Fix compilation of the Windows accessibility code for MinGW.

Temporarily disable the code for MinGW.

Change-Id: I435305167e06af05b9a78901e6e3a35347c5c3f5
Reviewed-by: Jan-Arve Sæther <jan-arve.saether@nokia.com>

src/plugins/platforms/windows/accessible/accessible.pri

@@ -1,15 +1,19 @@
-
 SOURCES += \
-    $$PWD/qwindowsmsaaaccessible.cpp \
+    $$PWD/qwindowsaccessibility.cpp
-    $$PWD/qwindowsaccessibility.cpp \
-    $$PWD/iaccessible2.cpp \
-    $$PWD/comutils.cpp
 
 HEADERS += \
-    $$PWD/qwindowsmsaaaccessible.h \
+    $$PWD/qwindowsaccessibility.h
-    $$PWD/qwindowsaccessibility.h \
-    $$PWD/iaccessible2.h \
-    $$PWD/comutils.h
 
+!*g++* {
+    SOURCES += \
+        $$PWD/qwindowsmsaaaccessible.cpp \
+        $$PWD/iaccessible2.cpp \
+        $$PWD/comutils.cpp
 
-include(../../../../3rdparty/iaccessible2/iaccessible2.pri)
+    HEADERS += \
+        $$PWD/qwindowsmsaaaccessible.h \
+        $$PWD/iaccessible2.h \
+        $$PWD/comutils.h
+
+    include(../../../../3rdparty/iaccessible2/iaccessible2.pri)
+} # !g++

src/plugins/platforms/windows/accessible/iaccessible2.h

@@ -66,6 +66,10 @@
 #include "AccessibleRole.h"
 #include "AccessibleStates.h"
 
+#ifdef Q_CC_MINGW
+#    include <servprov.h>
+#endif
+
 QT_BEGIN_NAMESPACE
 
 class QWindowsIA2Accessible : public QWindowsMsaaAccessible,

src/plugins/platforms/windows/accessible/qwindowsaccessibility.cpp

@@ -54,13 +54,13 @@
 #include <QtGui/qplatformnativeinterface_qpa.h>
 #include <QtGui/qwindow.h>
 #include <QtGui/qguiapplication.h>
-#include <QtWidgets/qapplication.h>
-#include <QtWidgets/qgraphicsitem.h>
-#include <QtWidgets/qgraphicsview.h>
-#include <QtWidgets/qmessagebox.h>
 
 #include "qwindowsaccessibility.h"
-#include "iaccessible2.h"
+
+#ifndef Q_CC_MINGW
+#    include "iaccessible2.h"
+#endif // !Q_CC_MINGW
+
 #include "comutils.h"
 
 #include <oleacc.h>
@@ -185,7 +185,7 @@ void QWindowsAccessibility::notifyAccessibilityUpdate(const QAccessibleEvent &ev
     // An event has to be associated with a window,
     // so find the first parent that is a widget and that has a WId
     QAccessibleInterface *iface = event.accessibleInterface();
-    QWindow *window = iface ? window_helper(iface) : 0;
+    QWindow *window = iface ? QWindowsAccessibility::windowHelper(iface) : 0;
     delete iface;
 
     if (!window) {
@@ -211,6 +211,20 @@ void QWindowsAccessibility::notifyAccessibilityUpdate(const QAccessibleEvent &ev
 #endif // Q_OS_WINCE
 }
 
+QWindow *QWindowsAccessibility::windowHelper(const QAccessibleInterface *iface)
+{
+    QWindow *window = iface->window();
+    if (!window) {
+        QAccessibleInterface *acc = iface->parent();
+        while (acc && !window) {
+            window = acc->window();
+            QAccessibleInterface *par = acc->parent();
+            delete acc;
+            acc = par;
+        }
+    }
+    return window;
+}
 
 /*!
   \internal
@@ -218,12 +232,16 @@ void QWindowsAccessibility::notifyAccessibilityUpdate(const QAccessibleEvent &ev
 */
 IAccessible *QWindowsAccessibility::wrap(QAccessibleInterface *acc)
 {
+#ifdef Q_CC_MINGW
+    return 0;
+#else
     if (!acc)
         return 0;
     QWindowsIA2Accessible *wacc = new QWindowsIA2Accessible(acc);
     IAccessible *iacc = 0;
     wacc->QueryInterface(IID_IAccessible, (void**)&iacc);
     return iacc;
+#endif
 }
 
 /*!
@@ -260,7 +278,7 @@ bool QWindowsAccessibility::handleAccessibleObjectFromWindowRequest(HWND hwnd, W
 #if 1
         // Ignoring all requests while starting up
         // ### Maybe QPA takes care of this???
-        if (QApplication::startingUp() || QApplication::closingDown())
+        if (QCoreApplication::startingUp() || QCoreApplication::closingDown())
             return false;
 #endif
 

src/plugins/platforms/windows/accessible/qwindowsaccessibility.h

@@ -63,6 +63,7 @@ public:
     virtual void cleanup();
     */
     static IAccessible *wrap(QAccessibleInterface *acc);
+    static QWindow *windowHelper(const QAccessibleInterface *iface);
 
     static QPair<QObject*, int> getCachedObject(int entryId);
 };

src/plugins/platforms/windows/accessible/qwindowsmsaaaccessible.cpp

@@ -1180,21 +1180,6 @@ HRESULT STDMETHODCALLTYPE QWindowsMsaaAccessible::get_accSelection(VARIANT *pvar
     return S_OK;
 }
 
-QWindow *window_helper(const QAccessibleInterface *iface)
-{
-    QWindow *window = iface->window();
-    if (!window) {
-        QAccessibleInterface *acc = iface->parent();
-        while (acc && !window) {
-            window = acc->window();
-            QAccessibleInterface *par = acc->parent();
-            delete acc;
-            acc = par;
-        }
-    }
-    return window;
-}
-
 /**************************************************************\
  *                         IOleWindow                          *
  **************************************************************/
@@ -1207,7 +1192,7 @@ HRESULT STDMETHODCALLTYPE QWindowsMsaaAccessible::GetWindow(HWND *phwnd)
     if (!accessible->isValid())
         return E_UNEXPECTED;
 
-    QWindow *window = window_helper(accessible);
+    QWindow *window = QWindowsAccessibility::windowHelper(accessible);
     if (!window)
         return E_FAIL;
 

src/plugins/platforms/windows/accessible/qwindowsmsaaaccessible.h

@@ -44,6 +44,7 @@
 #include <QtCore/QtConfig>
 #ifndef QT_NO_ACCESSIBILITY
 
+#include "../qtwindows_additional.h"
 #include <oleacc.h>
 #include "Accessible2.h"
 #include <QtCore/qsharedpointer.h>
@@ -55,7 +56,7 @@ QT_BEGIN_NAMESPACE
 bool debug_accessibility();
 # define accessibleDebug !debug_accessibility() ? (void)0 : qDebug
 #else
-# define accessibleDebug()
+# define accessibleDebug
 #endif
 
 #define DEBUG_SHOW_ATCLIENT_COMMANDS

src/plugins/platforms/windows/qtwindows_additional.h

@@ -71,6 +71,16 @@
 #define IFACEMETHODIMP STDMETHODIMP
 #define IFACEMETHODIMP_(type) STDMETHODIMP_(type)
 
+// For accessibility:
+#ifdef __cplusplus
+    #define EXTERN_C extern "C"
+#else
+    #define EXTERN_C extern
+#endif
+
+#define CHILDID_SELF 0
+#define WM_GETOBJECT 0x003D
+
 #if !defined(__MINGW64_VERSION_MAJOR)
 
 #define STATE_SYSTEM_HASPOPUP 0x40000000