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package eu.etaxonomy.taxeditor.navigation;
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import org.eclipse.core.runtime.IProgressMonitor;
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import org.eclipse.ui.IMemento;
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import eu.etaxonomy.taxeditor.model.ContextListenerAdapter;
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import eu.etaxonomy.taxeditor.navigation.navigator.TaxonNavigator;
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/**
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* <p>NavigatorStateManager class.</p>
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*
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* @author n.hoffmann
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* @created Apr 1, 2010
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* @version 1.0
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*/
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public class NavigatorStateManager extends ContextListenerAdapter {
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/**
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* {@inheritDoc}
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*
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* Tries to restore the state of the taxon editor and the navigator when a context starts.
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*/
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@Override
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public void contextStart(IMemento memento, IProgressMonitor monitor) {
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TaxonNavigator navigator = NavigationUtil.getNavigator(true);
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if(navigator != null){
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navigator.init();
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navigator.restore(memento, monitor);
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}
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}
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/* (non-Javadoc)
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* @see eu.etaxonomy.taxeditor.model.ContextListenerAdapter#contextRefresh(org.eclipse.core.runtime.IProgressMonitor)
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*/
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@Override
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public void contextRefresh(IProgressMonitor monitor) {
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TaxonNavigator navigator = NavigationUtil.getNavigator(true);
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if(navigator != null){
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navigator.refresh();
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}
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}
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/**
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* {@inheritDoc}
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*
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* If the context
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*/
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@Override
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public void contextStop(IMemento memento, IProgressMonitor monitor) {
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saveNavigatorState(memento, monitor);
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clearNavigator();
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}
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/* (non-Javadoc)
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* @see eu.etaxonomy.taxeditor.model.ContextListenerAdapter#workbenchShutdown(org.eclipse.ui.IMemento, org.eclipse.core.runtime.IProgressMonitor)
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*/
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/** {@inheritDoc} */
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@Override
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public void workbenchShutdown(IMemento memento, IProgressMonitor monitor) {
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saveNavigatorState(memento, monitor);
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}
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/**
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* @param memento
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*/
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private void saveNavigatorState(IMemento memento, IProgressMonitor monitor) {
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TaxonNavigator navigator = NavigationUtil.getNavigator(false);
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if(navigator != null){
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navigator.save(memento, monitor);
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}
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}
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/**
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* Removes all content form the TaxonNavigator
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*/
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private void clearNavigator() {
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TaxonNavigator navigator = NavigationUtil.getNavigator(false);
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if(navigator != null){
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navigator.clear();
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}
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}
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}
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