Created
April 29, 2018 13:36
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class MyLoginModel implements LoginModel { | |
String user; | |
@Override | |
public String getUser() { | |
return user; | |
} | |
@Override | |
public void setUser(String user) { | |
this.user = user; | |
} | |
} | |
interface LoginView { | |
LoginPresenter getPresenter(); | |
void setPresenter(LoginPresenter loginPresenter); | |
void updateModelFromView(); | |
void updateViewFromModel(); | |
void open(); | |
void close(); | |
void userRejected(); | |
} | |
class MyLoginView extends javax.swing.JFrame implements LoginView { | |
private LoginPresenter loginPresenter; | |
/** | |
* Creates new form MyLoginView | |
*/ | |
public MyLoginView() { | |
initComponents(); | |
} | |
@SuppressWarnings("unchecked") | |
private void initComponents() { | |
java.awt.GridBagConstraints gridBagConstraints; | |
jLabel1 = new javax.swing.JLabel(); | |
jTextField1 = new javax.swing.JTextField(); | |
jLabel2 = new javax.swing.JLabel(); | |
jButton1 = new javax.swing.JButton(); | |
setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE); | |
setBounds(new java.awt.Rectangle(0, 0, 0, 0)); | |
java.awt.GridBagLayout layout = new java.awt.GridBagLayout(); | |
layout.columnWidths = new int[] {0, 7, 0}; | |
layout.rowHeights = new int[] {0, 7, 0, 7, 0}; | |
getContentPane().setLayout(layout); | |
jLabel1.setFont(new java.awt.Font("Tahoma", 1, 11)); // NOI18N | |
jLabel1.setText("Welcome"); | |
gridBagConstraints = new java.awt.GridBagConstraints(); | |
gridBagConstraints.gridx = 0; | |
gridBagConstraints.gridy = 0; | |
gridBagConstraints.gridwidth = 3; | |
getContentPane().add(jLabel1, gridBagConstraints); | |
jTextField1.setColumns(13); | |
gridBagConstraints = new java.awt.GridBagConstraints(); | |
gridBagConstraints.gridx = 2; | |
gridBagConstraints.gridy = 2; | |
gridBagConstraints.fill = java.awt.GridBagConstraints.HORIZONTAL; | |
getContentPane().add(jTextField1, gridBagConstraints); | |
jLabel2.setText("User"); | |
gridBagConstraints = new java.awt.GridBagConstraints(); | |
gridBagConstraints.gridx = 0; | |
gridBagConstraints.gridy = 2; | |
getContentPane().add(jLabel2, gridBagConstraints); | |
jButton1.setText("Login"); | |
jButton1.addActionListener(new java.awt.event.ActionListener() { | |
public void actionPerformed(java.awt.event.ActionEvent evt) { | |
jButton1ActionPerformed(evt); | |
} | |
}); | |
gridBagConstraints = new java.awt.GridBagConstraints(); | |
gridBagConstraints.gridx = 2; | |
gridBagConstraints.gridy = 4; | |
getContentPane().add(jButton1, gridBagConstraints); | |
pack(); | |
} | |
private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) { | |
getPresenter().login(); | |
} | |
private javax.swing.JButton jButton1; | |
private javax.swing.JLabel jLabel1; | |
private javax.swing.JLabel jLabel2; | |
private javax.swing.JTextField jTextField1; | |
@Override | |
public void updateModelFromView() { | |
getPresenter().getModel().setUser(jTextField1.getText()); | |
} | |
@Override | |
public void updateViewFromModel() { | |
jTextField1.setText(getPresenter().getModel().getUser()); | |
} | |
@Override | |
public void open() { | |
setVisible(true); | |
jTextField1.selectAll(); | |
jTextField1.requestFocus(); | |
} | |
@Override | |
public void close() { | |
dispose(); | |
} | |
@Override | |
public void userRejected() { | |
jLabel1.setText("Try again!"); | |
jTextField1.selectAll(); | |
jTextField1.requestFocus(); | |
} | |
@Override | |
public LoginPresenter getPresenter() { | |
return loginPresenter; | |
} | |
@Override | |
public void setPresenter(LoginPresenter loginPresenter) { | |
this.loginPresenter = loginPresenter; | |
} | |
} | |
interface LoginPresenter { | |
LoginModel getModel(); | |
void setModel(LoginModel loginModel); | |
LoginView getView(); | |
void setView(LoginView loginView); | |
void setOnLogin(Runnable onLogin); | |
void run(); | |
void login(); | |
} | |
class MyLoginPresenter implements LoginPresenter { | |
LoginModel loginModel; | |
LoginView loginView; | |
private Runnable onLogin; | |
@Override | |
public LoginModel getModel() { | |
return loginModel; | |
} | |
@Override | |
public void setModel(LoginModel loginModel) { | |
this.loginModel = loginModel; | |
} | |
@Override | |
public LoginView getView() { | |
return loginView; | |
} | |
@Override | |
public void setView(LoginView loginView) { | |
this.loginView = loginView; | |
} | |
@Override | |
public void setOnLogin(Runnable onLogin) { | |
this.onLogin = onLogin; | |
} | |
@Override | |
public void run() { | |
loginModel.setUser("previousUser"); | |
loginView.setPresenter(this); | |
loginView.updateViewFromModel(); | |
loginView.open(); | |
} | |
@Override | |
public void login() { | |
loginView.updateModelFromView(); | |
if (loginModel.getUser().equalsIgnoreCase("root")) { | |
loginView.close(); | |
loginView.setPresenter(null);// for memory sanity. | |
onLogin.run(); | |
} else { | |
loginView.userRejected(); | |
} | |
} | |
} | |
public class Application { | |
/** | |
* @param args the command line arguments | |
*/ | |
public static void main(String args[]) { | |
java.awt.EventQueue.invokeLater(new Runnable() { | |
public void run() { | |
LoginModel loginModel = new MyLoginModel(); | |
LoginPresenter loginPresenter = new MyLoginPresenter(); | |
loginPresenter.setModel(loginModel); | |
LoginView loginView = new MyLoginView(); | |
loginPresenter.setView(loginView); | |
loginPresenter.setOnLogin(new Runnable() { | |
@Override | |
public void run() { | |
JOptionPane.showMessageDialog(null, "Welcome user!"); | |
} | |
}); | |
loginPresenter.run(); | |
} | |
}); | |
} | |
} |
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