Cocoa: Fix QFontDialog, QColorDialog auto-tests

The new Cocoa event dispatcher made apparent some deficiencies in the
way the dialog helpers were being hidden. In particular, we would not stop
a dialog helper's modal loop when closing the dialog, resulting in the
auto-tests hanging. Also, since the QApplication event loop is runnig with
[NSApp run] in the stack, the previous workarounds are no longer needed.

Task-number: QTBUG-24321
Change-Id: Ifba713c286638d78a699c319a15683d09714f06f
Reviewed-by: Richard Moe Gustavsen <richard.gustavsen@digia.com>
Reviewed-by: Morten Johan Sørvig <morten.sorvig@digia.com>

src/plugins/platforms/cocoa/qcocoacolordialoghelper.h

@@ -59,6 +59,8 @@ public:
 
     void setCurrentColor(const QColor&);
     QColor currentColor() const;
+
+    bool event(QEvent *);
 };
 
 QT_END_NAMESPACE

src/plugins/platforms/cocoa/qcocoacolordialoghelper.mm

@@ -161,6 +161,10 @@ QT_NAMESPACE_ALIAS_OBJC_CLASS(QNSColorPanelDelegate);
 
 - (void)closePanel
 {
+    if (mDialogIsExecuting) {
+        mDialogIsExecuting = false;
+        [NSApp stopModal];
+    }
     [mColorPanel close];
 }
 
@@ -488,6 +492,22 @@ QColor QCocoaColorDialogHelper::currentColor() const
     return sharedColorPanel()->currentColor();
 }
 
+bool QCocoaColorDialogHelper::event(QEvent *e)
+{
+    if (e->type() == QEvent::KeyPress) {
+        QKeyEvent *ke = static_cast<QKeyEvent *>(e);
+        if (ke->key() == Qt::Key_Enter || ke->key() == Qt::Key_Return) {
+            emit accept();
+            return true;
+        } else if (ke->key() == Qt::Key_Escape) {
+            emit reject();
+            return true;
+        }
+    }
+
+    return false;
+}
+
 QT_END_NAMESPACE
 
 #endif // QT_NO_COLORDIALOG

src/plugins/platforms/cocoa/qcocoafontdialoghelper.mm

@@ -203,6 +203,10 @@ QT_NAMESPACE_ALIAS_OBJC_CLASS(QNSFontPanelDelegate);
 
 - (void)closePanel
 {
+    if (mDialogIsExecuting) {
+        mDialogIsExecuting = false;
+        [NSApp stopModal];
+    }
     [mFontPanel close];
 }
 

src/widgets/dialogs/qcolordialog.cpp

@@ -2166,6 +2166,8 @@ void QColorDialog::keyPressEvent(QKeyEvent *e)
         }
         e->accept();
         return;
+    } else if (d->nativeDialogInUse && d->platformColorDialogHelper()->event(e)) {
+        return;
     }
     QDialog::keyPressEvent(e);
 }

src/widgets/dialogs/qfontdialog.cpp

@@ -983,14 +983,9 @@ void QFontDialog::setVisible(bool visible)
     Q_D(QFontDialog);
     if (d->canBeNativeDialog())
         d->setNativeDialogVisible(visible);
-    if (d->nativeDialogInUse) {
     // Set WA_DontShowOnScreen so that QDialog::setVisible(visible) below
     // updates the state correctly, but skips showing the non-native version:
-        setAttribute(Qt::WA_DontShowOnScreen, true);
-    } else {
-        d->nativeDialogInUse = false;
-        setAttribute(Qt::WA_DontShowOnScreen, false);
-    }
+    setAttribute(Qt::WA_DontShowOnScreen, d->nativeDialogInUse);
     QDialog::setVisible(visible);
 }
 

tests/auto/widgets/dialogs/qcolordialog/tst_qcolordialog.cpp

@@ -144,13 +144,10 @@ void tst_QColorDialog::postKeyReturn() {
 
 void tst_QColorDialog::testGetRgba()
 {
-#ifdef Q_OS_MAC
-    QEXPECT_FAIL("", "Sending QTest::keyClick to OSX color dialog helper fails, see QTBUG-24320", Continue);
-#endif
-    bool ok = false;
-    QTimer::singleShot(500, this, SLOT(postKeyReturn()));
-    QColorDialog::getRgba(0xffffffff, &ok);
-    QVERIFY(ok);
+    QColorDialog cd;
+    cd.show();
+    QTimer::singleShot(0, this, SLOT(postKeyReturn()));
+    QTRY_COMPARE(cd.result(), int(QDialog::Accepted));
 }
 
 void tst_QColorDialog::defaultOkButton()

tests/auto/widgets/dialogs/qfontdialog/tst_qfontdialog.cpp

@@ -64,7 +64,7 @@ public:
 
 public slots:
     void postKeyReturn();
-    void testGetFont();
+    void testDefaultOkButton();
     void testSetFont();
 
 public slots:
@@ -116,15 +116,12 @@ void tst_QFontDialog::postKeyReturn() {
     }
 }
 
-void tst_QFontDialog::testGetFont()
+void tst_QFontDialog::testDefaultOkButton()
 {
-#ifdef Q_OS_MAC
-    QEXPECT_FAIL("", "Sending QTest::keyClick to OSX font dialog helper fails, see QTBUG-24321", Continue);
-#endif
-    bool ok = false;
-    QTimer::singleShot(2000, this, SLOT(postKeyReturn()));
-    QFontDialog::getFont(&ok);
-    QVERIFY(ok);
+    QFontDialog fd;
+    fd.show();
+    QTimer::singleShot(0, this, SLOT(postKeyReturn()));
+    QTRY_COMPARE(fd.result(), int(QDialog::Accepted));
 }
 
 void tst_QFontDialog::runSlotWithFailsafeTimer(const char *member)
@@ -144,7 +141,7 @@ void tst_QFontDialog::runSlotWithFailsafeTimer(const char *member)
 
 void tst_QFontDialog::defaultOkButton()
 {
-    runSlotWithFailsafeTimer(SLOT(testGetFont()));
+    runSlotWithFailsafeTimer(SLOT(testDefaultOkButton()));
 }
 
 void tst_QFontDialog::testSetFont()