Add further theme hints to QPlatformTheme.

- Add hints for QDialog/QDialogButtonBox.
- Add hint for available popup-menu area.
- Add keyboard scheme hint replacing
  QGuiApplicationPrivate::currentKeyPlatform()

Reviewed-by: Samuel Rødal <samuel.rodal@nokia.com>
Reviewed-by: Morten Johan Sørvig <morten.sorvig@nokia.com>

Task-number: QTBUG-24204
Task-number: QTBUG-24315

Change-Id: I6653786b0dcb49a6fc264d3b9891dbfee502bd3e
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@nokia.com>

2 files changed, 8 insertions, 9 deletions

diff --git a/tests/auto/widgets/dialogs/qmessagebox/qmessagebox.pro b/tests/auto/widgets/dialogs/qmessagebox/qmessagebox.pro
index f25ed650c3..5b8f796485 100644
--- a/tests/auto/widgets/dialogs/qmessagebox/qmessagebox.pro
+++ b/tests/auto/widgets/dialogs/qmessagebox/qmessagebox.pro
@@ -1,7 +1,7 @@
 CONFIG += testcase
 TEMPLATE = app
 TARGET = tst_qmessagebox
-QT += widgets testlib
+QT += gui-private core-private widgets testlib
 DEPENDPATH += .
 INCLUDEPATH += . 
 
diff --git a/tests/auto/widgets/dialogs/qmessagebox/tst_qmessagebox.cpp b/tests/auto/widgets/dialogs/qmessagebox/tst_qmessagebox.cpp
index 7fc752488d..1d391a1c09 100644
--- a/tests/auto/widgets/dialogs/qmessagebox/tst_qmessagebox.cpp
+++ b/tests/auto/widgets/dialogs/qmessagebox/tst_qmessagebox.cpp
@@ -48,6 +48,8 @@
 #include <QApplication>
 #include <QPushButton>
 #include <QDialogButtonBox>
+#include <QPlatformTheme>
+#include <private/qguiapplication_p.h>
 #if defined(Q_OS_MAC) && !defined(QT_NO_STYLE_MAC)
 #include <QMacStyle>
 #endif
@@ -407,15 +409,12 @@ void tst_QMessageBox::staticSourceCompat()
     sendKeySoon();
     ret = QMessageBox::information(0, "title", "text", QMessageBox::Yes, QMessageBox::No);
     int expectedButton = int(QMessageBox::Yes);
-#if defined(Q_OS_MAC) && !defined(QT_NO_STYLE_MAC)
-    if (qobject_cast<QMacStyle *>(qApp->style()))
-        expectedButton = int(QMessageBox::No);
-#elif !defined(QT_NO_STYLE_CLEANLOOKS)
-    if (qobject_cast<QCleanlooksStyle *>(qApp->style())) {
-        QEXPECT_FAIL("", "Special handling of QMessageBox::information buttons for Cleanlooks not implemented yet, QTBUG-24315", Continue);
-        expectedButton = int(QMessageBox::No);
+    if (const QPlatformTheme *theme = QGuiApplicationPrivate::platformTheme()) {
+        const int dialogButtonBoxLayout = theme->themeHint(QPlatformTheme::DialogButtonBoxLayout).toInt();
+        if (dialogButtonBoxLayout == QDialogButtonBox::MacLayout
+            || dialogButtonBoxLayout == QDialogButtonBox::GnomeLayout)
+            expectedButton = int(QMessageBox::No);
     }
-#endif
     QCOMPARE(ret, expectedButton);
     QCOMPARE(keyToSend, -1);