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[Richtext Editor] How to wait to load of browser [message #1743864]

Tue, 20 September 2016 05:46

Eclipse User

Hi,

I use the richtext editor in a view but, at the first opening I have:

!ENTRY org.eclipse.e4.ui.workbench 4 0 2016-09-20 11:36:58.467
!MESSAGE 
!STACK 0
org.eclipse.swt.SWTException: Impossible d'obtenir la propriété  « setReadOnly » d'une référence null ou non définie
	at org.eclipse.swt.browser.WebBrowser$EvaluateFunction.function(WebBrowser.java:192)
	at org.eclipse.swt.browser.WebSite.Invoke(WebSite.java:833)

Apparently the browser is not totally loaded and CKEditor function are not yet available.

Is there a way to wait or be sure that function are loaded before using them?

thanks a lot.

Mickaël

Re: [Richtext Editor] How to wait to load of browser [message #1743874 is a reply to message #1743864]

Tue, 20 September 2016 06:39

Eclipse User

How does your code look like?

Re: [Richtext Editor] How to wait to load of browser [message #1743886 is a reply to message #1743874]

Tue, 20 September 2016 08:20

Eclipse User

The instanciation:

	toolbarConfig = new UMLToolbarConfiguration();
		toolbarConfig.toolbarCollapsible = true;
		toolbarConfig.removeFormat = false;
		toolbarConfig.toolbarInitialExpanded = Activator.getToolbarInitialExpendedPreference();

		richtextEditor = new UMLRichtextEditorWithReferences(parent, toolbarConfig);

The refrech at the selection change on a diagram element or at the opening when an element is already selected:

// Refresh rich text text editor
		richtextEditor.getDisplay().syncExec(new Runnable() {

			@Override
			public void run() {
				if (null != richtextEditor && !richtextEditor.isDisposed()) {
					richtextEditor.configureEdition(comment, null != comment ? UMLPackage.eINSTANCE.getComment_Body() : null);
					richtextEditor.setText(text);
					richtextEditor.setEditable(readOnly ? false : editable);
				}
			}
		});

NB: I passe from asyncExec to syncExec due to synchronisation issue but I have now "permission refused issue" which comme back:

!ENTRY org.eclipse.e4.ui.workbench 4 0 2016-09-20 14:19:07.154
!MESSAGE 
!STACK 0
org.eclipse.swt.SWTException: Permission refusée
	at org.eclipse.swt.browser.WebBrowser$EvaluateFunction.function(WebBrowser.java:192)
	at org.eclipse.swt.browser.WebSite.Invoke(WebSite.java:833)
	at org.eclipse.swt.browser.WebSite$7.method6(WebSite.java:184)
	at org.eclipse.swt.internal.ole.win32.COMObject.callback6(COMObject.java:119)
	at org.eclipse.swt.internal.ole.win32.COM.VtblCall(Native Method)
	at org.eclipse.swt.internal.ole.win32.IDispatch.Invoke(IDispatch.java:64)

Re: [Richtext Editor] How to wait to load of browser [message #1743898 is a reply to message #1743886]

Tue, 20 September 2016 09:05

Eclipse User

I don't understand why you are operating with runnables to initialize the control. And from which thread you are starting everything. But personally I would suggest to check your multi threading code and ensure you are in the UI thread. And probably don't use multi treading but operate in a single thread sequentially.

As I don't know the whole context I'm sorry, but I can't help.

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