Class 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

    Note: MOZILLA is deprecated and is no longer supported.

    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.
    • Constructor Detail

      • 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 Detail

      • 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=Thu, 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.

        Note: Chrome security context is applicable only to Browsers with style SWT.Mozilla.

        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", "mozilla", "voyager", "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