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Recent Posts
Vaadin Forum4. Other

Modal window button focus

Zoro Zoro
6 years ago May 21, 2015 12:31pm

Hi,
I have problem with focusing button on modal window.

I am calling
Button.focus();
focus listener is triggered, but button loses focus
When I call TextField.focus(), it focuses TextField but not button.

http://dev.pakom.hr/Android_Maloprodaja/
- this is my program and I am calling focus to button Nastavi (F11)

 

Emmanuelle Victoria
6 years ago May 21, 2015 2:29pm

How sure you are that the button loses the focus?

Emmanuelle Victoria
6 years ago May 21, 2015 2:38pm

Hmm upon checking the demo app the button sure does lose the focus. Can you attach your codes? What does the focuslistener do?

Zoro Zoro
6 years ago May 21, 2015 3:11pm

This i code from window:

package hr.pakom.android_maloprodaja;

import java.util.Iterator;

import com.vaadin.event.FieldEvents.BlurEvent;
import com.vaadin.event.FieldEvents.BlurListener;
import com.vaadin.event.FieldEvents.FocusEvent;
import com.vaadin.event.FieldEvents.FocusListener;
import com.vaadin.event.ShortcutAction;
import com.vaadin.event.ShortcutAction.KeyCode;
import com.vaadin.event.ShortcutListener;
import com.vaadin.ui.AbsoluteLayout;
import com.vaadin.ui.Button;
import com.vaadin.ui.Component;
import com.vaadin.ui.PasswordField;
import com.vaadin.ui.TextField;
import com.vaadin.ui.Window;

public class Login extends Window {
    
    GlobalneFunkcije global;
    DatabaseHelper db;
    
    Login_CC UpitPasswordCC;
    AbsoluteLayout MainLayout;
    
    Button ButtonNastavi;
    Button ButtonOdustani;
    
    TextField KorImeTextField;
    PasswordField LozinkaPasswordField;
    
    int _iFocusedTabIndex;
    
    public Login() {
        
        super("Prijava"); // Set window caption
        center();
        setClosable(false);
        setModal(true);
        setResizable(false);
        
        global = GlobalneFunkcije.getInstance();
        db = new DatabaseHelper();
        
        UpitPasswordCC = new Login_CC();
        setContent(UpitPasswordCC);
        
        MainLayout = UpitPasswordCC.mainLayout;
        
        ButtonNastavi = UpitPasswordCC.ButtonNastavi;
        ButtonOdustani = UpitPasswordCC.ButtonOdustani;
        
        KorImeTextField = UpitPasswordCC.KorImeTextField;
        LozinkaPasswordField = UpitPasswordCC.LozinkaPasswordField;
        
        ButtonNastavi.setClickShortcut(KeyCode.F11);
        ButtonOdustani.setClickShortcut(KeyCode.ESCAPE);
        
        DodajFocusListener();
        addShortcutListener(skEnterListener);
        addShortcutListener(skUpListener);
        addShortcutListener(skDownListener);
        
        ButtonNastavi.addClickListener(new ButtonNastaviListener());
        ButtonOdustani.addClickListener(new ButtonOdustaniListener());
        
        KorImeTextField.focus();
        
        ButtonNastavi.focus();
    }
    
    
    public class ButtonNastaviListener implements Button.ClickListener {

        @Override
        public void buttonClick(Button.ClickEvent event) {
            
            //PROVJERE
            String sKorIme = KorImeTextField.getValue();
            String sLozinka = LozinkaPasswordField.getValue();
            
            //Da li korisnik postoji
            if (db.Korisnici_ProvjeriPostojanje(sKorIme) == false) {
                KorImeTextField.focus();
                global.PokaziPoruku("Korisnik ne postoji!");
                return;
            }
            
            if (db.Korisnici_IspravnaSifra(sKorIme, sLozinka) == false) {
                LozinkaPasswordField.focus();
                global.PokaziPoruku("Lozinka je pogreano unesena!");
                return;
            }
            
            global.sGlobKorisnik = sKorIme;
            global.bGlobPregled1 = true;
            close();
        }
    }
    
    public class ButtonOdustaniListener implements Button.ClickListener {

        @Override
        public void buttonClick(Button.ClickEvent event) {
            global.bGlobPregled1 = false;
            close();
        }
    }
    
    private void DodajFocusListener() {
        
        Iterator<Component> iterate = MainLayout.iterator();
        while (iterate.hasNext()) {
            Component c = iterate.next();
            
            if (c instanceof TextField) {
                TextField textField = (TextField) c;
                textField.addFocusListener(focusListener);
            }
            
            if (c instanceof PasswordField) {
                PasswordField passwordField = (PasswordField) c;
                passwordField.addFocusListener(focusListener);
            }
            
            if (c instanceof Button) {
                Button button = (Button) c;
                button.addFocusListener(focusListener);
            }
        }
    }
    
     private FocusListener focusListener = new FocusListener() {

         @Override   
         public void focus(FocusEvent event) {
                
             Component c = event.getComponent();
                
            int iTabIndex = -1;
                
            if (c instanceof TextField) {
                TextField textField = (TextField) c;
                iTabIndex = textField.getTabIndex();
                textField.selectAll();
            }
            
            if (c instanceof PasswordField) {
                PasswordField passwordField = (PasswordField) c;
                iTabIndex = passwordField.getTabIndex();
                passwordField.selectAll();
            }
            
            if (c instanceof Button) {
                Button button = (Button) c;
                iTabIndex = button.getTabIndex();
            }
                
            _iFocusedTabIndex = iTabIndex;
         }
     };
        
    ShortcutListener skEnterListener = new ShortcutListener("Enter", ShortcutAction.KeyCode.ENTER, null){

        @Override
        public void handleAction(Object sender, Object target) {
            
            if ((target instanceof TextField) || (target instanceof PasswordField)) {
                FokusirajDalje(0);
            }
            
        }
    };
    
    ShortcutListener skUpListener = new ShortcutListener("Up", ShortcutAction.KeyCode.ARROW_UP, null){

        @Override
        public void handleAction(Object sender, Object target) {
            
            if ((target instanceof TextField) || (target instanceof PasswordField) || (target instanceof Button) ) {
                FokusirajDalje(1);
            }
        }
    };
    
    ShortcutListener skDownListener = new ShortcutListener("Down", ShortcutAction.KeyCode.ARROW_DOWN, null){

        @Override
        public void handleAction(Object sender, Object target) {

            if ((target instanceof TextField) || (target instanceof PasswordField) || (target instanceof Button)) {
                FokusirajDalje(0);
            }
        }
    };
    
    private void FokusirajDalje(int iSmjer) {
        
        //0 - Unaprijed
        //1 - Unazad
        
        int iZbrajatelj = 0;
        switch (iSmjer) {
            case 0: iZbrajatelj = 1;
                       break;
            case 1: iZbrajatelj = -1;
                    break;
        }
        
        int iTabIndex;
        
        Iterator<Component> iterate = MainLayout.iterator();
        while (iterate.hasNext()) {
            Component c = iterate.next();
            
            iTabIndex = -1;
            
            if (c instanceof TextField) {
                TextField textField = (TextField) c;
                iTabIndex = textField.getTabIndex();
            }
            
            if (c instanceof PasswordField) {
                PasswordField passwordField = (PasswordField) c;
                iTabIndex = passwordField.getTabIndex();
            }
            
            if (c instanceof Button) {
                Button button = (Button) c;
                iTabIndex = button.getTabIndex();
            }
            
            if (iTabIndex == _iFocusedTabIndex + iZbrajatelj) {
                if (c instanceof TextField) {
                    TextField textField = (TextField) c;
                    textField.focus();
                }
                
                if (c instanceof PasswordField) {
                    PasswordField passwordField = (PasswordField) c;
                    passwordField.focus();
                }
                
                if (c instanceof Button) {
                    Button button = (Button) c;
                    button.focus();
                }
                
                break;
            }
        }
    }
}

And this is from Main UI

package hr.pakom.android_maloprodaja;

import hr.pakom.android_maloprodaja.Sifrarnik_Porezi.UpitBrisiListener;

import java.text.DecimalFormatSymbols;
import java.util.Locale;

import javax.servlet.annotation.WebServlet;

import com.vaadin.annotations.Theme;
import com.vaadin.annotations.VaadinServletConfiguration;
import com.vaadin.server.VaadinRequest;
import com.vaadin.server.VaadinServlet;
import com.vaadin.ui.Button;
import com.vaadin.ui.Label;
import com.vaadin.ui.TextField;
import com.vaadin.ui.UI;
import com.vaadin.ui.VerticalLayout;
import com.vaadin.ui.Window;
import com.vaadin.ui.Window.CloseEvent;

@SuppressWarnings("serial")
@Theme("android_maloprodaja")
public class Android_MaloprodajaUI extends UI {
    
    GlobalneFunkcije global;
    DatabaseHelper db;
    
    @WebServlet(value = "/*", asyncSupported = true)
    @VaadinServletConfiguration(productionMode = false, ui = Android_MaloprodajaUI.class)
    public static class Servlet extends VaadinServlet {
    }

    @Override
    protected void init(VaadinRequest request) {
        
        global = GlobalneFunkcije.getInstance();
        
        db = new DatabaseHelper();
        
        Login LoginSub = new Login();
        LoginSub.addCloseListener(new LoginSubCloseListener());
        UI.getCurrent().addWindow(LoginSub);
        
        
        /*final VerticalLayout layout = new VerticalLayout();
        layout.setMargin(true);
        setContent(layout);

        Button button = new Button("Click Me");
        button.addClickListener(new Button.ClickListener() {
            public void buttonClick(ClickEvent event) {
                layout.addComponent(new Label("Thank you for clicking"));
            }
        });
        layout.addComponent(button);*/
        
        
    }
    
    public class LoginSubCloseListener implements Window.CloseListener {

        @Override
        public void windowClose(CloseEvent e) {
            
            if (global.bGlobPregled1) {
                Uredjaji UredjajiSub = new Uredjaji();
                UredjajiSub.setModal(true);
                UredjajiSub.addCloseListener(new UredjajiSubCloseListener());
                UI.getCurrent().addWindow(UredjajiSub);
            }
        }
    }
    
    public class UredjajiSubCloseListener implements Window.CloseListener {

        @Override
        public void windowClose(CloseEvent e) {
            
            if (global.bGlobPregled1) {
                Main mycomposite = new Main();
                setContent(mycomposite);
            }
        }
    }

}

 

Emmanuelle Victoria
6 years ago May 21, 2015 3:26pm

To isolate the issue can you try commenting line 60, DodajFocusListener();.

Zoro Zoro
6 years ago May 21, 2015 3:34pm

It is adding focus listener to all components
It is below in code

private void DodajFocusListener() {
        
        Iterator<Component> iterate = MainLayout.iterator();
        while (iterate.hasNext()) {
            Component c = iterate.next();
            
            if (c instanceof TextField) {
                TextField textField = (TextField) c;
                textField.addFocusListener(focusListener);
            }
            
            if (c instanceof PasswordField) {
                PasswordField passwordField = (PasswordField) c;
                passwordField.addFocusListener(focusListener);
            }
            
            if (c instanceof Button) {
                Button button = (Button) c;
                button.addFocusListener(focusListener);
            }
        }
    }

 

Emmanuelle Victoria
6 years ago May 21, 2015 3:37pm

I mean try commenting it or remove it. Then rerun and test the application if focus is now placed on the button.

Zoro Zoro
6 years ago May 21, 2015 3:58pm

Same thing...

Try this, try to press button "Nastavi (F11)" on my app
It pops up messagebox, this is this messagebox:
https://vaadin.com/directory#!addon/messagebox

Online demo from messagebox:
http://env-0190796.jelastic.servint.net/messagebox/

Press: 14: Button focused
there is focused Button Save

I am using the same code for my messagebox but button again loses focus

MessageBox mb = MessageBox.showPlain(Icon.INFO, "Poruka", sText, ButtonId.OK);
        mb.setButtonAlignment(Alignment.MIDDLE_CENTER);
        mb.getButton(ButtonId.OK).focus();
Heinz-Jürgen Lutsch
6 years ago May 22, 2015 2:34pm

Hi, which vaadin version do you use? There exists a bug in version 7.4.5 or higher regarding to focused components in windows.

https://dev.vaadin.com/ticket/17731

Zoro Zoro
6 years ago May 22, 2015 2:39pm

Heinz-Jürgen Lutsch - You are correct

I have used Vaadin 7.4.6
Changed version to 7.4.4 an now it is working

Thank you all