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POContext issue whilst adding IUndoableOperation to my EditorPart
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copied!<p>I was following the example described in <a href="http://help.eclipse.org/indigo/topic/org.eclipse.platform.doc.isv/guide/wrkAdv_undo.htm" rel="nofollow">http://help.eclipse.org/indigo/topic/org.eclipse.platform.doc.isv/guide/wrkAdv_undo.htm</a></p> <p>in the <code>init()</code> method of my <code>EditorPart</code></p> <pre><code> /** * @see org.eclipse.ui.part.EditorPart#init(org.eclipse.ui.IEditorSite, * org.eclipse.ui.IEditorInput) */ @Override public void init(IEditorSite site,IEditorInput input) throws PartInitException { ... IWorkbench workbench = getSite().getWorkbenchWindow().getWorkbench(); myUndoContext= workbench.getOperationSupport().getUndoContext(); UndoRedoActionGroup historyActionGroup = new UndoRedoActionGroup(site, myUndoContext, true); historyActionGroup.fillActionBars(site.getActionBars()); } </code></pre> <p>... I added the following to a method in my <code>EditorPart</code></p> <pre><code> IUndoableOperation operation = new MyOperation("My Action"); operation.addContext(myUndoContext); try { IStatus status = OperationHistoryFactory.getOperationHistory().execute(operation, null, null); } catch (ExecutionException e) { e.printStackTrace(); } </code></pre> <p>I was able to add undo actions but I noticed that the undo actions gets added to all files opened by my custom editor. When I make changes to a file, all other opened files gets the undo operation added to the edit menu. How can I make it only applicable to the currently active file?</p>

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