Clean up draganddrop and clipboard features

Don't assume that no-draganddrop implies no-clipboard. Introduce
a new private feature wayland-datadevice which contains the
common functionality. This feature cannot be controlled independently,
but is automatically disabled when both clipboard and draganddrop are
disabled.

Change-Id: I6aac09c7ee524e3b11f0a1caa4a6c62fc3f1d10f
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@qt.io>
Reviewed-by: Johan Helsing <johan.helsing@qt.io>

17 files changed, 72 insertions, 57 deletions

diff --git a/src/client/client.pro b/src/client/client.pro
index 824c715b0..015bfcd4b 100644
--- a/src/client/client.pro
+++ b/src/client/client.pro
@@ -40,9 +40,6 @@ SOURCES +=  qwaylandintegration.cpp \
             qwaylandwindow.cpp \
             qwaylandscreen.cpp \
             qwaylandshmwindow.cpp \
-            qwaylanddataoffer.cpp \
-            qwaylanddatadevicemanager.cpp \
-            qwaylanddatasource.cpp \
             qwaylandshellsurface.cpp \
             qwaylandwlshellsurface.cpp \
             qwaylandwlshellintegration.cpp \
@@ -76,9 +73,6 @@ HEADERS +=  qwaylandintegration_p.h \
             qwaylandinputdevice_p.h \
             qwaylandbuffer_p.h \
             qwaylandshmwindow_p.h \
-            qwaylanddataoffer_p.h \
-            qwaylanddatadevicemanager_p.h \
-            qwaylanddatasource_p.h \
             qwaylandshellsurface_p.h \
             qwaylandwlshellsurface_p.h \
             qwaylandwlshellintegration_p.h \
@@ -123,13 +117,25 @@ qtConfig(cursor) {
     SOURCES += \
         qwaylandcursor.cpp
 }
+
+qtConfig(wayland-datadevice) {
+    HEADERS += \
+        qwaylanddatadevice_p.h \
+        qwaylanddatadevicemanager_p.h \
+        qwaylanddataoffer_p.h \
+        qwaylanddatasource_p.h
+    SOURCES += \
+        qwaylanddatadevice.cpp \
+        qwaylanddatadevicemanager.cpp \
+        qwaylanddataoffer.cpp \
+        qwaylanddatasource.cpp
+}
+
 qtConfig(draganddrop) {
     HEADERS += \
-        qwaylanddnd_p.h \
-        qwaylanddatadevice_p.h
+        qwaylanddnd_p.h
     SOURCES += \
-        qwaylanddnd.cpp \
-        qwaylanddatadevice.cpp
+        qwaylanddnd.cpp
 }
 
 CONFIG += generated_privates
diff --git a/src/client/configure.json b/src/client/configure.json
index ea0bbe22c..c29a8b609 100644
--- a/src/client/configure.json
+++ b/src/client/configure.json
@@ -76,6 +76,10 @@
             "condition": "!config.win32 && libs.wayland-client && libs.wayland-cursor && tests.wayland-scanner",
             "output": [ "privateFeature" ]
         },
+        "wayland-datadevice": {
+            "condition": "features.draganddrop || features.clipboard",
+            "output": [ "privateFeature" ]
+        },
         "wayland-egl": {
             "label": "EGL",
             "condition": "features.wayland-client && features.opengl && features.egl && libs.wayland-egl",
diff --git a/src/client/qwaylandclipboard.cpp b/src/client/qwaylandclipboard.cpp
index 68fb737cc..5da120268 100644
--- a/src/client/qwaylandclipboard.cpp
+++ b/src/client/qwaylandclipboard.cpp
@@ -44,8 +44,6 @@
 #include "qwaylanddatasource_p.h"
 #include "qwaylanddatadevice_p.h"
 
-#if QT_CONFIG(draganddrop)
-
 QT_BEGIN_NAMESPACE
 
 namespace QtWaylandClient {
@@ -117,5 +115,3 @@ bool QWaylandClipboard::ownsMode(QClipboard::Mode mode) const
 }
 
 QT_END_NAMESPACE
-
-#endif  // draganddrop
diff --git a/src/client/qwaylandclipboard_p.h b/src/client/qwaylandclipboard_p.h
index 211a96942..283362022 100644
--- a/src/client/qwaylandclipboard_p.h
+++ b/src/client/qwaylandclipboard_p.h
@@ -57,7 +57,8 @@
 
 #include <QtWaylandClient/qtwaylandclientglobal.h>
 
-#if QT_CONFIG(draganddrop)
+QT_REQUIRE_CONFIG(clipboard);
+
 QT_BEGIN_NAMESPACE
 
 namespace QtWaylandClient {
@@ -85,6 +86,4 @@ private:
 
 QT_END_NAMESPACE
 
-#endif  // draganddrop
-
 #endif // QWAYLANDCLIPBOARD_H
diff --git a/src/client/qwaylanddatadevice.cpp b/src/client/qwaylanddatadevice.cpp
index ebd3ce1bf..33068c5e9 100644
--- a/src/client/qwaylanddatadevice.cpp
+++ b/src/client/qwaylanddatadevice.cpp
@@ -58,8 +58,6 @@
 #include <qpa/qplatformdrag.h>
 #include <qpa/qwindowsysteminterface.h>
 
-#if QT_CONFIG(draganddrop)
-
 QT_BEGIN_NAMESPACE
 
 namespace QtWaylandClient {
@@ -103,6 +101,7 @@ void QWaylandDataDevice::setSelectionSource(QWaylandDataSource *source)
     m_selectionSource.reset(source);
 }
 
+#if QT_CONFIG(draganddrop)
 QWaylandDataOffer *QWaylandDataDevice::dragOffer() const
 {
     return m_dragOffer.data();
@@ -124,12 +123,14 @@ void QWaylandDataDevice::cancelDrag()
 {
     m_dragSource.reset();
 }
+#endif
 
 void QWaylandDataDevice::data_device_data_offer(struct ::wl_data_offer *id)
 {
     new QWaylandDataOffer(m_display, id);
 }
 
+#if QT_CONFIG(draganddrop)
 void QWaylandDataDevice::data_device_drop()
 {
     QDrag *drag = static_cast<QWaylandDrag *>(QGuiApplicationPrivate::platformIntegration()->drag())->currentDrag();
@@ -229,6 +230,7 @@ void QWaylandDataDevice::data_device_motion(uint32_t time, wl_fixed_t x, wl_fixe
         wl_data_offer_accept(m_dragOffer->object(), m_enterSerial, 0);
     }
 }
+#endif // QT_CONFIG(draganddrop)
 
 void QWaylandDataDevice::data_device_selection(wl_data_offer *id)
 {
@@ -250,6 +252,7 @@ void QWaylandDataDevice::selectionSourceCancelled()
 #endif
 }
 
+#if QT_CONFIG(draganddrop)
 void QWaylandDataDevice::dragSourceCancelled()
 {
     m_dragSource.reset();
@@ -272,9 +275,8 @@ QPoint QWaylandDataDevice::calculateDragPosition(int x, int y, QWindow *wnd) con
     }
     return pnt;
 }
+#endif // QT_CONFIG(draganddrop)
 
 }
 
 QT_END_NAMESPACE
-
-#endif  // draganddrop
diff --git a/src/client/qwaylanddatadevice_p.h b/src/client/qwaylanddatadevice_p.h
index 1ec8761b9..7fb0003b4 100644
--- a/src/client/qwaylanddatadevice_p.h
+++ b/src/client/qwaylanddatadevice_p.h
@@ -52,14 +52,14 @@
 // We mean it.
 //
 
-#include <qtwaylandclientglobal.h>
+#include <qtwaylandclientglobal_p.h>
 #include <QObject>
 #include <QPointer>
 #include <QPoint>
 
 #include <QtWaylandClient/private/qwayland-wayland.h>
 
-#if QT_CONFIG(draganddrop)
+QT_REQUIRE_CONFIG(wayland_datadevice);
 
 QT_BEGIN_NAMESPACE
 
@@ -87,25 +87,35 @@ public:
     QWaylandDataSource *selectionSource() const;
     void setSelectionSource(QWaylandDataSource *source);
 
+#if QT_CONFIG(draganddrop)
     QWaylandDataOffer *dragOffer() const;
     void startDrag(QMimeData *mimeData, QWaylandWindow *icon);
     void cancelDrag();
+#endif
 
 protected:
     void data_device_data_offer(struct ::wl_data_offer *id) override;
+
+#if QT_CONFIG(draganddrop)
     void data_device_drop() override;
     void data_device_enter(uint32_t serial, struct ::wl_surface *surface, wl_fixed_t x, wl_fixed_t y, struct ::wl_data_offer *id) override;
     void data_device_leave() override;
     void data_device_motion(uint32_t time, wl_fixed_t x, wl_fixed_t y) override;
+#endif
     void data_device_selection(struct ::wl_data_offer *id) override;
 
 private Q_SLOTS:
     void selectionSourceCancelled();
+
+#if QT_CONFIG(draganddrop)
     void dragSourceCancelled();
     void dragSourceTargetChanged(const QString &mimeType);
+#endif
 
 private:
+#if QT_CONFIG(draganddrop)
     QPoint calculateDragPosition(int x, int y, QWindow *wnd) const;
+#endif
 
     QWaylandDisplay *m_display;
     QWaylandInputDevice *m_inputDevice;
@@ -123,6 +133,4 @@ private:
 
 QT_END_NAMESPACE
 
-#endif  // draganddrop
-
 #endif // QWAYLANDDATADEVICE_H
diff --git a/src/client/qwaylanddatadevicemanager.cpp b/src/client/qwaylanddatadevicemanager.cpp
index c398b86fd..35d67307f 100644
--- a/src/client/qwaylanddatadevicemanager.cpp
+++ b/src/client/qwaylanddatadevicemanager.cpp
@@ -46,8 +46,6 @@
 
 #include <QtCore/QDebug>
 
-#if QT_CONFIG(draganddrop)
-
 QT_BEGIN_NAMESPACE
 
 namespace QtWaylandClient {
@@ -82,5 +80,3 @@ QWaylandDisplay *QWaylandDataDeviceManager::display() const
 }
 
 QT_END_NAMESPACE
-
-#endif  // draganddrop
diff --git a/src/client/qwaylanddatadevicemanager_p.h b/src/client/qwaylanddatadevicemanager_p.h
index e7fc2113a..3daf780aa 100644
--- a/src/client/qwaylanddatadevicemanager_p.h
+++ b/src/client/qwaylanddatadevicemanager_p.h
@@ -51,10 +51,10 @@
 // We mean it.
 //
 
-#include <QtWaylandClient/qtwaylandclientglobal.h>
+#include <QtWaylandClient/private/qtwaylandclientglobal_p.h>
 #include <QtWaylandClient/private/qwayland-wayland.h>
 
-#if QT_CONFIG(draganddrop)
+QT_REQUIRE_CONFIG(wayland_datadevice);
 
 QT_BEGIN_NAMESPACE
 
@@ -83,6 +83,4 @@ private:
 
 QT_END_NAMESPACE
 
-#endif  // draganddrop
-
 #endif // QWAYLANDDATADEVICEMANAGER_H
diff --git a/src/client/qwaylanddataoffer.cpp b/src/client/qwaylanddataoffer.cpp
index 56a18f007..2491c658b 100644
--- a/src/client/qwaylanddataoffer.cpp
+++ b/src/client/qwaylanddataoffer.cpp
@@ -47,8 +47,6 @@
 
 #include <QtCore/QDebug>
 
-#if QT_CONFIG(draganddrop)
-
 QT_BEGIN_NAMESPACE
 
 namespace QtWaylandClient {
@@ -183,5 +181,3 @@ int QWaylandMimeData::readData(int fd, QByteArray &data) const
 }
 
 QT_END_NAMESPACE
-
-#endif  // draganddrop
diff --git a/src/client/qwaylanddataoffer_p.h b/src/client/qwaylanddataoffer_p.h
index c7520f3e5..c9b9c21f1 100644
--- a/src/client/qwaylanddataoffer_p.h
+++ b/src/client/qwaylanddataoffer_p.h
@@ -53,10 +53,11 @@
 
 #include <QtGui/private/qdnd_p.h>
 
-#include <QtWaylandClient/qtwaylandclientglobal.h>
+#include <QtWaylandClient/private/qtwaylandclientglobal_p.h>
 #include <QtWaylandClient/private/qwayland-wayland.h>
 
-#if QT_CONFIG(draganddrop)
+QT_REQUIRE_CONFIG(wayland_datadevice);
+
 QT_BEGIN_NAMESPACE
 
 namespace QtWaylandClient {
@@ -106,5 +107,4 @@ private:
 }
 
 QT_END_NAMESPACE
-#endif  // draganddrop
 #endif
diff --git a/src/client/qwaylanddatasource.cpp b/src/client/qwaylanddatasource.cpp
index c61de181b..0c6ad50e4 100644
--- a/src/client/qwaylanddatasource.cpp
+++ b/src/client/qwaylanddatasource.cpp
@@ -50,8 +50,6 @@
 #include <unistd.h>
 #include <signal.h>
 
-#if QT_CONFIG(draganddrop)
-
 QT_BEGIN_NAMESPACE
 
 namespace QtWaylandClient {
@@ -108,5 +106,3 @@ void QWaylandDataSource::data_source_target(const QString &mime_type)
 }
 
 QT_END_NAMESPACE
-
-#endif  // draganddrop
diff --git a/src/client/qwaylanddatasource_p.h b/src/client/qwaylanddatasource_p.h
index 0221304c8..bba003f56 100644
--- a/src/client/qwaylanddatasource_p.h
+++ b/src/client/qwaylanddatasource_p.h
@@ -54,9 +54,9 @@
 #include <QObject>
 
 #include <QtWaylandClient/private/qwayland-wayland.h>
-#include <QtWaylandClient/qtwaylandclientglobal.h>
+#include <QtWaylandClient/private/qtwaylandclientglobal_p.h>
 
-#if QT_CONFIG(draganddrop)
+QT_REQUIRE_CONFIG(wayland_datadevice);
 
 QT_BEGIN_NAMESPACE
 
@@ -94,6 +94,4 @@ private:
 
 QT_END_NAMESPACE
 
-#endif  // draganddrop
-
 #endif // QWAYLANDDATASOURCE_H
diff --git a/src/client/qwaylanddisplay.cpp b/src/client/qwaylanddisplay.cpp
index 83a69483f..86cfe1a0d 100644
--- a/src/client/qwaylanddisplay.cpp
+++ b/src/client/qwaylanddisplay.cpp
@@ -47,7 +47,9 @@
 #if QT_CONFIG(clipboard)
 #include "qwaylandclipboard_p.h"
 #endif
+#if QT_CONFIG(wayland_datadevice)
 #include "qwaylanddatadevicemanager_p.h"
+#endif
 #include "qwaylandhardwareintegration_p.h"
 #include "qwaylandxdgshell_p.h"
 #include "qwaylandxdgsurface_p.h"
@@ -122,7 +124,7 @@ QWaylandWindowManagerIntegration *QWaylandDisplay::windowManagerIntegration() co
 
 QWaylandDisplay::QWaylandDisplay(QWaylandIntegration *waylandIntegration)
     : mWaylandIntegration(waylandIntegration)
-#if QT_CONFIG(draganddrop)
+#if QT_CONFIG(wayland_datadevice)
     , mDndSelectionHandler(0)
 #endif
     , mWindowExtension(0)
@@ -162,7 +164,7 @@ QWaylandDisplay::~QWaylandDisplay(void)
         mWaylandIntegration->destroyScreen(screen);
     }
     mScreens.clear();
-#if QT_CONFIG(draganddrop)
+#if QT_CONFIG(wayland_datadevice)
     delete mDndSelectionHandler.take();
 #endif
     wl_display_disconnect(mDisplay);
@@ -257,7 +259,7 @@ void QWaylandDisplay::registry_global(uint32_t id, const QString &interface, uin
     } else if (interface == QStringLiteral("wl_seat")) {
         QWaylandInputDevice *inputDevice = mWaylandIntegration->createInputDevice(this, version, id);
         mInputDevices.append(inputDevice);
-#if QT_CONFIG(draganddrop)
+#if QT_CONFIG(wayland_datadevice)
     } else if (interface == QStringLiteral("wl_data_device_manager")) {
         mDndSelectionHandler.reset(new QWaylandDataDeviceManager(this, id));
 #endif
diff --git a/src/client/qwaylanddisplay_p.h b/src/client/qwaylanddisplay_p.h
index 9268d9f1e..35d861760 100644
--- a/src/client/qwaylanddisplay_p.h
+++ b/src/client/qwaylanddisplay_p.h
@@ -61,7 +61,7 @@
 #include <wayland-client.h>
 
 #include <QtWaylandClient/private/qwayland-wayland.h>
-#include <QtWaylandClient/qtwaylandclientglobal.h>
+#include <QtWaylandClient/private/qtwaylandclientglobal_p.h>
 #include <QtWaylandClient/private/qwayland-xdg-shell.h>
 #include <QtWaylandClient/private/qwaylandshm_p.h>
 
@@ -137,7 +137,7 @@ public:
     QList<QWaylandInputDevice *> inputDevices() const { return mInputDevices; }
     QWaylandInputDevice *defaultInputDevice() const;
     QWaylandInputDevice *currentInputDevice() const { return defaultInputDevice(); }
-#if QT_CONFIG(draganddrop)
+#if QT_CONFIG(wayland_datadevice)
     QWaylandDataDeviceManager *dndSelectionHandler() const { return mDndSelectionHandler.data(); }
 #endif
     QtWayland::qt_surface_extension *windowExtension() const { return mWindowExtension.data(); }
@@ -202,7 +202,7 @@ private:
     QList<QWaylandInputDevice *> mInputDevices;
     QList<Listener> mRegistryListeners;
     QWaylandIntegration *mWaylandIntegration;
-#if QT_CONFIG(draganddrop)
+#if QT_CONFIG(wayland_datadevice)
     QScopedPointer<QWaylandDataDeviceManager> mDndSelectionHandler;
 #endif
     QScopedPointer<QtWayland::qt_surface_extension> mWindowExtension;
diff --git a/src/client/qwaylandinputdevice.cpp b/src/client/qwaylandinputdevice.cpp
index fb22c95e6..b0c6394e2 100644
--- a/src/client/qwaylandinputdevice.cpp
+++ b/src/client/qwaylandinputdevice.cpp
@@ -42,8 +42,10 @@
 #include "qwaylandintegration_p.h"
 #include "qwaylandwindow_p.h"
 #include "qwaylandbuffer_p.h"
+#if QT_CONFIG(wayland_datadevice)
 #include "qwaylanddatadevice_p.h"
 #include "qwaylanddatadevicemanager_p.h"
+#endif
 #include "qwaylandtouch_p.h"
 #include "qwaylandscreen_p.h"
 #include "qwaylandcursor_p.h"
@@ -187,7 +189,9 @@ QWaylandInputDevice::QWaylandInputDevice(QWaylandDisplay *display, int version,
     , mDisplay(display->wl_display())
     , mVersion(qMin(version, 4))
     , mCaps(0)
+#if QT_CONFIG(wayland_datadevice)
     , mDataDevice(0)
+#endif
     , mKeyboard(0)
     , mPointer(0)
     , mTouch(0)
@@ -196,7 +200,7 @@ QWaylandInputDevice::QWaylandInputDevice(QWaylandDisplay *display, int version,
     , mSerial(0)
     , mTouchDevice(0)
 {
-#if QT_CONFIG(draganddrop)
+#if QT_CONFIG(wayland_datadevice)
     if (mQDisplay->dndSelectionHandler()) {
         mDataDevice = mQDisplay->dndSelectionHandler()->getDataDevice(this);
     }
@@ -286,6 +290,7 @@ void QWaylandInputDevice::handleEndDrag()
         mPointer->releaseButtons();
 }
 
+#if QT_CONFIG(wayland_datadevice)
 void QWaylandInputDevice::setDataDevice(QWaylandDataDevice *device)
 {
     mDataDevice = device;
@@ -296,6 +301,7 @@ QWaylandDataDevice *QWaylandInputDevice::dataDevice() const
     Q_ASSERT(mDataDevice);
     return mDataDevice;
 }
+#endif
 
 void QWaylandInputDevice::setTextInput(QWaylandTextInput *textInput)
 {
diff --git a/src/client/qwaylandinputdevice_p.h b/src/client/qwaylandinputdevice_p.h
index d8bd0062f..4d0a47597 100644
--- a/src/client/qwaylandinputdevice_p.h
+++ b/src/client/qwaylandinputdevice_p.h
@@ -111,8 +111,10 @@ public:
     void handleWindowDestroyed(QWaylandWindow *window);
     void handleEndDrag();
 
+#if QT_CONFIG(wayland_datadevice)
     void setDataDevice(QWaylandDataDevice *device);
     QWaylandDataDevice *dataDevice() const;
+#endif
 
     void setTextInput(QWaylandTextInput *textInput);
     QWaylandTextInput *textInput() const;
@@ -143,7 +145,9 @@ private:
 
     struct wl_surface *pointerSurface;
 
+#if QT_CONFIG(wayland_datadevice)
     QWaylandDataDevice *mDataDevice;
+#endif
 
     Keyboard *mKeyboard;
     Pointer *mPointer;
diff --git a/src/client/qwaylandwindow.cpp b/src/client/qwaylandwindow.cpp
index dec4d1157..00fbb00de 100644
--- a/src/client/qwaylandwindow.cpp
+++ b/src/client/qwaylandwindow.cpp
@@ -40,7 +40,6 @@
 #include "qwaylandwindow_p.h"
 
 #include "qwaylandbuffer_p.h"
-#include "qwaylanddatadevice_p.h"
 #include "qwaylanddisplay_p.h"
 #include "qwaylandinputdevice_p.h"
 #include "qwaylandscreen_p.h"
@@ -54,6 +53,11 @@
 #include "qwaylanddecorationfactory_p.h"
 #include "qwaylandshmbackingstore_p.h"
 
+#if QT_CONFIG(wayland_datadevice)
+#include "qwaylanddatadevice_p.h"
+#endif
+
+
 #include <QtCore/QFileInfo>
 #include <QtCore/QPointer>
 #include <QtCore/QRegularExpression>
@@ -825,7 +829,7 @@ void QWaylandWindow::requestActivateWindow()
 
 void QWaylandWindow::unfocus()
 {
-#if QT_CONFIG(draganddrop)
+#if QT_CONFIG(clipboard)
     QWaylandInputDevice *inputDevice = mDisplay->currentInputDevice();
     if (inputDevice && inputDevice->dataDevice()) {
         inputDevice->dataDevice()->invalidateSelectionOffer();