OSX: support fake fullscreen and etc

* Fix QCocoaWindow::setGeometry() to respect WindowFrameInclusive
* Support fake fullscreen on 10.6 or WindowFullscreenButtonHint was not set on
10.7 and later
* Fix tst_qwindow on 10.6 and later

Task-number: QTBUG-23059
Task-number: QTBUG-34629
Change-Id: I6e032ca55b45674388b00506a424d3bd7ece429f
Reviewed-by: Gabriel de Dietrich <gabriel.dedietrich@digia.com>

3 files changed, 67 insertions, 13 deletions

diff --git a/src/plugins/platforms/cocoa/qcocoawindow.h b/src/plugins/platforms/cocoa/qcocoawindow.h
index c7ec315f04..69bea31343 100644
--- a/src/plugins/platforms/cocoa/qcocoawindow.h
+++ b/src/plugins/platforms/cocoa/qcocoawindow.h
@@ -214,6 +214,11 @@ public: // for QNSView
     static const int NoAlertRequest;
     NSInteger m_alertRequest;
     id monitor;
+
+    // used by showFullScreen in fake mode
+    QRect m_normalGeometry;
+    Qt::WindowFlags m_oldWindowFlags;
+    NSApplicationPresentationOptions m_presentationOptions;
 };
 
 QT_END_NAMESPACE
diff --git a/src/plugins/platforms/cocoa/qcocoawindow.mm b/src/plugins/platforms/cocoa/qcocoawindow.mm
index ad11a525ad..5702689d84 100644
--- a/src/plugins/platforms/cocoa/qcocoawindow.mm
+++ b/src/plugins/platforms/cocoa/qcocoawindow.mm
@@ -220,6 +220,7 @@ QCocoaWindow::QCocoaWindow(QWindow *tlw)
     , m_overrideBecomeKey(false)
     , m_alertRequest(NoAlertRequest)
     , monitor(nil)
+    , m_normalGeometry(QRect(0,0,-1,-1))
 {
 #ifdef QT_COCOA_ENABLE_WINDOW_DEBUG
     qDebug() << "QCocoaWindow::QCocoaWindow" << this;
@@ -271,8 +272,16 @@ QSurfaceFormat QCocoaWindow::format() const
     return window()->requestedFormat();
 }
 
-void QCocoaWindow::setGeometry(const QRect &rect)
+void QCocoaWindow::setGeometry(const QRect &rectIn)
 {
+    QRect rect = rectIn;
+    // This means it is a call from QWindow::setFramePosition() and
+    // the coordinates include the frame (size is still the contents rectangle).
+    if (qt_window_private(const_cast<QWindow *>(window()))->positionPolicy
+            == QWindowPrivate::WindowFrameInclusive) {
+        const QMargins margins = frameMargins();
+        rect.moveTopLeft(rect.topLeft() + QPoint(margins.left(), margins.top()));
+    }
     if (geometry() == rect)
         return;
 #ifdef QT_COCOA_ENABLE_WINDOW_DEBUG
@@ -1012,13 +1021,35 @@ void QCocoaWindow::syncWindowState(Qt::WindowState newState)
     }
 
     if ((m_synchedWindowState & Qt::WindowFullScreen) != (newState & Qt::WindowFullScreen)) {
+        bool fakeFullScreen = true;
 #if MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_7
         if (QSysInfo::QSysInfo::MacintoshVersion >= QSysInfo::MV_10_7) {
-            [m_nsWindow toggleFullScreen : m_nsWindow];
-        } else {
-            // TODO: "normal" fullscreen
+            if (window()->flags() & Qt::WindowFullscreenButtonHint) {
+                fakeFullScreen = false;
+                [m_nsWindow toggleFullScreen : m_nsWindow];
+            }
         }
 #endif
+        if (fakeFullScreen) {
+            if (newState & Qt::WindowFullScreen) {
+                QScreen *screen = window()->screen();
+                if (screen) {
+                    if (m_normalGeometry.width() < 0) {
+                        m_oldWindowFlags = m_windowFlags;
+                        window()->setFlags(window()->flags() | Qt::FramelessWindowHint);
+                        m_normalGeometry = windowGeometry();
+                        setGeometry(screen->geometry());
+                        m_presentationOptions = [NSApp presentationOptions];
+                        [NSApp setPresentationOptions : m_presentationOptions | NSApplicationPresentationAutoHideMenuBar | NSApplicationPresentationAutoHideDock];
+                    }
+                }
+            } else {
+                window()->setFlags(m_oldWindowFlags);
+                setGeometry(m_normalGeometry);
+                m_normalGeometry.setRect(0, 0, -1, -1);
+                [NSApp setPresentationOptions : m_presentationOptions];
+            }
+        }
     }
 
     // New state is now the current synched state
diff --git a/tests/auto/gui/kernel/qwindow/tst_qwindow.cpp b/tests/auto/gui/kernel/qwindow/tst_qwindow.cpp
index 259c840ae7..76b3a4f6cc 100644
--- a/tests/auto/gui/kernel/qwindow/tst_qwindow.cpp
+++ b/tests/auto/gui/kernel/qwindow/tst_qwindow.cpp
@@ -61,6 +61,7 @@ private slots:
     void eventOrderOnShow();
     void resizeEventAfterResize();
     void mapGlobal();
+    void positioning_data();
     void positioning();
     void isExposed();
     void isActive();
@@ -93,7 +94,6 @@ private:
     QTouchDevice *touchDevice;
 };
 
-
 void tst_QWindow::mapGlobal()
 {
     QWindow a;
@@ -116,10 +116,10 @@ void tst_QWindow::mapGlobal()
 class Window : public QWindow
 {
 public:
-    Window()
+    Window(const Qt::WindowFlags flags = Qt::Window | Qt::WindowTitleHint | Qt::WindowMinMaxButtonsHint | Qt::WindowCloseButtonHint)
     {
         reset();
-        setFlags(Qt::Window | Qt::WindowTitleHint | Qt::WindowMinMaxButtonsHint | Qt::WindowCloseButtonHint);
+        setFlags(flags);
     }
 
     void reset()
@@ -188,6 +188,23 @@ void tst_QWindow::resizeEventAfterResize()
     QTRY_COMPARE(window.received(QEvent::Resize), 2);
 }
 
+void tst_QWindow::positioning_data()
+{
+    QTest::addColumn<int>("windowflags");
+    QTest::addColumn<int>("resizecount");
+
+    QTest::newRow("default") << int(Qt::Window | Qt::WindowTitleHint | Qt::WindowMinMaxButtonsHint | Qt::WindowCloseButtonHint | Qt::WindowFullscreenButtonHint)
+#if defined(Q_OS_OSX) && MAC_OS_X_VERSION_MAX_ALLOWED < MAC_OS_X_VERSION_10_7
+                             << 4;
+#else
+                             << 3;
+#endif
+
+#ifdef Q_OS_OSX
+    QTest::newRow("fake") << int(Qt::Window | Qt::WindowTitleHint | Qt::WindowMinMaxButtonsHint | Qt::WindowCloseButtonHint) << 4;
+#endif
+}
+
 void tst_QWindow::positioning()
 {
     if (!QGuiApplicationPrivate::platformIntegration()->hasCapability(
@@ -200,7 +217,9 @@ void tst_QWindow::positioning()
     const QSize size = QSize(300, 40);
     const QRect geometry(QPoint(80, 80), size);
 
-    Window window;
+    QFETCH(int, windowflags);
+    QFETCH(int, resizecount);
+    Window window((Qt::WindowFlags)windowflags);
     window.setGeometry(QRect(QPoint(20, 20), size));
     window.setFramePosition(QPoint(40, 40)); // Move window around before show, size must not change.
     QCOMPARE(window.geometry().size(), size);
@@ -223,14 +242,13 @@ void tst_QWindow::positioning()
 
     window.setWindowState(Qt::WindowFullScreen);
     QCoreApplication::processEvents();
-#ifdef Q_OS_OSX
-    QEXPECT_FAIL("", "Multiple failures in this test on Mac OS X, see QTBUG-23059", Abort);
-#endif
     QTRY_COMPARE(window.received(QEvent::Resize), 2);
 
+    QTest::qWait(2000);
+
     window.setWindowState(Qt::WindowNoState);
     QCoreApplication::processEvents();
-    QTRY_COMPARE(window.received(QEvent::Resize), 3);
+    QTRY_COMPARE(window.received(QEvent::Resize), resizecount);
 
     QTRY_COMPARE(originalPos, window.position());
     QTRY_COMPARE(originalFramePos, window.framePosition());
@@ -239,7 +257,7 @@ void tst_QWindow::positioning()
     // if our positioning is actually fully respected by the window manager
     // test whether it correctly handles frame positioning as well
     if (originalPos == geometry.topLeft() && (originalMargins.top() != 0 || originalMargins.left() != 0)) {
-        QPoint framePos = QGuiApplication::primaryScreen()->availableVirtualGeometry().topLeft() + QPoint(40, 40);
+        QPoint framePos = QPlatformScreen::platformScreenForWindow(&window)->availableGeometry().topLeft() + QPoint(40, 40);
 
         window.reset();
         window.setFramePosition(framePos);