Parent Stage hidden on switching to the 3rd party window and again switching to Application Stage

Question

My parent stage "stage1" is opening child stage "stage2" and i have set child stage's modality as below.

stage2.initModality(Modality.APPLICATION_MODAL);

Now when i open stage2 from stage1, stage1 is appears behind stage2 that is expected, but when i press "Ctrl+Tab" key, control switches to 3rd paty applicaton for example "Outlook", then I again press "Ctrl+Tab" key, it returns to our main applicaton and it shows stage2 but stage1 appears hidden. My expectation is that stage1 should be hidden behind stage2.

Any help is greatly appriciated.

Answer 1

It is because Stage2.getOwner() == null is true. Your expectation is the way it works, when it is false. so to solve your problem do this

Stage2.initOwner(Stage1);

ediit

here is some demo

@Override
public void start(Stage stage) {
    Pane p = new Pane();
    p.setStyle("-fx-background-color: red");
    stage.setTitle("I AM THE PARENT");
    Scene scene = new Scene(p);
    stage.setWidth(600);
    stage.setHeight(600);
    stage.setScene(scene);
    stage.show();
    Stage s = new Stage(StageStyle.DECORATED);
    s.initModality(Modality.APPLICATION_MODAL);
    p = new Pane();
    p.setStyle("-fx-background-color: yellow");
    s.setScene(new Scene(p,150,150));
    //s.initOwner(stage); //with this commented it wont work
    s.show();
}

Also you will notice that when your press CTRL + TAB the windows popup only shows your second window STAGE2, that is who he knows of, because its has not parent, but when it has owner is shows only the owner