Introduce Qt::AA_PluginApplication replacing Qt::AA_MacPluginApplication.

Reuse the enumeration value for a generic Qt::AA_PluginApplication
attribute since there are also initializations in platform ports other
than OS X that need to be suppressed in the plugin case.

Task-number: QTBUG-47556
Task-number: QTBUG-45762
Change-Id: I885f75030a251ccf66597aae3580499d012934e7
Reviewed-by: Jan Arve Sæther <jan-arve.saether@theqtcompany.com>

src/corelib/global/qnamespace.h

@@ -482,7 +482,8 @@ public:
         AA_DontShowIconsInMenus = 2,
         AA_NativeWindows = 3,
         AA_DontCreateNativeWidgetSiblings = 4,
-        AA_MacPluginApplication = 5,
+        AA_PluginApplication = 5,
+        AA_MacPluginApplication = AA_PluginApplication,  // ### Qt 6: remove me
         AA_DontUseNativeMenuBar = 6,
         AA_MacDontSwapCtrlAndMeta = 7,
         AA_Use96Dpi = 8,

src/corelib/global/qnamespace.qdoc

@@ -120,13 +120,21 @@
            widgets stay non-native unless specifically set by the
            Qt::WA_NativeWindow attribute.
 
-    \value AA_MacPluginApplication Stops the Qt mac application from doing
+    \value AA_PluginApplication Indicates that Qt is used to author a plugin. Depending
-           specific initializations that do not necessarily make sense when using Qt
+           on the operating system, it suppresses specific initializations that do not
-           to author a plugin. This includes avoiding loading our nib for the main
+           necessarily make sense in the plugin case.
-           menu and not taking possession of the native menu bar. When setting this
+
+           For example on OS X, this includes avoiding loading our nib for the main
+           menu and not taking possession of the native menu bar. Setting this
            attribute to true will also set the AA_DontUseNativeMenuBar attribute
            to true. It also disables native event filters.
 
+           This attribute has been added in Qt 5.7. It must be set before
+           \l {QGuiApplication}{Q(Gui)Application} is constructed.
+
+     \value AA_MacPluginApplication This attribute has been deprecated.
+           Use AA_PluginApplication instead.
+
     \value AA_DontUseNativeMenuBar All menubars created while this attribute is
            set to true won't be used as a native menubar (e.g, the menubar at
            the top of the main screen on OS X or at the bottom in Windows CE).

src/corelib/kernel/qcoreapplication.cpp

@@ -2697,7 +2697,7 @@ void QCoreApplication::removeLibraryPath(const QString &path)
     i.e. MSG or XCB event structs.
 
     \note Native event filters will be disabled when the application the
-    Qt::AA_MacPluginApplication attribute is set.
+    Qt::AA_PluginApplication attribute is set.
 
     For maximum portability, you should always try to use QEvent
     and QObject::installEventFilter() whenever possible.
@@ -2708,8 +2708,8 @@ void QCoreApplication::removeLibraryPath(const QString &path)
 */
 void QCoreApplication::installNativeEventFilter(QAbstractNativeEventFilter *filterObj)
 {
-    if (QCoreApplication::testAttribute(Qt::AA_MacPluginApplication)) {
+    if (QCoreApplication::testAttribute(Qt::AA_PluginApplication)) {
-        qWarning("Native event filters are not applied when the Qt::AA_MacPluginApplication attribute is set");
+        qWarning("Native event filters are not applied when the Qt::AA_PluginApplication attribute is set");
         return;
     }
 

src/plugins/platforms/cocoa/qcocoaapplication.mm

@@ -181,7 +181,7 @@ QT_BEGIN_NAMESPACE
 
 void qt_redirectNSApplicationSendEvent()
 {
-    if (QCoreApplication::testAttribute(Qt::AA_MacPluginApplication))
+    if (QCoreApplication::testAttribute(Qt::AA_PluginApplication))
         // In a plugin we cannot chain sendEvent hooks: a second plugin could
         // store the implementation of the first, which during the program flow
         // can be unloaded.
@@ -207,7 +207,7 @@ void qt_redirectNSApplicationSendEvent()
 
 void qt_resetNSApplicationSendEvent()
 {
-    if (QCoreApplication::testAttribute(Qt::AA_MacPluginApplication))
+    if (QCoreApplication::testAttribute(Qt::AA_PluginApplication))
         return;
 
 

src/plugins/platforms/cocoa/qcocoaintegration.mm

@@ -316,7 +316,7 @@ QCocoaIntegration::QCocoaIntegration(const QStringList &paramList)
     // ### For AA_MacPluginApplication we don't want to load the menu nib.
     // Qt 4 also does not set the application delegate, so that behavior
     // is matched here.
-    if (!QCoreApplication::testAttribute(Qt::AA_MacPluginApplication)) {
+    if (!QCoreApplication::testAttribute(Qt::AA_PluginApplication)) {
 
         // Set app delegate, link to the current delegate (if any)
         QCocoaApplicationDelegate *newDelegate = [QCocoaApplicationDelegate sharedDelegate];
@@ -343,7 +343,7 @@ QCocoaIntegration::~QCocoaIntegration()
     qt_resetNSApplicationSendEvent();
 
     QMacAutoReleasePool pool;
-    if (!QCoreApplication::testAttribute(Qt::AA_MacPluginApplication)) {
+    if (!QCoreApplication::testAttribute(Qt::AA_PluginApplication)) {
         // remove the apple event handlers installed by QCocoaApplicationDelegate
         QCocoaApplicationDelegate *delegate = [QCocoaApplicationDelegate sharedDelegate];
         [delegate removeAppleEventHandlers];