GWTApplication.client
Class LoginPanel

java.lang.Object
  com.google.gwt.user.client.ui.UIObject
      com.google.gwt.user.client.ui.Widget
          com.google.gwt.user.client.ui.Composite
              GWTApplication.client.FaultDBForm
                  GWTApplication.client.LoginPanel

All Implemented Interfaces:

com.google.gwt.user.client.EventListener, com.google.gwt.user.client.ui.ClickListener, com.google.gwt.user.client.ui.KeyboardListener

 class LoginPanel
extends FaultDBForm
implements com.google.gwt.user.client.ui.ClickListener, com.google.gwt.user.client.ui.KeyboardListener

This class will be used to permit the user to authenticate himself with the new system. It presents an interface which the user can use to input the details of his userid and password. The credentials will then be authenticated by the servlet and his priviledges will be returned.

Version:

$Id: LoginPanel.java,v 1.10 2008/01/15 11:08:16 cb Exp $

Author:

Craige Bevil

Field Summary

private FaultUpdateMonitor	faultUpdateMonitor Used to check the database intermittingly and report back to listeners which faults they are displaying have changed so that they may update their view accordingly.
private com.google.gwt.user.client.ui.Button	LoginButton This is the button which the user will use to log onto the system.
(package private) FDBLoginListener	LoginListener This is an object which implements the FDBLoginListener interface which will be informed when the user has authenticated himself with the system and what the level of the priviledge is
private com.google.gwt.user.client.ui.Button	LoginNoIdButton The user can press this button to log into the system if he does not have a user id or password
private com.google.gwt.user.client.ui.FlexTable	LoginTable This will contain all of the fields in which the user will enter his log on credentials
private com.google.gwt.user.client.ui.DockPanel	MainPanel This is the dock panel which will be used for holding all of elements in the display
(package private) com.google.gwt.user.client.ui.PasswordTextBox	PasswordWidget This is the text box widget which the user will use to enter his password
private com.google.gwt.user.client.ui.CheckBox	StoreLoginCredentialsCheckBox Widget which is used to allow the user to store the details of his logon id as a cookie on his machine
private FaultServiceAsync	svc This is the service which will be used to access the database.
private AuthenticationDetails	UserAuthentication This is the authentication data which is associated with the user which will be returned by the sevlet once the user has authenticated himself.
(package private) com.google.gwt.user.client.ui.TextBox	UserIdentifierWidget This is the text box widget which the user will use to enter his user name
private com.google.gwt.user.client.ui.VerticalPanel	UserLoginPanel This is the main panel into which we will pack everything

Fields inherited from class GWTApplication.client.FaultDBForm

busyIndicator, internationalizationConstants, NOLENGTHCHECK, PrinterList

Fields inherited from interface com.google.gwt.user.client.ui.KeyboardListener

KEY_ALT, KEY_BACKSPACE, KEY_CTRL, KEY_DELETE, KEY_DOWN, KEY_END, KEY_ENTER, KEY_ESCAPE, KEY_HOME, KEY_LEFT, KEY_PAGEDOWN, KEY_PAGEUP, KEY_RIGHT, KEY_SHIFT, KEY_TAB, KEY_UP, MODIFIER_ALT, MODIFIER_CTRL, MODIFIER_META, MODIFIER_SHIFT

Constructor Summary

LoginPanel(FaultServiceAsync svc, FDBLoginListener LoginListener)
Constructor which will create a panel into which the user enter the details of his username and password.

Method Summary

void	onClick(com.google.gwt.user.client.ui.Widget sender) Implements the interface which is associated with the ClickListener interface and is called when the user presses buttons in the Login panel interface
void	onKeyDown(com.google.gwt.user.client.ui.Widget sender, char keyCode, int modifiers) An obligation to the KeyboardListener interface.
void	onKeyPress(com.google.gwt.user.client.ui.Widget sender, char keyCode, int modifiers) Called when the user presses the return key in the login panel.
void	onKeyUp(com.google.gwt.user.client.ui.Widget sender, char keyCode, int modifiers) An obligation to the KeyboardListener interface.
private void	resetUserCredentialFields()

Methods inherited from class GWTApplication.client.FaultDBForm

createEmailLink, fillListBoxWithCurrentInstruments, fillListBoxWithDutyTechnicians, fillListBoxWithFaultType, fillListBoxWithInstruments, fillListBoxWithSeverity, fillListBoxWithSites, fillListBoxWithStaffMembers, fillListBoxWithStates, fillListBoxWithSupportAstronomers, fillListBoxWithSystems, fillListBoxWithTelescopeOperators, getCurrentDate, getCurrentTime, getFullUserNameFromEmailAddress, selectDefaultListOption, setSelectedItemInListbox, stringContainsText, verifyDateFormat, verifyDateNotInFuture, verifyText, verifyTimeFormat

Methods inherited from class com.google.gwt.user.client.ui.Composite

getElement, getWidget, initWidget, isAttached, onAttach, onDetach, setWidget

Methods inherited from class com.google.gwt.user.client.ui.Widget

doAttachChildren, doDetachChildren, getParent, onBrowserEvent, onLoad, onUnload, removeFromParent, setElement

Methods inherited from class com.google.gwt.user.client.ui.UIObject

addStyleDependentName, addStyleName, getAbsoluteLeft, getAbsoluteTop, getOffsetHeight, getOffsetWidth, getStyleElement, getStyleName, getStyleName, getStylePrimaryName, getStylePrimaryName, getTitle, isVisible, isVisible, removeStyleDependentName, removeStyleName, setHeight, setPixelSize, setSize, setStyleName, setStyleName, setStyleName, setStylePrimaryName, setStylePrimaryName, setTitle, setVisible, setVisible, setWidth, sinkEvents, toString, unsinkEvents

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

StoreLoginCredentialsCheckBox

private com.google.gwt.user.client.ui.CheckBox StoreLoginCredentialsCheckBox

Widget which is used to allow the user to store the details of his logon id as a cookie on his machine

UserAuthentication

private AuthenticationDetails UserAuthentication

This is the authentication data which is associated with the user which will be returned by the sevlet once the user has authenticated himself.

LoginButton

private final com.google.gwt.user.client.ui.Button LoginButton

This is the button which the user will use to log onto the system.

LoginNoIdButton

private final com.google.gwt.user.client.ui.Button LoginNoIdButton

The user can press this button to log into the system if he does not have a user id or password

svc

private final FaultServiceAsync svc

This is the service which will be used to access the database.

LoginTable

private final com.google.gwt.user.client.ui.FlexTable LoginTable

This will contain all of the fields in which the user will enter his log on credentials

UserLoginPanel

private final com.google.gwt.user.client.ui.VerticalPanel UserLoginPanel

This is the main panel into which we will pack everything

MainPanel

private final com.google.gwt.user.client.ui.DockPanel MainPanel

This is the dock panel which will be used for holding all of elements in the display

UserIdentifierWidget

com.google.gwt.user.client.ui.TextBox UserIdentifierWidget

This is the text box widget which the user will use to enter his user name

PasswordWidget

com.google.gwt.user.client.ui.PasswordTextBox PasswordWidget

This is the text box widget which the user will use to enter his password

LoginListener

FDBLoginListener LoginListener

This is an object which implements the FDBLoginListener interface which will be informed when the user has authenticated himself with the system and what the level of the priviledge is

faultUpdateMonitor

private FaultUpdateMonitor faultUpdateMonitor

Used to check the database intermittingly and report back to listeners which faults they are displaying have changed so that they may update their view accordingly.

Constructor Detail

LoginPanel

LoginPanel(FaultServiceAsync svc,
           FDBLoginListener LoginListener)

Constructor which will create a panel into which the user enter the details of his username and password.

Method Detail

resetUserCredentialFields

private void resetUserCredentialFields()

onClick

public void onClick(com.google.gwt.user.client.ui.Widget sender)

Implements the interface which is associated with the ClickListener interface and is called when the user presses buttons in the Login panel interface

Specified by:

onClick in interface com.google.gwt.user.client.ui.ClickListener

Parameters:

sender - The widget that was clicked.

onKeyDown

public void onKeyDown(com.google.gwt.user.client.ui.Widget sender,
                      char keyCode,
                      int modifiers)

An obligation to the KeyboardListener interface. Not Used.

Specified by:

onKeyDown in interface com.google.gwt.user.client.ui.KeyboardListener

onKeyPress

public void onKeyPress(com.google.gwt.user.client.ui.Widget sender,
                       char keyCode,
                       int modifiers)

Called when the user presses the return key in the login panel. We automatically attempt to log the user on if he presses the return key

Specified by:

onKeyPress in interface com.google.gwt.user.client.ui.KeyboardListener

onKeyUp

public void onKeyUp(com.google.gwt.user.client.ui.Widget sender,
                    char keyCode,
                    int modifiers)

An obligation to the KeyboardListener interface. Not Used.

Specified by:

onKeyUp in interface com.google.gwt.user.client.ui.KeyboardListener