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execute Command from a Property Page [message #327925]

Thu, 08 May 2008 14:15

Simon F. Eggler

Messages: 7
Registered: July 2009

Junior Member

from a PropertyPage, i'm trying to execute a Command that opens another
Window/Dialog:

What i get is the following Exception:
org.eclipse.core.commands.ExecutionException: No activeWorkbenchWindow
found while executing org.eclipse.ui.help.aboutAction

What is wrong?

Help is greatly appreciated.
Cheers,
Simon

Detailed Code:
============================================================ =============

public class APropertyPage extends PropertyPage {

@Override
protected Control createContents(Composite parent) {

Composite composite = new Composite(parent, SWT.NONE);
composite.setLayout(new GridLayout(2, true));

Link link = new Link(composite, SWT.LEFT);
link.setText("<a>Command...</a>");
link.addListener(SWT.Selection, new Listener() {

public void handleEvent(Event event) {
final IHandlerService handlerService = (IHandlerService) PlatformUI
.getWorkbench().getService(IHandlerService.class);

try {

handlerService
.executeCommand(
"org.eclipse.ui.help.aboutAction",
event);
}
catch (Exception e) {
e.printStackTrace();
}
}

});

return composite;
}
}

Stack Trace:
============================================================ =============

org.eclipse.core.commands.ExecutionException: No activeWorkbenchWindow
found while executing org.eclipse.ui.help.aboutAction
at org.eclipse.ui.handlers.HandlerUtil.noVariableFound(HandlerU til.java:38)
at
org.eclipse.ui.handlers.HandlerUtil.getVariableChecked(Handl erUtil.java:86)
at
org.eclipse.ui.handlers.HandlerUtil.getActiveWorkbenchWindow Checked(HandlerUtil.java:188)
at org.eclipse.ui.internal.about.AboutHandler.execute(AboutHand ler.java:34)
at
org.eclipse.ui.internal.handlers.HandlerProxy.execute(Handle rProxy.java:240)
at org.eclipse.core.commands.Command.executeWithChecks(Command. java:475)
at
org.eclipse.ui.internal.handlers.HandlerService.executeComma nd(HandlerService.java:174)
at APropertyPage$1.handleEvent(ZuglaufPropertyPage.java:73)
at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java :66)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:938)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:962)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:947)
at org.eclipse.swt.widgets.Link.wmNotifyChild(Link.java:932)
at org.eclipse.swt.widgets.Control.wmNotify(Control.java:4563)
at org.eclipse.swt.widgets.Composite.wmNotify(Composite.java:15 81)
at org.eclipse.swt.widgets.Control.WM_NOTIFY(Control.java:4216)
at org.eclipse.swt.widgets.Control.windowProc(Control.java:3724 )
at org.eclipse.swt.widgets.Display.windowProc(Display.java:4364 )
at org.eclipse.swt.internal.win32.OS.CallWindowProcW(Native Method)
at org.eclipse.swt.internal.win32.OS.CallWindowProc(OS.java:217 9)
at org.eclipse.swt.widgets.Link.callWindowProc(Link.java:124)
at org.eclipse.swt.widgets.Widget.wmLButtonUp(Widget.java:1817)
at org.eclipse.swt.widgets.Control.WM_LBUTTONUP(Control.java:40 12)
at org.eclipse.swt.widgets.Link.WM_LBUTTONUP(Link.java:784)
at org.eclipse.swt.widgets.Control.windowProc(Control.java:3706 )
at org.eclipse.swt.widgets.Display.windowProc(Display.java:4364 )
at org.eclipse.swt.internal.win32.OS.DispatchMessageW(Native Method)
at org.eclipse.swt.internal.win32.OS.DispatchMessage(OS.java:22 65)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java :3291)
at org.eclipse.jface.window.Window.runEventLoop(Window.java:820 )
at org.eclipse.jface.window.Window.open(Window.java:796)
at
org.eclipse.ui.dialogs.PropertyDialogAction.run(PropertyDial ogAction.java:156)
at org.eclipse.jface.action.Action.runWithEvent(Action.java:498 )
at
org.eclipse.jface.action.ActionContributionItem.handleWidget Selection(ActionContributionItem.java:546)
at
org.eclipse.jface.action.ActionContributionItem.access$2(Act ionContributionItem.java:490)
at
org.eclipse.jface.action.ActionContributionItem$5.handleEven t(ActionContributionItem.java:402)
at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java :66)
at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:938)
at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.ja va:3682)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java :3293)
at org.eclipse.ui.internal.Workbench.runEventLoop(Workbench.jav a:2389)
at org.eclipse.ui.internal.Workbench.runUI(Workbench.java:2353)
at org.eclipse.ui.internal.Workbench.access$4(Workbench.java:22 19)
at org.eclipse.ui.internal.Workbench$4.run(Workbench.java:466)
at
org.eclipse.core.databinding.observable.Realm.runWithDefault (Realm.java:289)
at
org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Work bench.java:461)
at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.j ava:149)
at
ch.sbb.rcsd.client.application.internal.RCSDApplication.star t(RCSDApplication.java:36)
at
org.eclipse.equinox.internal.app.EclipseAppHandle.run(Eclips eAppHandle.java:169)
at
org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher .runApplication(EclipseAppLauncher.java:106)
at
org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher .start(EclipseAppLauncher.java:76)
at
org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseS tarter.java:363)
at
org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseS tarter.java:176)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAcce ssorImpl.java:39)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMe thodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java: 508)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:447)
at org.eclipse.equinox.launcher.Main.run(Main.java:1173)
at org.eclipse.equinox.launcher.Main.main(Main.java:1148)

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Re: execute Command from a Property Page [message #328656 is a reply to message #327925]

Fri, 30 May 2008 15:06

Paul Webster

Messages: 6859
Registered: July 2009
Location: Ottawa

Senior Member

Simon Eggler wrote:
> from a PropertyPage, i'm trying to execute a Command that opens another
> Window/Dialog:
>
> What i get is the following Exception:
> org.eclipse.core.commands.ExecutionException: No activeWorkbenchWindow
> found while executing org.eclipse.ui.help.aboutAction
>
>
> What is wrong?

Apparently that command won't run from a dialog. It needs the active
workbench window, and it looks like a dialog window means there's no
active workbench window in the global application context.

What version of eclipse? There were some changes that went into that
code in 3.4 (RC2 is out, we're almost at RC3)

>
> Stack Trace:
> ============================================================ =============
>
> org.eclipse.core.commands.ExecutionException: No activeWorkbenchWindow
> found while executing org.eclipse.ui.help.aboutAction
> at

--
Paul Webster
http://wiki.eclipse.org/Platform_Command_Framework
http://wiki.eclipse.org/Command_Core_Expressions
http://wiki.eclipse.org/Menu_Contributions
http://wiki.eclipse.org/Menus_Extension_Mapping
http://help.eclipse.org/help33/index.jsp?topic=/org.eclipse. platform.doc.isv/guide/workbench.htm

Paul Webster
http://wiki.eclipse.org/Platform_Command_Framework
http://wiki.eclipse.org/Command_Core_Expressions
http://wiki.eclipse.org/Menu_Contributions

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