Home » Eclipse Projects » Standard Widget Toolkit (SWT) » Display browser component to a new shell
| Display browser component to a new shell [message #463488] |
Tue, 08 November 2005 10:29  |
 Valerio Schiavoni
Messages: 9
Registered: July 2009 |
Junior Member |
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Hello, this is my first post.
I have this internal class:
class XPathListener implements SelectionListener {
public void widgetSelected(SelectionEvent arg0) {
this.widgetDefaultSelected(arg0); // forward to default
}
public void widgetDefaultSelected(SelectionEvent arg0) {
xpath = text.getText();
if (!fragmentsBrowserShell.isVisible())
fragmentsBrowserShell.open();
fragmentsBrowser.setText(getDocument().getContent(), xpath);
}
}
This class is used within a subclass of Composite, called
XPathControllerBar,
where i do something like this:
private void initializeFragmentsBrowser() {
fragmentsBrowserShell = new Shell();
fragmentsBrowserShell.setText("XPath Fragments");
fragmentsBrowser = new FragmentsBrowser(fragmentsBrowserShell,
SWT.NONE);
}
where fragmentsBrowser is an istance of this class:
public class FragmentsBrowser extends Composite implements Observer {
private Browser fragmentsBrowser = null;
public FragmentsBrowser(Composite parent, int style) {
super(parent, style);
initialize();
}
private void initialize() {
createBrowser();
initializeLayout();
}
private void initializeLayout() {
FormLayout layout = new FormLayout();
this.setLayout(layout);
FormData browserData = new FormData();
browserData.top = new FormAttachment(0, 25);
browserData.right = new FormAttachment(100, -10);
browserData.bottom = new FormAttachment(100, -10);
browserData.left = new FormAttachment(0, 10);
fragmentsBrowser.setLayoutData(browserData);
}
private void createBrowser() {
fragmentsBrowser = new Browser(this, SWT.NONE);
fragmentsBrowser.setToolTipText("Embedded Mozilla for xpath results");
}
public void setText(String html, String xpath) {
fragmentsBrowser.setText("<html><head><title>test
title</title></head><body>test</body></html>");
}
public void update(Observable o, Object arg) {
}
}
Now, when the event of a click (or enter) is caught by the XPathListener,
a new shell is opened (that is, a new application window, don't sure about
the terminology), but the content of the browser is not rendered.
Any help is very appreciated.
Thanks,
valerio
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| Re: Display browser component to a new shell [message #463494 is a reply to message #463488] |
Tue, 08 November 2005 12:07  |
Veronika Irvine
Messages: 1272
Registered: July 2009 |
Senior Member |
|
|
You need to have a layout on the fragmentsBrowserShell. Do you have
something like:
fragmentsBrowserShell.setLayout(new FillLayout());
"Valerio Schiavoni" <valerio.schiavoni@gmail.com> wrote in message
news:243567b8254598a7abd1e727afd29475$1@www.eclipse.org...
> Hello, this is my first post.
>
> I have this internal class:
> class XPathListener implements SelectionListener {
>
> public void widgetSelected(SelectionEvent arg0) {
> this.widgetDefaultSelected(arg0); // forward to default
> }
>
> public void widgetDefaultSelected(SelectionEvent arg0) {
> xpath = text.getText();
> if (!fragmentsBrowserShell.isVisible())
> fragmentsBrowserShell.open();
> fragmentsBrowser.setText(getDocument().getContent(), xpath);
> }
>
> }
>
> This class is used within a subclass of Composite, called
> XPathControllerBar,
> where i do something like this:
> private void initializeFragmentsBrowser() {
> fragmentsBrowserShell = new Shell();
> fragmentsBrowserShell.setText("XPath Fragments");
> fragmentsBrowser = new FragmentsBrowser(fragmentsBrowserShell,
> SWT.NONE);
> }
>
> where fragmentsBrowser is an istance of this class:
>
>
> public class FragmentsBrowser extends Composite implements Observer {
> private Browser fragmentsBrowser = null;
> public FragmentsBrowser(Composite parent, int style) {
> super(parent, style);
> initialize();
> }
>
> private void initialize() {
> createBrowser();
> initializeLayout();
> }
>
>
> private void initializeLayout() {
> FormLayout layout = new FormLayout();
> this.setLayout(layout);
>
> FormData browserData = new FormData();
> browserData.top = new FormAttachment(0, 25);
> browserData.right = new FormAttachment(100, -10);
> browserData.bottom = new FormAttachment(100, -10);
> browserData.left = new FormAttachment(0, 10);
> fragmentsBrowser.setLayoutData(browserData);
> }
>
>
> private void createBrowser() {
> fragmentsBrowser = new Browser(this, SWT.NONE);
> fragmentsBrowser.setToolTipText("Embedded Mozilla for xpath results");
> }
>
> public void setText(String html, String xpath) {
> fragmentsBrowser.setText("<html><head><title>test
> title</title></head><body>test</body></html>");
>
> }
>
> public void update(Observable o, Object arg) {
> }
>
> }
>
>
>
> Now, when the event of a click (or enter) is caught by the XPathListener,
> a new shell is opened (that is, a new application window, don't sure about
> the terminology), but the content of the browser is not rendered.
>
> Any help is very appreciated.
>
> Thanks,
> valerio
>
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| Re: Display browser component to a new shell [message #463498 is a reply to message #463494] |
Tue, 08 November 2005 13:39 |
Valerio Schiavoni
Messages: 9
Registered: July 2009 |
Junior Member |
|
|
Hello,
Veronika Irvine wrote:
> fragmentsBrowserShell.setLayout(new FillLayout());
thanks now the new shell is displayed.
the problem is that if i close it, and i try to perform the same action
(that is, a click on a button, caught by the XPathListener) i got the
exception:
Exception in thread "main" org.eclipse.swt.SWTException: Widget is disposed
at org.eclipse.swt.SWT.error(SWT.java:3251)
at org.eclipse.swt.SWT.error(SWT.java:3174)
at org.eclipse.swt.SWT.error(SWT.java:3145)
at org.eclipse.swt.widgets.Widget.error(Widget.java:419)
at org.eclipse.swt.widgets.Widget.checkWidget(Widget.java:357)
at org.eclipse.swt.widgets.Shell.isVisible(Shell.java:599)
at
jfrr.xpathvisualizer.XPathControlBar$XPathListener.widgetDef aultSelected(XPathControlBar.java:38)
at
jfrr.xpathvisualizer.XPathControlBar$XPathListener.widgetSel ected(XPathControlBar.java:32)
at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListe ner.java:90)
at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java :66)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1050)
at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.ja va:2909)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java :2605)
at jfrr.xpathvisualizer.XPathMain.main(XPathMain.java:61)
The error come from this line:
if (!fragmentsBrowserShell.isVisible())
i suppose i misunderstood the semantic of that method.
What i wanted to obtain was that if a user closes the windows, clicking
on the button should re-open it.
Thanks for any help,
valerio
>
>
> "Valerio Schiavoni" <valerio.schiavoni@gmail.com> wrote in message
> news:243567b8254598a7abd1e727afd29475$1@www.eclipse.org...
>
>>Hello, this is my first post.
>>
>>I have this internal class:
>>class XPathListener implements SelectionListener {
>>
>> public void widgetSelected(SelectionEvent arg0) {
>> this.widgetDefaultSelected(arg0); // forward to default
>> }
>>
>> public void widgetDefaultSelected(SelectionEvent arg0) {
>> xpath = text.getText();
>> if (!fragmentsBrowserShell.isVisible())
>> fragmentsBrowserShell.open();
>> fragmentsBrowser.setText(getDocument().getContent(), xpath);
>> }
>>
>>}
>>
>>This class is used within a subclass of Composite, called
>>XPathControllerBar,
>>where i do something like this:
>>private void initializeFragmentsBrowser() {
>> fragmentsBrowserShell = new Shell();
>> fragmentsBrowserShell.setText("XPath Fragments");
>> fragmentsBrowser = new FragmentsBrowser(fragmentsBrowserShell,
>>SWT.NONE);
>>}
>>
>>where fragmentsBrowser is an istance of this class:
>>
>>
>>public class FragmentsBrowser extends Composite implements Observer {
>> private Browser fragmentsBrowser = null;
>> public FragmentsBrowser(Composite parent, int style) {
>> super(parent, style);
>> initialize();
>> }
>>
>> private void initialize() {
>> createBrowser();
>> initializeLayout();
>> }
>>
>>
>> private void initializeLayout() {
>> FormLayout layout = new FormLayout();
>> this.setLayout(layout);
>>
>> FormData browserData = new FormData();
>> browserData.top = new FormAttachment(0, 25);
>> browserData.right = new FormAttachment(100, -10);
>> browserData.bottom = new FormAttachment(100, -10);
>> browserData.left = new FormAttachment(0, 10);
>> fragmentsBrowser.setLayoutData(browserData);
>> }
>>
>>
>> private void createBrowser() {
>> fragmentsBrowser = new Browser(this, SWT.NONE);
>> fragmentsBrowser.setToolTipText("Embedded Mozilla for xpath results");
>> }
>>
>>public void setText(String html, String xpath) {
>> fragmentsBrowser.setText("<html><head><title>test
>>title</title></head><body>test</body></html>");
>>
>>}
>>
>> public void update(Observable o, Object arg) {
>> }
>>
>>}
>>
>>
>>
>>Now, when the event of a click (or enter) is caught by the XPathListener,
>>a new shell is opened (that is, a new application window, don't sure about
>>the terminology), but the content of the browser is not rendered.
>>
>>Any help is very appreciated.
>>
>>Thanks,
>>valerio
>>
>
>
>
|
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| Re: Display browser component to a new shell [message #463508 is a reply to message #463498] |
Tue, 08 November 2005 14:55 |
Eclipse User |
|
|
|
Originally posted by: friederich.kupzog.de
Maybe using setVisible() instead of open/close helps?
Regards,
Friederich
Valerio Schiavoni wrote:
> Hello,
> Veronika Irvine wrote:
>
>
>>fragmentsBrowserShell.setLayout(new FillLayout());
>
>
> thanks now the new shell is displayed.
> the problem is that if i close it, and i try to perform the same action
> (that is, a click on a button, caught by the XPathListener) i got the
> exception:
>
> Exception in thread "main" org.eclipse.swt.SWTException: Widget is disposed
> at org.eclipse.swt.SWT.error(SWT.java:3251)
> at org.eclipse.swt.SWT.error(SWT.java:3174)
> at org.eclipse.swt.SWT.error(SWT.java:3145)
> at org.eclipse.swt.widgets.Widget.error(Widget.java:419)
> at org.eclipse.swt.widgets.Widget.checkWidget(Widget.java:357)
> at org.eclipse.swt.widgets.Shell.isVisible(Shell.java:599)
> at
> jfrr.xpathvisualizer.XPathControlBar$XPathListener.widgetDef aultSelected(XPathControlBar.java:38)
> at
> jfrr.xpathvisualizer.XPathControlBar$XPathListener.widgetSel ected(XPathControlBar.java:32)
> at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListe ner.java:90)
> at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java :66)
> at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1050)
> at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.ja va:2909)
> at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java :2605)
> at jfrr.xpathvisualizer.XPathMain.main(XPathMain.java:61)
>
> The error come from this line:
> if (!fragmentsBrowserShell.isVisible())
>
> i suppose i misunderstood the semantic of that method.
> What i wanted to obtain was that if a user closes the windows, clicking
> on the button should re-open it.
>
> Thanks for any help,
> valerio
>
>
>
>>
>>"Valerio Schiavoni" <valerio.schiavoni@gmail.com> wrote in message
>>news:243567b8254598a7abd1e727afd29475$1@www.eclipse.org...
>>
>>
>>>Hello, this is my first post.
>>>
>>>I have this internal class:
>>>class XPathListener implements SelectionListener {
>>>
>>> public void widgetSelected(SelectionEvent arg0) {
>>> this.widgetDefaultSelected(arg0); // forward to default
>>> }
>>>
>>> public void widgetDefaultSelected(SelectionEvent arg0) {
>>> xpath = text.getText();
>>> if (!fragmentsBrowserShell.isVisible())
>>> fragmentsBrowserShell.open();
>>> fragmentsBrowser.setText(getDocument().getContent(), xpath);
>>> }
>>>
>>>}
>>>
>>>This class is used within a subclass of Composite, called
>>>XPathControllerBar,
>>>where i do something like this:
>>>private void initializeFragmentsBrowser() {
>>> fragmentsBrowserShell = new Shell();
>>> fragmentsBrowserShell.setText("XPath Fragments");
>>> fragmentsBrowser = new FragmentsBrowser(fragmentsBrowserShell,
>>>SWT.NONE);
>>>}
>>>
>>>where fragmentsBrowser is an istance of this class:
>>>
>>>
>>>public class FragmentsBrowser extends Composite implements Observer {
>>>private Browser fragmentsBrowser = null;
>>>public FragmentsBrowser(Composite parent, int style) {
>>> super(parent, style);
>>> initialize();
>>> }
>>>
>>>private void initialize() {
>>> createBrowser();
>>> initializeLayout();
>>>}
>>>
>>>
>>>private void initializeLayout() {
>>> FormLayout layout = new FormLayout();
>>> this.setLayout(layout);
>>>
>>> FormData browserData = new FormData();
>>> browserData.top = new FormAttachment(0, 25);
>>> browserData.right = new FormAttachment(100, -10);
>>> browserData.bottom = new FormAttachment(100, -10);
>>> browserData.left = new FormAttachment(0, 10);
>>> fragmentsBrowser.setLayoutData(browserData);
>>>}
>>>
>>>
>>>private void createBrowser() {
>>> fragmentsBrowser = new Browser(this, SWT.NONE);
>>> fragmentsBrowser.setToolTipText("Embedded Mozilla for xpath results");
>>>}
>>>
>>>public void setText(String html, String xpath) {
>>> fragmentsBrowser.setText("<html><head><title>test
>>>title</title></head><body>test</body></html>");
>>>
>>>}
>>>
>>>public void update(Observable o, Object arg) {
>>> }
>>>
>>>}
>>>
>>>
>>>
>>>Now, when the event of a click (or enter) is caught by the XPathListener,
>>>a new shell is opened (that is, a new application window, don't sure about
>>>the terminology), but the content of the browser is not rendered.
>>>
>>>Any help is very appreciated.
>>>
>>>Thanks,
>>>valerio
>>>
>>
>>
>>
--
Friederich Kupzog
Elektronik & Software
Neusser Str. 5-7
50670 Köln
Tel 0241 160696-1
Fax 0221 726670
www.kupzog.de/fkmk
|
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| Re: Display browser component to a new shell [message #463511 is a reply to message #463498] |
Tue, 08 November 2005 15:57 |
Veronika Irvine
Messages: 1272
Registered: July 2009 |
Senior Member |
|
|
When the shell is closed, it is disposed.
If you wish to resuse the shell, you should stop it from disposing on close
e.g.
fragmentsBrowserShell.addListener(SWT.Close, new Listener() {
public void handleEvent(Event e) {
e.doit = false;
fragmentsBrowserShell.setVisible(false);
}
});
"Valerio Schiavoni" <valerio.schiavoni@gmail.com> wrote in message
news:dkq9r9$cp4$1@news.eclipse.org...
> Hello,
> Veronika Irvine wrote:
>
>> fragmentsBrowserShell.setLayout(new FillLayout());
>
> thanks now the new shell is displayed.
> the problem is that if i close it, and i try to perform the same action
> (that is, a click on a button, caught by the XPathListener) i got the
> exception:
>
> Exception in thread "main" org.eclipse.swt.SWTException: Widget is
> disposed
> at org.eclipse.swt.SWT.error(SWT.java:3251)
> at org.eclipse.swt.SWT.error(SWT.java:3174)
> at org.eclipse.swt.SWT.error(SWT.java:3145)
> at org.eclipse.swt.widgets.Widget.error(Widget.java:419)
> at org.eclipse.swt.widgets.Widget.checkWidget(Widget.java:357)
> at org.eclipse.swt.widgets.Shell.isVisible(Shell.java:599)
> at
> jfrr.xpathvisualizer.XPathControlBar$XPathListener.widgetDef aultSelected(XPathControlBar.java:38)
> at
> jfrr.xpathvisualizer.XPathControlBar$XPathListener.widgetSel ected(XPathControlBar.java:32)
> at
> org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListe ner.java:90)
> at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java :66)
> at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1050)
> at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.ja va:2909)
> at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java :2605)
> at jfrr.xpathvisualizer.XPathMain.main(XPathMain.java:61)
>
> The error come from this line:
> if (!fragmentsBrowserShell.isVisible())
>
> i suppose i misunderstood the semantic of that method.
> What i wanted to obtain was that if a user closes the windows, clicking
> on the button should re-open it.
>
> Thanks for any help,
> valerio
>
>
>>
>>
>> "Valerio Schiavoni" <valerio.schiavoni@gmail.com> wrote in message
>> news:243567b8254598a7abd1e727afd29475$1@www.eclipse.org...
>>
>>>Hello, this is my first post.
>>>
>>>I have this internal class:
>>>class XPathListener implements SelectionListener {
>>>
>>> public void widgetSelected(SelectionEvent arg0) {
>>> this.widgetDefaultSelected(arg0); // forward to default
>>> }
>>>
>>> public void widgetDefaultSelected(SelectionEvent arg0) {
>>> xpath = text.getText();
>>> if (!fragmentsBrowserShell.isVisible())
>>> fragmentsBrowserShell.open();
>>> fragmentsBrowser.setText(getDocument().getContent(), xpath);
>>> }
>>>
>>>}
>>>
>>>This class is used within a subclass of Composite, called
>>>XPathControllerBar,
>>>where i do something like this:
>>>private void initializeFragmentsBrowser() {
>>> fragmentsBrowserShell = new Shell();
>>> fragmentsBrowserShell.setText("XPath Fragments");
>>> fragmentsBrowser = new FragmentsBrowser(fragmentsBrowserShell,
>>>SWT.NONE);
>>>}
>>>
>>>where fragmentsBrowser is an istance of this class:
>>>
>>>
>>>public class FragmentsBrowser extends Composite implements Observer {
>>> private Browser fragmentsBrowser = null;
>>> public FragmentsBrowser(Composite parent, int style) {
>>> super(parent, style);
>>> initialize();
>>> }
>>>
>>> private void initialize() {
>>> createBrowser();
>>> initializeLayout();
>>> }
>>>
>>>
>>> private void initializeLayout() {
>>> FormLayout layout = new FormLayout();
>>> this.setLayout(layout);
>>>
>>> FormData browserData = new FormData();
>>> browserData.top = new FormAttachment(0, 25);
>>> browserData.right = new FormAttachment(100, -10);
>>> browserData.bottom = new FormAttachment(100, -10);
>>> browserData.left = new FormAttachment(0, 10);
>>> fragmentsBrowser.setLayoutData(browserData);
>>> }
>>>
>>>
>>> private void createBrowser() {
>>> fragmentsBrowser = new Browser(this, SWT.NONE);
>>> fragmentsBrowser.setToolTipText("Embedded Mozilla for xpath results");
>>> }
>>>
>>>public void setText(String html, String xpath) {
>>> fragmentsBrowser.setText("<html><head><title>test
>>>title</title></head><body>test</body></html>");
>>>
>>>}
>>>
>>> public void update(Observable o, Object arg) {
>>> }
>>>
>>>}
>>>
>>>
>>>
>>>Now, when the event of a click (or enter) is caught by the XPathListener,
>>>a new shell is opened (that is, a new application window, don't sure
>>>about
>>>the terminology), but the content of the browser is not rendered.
>>>
>>>Any help is very appreciated.
>>>
>>>Thanks,
>>>valerio
>>>
>>
>>
>>
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