() const

src/plugins/platforms/wayland/qwaylanddataoffer.cpp

@@ -136,7 +136,7 @@ QVariant QWaylandMimeData::retrieveData_sys(const QString &mimeType, QVariant::T
     }
 
     m_dataOffer->receive(mime, pipefd[1]);
-    m_display->flushRequests();
+    wl_display_flush(m_display->wl_display());
 
     close(pipefd[1]);
 

src/plugins/platforms/wayland/qwaylanddisplay.cpp

@@ -163,6 +163,9 @@ QWaylandDisplay::QWaylandDisplay(QWaylandIntegration *waylandIntegration)
 
 QWaylandDisplay::~QWaylandDisplay(void)
 {
+    qDeleteAll(mInputDevices);
+    mInputDevices.clear();
+
     foreach (QWaylandScreen *screen, mScreens) {
         mWaylandIntegration->destroyScreen(screen);
     }

src/plugins/platforms/wayland/qwaylandinputdevice.cpp

@@ -494,6 +494,15 @@ void QWaylandInputDevice::Pointer::pointer_button(uint32_t serial, uint32_t time
     }
 }
 
+class WheelEvent : public QWaylandPointerEvent
+{
+public:
+    WheelEvent(ulong t, const QPointF &l, const QPointF &g, const QPoint &pd, const QPoint &ad)
+        : QWaylandPointerEvent(QWaylandPointerEvent::Wheel, t, l, g, pd, ad)
+    {
+    }
+};
+
 void QWaylandInputDevice::Pointer::pointer_axis(uint32_t time, uint32_t axis, int32_t value)
 {
     QWaylandWindow *window = mFocus;
@@ -517,10 +526,8 @@ void QWaylandInputDevice::Pointer::pointer_axis(uint32_t time, uint32_t axis, in
         angleDelta.setY(valueDelta);
     }
 
-    QWindowSystemInterface::handleWheelEvent(window->window(),
-                                             time, mSurfacePos,
-                                             mGlobalPos, pixelDelta,
-                                             angleDelta);
+    WheelEvent e(time, mSurfacePos, mGlobalPos, pixelDelta, angleDelta);
+    window->handleMouse(mParent, e);
 }
 
 #ifndef QT_NO_WAYLAND_XKB

src/plugins/platforms/wayland/qwaylandinputdevice_p.h

@@ -259,7 +259,8 @@ class QWaylandPointerEvent
 public:
     enum Type {
         Enter,
-        Motion
+        Motion,
+        Wheel
     };
     inline QWaylandPointerEvent(Type t, ulong ts, const QPointF &l, const QPointF &g, Qt::MouseButtons b, Qt::KeyboardModifiers m)
         : type(t)
@@ -269,6 +270,14 @@ public:
         , buttons(b)
         , modifiers(m)
     {}
+    inline QWaylandPointerEvent(Type t, ulong ts, const QPointF &l, const QPointF &g, const QPoint &pd, const QPoint &ad)
+        : type(t)
+        , timestamp(ts)
+        , local(l)
+        , global(g)
+        , pixelDelta(pd)
+        , angleDelta(ad)
+    {}
 
     Type type;
     ulong timestamp;
@@ -276,6 +285,8 @@ public:
     QPointF global;
     Qt::MouseButtons buttons;
     Qt::KeyboardModifiers modifiers;
+    QPoint pixelDelta;
+    QPoint angleDelta;
 };
 
 }

src/plugins/platforms/wayland/qwaylandwindow.cpp

@@ -625,6 +625,9 @@ void QWaylandWindow::handleMouse(QWaylandInputDevice *inputDevice, const QWaylan
             case QWaylandPointerEvent::Motion:
                 QWindowSystemInterface::handleMouseEvent(window(), e.timestamp, e.local, e.global, e.buttons, e.modifiers);
                 break;
+            case QWaylandPointerEvent::Wheel:
+                QWindowSystemInterface::handleWheelEvent(window(), e.timestamp, e.local, e.global, e.pixelDelta, e.angleDelta);
+                break;
         }
     }
 
@@ -684,6 +687,9 @@ void QWaylandWindow::handleMouseEventWithDecoration(QWaylandInputDevice *inputDe
             case QWaylandPointerEvent::Motion:
                 QWindowSystemInterface::handleMouseEvent(window(), e.timestamp, localTranslated, globalTranslated, e.buttons, e.modifiers);
                 break;
+            case QWaylandPointerEvent::Wheel:
+                QWindowSystemInterface::handleWheelEvent(window(), e.timestamp, localTranslated, globalTranslated, e.pixelDelta, e.angleDelta);
+                break;
         }
 
         mMouseEventsInContentArea = true;