Add QScreenOrientationChangeEvent and rotation support to wayland client

Qt Compositor propagates screen orientation changes to wayland, which
are then picked up by the wayland client. The wayland client then sends
a QScreenOrientationChangeEvent to QApplication, which can handle the
orientation change.

Change-Id: Ieb2225e52b7e3c318648f2cb21dab7937f301505
Reviewed-on: http://codereview.qt.nokia.com/1063
Reviewed-by: Matthias Ettrich

4 files changed, 37 insertions, 22 deletions

diff --git a/src/plugins/platforms/wayland/windowmanager_integration/qwaylandwindowmanager-client-protocol.h b/src/plugins/platforms/wayland/windowmanager_integration/qwaylandwindowmanager-client-protocol.h
index 8b238fb6aa..e781b16c41 100644
--- a/src/plugins/platforms/wayland/windowmanager_integration/qwaylandwindowmanager-client-protocol.h
+++ b/src/plugins/platforms/wayland/windowmanager_integration/qwaylandwindowmanager-client-protocol.h
@@ -39,17 +39,20 @@ struct wl_windowmanager;
 extern const struct wl_interface wl_windowmanager_interface;
 
 struct wl_windowmanager_listener {
-	void (*client_onscreen_visibility)(void *data,
-					   struct wl_windowmanager *wl_windowmanager,
-					   int visible);
+    void (*client_onscreen_visibility)(void *data,
+                                       struct wl_windowmanager *wl_windowmanager,
+                                       int visible);
+    void (*set_screen_rotation)(void *data,
+                                struct wl_windowmanager *wl_windowmanager,
+                                int rotation);
 };
 
 static inline int
 wl_windowmanager_add_listener(struct wl_windowmanager *wl_windowmanager,
-				 const struct wl_windowmanager_listener *listener, void *data)
+                              const struct wl_windowmanager_listener *listener, void *data)
 {
-	return wl_proxy_add_listener((struct wl_proxy *) wl_windowmanager,
-				     (void (**)(void)) listener, data);
+    return wl_proxy_add_listener((struct wl_proxy *) wl_windowmanager,
+                                 (void (**)(void)) listener, data);
 }
 
 #define WL_WINDOWMANAGER_MAP_CLIENT_TO_PROCESS	0
@@ -58,42 +61,42 @@ wl_windowmanager_add_listener(struct wl_windowmanager *wl_windowmanager,
 static inline struct wl_windowmanager *
 wl_windowmanager_create(struct wl_display *display, uint32_t id, uint32_t version)
 {
-	wl_display_bind(display, id, "wl_windowmanager", version);
+    wl_display_bind(display, id, "wl_windowmanager", version);
 
-	return (struct wl_windowmanager *)
-		wl_proxy_create_for_id(display, &wl_windowmanager_interface, id);
+    return (struct wl_windowmanager *)
+            wl_proxy_create_for_id(display, &wl_windowmanager_interface, id);
 }
 
 static inline void
 wl_windowmanager_set_user_data(struct wl_windowmanager *wl_windowmanager, void *user_data)
 {
-	wl_proxy_set_user_data((struct wl_proxy *) wl_windowmanager, user_data);
+    wl_proxy_set_user_data((struct wl_proxy *) wl_windowmanager, user_data);
 }
 
 static inline void *
 wl_windowmanager_get_user_data(struct wl_windowmanager *wl_windowmanager)
 {
-	return wl_proxy_get_user_data((struct wl_proxy *) wl_windowmanager);
+    return wl_proxy_get_user_data((struct wl_proxy *) wl_windowmanager);
 }
 
 static inline void
 wl_windowmanager_destroy(struct wl_windowmanager *wl_windowmanager)
 {
-	wl_proxy_destroy((struct wl_proxy *) wl_windowmanager);
+    wl_proxy_destroy((struct wl_proxy *) wl_windowmanager);
 }
 
 static inline void
 wl_windowmanager_map_client_to_process(struct wl_windowmanager *wl_windowmanager, uint32_t processid)
 {
-	wl_proxy_marshal((struct wl_proxy *) wl_windowmanager,
-			 WL_WINDOWMANAGER_MAP_CLIENT_TO_PROCESS, processid);
+    wl_proxy_marshal((struct wl_proxy *) wl_windowmanager,
+                     WL_WINDOWMANAGER_MAP_CLIENT_TO_PROCESS, processid);
 }
 
 static inline void
 wl_windowmanager_authenticate_with_token(struct wl_windowmanager *wl_windowmanager, const char *processid)
 {
-	wl_proxy_marshal((struct wl_proxy *) wl_windowmanager,
-			 WL_WINDOWMANAGER_AUTHENTICATE_WITH_TOKEN, processid);
+    wl_proxy_marshal((struct wl_proxy *) wl_windowmanager,
+                     WL_WINDOWMANAGER_AUTHENTICATE_WITH_TOKEN, processid);
 }
 
 #ifdef  __cplusplus
diff --git a/src/plugins/platforms/wayland/windowmanager_integration/qwaylandwindowmanagerintegration.cpp b/src/plugins/platforms/wayland/windowmanager_integration/qwaylandwindowmanagerintegration.cpp
index 1889d05a29..7390c52740 100644
--- a/src/plugins/platforms/wayland/windowmanager_integration/qwaylandwindowmanagerintegration.cpp
+++ b/src/plugins/platforms/wayland/windowmanager_integration/qwaylandwindowmanagerintegration.cpp
@@ -43,13 +43,14 @@
 #include "qwaylandwindowmanager-client-protocol.h"
 
 #include <stdint.h>
-
 #include <QDebug>
 #include <QEvent>
+#include <QtGui/QtEvents>
 #include <QCoreApplication>
 
 const struct wl_windowmanager_listener QWaylandWindowManagerIntegration::mWindowManagerListener = {
     QWaylandWindowManagerIntegration::wlHandleOnScreenVisibilityChange,
+    QWaylandWindowManagerIntegration::wlHandleScreenOrientationChange,
 };
 
 QWaylandWindowManagerIntegration *QWaylandWindowManagerIntegration::createIntegration(QWaylandDisplay *waylandDisplay)
@@ -78,6 +79,7 @@ struct wl_windowmanager *QWaylandWindowManagerIntegration::windowManager() const
 
 void QWaylandWindowManagerIntegration::wlHandleListenerGlobal(wl_display *display, uint32_t id, const char *interface, uint32_t version, void *data)
 {
+    Q_UNUSED(version);
     if (strcmp(interface, "wl_windowmanager") == 0) {
         QWaylandWindowManagerIntegration *integration = static_cast<QWaylandWindowManagerIntegration *>(data);
         integration->mWaylandWindowManager = wl_windowmanager_create(display, id, 1);
@@ -103,11 +105,19 @@ void QWaylandWindowManagerIntegration::authenticateWithToken(const QByteArray &t
 
 void QWaylandWindowManagerIntegration::wlHandleOnScreenVisibilityChange(void *data, struct wl_windowmanager *wl_windowmanager, int visible)
 {
-    QWaylandWindowManagerIntegration *integration = (QWaylandWindowManagerIntegration *)data;
-
+    Q_UNUSED(data);
+    Q_UNUSED(wl_windowmanager);
     QEvent evt(visible != 0 ? QEvent::ApplicationActivated : QEvent::ApplicationDeactivated);
 
     QCoreApplication::sendEvent(QCoreApplication::instance(), &evt);
 
     qDebug() << "OnScreenVisibility" << (visible != 0);
 }
+
+void QWaylandWindowManagerIntegration::wlHandleScreenOrientationChange(void *data, struct wl_windowmanager *wl_windowmanager, int screenOrientation)
+{
+    Q_UNUSED(data);
+    Q_UNUSED(wl_windowmanager);
+    QScreenOrientationChangeEvent event(screenOrientation);
+    QCoreApplication::sendEvent(QCoreApplication::instance(), &event);
+}
diff --git a/src/plugins/platforms/wayland/windowmanager_integration/qwaylandwindowmanagerintegration.h b/src/plugins/platforms/wayland/windowmanager_integration/qwaylandwindowmanagerintegration.h
index ac76fd6211..6b4658c7e1 100644
--- a/src/plugins/platforms/wayland/windowmanager_integration/qwaylandwindowmanagerintegration.h
+++ b/src/plugins/platforms/wayland/windowmanager_integration/qwaylandwindowmanagerintegration.h
@@ -63,6 +63,7 @@ private:
                                        const char *interface, uint32_t version, void *data);
 
     static void wlHandleOnScreenVisibilityChange(void *data, struct wl_windowmanager *wl_windowmanager, int visible);
+    static void wlHandleScreenOrientationChange(void *data, struct wl_windowmanager *wl_windowmanager, int screenOrientation);
 private:
 
     QWaylandDisplay *mWaylandDisplay;
diff --git a/src/plugins/platforms/wayland/windowmanager_integration/wayland-windowmanager-protocol.c b/src/plugins/platforms/wayland/windowmanager_integration/wayland-windowmanager-protocol.c
index e759b3ac1b..8125dec4d3 100644
--- a/src/plugins/platforms/wayland/windowmanager_integration/wayland-windowmanager-protocol.c
+++ b/src/plugins/platforms/wayland/windowmanager_integration/wayland-windowmanager-protocol.c
@@ -26,12 +26,13 @@
 #include "wayland-util.h"
 
 static const struct wl_message wl_windowmanager_requests[] = {
-	{ "map_client_to_process", "u", NULL },
-	{ "authenticate_with_token", "s", NULL },
+    { "map_client_to_process", "u", NULL },
+    { "authenticate_with_token", "s", NULL },
 };
 
 static const struct wl_message wl_windowmanager_events[] = {
-	{ "client_onscreen_visibility", "i", NULL },
+    { "client_onscreen_visibility", "i", NULL },
+    { "set_screen_rotation", "i", NULL },
 };
 
 WL_EXPORT const struct wl_interface wl_windowmanager_interface = {