Package org.eclipse.swt.browser

Class Browser

java.lang.Object

org.eclipse.swt.widgets.Widget

org.eclipse.swt.widgets.Control

org.eclipse.swt.widgets.Scrollable

org.eclipse.swt.widgets.Composite

org.eclipse.swt.browser.Browser

All Implemented Interfaces:

Drawable

public class Browser
extends Composite

Instances of this class implement the browser user interface metaphor. It allows the user to visualize and navigate through HTML documents.

Note that although this class is a subclass of Composite, it does not make sense to set a layout on it.

Styles:

NONE, WEBKIT

Events:

CloseWindowListener, LocationListener, OpenWindowListener, ProgressListener, StatusTextListener, TitleListener, VisibilityWindowListener

IMPORTANT: This class is not intended to be subclassed.

Since:

3.0

See Also:

• Browser snippets
• SWT Examples: ControlExample, BrowserExample
• Sample code and further information

Restriction:

This class is not intended to be subclassed by clients.

Field Summary

Fields inherited from class org.eclipse.swt.widgets.Control

handle

Fields inherited from class org.eclipse.swt.widgets.Widget

nativeZoom

Constructor Summary

Constructors

Constructor	Description
Browser(Composite parent, int style)	Constructs a new instance of this class given its parent and a style value describing its behavior and appearance.

Method Summary

Modifier and Type	Method	Description
void	addAuthenticationListener(AuthenticationListener listener)	Adds the listener to the collection of listeners who will be notified when authentication is required.
void	addCloseWindowListener(CloseWindowListener listener)	Adds the listener to the collection of listeners who will be notified when the window hosting the receiver should be closed.
void	addLocationListener(LocationListener listener)	Adds the listener to the collection of listeners who will be notified when the current location has changed or is about to change.
void	addOpenWindowListener(OpenWindowListener listener)	Adds the listener to the collection of listeners who will be notified when a new window needs to be created.
void	addProgressListener(ProgressListener listener)	Adds the listener to the collection of listeners who will be notified when a progress is made during the loading of the current URL or when the loading of the current URL has been completed.
void	addStatusTextListener(StatusTextListener listener)	Adds the listener to the collection of listeners who will be notified when the status text is changed.
void	addTitleListener(TitleListener listener)	Adds the listener to the collection of listeners who will be notified when the title of the current document is available or has changed.
void	addVisibilityWindowListener(VisibilityWindowListener listener)	Adds the listener to the collection of listeners who will be notified when a window hosting the receiver needs to be displayed or hidden.
boolean	back()	Navigate to the previous session history item.
protected void	checkSubclass()	Checks that this class can be subclassed.
protected void	checkWidget()	Throws an SWTException if the receiver can not be accessed by the caller.
static void	clearSessions()	Clears all session cookies from all current Browser instances.
boolean	close()	Attempts to dispose the receiver, but allows the dispose to be vetoed by the user in response to an onbeforeunload listener in the Browser's current page.
Object	evaluate(String script)	Returns the result, if any, of executing the specified script.
Object	evaluate(String script, boolean trusted)	Returns the result, if any, of executing the specified script.
boolean	execute(String script)	Executes the specified script.
boolean	forward()	Navigate to the next session history item.
String	getBrowserType()	Returns the type of native browser being used by this instance.
static String	getCookie(String name, String url)	Returns the value of a cookie that is associated with a URL.
boolean	getJavascriptEnabled()	Returns true if javascript will be allowed to run in pages subsequently viewed in the receiver, and false otherwise.
int	getStyle()	Returns the receiver's style information.
String	getText()	Returns a string with HTML that represents the content of the current page.
String	getUrl()	Returns the current URL.
Object	getWebBrowser()	Deprecated. SWT.MOZILLA is deprecated and XULRunner as a browser renderer is no longer supported.
boolean	isBackEnabled()	Returns true if the receiver can navigate to the previous session history item, and false otherwise.
boolean	isFocusControl()	Returns true if the receiver has the user-interface focus, and false otherwise.
boolean	isForwardEnabled()	Returns true if the receiver can navigate to the next session history item, and false otherwise.
void	refresh()	Refresh the current page.
void	removeAuthenticationListener(AuthenticationListener listener)	Removes the listener from the collection of listeners who will be notified when authentication is required.
void	removeCloseWindowListener(CloseWindowListener listener)	Removes the listener from the collection of listeners who will be notified when the window hosting the receiver should be closed.
void	removeLocationListener(LocationListener listener)	Removes the listener from the collection of listeners who will be notified when the current location is changed or about to be changed.
void	removeOpenWindowListener(OpenWindowListener listener)	Removes the listener from the collection of listeners who will be notified when a new window needs to be created.
void	removeProgressListener(ProgressListener listener)	Removes the listener from the collection of listeners who will be notified when a progress is made during the loading of the current URL or when the loading of the current URL has been completed.
void	removeStatusTextListener(StatusTextListener listener)	Removes the listener from the collection of listeners who will be notified when the status text is changed.
void	removeTitleListener(TitleListener listener)	Removes the listener from the collection of listeners who will be notified when the title of the current document is available or has changed.
void	removeVisibilityWindowListener(VisibilityWindowListener listener)	Removes the listener from the collection of listeners who will be notified when a window hosting the receiver needs to be displayed or hidden.
static boolean	setCookie(String value, String url)	Sets a cookie on a URL.
void	setJavascriptEnabled(boolean enabled)	Sets whether javascript will be allowed to run in pages subsequently viewed in the receiver.
boolean	setText(String html)	Renders a string containing HTML.
boolean	setText(String html, boolean trusted)	Renders a string containing HTML.
boolean	setUrl(String url)	Begins loading a URL.
boolean	setUrl(String url, String postData, String[] headers)	Begins loading a URL.
void	stop()	Stop any loading and rendering activity.

Methods inherited from class org.eclipse.swt.widgets.Composite

changed, drawBackground, getBackgroundMode, getChildren, getLayout, getLayoutDeferred, getTabList, isLayoutDeferred, layout, layout, layout, layout, layout, setBackgroundMode, setFocus, setLayout, setLayoutDeferred, setTabList, toString

Methods inherited from class org.eclipse.swt.widgets.Scrollable

computeTrim, getClientArea, getHorizontalBar, getScrollbarsMode, getVerticalBar, setScrollbarsMode

Methods inherited from class org.eclipse.swt.widgets.Control

addControlListener, addDragDetectListener, addFocusListener, addGestureListener, addHelpListener, addKeyListener, addMenuDetectListener, addMouseListener, addMouseMoveListener, addMouseTrackListener, addMouseWheelListener, addPaintListener, addTouchListener, addTraverseListener, computeSize, computeSize, dragDetect, dragDetect, forceFocus, getAccessible, getBackground, getBackgroundImage, getBorderWidth, getBounds, getCursor, getDragDetect, getEnabled, getFont, getForeground, getLayoutData, getLocation, getMenu, getMonitor, getOrientation, getParent, getRegion, getShell, getSize, getTextDirection, getToolTipText, getTouchEnabled, getVisible, internal_dispose_GC, internal_new_GC, isEnabled, isReparentable, isVisible, moveAbove, moveBelow, pack, pack, print, redraw, redraw, removeControlListener, removeDragDetectListener, removeFocusListener, removeGestureListener, removeHelpListener, removeKeyListener, removeMenuDetectListener, removeMouseListener, removeMouseMoveListener, removeMouseTrackListener, removeMouseWheelListener, removePaintListener, removeTouchListener, removeTraverseListener, requestLayout, setBackground, setBackgroundImage, setBounds, setBounds, setCapture, setCursor, setDragDetect, setEnabled, setFont, setForeground, setLayoutData, setLocation, setLocation, setMenu, setOrientation, setParent, setRedraw, setRegion, setSize, setSize, setTextDirection, setToolTipText, setTouchEnabled, setVisible, toControl, toControl, toDisplay, toDisplay, traverse, traverse, traverse, update

Methods inherited from class org.eclipse.swt.widgets.Widget

addDisposeListener, addListener, addTypedListener, dispose, getData, getData, getDisplay, getListeners, getTypedListeners, isAutoDirection, isDisposed, isListening, notifyListeners, removeDisposeListener, removeListener, removeListener, removeTypedListener, reskin, setData, setData

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.eclipse.swt.graphics.Drawable

isAutoScalable

Constructor Details

Browser

public Browser(Composite parent,
 int style)

Constructs a new instance of this class given its parent and a style value describing its behavior and appearance.

The style value is either one of the style constants defined in class SWT which is applicable to instances of this class, or must be built by bitwise OR'ing together (that is, using the int "|" operator) two or more of those SWT style constants. The class description lists the style constants that are applicable to the class. Style bits are also inherited from superclasses.

Parameters:

parent - a widget which will be the parent of the new instance (cannot be null)

style - the style of widget to construct

Throws:

IllegalArgumentException -

• ERROR_NULL_ARGUMENT - if the parent is null

SWTException -

• ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent

SWTError -

• ERROR_NO_HANDLES if a handle could not be obtained for browser creation

Since:

3.0

See Also:

• Widget.getStyle()

Method Details

checkWidget

protected void checkWidget()

Description copied from class: Widget

Throws an SWTException if the receiver can not be accessed by the caller. This may include both checks on the state of the receiver and more generally on the entire execution context. This method should be called by widget implementors to enforce the standard SWT invariants.

Currently, it is an error to invoke any method (other than isDisposed()) on a widget that has had its dispose() method called. It is also an error to call widget methods from any thread that is different from the thread that created the widget.

In future releases of SWT, there may be more or fewer error checks and exceptions may be thrown for different reasons.

Overrides:

checkWidget in class Widget

clearSessions

public static void clearSessions()

Clears all session cookies from all current Browser instances.

Since:

3.2

getCookie

public static String getCookie(String name,
 String url)

Returns the value of a cookie that is associated with a URL. Note that cookies are shared amongst all Browser instances.

Parameters:

name - the cookie name

url - the URL that the cookie is associated with

Returns:

the cookie value, or null if no such cookie exists

Throws:

IllegalArgumentException -

• ERROR_NULL_ARGUMENT - if the name is null
• ERROR_NULL_ARGUMENT - if the url is null

Since:

3.5

setCookie

public static boolean setCookie(String value,
 String url)

Sets a cookie on a URL. Note that cookies are shared amongst all Browser instances. The value parameter must be a cookie header string that complies with RFC 2109. The value is passed through to the native browser unchanged.

Example value strings: foo=bar (basic session cookie) foo=bar; path=/; domain=.eclipse.org (session cookie) foo=bar; expires=Tue, 01-Jan-2030 00:00:01 GMT (persistent cookie) foo=; expires=Thu, 01-Jan-1970 00:00:01 GMT (deletes cookie foo)

Parameters:

value - the cookie value

url - the URL to associate the cookie with

Returns:

true if the cookie was successfully set and false otherwise

Throws:

IllegalArgumentException -

• ERROR_NULL_ARGUMENT - if the value is null
• ERROR_NULL_ARGUMENT - if the url is null

Since:

3.5

addAuthenticationListener

public void addAuthenticationListener(AuthenticationListener listener)

Adds the listener to the collection of listeners who will be notified when authentication is required.

This notification occurs when a page requiring authentication is encountered.

Parameters:

listener - the listener which should be notified

Throws:

IllegalArgumentException -

• ERROR_NULL_ARGUMENT - if the listener is null

SWTException -

• ERROR_THREAD_INVALID_ACCESS when called from the wrong thread
• ERROR_WIDGET_DISPOSED when the widget has been disposed

Since:

3.5

addCloseWindowListener

public void addCloseWindowListener(CloseWindowListener listener)

Adds the listener to the collection of listeners who will be notified when the window hosting the receiver should be closed.

This notification occurs when a javascript command such as window.close gets executed by a Browser.

Parameters:

listener - the listener which should be notified

Throws:

IllegalArgumentException -

• ERROR_NULL_ARGUMENT - if the listener is null

SWTException -

• ERROR_THREAD_INVALID_ACCESS when called from the wrong thread
• ERROR_WIDGET_DISPOSED when the widget has been disposed

Since:

3.0

addLocationListener

public void addLocationListener(LocationListener listener)

Adds the listener to the collection of listeners who will be notified when the current location has changed or is about to change.

This notification typically occurs when the application navigates to a new location with setUrl(String) or when the user activates a hyperlink.

Parameters:

listener - the listener which should be notified

Throws:

IllegalArgumentException -

• ERROR_NULL_ARGUMENT - if the listener is null

SWTException -

• ERROR_THREAD_INVALID_ACCESS when called from the wrong thread
• ERROR_WIDGET_DISPOSED when the widget has been disposed

Since:

3.0

addOpenWindowListener

public void addOpenWindowListener(OpenWindowListener listener)

Adds the listener to the collection of listeners who will be notified when a new window needs to be created.

This notification occurs when a javascript command such as window.open gets executed by a Browser.

Parameters:

listener - the listener which should be notified

Throws:

IllegalArgumentException -

• ERROR_NULL_ARGUMENT - if the listener is null

SWTException -

• ERROR_THREAD_INVALID_ACCESS when called from the wrong thread
• ERROR_WIDGET_DISPOSED when the widget has been disposed

Since:

3.0

addProgressListener

public void addProgressListener(ProgressListener listener)

Adds the listener to the collection of listeners who will be notified when a progress is made during the loading of the current URL or when the loading of the current URL has been completed.

Parameters:

listener - the listener which should be notified

Throws:

IllegalArgumentException -

• ERROR_NULL_ARGUMENT - if the listener is null

SWTException -

• ERROR_THREAD_INVALID_ACCESS when called from the wrong thread
• ERROR_WIDGET_DISPOSED when the widget has been disposed

Since:

3.0

addStatusTextListener

public void addStatusTextListener(StatusTextListener listener)

Adds the listener to the collection of listeners who will be notified when the status text is changed.

The status text is typically displayed in the status bar of a browser application.

Parameters:

listener - the listener which should be notified

Throws:

IllegalArgumentException -

• ERROR_NULL_ARGUMENT - if the listener is null

SWTException -

• ERROR_THREAD_INVALID_ACCESS when called from the wrong thread
• ERROR_WIDGET_DISPOSED when the widget has been disposed

Since:

3.0

addTitleListener

public void addTitleListener(TitleListener listener)

Adds the listener to the collection of listeners who will be notified when the title of the current document is available or has changed.

Parameters:

listener - the listener which should be notified

Throws:

IllegalArgumentException -

• ERROR_NULL_ARGUMENT - if the listener is null

SWTException -

• ERROR_THREAD_INVALID_ACCESS when called from the wrong thread
• ERROR_WIDGET_DISPOSED when the widget has been disposed

Since:

3.0

addVisibilityWindowListener

public void addVisibilityWindowListener(VisibilityWindowListener listener)

Adds the listener to the collection of listeners who will be notified when a window hosting the receiver needs to be displayed or hidden.

Parameters:

listener - the listener which should be notified

Throws:

IllegalArgumentException -

• ERROR_NULL_ARGUMENT - if the listener is null

SWTException -

• ERROR_THREAD_INVALID_ACCESS when called from the wrong thread
• ERROR_WIDGET_DISPOSED when the widget has been disposed

Since:

3.0

back

public boolean back()

Navigate to the previous session history item.

Returns:

true if the operation was successful and false otherwise

Throws:

SWTException -

• ERROR_THREAD_INVALID_ACCESS when called from the wrong thread
• ERROR_WIDGET_DISPOSED when the widget has been disposed

Since:

3.0

See Also:

• forward()

checkSubclass

protected void checkSubclass()

Description copied from class: Widget

Checks that this class can be subclassed.

The SWT class library is intended to be subclassed only at specific, controlled points (most notably, Composite and Canvas when implementing new widgets). This method enforces this rule unless it is overridden.

IMPORTANT: By providing an implementation of this method that allows a subclass of a class which does not normally allow subclassing to be created, the implementer agrees to be fully responsible for the fact that any such subclass will likely fail between SWT releases and will be strongly platform specific. No support is provided for user-written classes which are implemented in this fashion.

The ability to subclass outside of the allowed SWT classes is intended purely to enable those not on the SWT development team to implement patches in order to get around specific limitations in advance of when those limitations can be addressed by the team. Subclassing should not be attempted without an intimate and detailed understanding of the hierarchy.

Overrides:

checkSubclass in class Composite

execute

public boolean execute(String script)

Executes the specified script.

Executes a script containing javascript commands in the context of the current document. If document-defined functions or properties are accessed by the script then this method should not be invoked until the document has finished loading (ProgressListener.completed() gives notification of this).

Parameters:

script - the script with javascript commands

Returns:

true if the operation was successful and false otherwise

Throws:

IllegalArgumentException -

• ERROR_NULL_ARGUMENT - if the script is null

SWTException -

• ERROR_THREAD_INVALID_ACCESS when called from the wrong thread
• ERROR_WIDGET_DISPOSED when the widget has been disposed

Since:

3.1

See Also:

• ProgressListener.completed(ProgressEvent)

close

public boolean close()

Attempts to dispose the receiver, but allows the dispose to be vetoed by the user in response to an onbeforeunload listener in the Browser's current page.

Returns:

true if the receiver was disposed, and false otherwise

Throws:

SWTException -

• ERROR_WIDGET_DISPOSED - if the receiver has been disposed
• ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver

Since:

3.6

See Also:

• Widget.dispose()

evaluate

public Object evaluate(String script)
                throws SWTException

Returns the result, if any, of executing the specified script.

Evaluates a script containing javascript commands in the context of the current document. If document-defined functions or properties are accessed by the script then this method should not be invoked until the document has finished loading (ProgressListener.completed() gives notification of this).

If the script returns a value with a supported type then a java representation of the value is returned. The supported javascript -> java mappings are:

• javascript null or undefined -> null
• javascript number -> java.lang.Double
• javascript string -> java.lang.String
• javascript boolean -> java.lang.Boolean
• javascript array whose elements are all of supported types -> java.lang.Object[]

An SWTException is thrown if the return value has an unsupported type, or if evaluating the script causes a javascript error to be thrown.

Parameters:

script - the script with javascript commands

Returns:

the return value, if any, of executing the script

Throws:

IllegalArgumentException -

• ERROR_NULL_ARGUMENT - if the script is null

SWTException -

• ERROR_FAILED_EVALUATE when the script evaluation causes a javascript error to be thrown
• ERROR_INVALID_RETURN_VALUE when the script returns a value of unsupported type
• ERROR_THREAD_INVALID_ACCESS when called from the wrong thread
• ERROR_WIDGET_DISPOSED when the widget has been disposed

Since:

3.5

See Also:

• evaluate(String,boolean)
• ProgressListener.completed(ProgressEvent)

evaluate

public Object evaluate(String script,
 boolean trusted)
                throws SWTException

Returns the result, if any, of executing the specified script.

Evaluates a script containing javascript commands. When trusted is true script is executed in the context of Chrome with Chrome security privileges. When trusted is false script is executed in the context of the current document with normal privileges.

If document-defined functions or properties are accessed by the script then this method should not be invoked until the document has finished loading (ProgressListener.completed() gives notification of this).

If the script returns a value with a supported type then a java representation of the value is returned. The supported javascript -> java mappings are:

• javascript null or undefined -> null
• javascript number -> java.lang.Double
• javascript string -> java.lang.String
• javascript boolean -> java.lang.Boolean
• javascript array whose elements are all of supported types -> java.lang.Object[]

An SWTException is thrown if the return value has an unsupported type, or if evaluating the script causes a javascript error to be thrown.

Parameters:

script - the script with javascript commands

trusted - true or false depending on the security context to be used

Returns:

the return value, if any, of executing the script

Throws:

IllegalArgumentException -

• ERROR_NULL_ARGUMENT - if the script is null

SWTException -

• ERROR_FAILED_EVALUATE when the script evaluation causes a javascript error to be thrown
• ERROR_INVALID_RETURN_VALUE when the script returns a value of unsupported type
• ERROR_THREAD_INVALID_ACCESS when called from the wrong thread
• ERROR_WIDGET_DISPOSED when the widget has been disposed

See Also:

• ProgressListener.completed(ProgressEvent)

forward

public boolean forward()

Navigate to the next session history item.

Returns:

true if the operation was successful and false otherwise

Throws:

SWTException -

• ERROR_THREAD_INVALID_ACCESS when called from the wrong thread
• ERROR_WIDGET_DISPOSED when the widget has been disposed

Since:

3.0

See Also:

• back()

getBrowserType

public String getBrowserType()

Returns the type of native browser being used by this instance. Examples: "ie", "webkit"

Returns:

the type of the native browser

Since:

3.5

getJavascriptEnabled

public boolean getJavascriptEnabled()

Returns true if javascript will be allowed to run in pages subsequently viewed in the receiver, and false otherwise. Note that this may not reflect the javascript enablement on the currently- viewed page if setJavascriptEnabled() has been invoked during its lifetime.

Returns:

the receiver's javascript enabled state

Throws:

SWTException -

• ERROR_WIDGET_DISPOSED - if the receiver has been disposed
• ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver

Since:

3.5

See Also:

• setJavascriptEnabled(boolean)

getStyle

public int getStyle()

Description copied from class: Widget

Returns the receiver's style information.

Note that the value which is returned by this method may not match the value which was provided to the constructor when the receiver was created. This can occur when the underlying operating system does not support a particular combination of requested styles. For example, if the platform widget used to implement a particular SWT widget always has scroll bars, the result of calling this method would always have the SWT.H_SCROLL and SWT.V_SCROLL bits set.

Overrides:

getStyle in class Widget

Returns:

the style bits

getText

public String getText()

Returns a string with HTML that represents the content of the current page.

Returns:

HTML representing the current page or an empty String if this is empty.

Note, the exact return value is platform dependent. For example on Windows, the returned string is the proccessed webpage with javascript executed and missing html tags added. On Linux and OS X, this returns the original HTML before the browser has processed it.

Throws:

SWTException -

• ERROR_THREAD_INVALID_ACCESS when called from the wrong thread
• ERROR_WIDGET_DISPOSED when the widget has been disposed

Since:

3.4

getUrl

public String getUrl()

Returns the current URL.

Returns:

the current URL or an empty String if there is no current URL

Throws:

SWTException -

• ERROR_THREAD_INVALID_ACCESS when called from the wrong thread
• ERROR_WIDGET_DISPOSED when the widget has been disposed

Since:

3.0

See Also:

• setUrl(java.lang.String)

getWebBrowser

@Deprecated
public Object getWebBrowser()

Deprecated.

SWT.MOZILLA is deprecated and XULRunner as a browser renderer is no longer supported.

Returns the JavaXPCOM nsIWebBrowser for the receiver, or null if it is not available. In order for an nsIWebBrowser to be returned all of the following must be true:

• the receiver's style must be SWT.MOZILLA
• the classes from JavaXPCOM >= 1.8.1.2 must be resolvable at runtime
• the version of the underlying XULRunner must be >= 1.8.1.2

Returns:

the receiver's JavaXPCOM nsIWebBrowser or null

Since:

3.3

isBackEnabled

public boolean isBackEnabled()

Returns true if the receiver can navigate to the previous session history item, and false otherwise.

Returns:

the receiver's back command enabled state

Throws:

SWTException -

• ERROR_WIDGET_DISPOSED - if the receiver has been disposed
• ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver

See Also:

• back()

isFocusControl

public boolean isFocusControl()

Description copied from class: Control

Returns true if the receiver has the user-interface focus, and false otherwise.

Overrides:

isFocusControl in class Control

Returns:

the receiver's focus state

isForwardEnabled

public boolean isForwardEnabled()

Returns true if the receiver can navigate to the next session history item, and false otherwise.

Returns:

the receiver's forward command enabled state

Throws:

SWTException -

• ERROR_WIDGET_DISPOSED - if the receiver has been disposed
• ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver

See Also:

• forward()

refresh

public void refresh()

Refresh the current page.

Throws:

SWTException -

• ERROR_THREAD_INVALID_ACCESS when called from the wrong thread
• ERROR_WIDGET_DISPOSED when the widget has been disposed

Since:

3.0

removeAuthenticationListener

public void removeAuthenticationListener(AuthenticationListener listener)

Removes the listener from the collection of listeners who will be notified when authentication is required.

Parameters:

listener - the listener which should no longer be notified

Throws:

IllegalArgumentException -

• ERROR_NULL_ARGUMENT - if the listener is null

SWTException -

• ERROR_THREAD_INVALID_ACCESS when called from the wrong thread
• ERROR_WIDGET_DISPOSED when the widget has been disposed

Since:

3.5

removeCloseWindowListener

public void removeCloseWindowListener(CloseWindowListener listener)

Removes the listener from the collection of listeners who will be notified when the window hosting the receiver should be closed.

Parameters:

listener - the listener which should no longer be notified

Throws:

IllegalArgumentException -

• ERROR_NULL_ARGUMENT - if the listener is null

SWTException -

• ERROR_THREAD_INVALID_ACCESS when called from the wrong thread
• ERROR_WIDGET_DISPOSED when the widget has been disposed

Since:

3.0

removeLocationListener

public void removeLocationListener(LocationListener listener)

Removes the listener from the collection of listeners who will be notified when the current location is changed or about to be changed.

Parameters:

listener - the listener which should no longer be notified

Throws:

IllegalArgumentException -

• ERROR_NULL_ARGUMENT - if the listener is null

SWTException -

• ERROR_THREAD_INVALID_ACCESS when called from the wrong thread
• ERROR_WIDGET_DISPOSED when the widget has been disposed

Since:

3.0

removeOpenWindowListener

public void removeOpenWindowListener(OpenWindowListener listener)

Removes the listener from the collection of listeners who will be notified when a new window needs to be created.

Parameters:

listener - the listener which should no longer be notified

Throws:

IllegalArgumentException -

• ERROR_NULL_ARGUMENT - if the listener is null

SWTException -

• ERROR_THREAD_INVALID_ACCESS when called from the wrong thread
• ERROR_WIDGET_DISPOSED when the widget has been disposed

Since:

3.0

removeProgressListener

public void removeProgressListener(ProgressListener listener)

Removes the listener from the collection of listeners who will be notified when a progress is made during the loading of the current URL or when the loading of the current URL has been completed.

Parameters:

listener - the listener which should no longer be notified

Throws:

IllegalArgumentException -

• ERROR_NULL_ARGUMENT - if the listener is null

SWTException -

• ERROR_THREAD_INVALID_ACCESS when called from the wrong thread
• ERROR_WIDGET_DISPOSED when the widget has been disposed

Since:

3.0

removeStatusTextListener

public void removeStatusTextListener(StatusTextListener listener)

Removes the listener from the collection of listeners who will be notified when the status text is changed.

Parameters:

listener - the listener which should no longer be notified

Throws:

IllegalArgumentException -

• ERROR_NULL_ARGUMENT - if the listener is null

SWTException -

• ERROR_THREAD_INVALID_ACCESS when called from the wrong thread
• ERROR_WIDGET_DISPOSED when the widget has been disposed

Since:

3.0

removeTitleListener

public void removeTitleListener(TitleListener listener)

Removes the listener from the collection of listeners who will be notified when the title of the current document is available or has changed.

Parameters:

listener - the listener which should no longer be notified

Throws:

IllegalArgumentException -

• ERROR_NULL_ARGUMENT - if the listener is null

SWTException -

• ERROR_THREAD_INVALID_ACCESS when called from the wrong thread
• ERROR_WIDGET_DISPOSED when the widget has been disposed

Since:

3.0

removeVisibilityWindowListener

public void removeVisibilityWindowListener(VisibilityWindowListener listener)

Removes the listener from the collection of listeners who will be notified when a window hosting the receiver needs to be displayed or hidden.

Parameters:

listener - the listener which should no longer be notified

Throws:

IllegalArgumentException -

• ERROR_NULL_ARGUMENT - if the listener is null

SWTException -

• ERROR_THREAD_INVALID_ACCESS when called from the wrong thread
• ERROR_WIDGET_DISPOSED when the widget has been disposed

Since:

3.0

setJavascriptEnabled

public void setJavascriptEnabled(boolean enabled)

Sets whether javascript will be allowed to run in pages subsequently viewed in the receiver. Note that setting this value does not affect the running of javascript in the current page.

Parameters:

enabled - the receiver's new javascript enabled state

Throws:

SWTException -

• ERROR_WIDGET_DISPOSED - if the receiver has been disposed
• ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver

Since:

3.5

setText

public boolean setText(String html)

Renders a string containing HTML. The rendering of the content occurs asynchronously. The rendered page will be given trusted permissions; to render the page with untrusted permissions use setText(String html, boolean trusted) instead.

The html parameter is Unicode-encoded since it is a java String. As a result, the HTML meta tag charset should not be set. The charset is implied by the String itself.

Parameters:

html - the HTML content to be rendered

Returns:

true if the operation was successful and false otherwise.

Throws:

IllegalArgumentException -

• ERROR_NULL_ARGUMENT - if the html is null

SWTException -

• ERROR_THREAD_INVALID_ACCESS when called from the wrong thread
• ERROR_WIDGET_DISPOSED when the widget has been disposed

Since:

3.0

See Also:

• setText(String,boolean)
• setUrl(java.lang.String)

setText

public boolean setText(String html,
 boolean trusted)

Renders a string containing HTML. The rendering of the content occurs asynchronously. The rendered page can be given either trusted or untrusted permissions.

The html parameter is Unicode-encoded since it is a java String. As a result, the HTML meta tag charset should not be set. The charset is implied by the String itself.

The trusted parameter affects the permissions that will be granted to the rendered page. Specifying true for trusted gives the page permissions equivalent to a page on the local file system, while specifying false for trusted gives the page permissions equivalent to a page from the internet. Page content should be specified as trusted if the invoker created it or trusts its source, since this would allow (for instance) style sheets on the local file system to be referenced. Page content should be specified as untrusted if its source is not trusted or is not known.

Parameters:

html - the HTML content to be rendered

trusted - false if the rendered page should be granted restricted permissions and true otherwise

Returns:

true if the operation was successful and false otherwise.

Throws:

IllegalArgumentException -

• ERROR_NULL_ARGUMENT - if the html is null

SWTException -

• ERROR_THREAD_INVALID_ACCESS when called from the wrong thread
• ERROR_WIDGET_DISPOSED when the widget has been disposed

Since:

3.6

See Also:

• setText(String)
• setUrl(java.lang.String)

setUrl

public boolean setUrl(String url)

Begins loading a URL. The loading of its content occurs asynchronously.

Parameters:

url - the URL to be loaded

Returns:

true if the operation was successful and false otherwise.

Throws:

IllegalArgumentException -

• ERROR_NULL_ARGUMENT - if the url is null

SWTException -

• ERROR_THREAD_INVALID_ACCESS when called from the wrong thread
• ERROR_WIDGET_DISPOSED when the widget has been disposed

Since:

3.0

See Also:

• getUrl()
• setUrl(String,String,String[])

setUrl

public boolean setUrl(String url,
 String postData,
 String[] headers)

Begins loading a URL. The loading of its content occurs asynchronously.

If the URL causes an HTTP request to be initiated then the provided postData and header arguments, if any, are sent with the request. A value in the headers argument must be a name-value pair with a colon separator in order to be sent (for example: "user-agent: custom").

Parameters:

url - the URL to be loaded

postData - post data to be sent with the request, or null

headers - header lines to be sent with the request, or null

Returns:

true if the operation was successful and false otherwise.

Throws:

IllegalArgumentException -

• ERROR_NULL_ARGUMENT - if the url is null

SWTException -

• ERROR_THREAD_INVALID_ACCESS when called from the wrong thread
• ERROR_WIDGET_DISPOSED when the widget has been disposed

Since:

3.6

stop

public void stop()

Stop any loading and rendering activity.

Throws:

SWTException -

• ERROR_THREAD_INVALID_ACCESS when called from the wrong thread
• ERROR_WIDGET_DISPOSED when the widget has been disposed

Since:

3.0