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    <p>We have solved this by getting all request of anykind of "post selection". The following Code snipped is from a sidebarplugin and is called in createViewPart():</p> <pre><code>m_Observer = new NotesSelectionObserverImpl(); NotesSelectionObservable cObservable = new NotesSelectionObservable(); PlatformUI.getWorkbench().getActiveWorkbenchWindow().getSelectionService().addPostSelectionListener(cObservable); cObservable.addObserver(this.m_Observer); </code></pre> <p>The first part of the magic is "PlattformUI ..... .addPostSelecitonListener();" On this point we register our listener, witch is als based on a observer pattern. </p> <pre><code>class NotesSelectionObserverImpl implements NotesSelectionObserver { @Override public void onSelectionChange(NotesSelectionContext cContext) throws NotesException { Database ndbCurrent = cContext.getDatabase(); Document docCurrent = cContext.getDocument(); if (ndbCurrent != null &amp;&amp; docCurrent != null) { String strEMail = ""; if (docCurrent.getItemValueString("Form").equals("Memo") || docCurrent.getItemValueString("Form") .equals("Reply")) { strEMail = docCurrent.getItemValueString("From"); strEMail = parseEMail(strEMail); System.out.println("EMAIL: " + strEMail); ContextCommand ccCurrent = new ContextCommand(strEMail, docCurrent.getItemValueString("Subject")); m_State.doFeedAction(false, m_Feeds.get(Activator.FEED_CONTEXT_ID), ccCurrent); } } } @Override public void onUpdateAfterSelectionChange() { // TODO Auto-generated method stub } } </code></pre> <p>The NotesSelectionObserver is a interface with the following definition:</p> <pre><code>import lotus.domino.NotesException; public interface NotesSelectionObserver { void onSelectionChange(NotesSelectionContext cContext) throws NotesException; void onUpdateAfterSelectionChange(); } </code></pre> <p>The NotesSelecitonContext is a other Interface that delivers all the information about the Selection. Here the definition:</p> <pre><code>import lotus.domino.Database; import lotus.domino.Document; public interface NotesSelectionContext { public Database getDatabase(); public Document getDocument(); public String getField(); } </code></pre> <p>So and now the last part, witch is the clue.... the NotesSelectionObservable:</p> <pre><code>import java.net.MalformedURLException; import java.net.URL; import java.util.StringTokenizer; import java.util.Vector; import lotus.domino.Database; import lotus.domino.Document; import lotus.domino.NotesException; import lotus.domino.Session; import org.eclipse.core.runtime.IProgressMonitor; import org.eclipse.core.runtime.IStatus; import org.eclipse.core.runtime.Status; import org.eclipse.core.runtime.jobs.Job; import org.eclipse.jface.viewers.ISelection; import org.eclipse.jface.viewers.StructuredSelection; import org.eclipse.ui.INullSelectionListener; import org.eclipse.ui.IWorkbenchPart; import org.eclipse.ui.progress.UIJob; import com.ibm.csi.types.DocumentSummary; import com.ibm.notes.java.api.util.NotesSessionJob; import com.ibm.notes.java.ui.documents.NotesUIField; import com.ibm.workplace.noteswc.selection.NotesApplicationInfo; import com.ibm.workplace.noteswc.selection.NotesFieldSelection; import com.ibm.workplace.noteswc.selection.NotesTextSelection; public class NotesSelectionObservable implements INullSelectionListener { public void addObserver(NotesSelectionObserver cObserver) { if (!this.m_cObserverList.contains(cObserver)) this.m_cObserverList.add(cObserver); } public void removeObserver(NotesSelectionObserver cObserver) { this.m_cObserverList.remove(cObserver); } public void selectionChanged(IWorkbenchPart cPart, ISelection cSelection) { if (cSelection == null || cSelection.isEmpty()) this.clearSelection(); else if (cSelection instanceof StructuredSelection) { Object cObj = ((StructuredSelection) cSelection).getFirstElement(); if (cObj instanceof DocumentSummary) { DocumentSummary cSummary = (DocumentSummary) cObj; this.setURL(cSummary.getUrl()); if (cSummary.getDocumentKey() != null) this.setURL(cSummary.getDocumentKey().getUniqueId()); } else if (cObj instanceof NotesApplicationInfo) { NotesApplicationInfo cInfo = (NotesApplicationInfo) cObj; this.setURL(cInfo.getUrl()); } if (cObj instanceof NotesFieldSelection) { NotesUIField f = ((NotesFieldSelection)cObj).getCurrentField(); this.setField(f.getName()); } if (cObj instanceof NotesTextSelection) { // String strOut = ((NotesTextSelection) cObj).getText(); // System.out.println("Selektierter Text: " + strOut); } if (false) { Class&lt;? extends Object&gt; c; String cl = null; for (c = cObj.getClass(); c != null; c = c.getSuperclass()) { if (c.equals(Object.class)) break; cl = cl != null ? cl + " : " + c.getName() : c.getName(); } System.out.println("Type of selected object: " + cl); } } if (this.m_bModified) { this.startJob(); this.m_bModified = false; } } private void clearSelection() { this.m_strDatabaseRepID = null; this.m_strDatabaseServer = null; this.m_strDocumentUNID = null; this.m_strDesginElement = null; this.m_strField = null; this.m_bModified = true; } private void setDatabase(String strRepID, String strServer) { if (strRepID.equals(this.m_strDatabaseRepID) == false || (strServer != null &amp;&amp; this.m_strDatabaseServer == null) || (this.m_strDatabaseServer != null &amp;&amp; this.m_strDatabaseServer.equals(strServer) == false)) { this.m_strDatabaseRepID = strRepID; this.m_strDatabaseServer = strServer; this.m_strDesginElement = null; this.m_strDocumentUNID = null; this.m_strField = null; this.m_bModified = true; } } private void setDesignElement(String strUNID) { if (!strUNID.equals(this.m_strDesginElement)) { this.m_strDesginElement = strUNID; this.m_strDocumentUNID = null; this.m_strField = null; this.m_bModified = true; } } private void setDocument(String strDocumentUNID) { if (!strDocumentUNID.equals(this.m_strDocumentUNID)) { this.m_strDocumentUNID = strDocumentUNID; this.m_strField = null; this.m_bModified = true; } } private void setField(String strField) { if (!strField.equals(this.m_strField)) { this.m_strField = strField; this.m_bModified = true; } } private void setURL(String strURL) { if (strURL == null || strURL.isEmpty()) return; URL cURL; try { cURL = new URL(strURL); } catch (MalformedURLException e) { return; } if (!cURL.getProtocol().equalsIgnoreCase("notes")) return; StringTokenizer cToken = new StringTokenizer(cURL.getPath() .substring(1), "/"); if (cToken.hasMoreElements()) this.setDatabase(cToken.nextToken(), cURL.getHost().isEmpty() ? null : cURL.getHost()); else return; if (cToken.hasMoreElements()) this.setDesignElement(cToken.nextToken()); else return; if (cToken.hasMoreElements()) this.setDocument(cToken.nextToken()); } private void startJob() { if (this.m_strDatabaseRepID != null &amp;&amp; this.m_cObserverList.size() &gt; 0) { Job cJob = new TheJob(this); cJob.schedule(); try { cJob.join(); for (NotesSelectionObserver o : this.m_cObserverList) o.onUpdateAfterSelectionChange(); this.m_bModified = false; } catch (InterruptedException e) { return; } cJob = new TheUIJob(this); cJob.schedule(); } } private class NotesSelectionContextImp implements NotesSelectionContext { public Database getDatabase() { return cDatabase; } public Document getDocument() { return cDocument; } public String getField() { return strField; } public Database cDatabase; public Document cDocument; public String strField; } private class TheJob extends NotesSessionJob { public TheJob(NotesSelectionObservable cObservable) { super(cObservable.getClass().getName() + ".selectionChanged()"); this.m_strRepID = cObservable.m_strDatabaseRepID; this.m_strServer = cObservable.m_strDatabaseServer != null ? cObservable.m_strDatabaseServer : ""; if (this.m_strServer.contains("%2F")) this.m_strServer = this.m_strServer.replace("%2F", "/"); this.m_strDocumentUNID = cObservable.m_strDocumentUNID; this.m_cContext.strField = cObservable.m_strField; this.m_cObservable = cObservable; } protected IStatus runInNotesThread(Session cSession, IProgressMonitor cProgress) throws NotesException { this.m_cContext.cDatabase = cSession.getDbDirectory(this.m_strServer).openDatabaseByReplicaID(this.m_strRepID); if (!this.m_cContext.cDatabase.isOpen()) { this.m_cContext.cDatabase.open(); } this.m_cContext.cDocument = this.m_strDocumentUNID != null ? this.m_cContext.cDatabase.getDocumentByUNID(this.m_strDocumentUNID) : null; for (NotesSelectionObserver o : this.m_cObservable.m_cObserverList) o.onSelectionChange(this.m_cContext); return Status.OK_STATUS; } private NotesSelectionContextImp m_cContext = new NotesSelectionContextImp(); private NotesSelectionObservable m_cObservable; private String m_strRepID; private String m_strServer; private String m_strDocumentUNID; } private class TheUIJob extends UIJob { public TheUIJob(NotesSelectionObservable cObservable) { super(cObservable.getClass().getName() + ".selectionChanged()"); this.m_cObservable = cObservable; } public IStatus runInUIThread(IProgressMonitor arg0) { for (NotesSelectionObserver o : this.m_cObservable.m_cObserverList) o.onUpdateAfterSelectionChange(); this.m_cObservable.m_bModified = false; return Status.OK_STATUS; } private NotesSelectionObservable m_cObservable; } private String m_strDatabaseRepID = null; private String m_strDatabaseServer = null; private String m_strDesginElement = null; private String m_strDocumentUNID = null; private String m_strField = null; private boolean m_bModified = false; private Vector&lt;NotesSelectionObserver&gt; m_cObserverList = new Vector&lt;NotesSelectionObserver&gt;(); } </code></pre> <p>You have also asked about the list of plugins: </p> <pre><code> org.eclipse.ui, org.eclipse.core.runtime, com.ibm.notes.java.api;bundle-version="1.5.1", com.ibm.notes.java.ui;bundle-version="8.5.1", com.ibm.csi;bundle-version="1.5.1", com.ibm.notes.client;bundle-version="8.5.1" </code></pre> <p>We will bring this code also as a plugin to the openNTF Community. I think anybody who wants to extend the notesclient via Sidebars need to be aware on witch context a user is and wants to response to this context.</p>
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