edu.iastate.utils.net
Class Browser

java.lang.Object
  java.awt.Component
      java.awt.Container
          java.awt.Window
              java.awt.Frame
                  javax.swing.JFrame
                      edu.iastate.utils.net.Browser

All Implemented Interfaces:

javax.accessibility.Accessible, java.awt.image.ImageObserver, java.awt.MenuContainer, javax.swing.RootPaneContainer, java.io.Serializable, javax.swing.WindowConstants

public class Browser

extends javax.swing.JFrame

Simple illustration of GUI construction for a rudimentary web-browser.

Illustrates Layouts, Buttons, Menus, and simple GUI construction. Exercises for the reader include making the buttons functional, adding bookmarks, and more. This can be done via extension or by modifying the existing class.

When creating a browser, client code should set the size of of the frame (note that Browser extends JFrame).

   Browser b = new Browser();
   b.setSize(400,400);
   b.setVisible(true);
 

Jie Bao Modified 2003-10-21

See Also:

Serialized Form

Nested Class Summary

private class

Browser.LinkFollower Inner class to deal with link-clicks and mouse-overs

Nested classes inherited from class javax.swing.JFrame

javax.swing.JFrame.AccessibleJFrame

Nested classes inherited from class java.awt.Frame

java.awt.Frame.AccessibleAWTFrame

Nested classes inherited from class java.awt.Window

java.awt.Window.AccessibleAWTWindow

Nested classes inherited from class java.awt.Container

java.awt.Container.AccessibleAWTContainer

Nested classes inherited from class java.awt.Component

java.awt.Component.AccessibleAWTComponent, java.awt.Component.BltBufferStrategy, java.awt.Component.FlipBufferStrategy

Field Summary

private javax.swing.JEditorPane	myEditor
private javax.swing.JButton	myGoButton
private java.lang.String	myHome
private javax.swing.JLabel	myNextURL
private javax.swing.JTextField	myURLDisplay

Fields inherited from class javax.swing.JFrame

accessibleContext, EXIT_ON_CLOSE, rootPane, rootPaneCheckingEnabled

Fields inherited from class java.awt.Frame

CROSSHAIR_CURSOR, DEFAULT_CURSOR, E_RESIZE_CURSOR, HAND_CURSOR, ICONIFIED, MAXIMIZED_BOTH, MAXIMIZED_HORIZ, MAXIMIZED_VERT, MOVE_CURSOR, N_RESIZE_CURSOR, NE_RESIZE_CURSOR, NORMAL, NW_RESIZE_CURSOR, S_RESIZE_CURSOR, SE_RESIZE_CURSOR, SW_RESIZE_CURSOR, TEXT_CURSOR, W_RESIZE_CURSOR, WAIT_CURSOR

Fields inherited from class java.awt.Window

Fields inherited from class java.awt.Container

Fields inherited from class java.awt.Component

BOTTOM_ALIGNMENT, CENTER_ALIGNMENT, LEFT_ALIGNMENT, RIGHT_ALIGNMENT, TOP_ALIGNMENT

Fields inherited from interface javax.swing.WindowConstants

DISPOSE_ON_CLOSE, DO_NOTHING_ON_CLOSE, HIDE_ON_CLOSE

Fields inherited from interface java.awt.image.ImageObserver

ABORT, ALLBITS, ERROR, FRAMEBITS, HEIGHT, PROPERTIES, SOMEBITS, WIDTH

Constructor Summary

Browser()
Construct the web browser, calling code should set size of frame.

Browser(java.lang.String url)

Method Summary

private void	initGui() make all UI components, lay them out, ready to use
static void	main(java.lang.String[] args) opens a new browser window
private javax.swing.JPanel	makeBottomPanel() Make the panel where "would-be" clicked URL is displayed and the
private javax.swing.JPanel	makeTopPanel() Make user-entered URL/text field and back/next/home/go buttons
static void	openInWindowsDefaultBrowser(java.lang.String pageURL) Open a web page in windows default browser
private void	showNextURL(java.lang.String s) Show where link would take us if clicked
void	showPage(java.lang.String url) displays the url the user enters and echo the url in the textfield (even if it came from there!)

Methods inherited from class javax.swing.JFrame

addImpl, createRootPane, frameInit, getAccessibleContext, getContentPane, getDefaultCloseOperation, getGlassPane, getJMenuBar, getLayeredPane, getRootPane, isDefaultLookAndFeelDecorated, isRootPaneCheckingEnabled, paramString, processWindowEvent, remove, setContentPane, setDefaultCloseOperation, setDefaultLookAndFeelDecorated, setGlassPane, setJMenuBar, setLayeredPane, setLayout, setRootPane, setRootPaneCheckingEnabled, update

Methods inherited from class java.awt.Frame

addNotify, finalize, getCursorType, getExtendedState, getFrames, getIconImage, getMaximizedBounds, getMenuBar, getState, getTitle, isResizable, isUndecorated, remove, removeNotify, setCursor, setExtendedState, setIconImage, setMaximizedBounds, setMenuBar, setResizable, setState, setTitle, setUndecorated

Methods inherited from class java.awt.Window

addPropertyChangeListener, addPropertyChangeListener, addWindowFocusListener, addWindowListener, addWindowStateListener, applyResourceBundle, applyResourceBundle, createBufferStrategy, createBufferStrategy, dispose, getBufferStrategy, getFocusableWindowState, getFocusCycleRootAncestor, getFocusOwner, getFocusTraversalKeys, getGraphicsConfiguration, getInputContext, getListeners, getLocale, getMostRecentFocusOwner, getOwnedWindows, getOwner, getToolkit, getWarningString, getWindowFocusListeners, getWindowListeners, getWindowStateListeners, hide, isActive, isFocusableWindow, isFocusCycleRoot, isFocused, isShowing, pack, postEvent, processEvent, processWindowFocusEvent, processWindowStateEvent, removeWindowFocusListener, removeWindowListener, removeWindowStateListener, setCursor, setFocusableWindowState, setFocusCycleRoot, setLocationRelativeTo, show, toBack, toFront

Methods inherited from class java.awt.Container

add, add, add, add, add, addContainerListener, applyComponentOrientation, areFocusTraversalKeysSet, countComponents, deliverEvent, doLayout, findComponentAt, findComponentAt, getAlignmentX, getAlignmentY, getComponent, getComponentAt, getComponentAt, getComponentCount, getComponents, getContainerListeners, getFocusTraversalPolicy, getInsets, getLayout, getMaximumSize, getMinimumSize, getPreferredSize, insets, invalidate, isAncestorOf, isFocusCycleRoot, isFocusTraversalPolicySet, layout, list, list, locate, minimumSize, paint, paintComponents, preferredSize, print, printComponents, processContainerEvent, remove, removeAll, removeContainerListener, setFocusTraversalKeys, setFocusTraversalPolicy, setFont, transferFocusBackward, transferFocusDownCycle, validate, validateTree

Methods inherited from class java.awt.Component

action, add, addComponentListener, addFocusListener, addHierarchyBoundsListener, addHierarchyListener, addInputMethodListener, addKeyListener, addMouseListener, addMouseMotionListener, addMouseWheelListener, bounds, checkImage, checkImage, coalesceEvents, contains, contains, createImage, createImage, createVolatileImage, createVolatileImage, disable, disableEvents, dispatchEvent, enable, enable, enableEvents, enableInputMethods, firePropertyChange, firePropertyChange, firePropertyChange, getBackground, getBounds, getBounds, getColorModel, getComponentListeners, getComponentOrientation, getCursor, getDropTarget, getFocusListeners, getFocusTraversalKeysEnabled, getFont, getFontMetrics, getForeground, getGraphics, getHeight, getHierarchyBoundsListeners, getHierarchyListeners, getIgnoreRepaint, getInputMethodListeners, getInputMethodRequests, getKeyListeners, getLocation, getLocation, getLocationOnScreen, getMouseListeners, getMouseMotionListeners, getMouseWheelListeners, getName, getParent, getPeer, getPropertyChangeListeners, getPropertyChangeListeners, getSize, getSize, getTreeLock, getWidth, getX, getY, gotFocus, handleEvent, hasFocus, imageUpdate, inside, isBackgroundSet, isCursorSet, isDisplayable, isDoubleBuffered, isEnabled, isFocusable, isFocusOwner, isFocusTraversable, isFontSet, isForegroundSet, isLightweight, isOpaque, isValid, isVisible, keyDown, keyUp, list, list, list, location, lostFocus, mouseDown, mouseDrag, mouseEnter, mouseExit, mouseMove, mouseUp, move, nextFocus, paintAll, prepareImage, prepareImage, printAll, processComponentEvent, processFocusEvent, processHierarchyBoundsEvent, processHierarchyEvent, processInputMethodEvent, processKeyEvent, processMouseEvent, processMouseMotionEvent, processMouseWheelEvent, removeComponentListener, removeFocusListener, removeHierarchyBoundsListener, removeHierarchyListener, removeInputMethodListener, removeKeyListener, removeMouseListener, removeMouseMotionListener, removeMouseWheelListener, removePropertyChangeListener, removePropertyChangeListener, repaint, repaint, repaint, repaint, requestFocus, requestFocus, requestFocusInWindow, requestFocusInWindow, reshape, resize, resize, setBackground, setBounds, setBounds, setComponentOrientation, setDropTarget, setEnabled, setFocusable, setFocusTraversalKeysEnabled, setForeground, setIgnoreRepaint, setLocale, setLocation, setLocation, setName, setSize, setSize, setVisible, show, size, toString, transferFocus, transferFocusUpCycle

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.awt.MenuContainer

getFont, postEvent

Field Detail

myEditor

private javax.swing.JEditorPane myEditor

myNextURL

private javax.swing.JLabel myNextURL

myURLDisplay

private javax.swing.JTextField myURLDisplay

myGoButton

private javax.swing.JButton myGoButton

myHome

private java.lang.String myHome

Constructor Detail

Browser

public Browser()

Construct the web browser, calling code should set size of frame.

Browser

public Browser(java.lang.String url)

Method Detail

makeTopPanel

private javax.swing.JPanel makeTopPanel()

Make user-entered URL/text field and back/next/home/go buttons

Returns:

returns JPanel containing buttons

makeBottomPanel

private javax.swing.JPanel makeBottomPanel()

Make the panel where "would-be" clicked URL is displayed and the

Returns:

returns a JPanel containing the HTML window and the panel at the bottom that lists the URL of a rolled-over link

initGui

private void initGui()

make all UI components, lay them out, ready to use

showPage

public void showPage(java.lang.String url)

displays the url the user enters and echo the url in the textfield (even if it came from there!) the echo makes it so link-clicking shows the URL

showNextURL

private void showNextURL(java.lang.String s)

Show where link would take us if clicked

Parameters:

s - URL of link

openInWindowsDefaultBrowser

public static void openInWindowsDefaultBrowser(java.lang.String pageURL)

Open a web page in windows default browser

Parameters:

pageURL - String

Since:

2005-03-14

main

public static void main(java.lang.String[] args)

opens a new browser window