org.xhtmlrenderer.demo.browser

Class PanelManager

java.lang.Object

org.xhtmlrenderer.swing.DelegatingUserAgent

org.xhtmlrenderer.demo.browser.PanelManager

All Implemented Interfaces:

DocumentListener, UserAgentCallback

public class PanelManager
extends DelegatingUserAgent

PanelManager is a UserAgentCallback responsible for the Browser's resource (XML, image, CSS) lookup. Most of the power is in the NaiveUserAgent; the PanelManager adds support for the demo:, file: and demoNav: protocols, and keeps track of the history of visited links. There is always a "current" link, and one can use the getBack(), getForward() and hasForward() methods to navigate within the history. As a NaiveUserAgent, the PanelManager is also a DocumentListener, but must be added to the source of document events (like a RootPanel subclass).

Constructor Summary

Constructors

Constructor and Description
PanelManager()

Method Summary

Modifier and Type	Method and Description
String	getBack() Returns the "previous" URI in the history of visiting URIs.
String	getForward() Returns the "next" URI in the history of visiting URIs.
XMLResource	getXMLResource(String uri)
boolean	hasBack() Returns true if there are visited URIs in history "before" the pointer the current URI.
boolean	hasForward() Returns true if there are visited URIs in history "after" the pointer the current URI.
boolean	isVisited(String uri) Returns true if the link has been visited by the user in this session.
String	resolveURI(String uri) .
void	setBaseURL(String url)

Methods inherited from class org.xhtmlrenderer.swing.DelegatingUserAgent

clearImageCache, documentLoaded, documentStarted, getBaseURL, getBinaryResource, getCSSResource, getImageResource, onLayoutException, onRenderException, resolveAndOpenStream, setImageResourceLoader, setRepaintListener, shrinkImageCache

Methods inherited from class java.lang.Object

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

Constructor Detail

PanelManager

public PanelManager()

Method Detail

resolveURI

public String resolveURI(String uri)

.

Specified by:

resolveURI in interface UserAgentCallback

Overrides:

resolveURI in class DelegatingUserAgent

getXMLResource

public XMLResource getXMLResource(String uri)

Specified by:

getXMLResource in interface UserAgentCallback

Overrides:

getXMLResource in class DelegatingUserAgent

isVisited

public boolean isVisited(String uri)

Returns true if the link has been visited by the user in this session. Visit tracking is not persisted.

Specified by:

isVisited in interface UserAgentCallback

Overrides:

isVisited in class DelegatingUserAgent

setBaseURL

public void setBaseURL(String url)

Specified by:

setBaseURL in interface UserAgentCallback

Overrides:

setBaseURL in class DelegatingUserAgent

getForward

public String getForward()

Returns the "next" URI in the history of visiting URIs. Advances the URI tracking (as if browser "forward" was used).

getBack

public String getBack()

Returns the "previous" URI in the history of visiting URIs. Moves the URI tracking back (as if browser "back" was used).

hasForward

public boolean hasForward()

Returns true if there are visited URIs in history "after" the pointer the current URI. This would be the case if multiple URIs were visited and the getBack() had been called at least once.

hasBack

public boolean hasBack()

Returns true if there are visited URIs in history "before" the pointer the current URI. This would be the case if multiple URIs were visited and the current URI pointer was not at the beginning of the visited URI list.