some fixes on mac for issue 1164

src/podcast/youtube/UBYouTubePublisher.cpp

@@ -340,7 +340,13 @@ UBYouTubePublishingDialog::UBYouTubePublishingDialog(const QString& videoFilePat
     dialogButtons->button(QDialogButtonBox::Ok)->setEnabled(false);
     dialogButtons->button(QDialogButtonBox::Ok)->setText(tr("Upload"));
 
+    UBSettings* settings = UBSettings::settings();
+
+    email->setText(settings->youTubeUserEMail->get().toString());
+    password->setText(settings->password(email->text()));
+
     youtubeCredentialsPersistence->setChecked(UBSettings::settings()->youTubeCredentialsPersistence->get().toBool());
+    updatePersistanceEnableState();
 }
 
 
@@ -353,7 +359,7 @@ void UBYouTubePublishingDialog::updatePersistanceEnableState()
 {
     bool enabled = email->text().length() || password->text().length();
     youtubeCredentialsPersistence->setEnabled(enabled);
-    youtubeCredentialsPersistence->setStyleSheet(enabled ? "color:black;" : "color lightgray;");
+    youtubeCredentialsPersistence->setStyleSheet(enabled ? "color:black;" : "color : lightgrey;");
 }
 
 void UBYouTubePublishingDialog::updateUIState(const QString& string)
@@ -367,6 +373,7 @@ void UBYouTubePublishingDialog::updateUIState(const QString& string)
             &&  password->text().length() > 0;
 
     dialogButtons->button(QDialogButtonBox::Ok)->setEnabled(ok);
+    updatePersistanceEnableState();
 }