Login dialog (Ext GWT) : Dialog « GWT « Java
- Java
- GWT
- Dialog
Login dialog (Ext GWT)
/*
* Ext GWT - Ext for GWT
* Copyright(c) 2007-2009, Ext JS, LLC.
* licensing@extjs.com
*
* http://extjs.com/license
*/
package com.google.gwt.sample.hello.client;
import com.extjs.gxt.ui.client.Style.HorizontalAlignment;
import com.extjs.gxt.ui.client.event.ButtonEvent;
import com.extjs.gxt.ui.client.event.ComponentEvent;
import com.extjs.gxt.ui.client.event.KeyListener;
import com.extjs.gxt.ui.client.event.SelectionListener;
import com.extjs.gxt.ui.client.util.IconHelper;
import com.extjs.gxt.ui.client.widget.Dialog;
import com.extjs.gxt.ui.client.widget.Status;
import com.extjs.gxt.ui.client.widget.button.Button;
import com.extjs.gxt.ui.client.widget.form.TextField;
import com.extjs.gxt.ui.client.widget.layout.FormLayout;
import com.extjs.gxt.ui.client.widget.toolbar.FillToolItem;
import com.google.gwt.core.client.EntryPoint;
import com.google.gwt.user.client.Timer;
import com.google.gwt.user.client.ui.RootPanel;
public class Hello implements EntryPoint {
public void onModuleLoad() {
// RootPanel.get().add(new ReorderingTreeGridExample());
LoginDialog d = new LoginDialog();
d.show();
}
}
class LoginDialog extends Dialog {
protected TextField<String> userName;
protected TextField<String> password;
protected Button reset;
protected Button login;
protected Status status;
public LoginDialog() {
FormLayout layout = new FormLayout();
layout.setLabelWidth(90);
layout.setDefaultWidth(155);
setLayout(layout);
setButtonAlign(HorizontalAlignment.LEFT);
setButtons("");
setIcon(IconHelper.createStyle("user"));
setHeading("GXT Mail Demo Login");
setModal(true);
setBodyBorder(true);
setBodyStyle("padding: 8px;background: none");
setWidth(300);
setResizable(false);
KeyListener keyListener = new KeyListener() {
public void componentKeyUp(ComponentEvent event) {
validate();
}
};
userName = new TextField<String>();
userName.setMinLength(4);
userName.setFieldLabel("Username");
userName.addKeyListener(keyListener);
add(userName);
password = new TextField<String>();
password.setMinLength(4);
password.setPassword(true);
password.setFieldLabel("Password");
password.addKeyListener(keyListener);
add(password);
setFocusWidget(userName);
}
@Override
protected void createButtons() {
super.createButtons();
status = new Status();
status.setBusy("please wait...");
status.hide();
status.setAutoWidth(true);
getButtonBar().add(status);
getButtonBar().add(new FillToolItem());
reset = new Button("Reset");
reset.addSelectionListener(new SelectionListener<ButtonEvent>() {
public void componentSelected(ButtonEvent ce) {
userName.reset();
password.reset();
validate();
userName.focus();
}
});
login = new Button("Login");
login.disable();
login.addSelectionListener(new SelectionListener<ButtonEvent>() {
public void componentSelected(ButtonEvent ce) {
onSubmit();
}
});
addButton(reset);
addButton(login);
}
protected void onSubmit() {
status.show();
getButtonBar().disable();
Timer t = new Timer() {
@Override
public void run() {
LoginDialog.this.hide();
}
};
t.schedule(2000);
}
protected boolean hasValue(TextField<String> field) {
return field.getValue() != null && field.getValue().length() > 0;
}
protected void validate() {
login.setEnabled(hasValue(userName) && hasValue(password)
&& password.getValue().length() > 3);
}
}
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