Cocoa integration - implement Qt::WindowModal file dialogs

Previously, for Qt::WindowModal dialogs  we were creating modal sheet with beginSheetModalForWindow:
and later (from exec) calling -runModal, essentially making a window modal dialog into (now) application
modal sheet, which is not right- it's centered relative to desktop and the jump from window modal sheet's
position (centered relative to a window) to application modal was quite visible.
Now, instead of [panel runModal] (== [NSApp runModalForWindow:panel])
we call [NSApp runModalForWindow:theRequiredWindow].

Change-Id: I793dc72c7d1fe96497bb35754f4d0eac9a5e00e5
Reviewed-by: Morten Johan Sørvig <morten.sorvig@theqtcompany.com>

2 files changed, 7 insertions, 0 deletions

diff --git a/src/gui/kernel/qplatformdialoghelper.cpp b/src/gui/kernel/qplatformdialoghelper.cpp
index 3d37088182..3d7c2f7bf0 100644
--- a/src/gui/kernel/qplatformdialoghelper.cpp
+++ b/src/gui/kernel/qplatformdialoghelper.cpp
@@ -137,6 +137,12 @@ QVariant  QPlatformDialogHelper::defaultStyleHint(QPlatformDialogHelper::StyleHi
     return QVariant();
 }
 
+void QPlatformDialogHelper::execModalForWindow(QWindow *parent)
+{
+    Q_UNUSED(parent);
+    exec();
+}
+
 // Font dialog
 
 class QFontDialogOptionsPrivate : public QSharedData
diff --git a/src/gui/kernel/qplatformdialoghelper.h b/src/gui/kernel/qplatformdialoghelper.h
index 8b2b9881b7..6d3a367e60 100644
--- a/src/gui/kernel/qplatformdialoghelper.h
+++ b/src/gui/kernel/qplatformdialoghelper.h
@@ -145,6 +145,7 @@ public:
     virtual QVariant styleHint(StyleHint hint) const;
 
     virtual void exec() = 0;
+    virtual void execModalForWindow(QWindow *parent);
     virtual bool show(Qt::WindowFlags windowFlags,
                           Qt::WindowModality windowModality,
                           QWindow *parent) = 0;