Merge remote-tracking branch 'qt/5.6' into wip-compositor-api

Change-Id: Ie70fdd03e1259a8cb75bbdbf1324e3e4a2b51807

10 files changed, 42 insertions, 247 deletions

diff --git a/src/client/client.pro b/src/client/client.pro
index 9ebd0352e..182a5d551 100644
--- a/src/client/client.pro
+++ b/src/client/client.pro
@@ -16,7 +16,6 @@ load(qt_module)
 QMAKE_CXXFLAGS_WARN_ON -= -Wcast-qual
 
 CONFIG -= precompile_header
-CONFIG -= create_cmake
 CONFIG += link_pkgconfig qpa/genericunixfontdatabase wayland-scanner
 
 !equals(QT_WAYLAND_GL_CONFIG, nogl) {
@@ -78,7 +77,6 @@ SOURCES +=  qwaylandintegration.cpp \
             qwaylandabstractdecoration.cpp \
             qwaylanddecorationfactory.cpp \
             qwaylanddecorationplugin.cpp \
-            qwaylandeventthread.cpp\
             qwaylandwindowmanagerintegration.cpp \
             qwaylandinputcontext.cpp \
             qwaylanddatadevice.cpp \
@@ -111,7 +109,6 @@ HEADERS +=  qwaylandintegration_p.h \
             qwaylandabstractdecoration_p.h \
             qwaylanddecorationfactory_p.h \
             qwaylanddecorationplugin_p.h \
-            qwaylandeventthread_p.h \
             qwaylandwindowmanagerintegration_p.h \
             qwaylandinputcontext_p.h \
             qwaylanddatadevice_p.h \
diff --git a/src/client/qwaylanddatadevice.cpp b/src/client/qwaylanddatadevice.cpp
index 779fd9cc2..42ab2293a 100644
--- a/src/client/qwaylanddatadevice.cpp
+++ b/src/client/qwaylanddatadevice.cpp
@@ -151,7 +151,7 @@ void QWaylandDataDevice::data_device_enter(uint32_t serial, wl_surface *surface,
 
     QDrag *drag = static_cast<QWaylandDrag *>(QGuiApplicationPrivate::platformIntegration()->drag())->currentDrag();
 
-    QMimeData *dragData;
+    QMimeData *dragData = Q_NULLPTR;
     Qt::DropActions supportedActions;
     if (drag) {
         dragData = drag->mimeData();
diff --git a/src/client/qwaylanddisplay.cpp b/src/client/qwaylanddisplay.cpp
index dbb8e12dd..a6f52bc24 100644
--- a/src/client/qwaylanddisplay.cpp
+++ b/src/client/qwaylanddisplay.cpp
@@ -33,7 +33,6 @@
 
 #include "qwaylanddisplay_p.h"
 
-#include "qwaylandeventthread_p.h"
 #include "qwaylandintegration_p.h"
 #include "qwaylandwindow_p.h"
 #include "qwaylandscreen_p.h"
@@ -145,21 +144,15 @@ QWaylandDisplay::QWaylandDisplay(QWaylandIntegration *waylandIntegration)
 {
     qRegisterMetaType<uint32_t>("uint32_t");
 
-    mEventThreadObject = new QWaylandEventThread(0);
-    mEventThread = new QThread(this);
-    mEventThread->setObjectName(QStringLiteral("QtWayland"));
-    mEventThreadObject->moveToThread(mEventThread);
-    mEventThread->start();
-
-    mEventThreadObject->displayConnect();
-    mDisplay = mEventThreadObject->display(); //blocks until display is available
+    mDisplay = wl_display_connect(NULL);
+    if (mDisplay == NULL) {
+        qErrnoWarning(errno, "Failed to create display");
+        ::exit(1);
+    }
 
     struct ::wl_registry *registry = wl_display_get_registry(mDisplay);
     init(registry);
 
-    connect(mEventThreadObject, SIGNAL(newEventsRead()), this, SLOT(flushRequests()));
-    connect(mEventThreadObject, &QWaylandEventThread::fatalError, this, &QWaylandDisplay::exitWithError);
-
     mWindowManagerIntegration.reset(new QWaylandWindowManagerIntegration(this));
 
     forceRoundTrip();
@@ -175,15 +168,28 @@ QWaylandDisplay::~QWaylandDisplay(void)
     }
     mScreens.clear();
     delete mDndSelectionHandler.take();
-    mEventThread->quit();
-    mEventThread->wait();
-    delete mEventThreadObject;
+    wl_display_disconnect(mDisplay);
+}
+
+void QWaylandDisplay::checkError() const
+{
+    int ecode = wl_display_get_error(mDisplay);
+    if ((ecode == EPIPE || ecode == ECONNRESET)) {
+        // special case this to provide a nicer error
+        qWarning("The Wayland connection broke. Did the Wayland compositor die?");
+    } else {
+        qErrnoWarning(ecode, "The Wayland connection experienced a fatal error");
+    }
 }
 
 void QWaylandDisplay::flushRequests()
 {
+    if (wl_display_prepare_read(mDisplay) == 0) {
+        wl_display_read_events(mDisplay);
+    }
+
     if (wl_display_dispatch_pending(mDisplay) < 0) {
-        mEventThreadObject->checkError();
+        checkError();
         exitWithError();
     }
 
@@ -194,15 +200,13 @@ void QWaylandDisplay::flushRequests()
 void QWaylandDisplay::blockingReadEvents()
 {
     if (wl_display_dispatch(mDisplay) < 0) {
-        mEventThreadObject->checkError();
+        checkError();
         exitWithError();
     }
 }
 
 void QWaylandDisplay::exitWithError()
 {
-    mEventThread->quit();
-    mEventThread->wait();
     ::exit(1);
 }
 
diff --git a/src/client/qwaylanddisplay_p.h b/src/client/qwaylanddisplay_p.h
index f6500b0b2..d5ee16fc9 100644
--- a/src/client/qwaylanddisplay_p.h
+++ b/src/client/qwaylanddisplay_p.h
@@ -176,6 +176,7 @@ public slots:
 private:
     void waitForScreens();
     void exitWithError();
+    void checkError() const;
 
     struct Listener {
         RegistryListener listener;
@@ -185,8 +186,6 @@ private:
     struct wl_display *mDisplay;
     QtWayland::wl_compositor mCompositor;
     struct wl_shm *mShm;
-    QThread *mEventThread;
-    QWaylandEventThread *mEventThreadObject;
     QScopedPointer<QtWayland::wl_shell> mShell;
     QScopedPointer<QWaylandXdgShell> mShellXdg;
     QList<QWaylandScreen *> mScreens;
diff --git a/src/client/qwaylanddnd.cpp b/src/client/qwaylanddnd.cpp
index 59f91411f..e195d193a 100644
--- a/src/client/qwaylanddnd.cpp
+++ b/src/client/qwaylanddnd.cpp
@@ -65,21 +65,9 @@ QMimeData * QWaylandDrag::platformDropData()
 
 void QWaylandDrag::startDrag()
 {
-    bool cancel = false;
-    if (!shapedPixmapWindow()) {
-        QBasicDrag::startDrag();
-        // Don't call cancel() here, since that will hide 'shapedPixmapWindow()', and
-        // QWaylandWindow::setVisible(false) will flush the window system queue,
-        // ending up trying to render the window, which doesn't have a role yet,
-        // and so blocking waiting for a frame callback.
-        cancel = true;
-    }
-
+    QBasicDrag::startDrag();
     QWaylandWindow *icon = static_cast<QWaylandWindow *>(shapedPixmapWindow()->handle());
     m_display->currentInputDevice()->dataDevice()->startDrag(drag()->mimeData(), icon);
-    if (cancel)
-        QBasicDrag::cancel();
-    QBasicDrag::startDrag();
 }
 
 void QWaylandDrag::cancel()
diff --git a/src/client/qwaylandeventthread.cpp b/src/client/qwaylandeventthread.cpp
deleted file mode 100644
index e0a3edcb8..000000000
--- a/src/client/qwaylandeventthread.cpp
+++ /dev/null
@@ -1,112 +0,0 @@
-/****************************************************************************
-**
-** Copyright (C) 2015 The Qt Company Ltd.
-** Contact: http://www.qt.io/licensing/
-**
-** This file is part of the plugins of the Qt Toolkit.
-**
-** $QT_BEGIN_LICENSE:LGPL21$
-** Commercial License Usage
-** Licensees holding valid commercial Qt licenses may use this file in
-** accordance with the commercial license agreement provided with the
-** Software or, alternatively, in accordance with the terms contained in
-** a written agreement between you and The Qt Company. For licensing terms
-** and conditions see http://www.qt.io/terms-conditions. For further
-** information use the contact form at http://www.qt.io/contact-us.
-**
-** GNU Lesser General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU Lesser
-** General Public License version 2.1 or version 3 as published by the Free
-** Software Foundation and appearing in the file LICENSE.LGPLv21 and
-** LICENSE.LGPLv3 included in the packaging of this file. Please review the
-** following information to ensure the GNU Lesser General Public License
-** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
-** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
-**
-** As a special exception, The Qt Company gives you certain additional
-** rights. These rights are described in The Qt Company LGPL Exception
-** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
-**
-** $QT_END_LICENSE$
-**
-****************************************************************************/
-
-#include "qwaylandeventthread_p.h"
-#include <QtCore/QSocketNotifier>
-#include <QCoreApplication>
-
-#include <unistd.h>
-#include <fcntl.h>
-#include <stdio.h>
-#include <errno.h>
-
-QT_BEGIN_NAMESPACE
-
-namespace QtWaylandClient {
-
-QWaylandEventThread::QWaylandEventThread(QObject *parent)
-    : QObject(parent)
-    , m_display(0)
-    , m_fileDescriptor(-1)
-    , m_readNotifier(0)
-    , m_displayLock(new QMutex)
-{
-}
-
-QWaylandEventThread::~QWaylandEventThread()
-{
-    delete m_displayLock;
-    wl_display_disconnect(m_display);
-}
-
-void QWaylandEventThread::displayConnect()
-{
-    m_displayLock->lock();
-    QMetaObject::invokeMethod(this, "waylandDisplayConnect", Qt::QueuedConnection);
-}
-
-// ### be careful what you do, this function may also be called from other
-// threads to clean up & exit.
-void QWaylandEventThread::checkError() const
-{
-    int ecode = wl_display_get_error(m_display);
-    if ((ecode == EPIPE || ecode == ECONNRESET)) {
-        // special case this to provide a nicer error
-        qWarning("The Wayland connection broke. Did the Wayland compositor die?");
-    } else {
-        qErrnoWarning(ecode, "The Wayland connection experienced a fatal error");
-    }
-}
-
-void QWaylandEventThread::readWaylandEvents()
-{
-    if (wl_display_prepare_read(m_display) == 0) {
-        wl_display_read_events(m_display);
-    }
-    emit newEventsRead();
-}
-
-void QWaylandEventThread::waylandDisplayConnect()
-{
-    m_display = wl_display_connect(NULL);
-    if (m_display == NULL) {
-        qErrnoWarning(errno, "Failed to create display");
-        ::exit(1);
-    }
-    m_displayLock->unlock();
-
-    m_fileDescriptor = wl_display_get_fd(m_display);
-
-    m_readNotifier = new QSocketNotifier(m_fileDescriptor, QSocketNotifier::Read, this);
-    connect(m_readNotifier, SIGNAL(activated(int)), this, SLOT(readWaylandEvents()));
-}
-
-wl_display *QWaylandEventThread::display() const
-{
-    QMutexLocker displayLock(m_displayLock);
-    return m_display;
-}
-
-}
-
-QT_END_NAMESPACE
diff --git a/src/client/qwaylandeventthread_p.h b/src/client/qwaylandeventthread_p.h
deleted file mode 100644
index 0920d403e..000000000
--- a/src/client/qwaylandeventthread_p.h
+++ /dev/null
@@ -1,97 +0,0 @@
-/****************************************************************************
-**
-** Copyright (C) 2015 The Qt Company Ltd.
-** Contact: http://www.qt.io/licensing/
-**
-** This file is part of the plugins of the Qt Toolkit.
-**
-** $QT_BEGIN_LICENSE:LGPL21$
-** Commercial License Usage
-** Licensees holding valid commercial Qt licenses may use this file in
-** accordance with the commercial license agreement provided with the
-** Software or, alternatively, in accordance with the terms contained in
-** a written agreement between you and The Qt Company. For licensing terms
-** and conditions see http://www.qt.io/terms-conditions. For further
-** information use the contact form at http://www.qt.io/contact-us.
-**
-** GNU Lesser General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU Lesser
-** General Public License version 2.1 or version 3 as published by the Free
-** Software Foundation and appearing in the file LICENSE.LGPLv21 and
-** LICENSE.LGPLv3 included in the packaging of this file. Please review the
-** following information to ensure the GNU Lesser General Public License
-** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
-** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
-**
-** As a special exception, The Qt Company gives you certain additional
-** rights. These rights are described in The Qt Company LGPL Exception
-** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
-**
-** $QT_END_LICENSE$
-**
-****************************************************************************/
-
-#ifndef QWAYLANDEVENTTHREAD_H
-#define QWAYLANDEVENTTHREAD_H
-
-//
-//  W A R N I N G
-//  -------------
-//
-// This file is not part of the Qt API.  It exists purely as an
-// implementation detail.  This header file may change from version to
-// version without notice, or even be removed.
-//
-// We mean it.
-//
-
-#include <QObject>
-#include <QMutex>
-#include <wayland-client.h>
-
-#include <QtWaylandClient/private/qwaylandclientexport_p.h>
-
-QT_BEGIN_NAMESPACE
-
-class QSocketNotifier;
-
-namespace QtWaylandClient {
-
-class Q_WAYLAND_CLIENT_EXPORT QWaylandEventThread : public QObject
-{
-    Q_OBJECT
-public:
-    explicit QWaylandEventThread(QObject *parent = 0);
-    ~QWaylandEventThread();
-
-    void displayConnect();
-
-    wl_display *display() const;
-
-    void checkError() const;
-
-private slots:
-    void readWaylandEvents();
-
-    void waylandDisplayConnect();
-
-signals:
-    void newEventsRead();
-    void fatalError();
-
-private:
-
-    struct wl_display *m_display;
-    int m_fileDescriptor;
-
-    QSocketNotifier *m_readNotifier;
-
-    QMutex *m_displayLock;
-
-};
-
-}
-
-QT_END_NAMESPACE
-
-#endif // QWAYLANDEVENTTHREAD_H
diff --git a/src/client/qwaylandinputcontext.cpp b/src/client/qwaylandinputcontext.cpp
index d1ac14982..b02e9f668 100644
--- a/src/client/qwaylandinputcontext.cpp
+++ b/src/client/qwaylandinputcontext.cpp
@@ -68,6 +68,7 @@ static Qt::Key toQtKey(uint32_t sym)
         return Qt::Key_unknown;
     }
 #else
+    Q_UNUSED(sym)
     return Qt::Key_unknown;
 #endif
 }
diff --git a/src/client/qwaylandintegration.cpp b/src/client/qwaylandintegration.cpp
index 82df8a30a..39fff533d 100644
--- a/src/client/qwaylandintegration.cpp
+++ b/src/client/qwaylandintegration.cpp
@@ -54,6 +54,7 @@
 #include <qpa/qplatformcursor.h>
 #include <QtGui/QSurfaceFormat>
 #include <QtGui/QOpenGLContext>
+#include <QSocketNotifier>
 
 #include <qpa/qplatforminputcontextfactory_p.h>
 #include <qpa/qplatformaccessibility.h>
@@ -201,6 +202,10 @@ void QWaylandIntegration::initialize()
     QAbstractEventDispatcher *dispatcher = QGuiApplicationPrivate::eventDispatcher;
     QObject::connect(dispatcher, SIGNAL(aboutToBlock()), mDisplay, SLOT(flushRequests()));
     QObject::connect(dispatcher, SIGNAL(awake()), mDisplay, SLOT(flushRequests()));
+
+    int fd = wl_display_get_fd(mDisplay->wl_display());
+    QSocketNotifier *sn = new QSocketNotifier(fd, QSocketNotifier::Read, mDisplay);
+    QObject::connect(sn, SIGNAL(activated(int)), mDisplay, SLOT(flushRequests()));
 }
 
 QPlatformFontDatabase *QWaylandIntegration::fontDatabase() const
diff --git a/src/client/qwaylandnativeinterface.cpp b/src/client/qwaylandnativeinterface.cpp
index 0d20075f0..98e1a7366 100644
--- a/src/client/qwaylandnativeinterface.cpp
+++ b/src/client/qwaylandnativeinterface.cpp
@@ -39,6 +39,7 @@
 #include "qwaylanddisplay_p.h"
 #include "qwaylandwindowmanagerintegration_p.h"
 #include "qwaylandscreen_p.h"
+#include "qwaylandwlshellsurface_p.h"
 #include <QtGui/private/qguiapplication_p.h>
 #include <QtGui/QScreen>
 #include <QtWaylandClient/private/qwaylandclientbufferintegration_p.h>
@@ -80,6 +81,15 @@ void *QWaylandNativeInterface::nativeResourceForWindow(const QByteArray &resourc
     if (lowerCaseResource == "surface") {
         return ((QWaylandWindow *) window->handle())->object();
     }
+    if (lowerCaseResource == "wl_shell_surface") {
+        QWaylandWindow *w = (QWaylandWindow *) window->handle();
+        if (!w)
+            return NULL;
+        QWaylandWlShellSurface *s = qobject_cast<QWaylandWlShellSurface *>(w->shellSurface());
+        if (!s)
+            return NULL;
+        return s->object();
+    }
     if (lowerCaseResource == "egldisplay" && m_integration->clientBufferIntegration())
         return m_integration->clientBufferIntegration()->nativeResource(QWaylandClientBufferIntegration::EglDisplay);