Examples of org.rssowl.ui.internal.util.ITreeNode

org.rssowl.ui.internal.util.ITreeNode
Implementors of ITreeNode provide methods to retrieve certain items from an underlying Tree-Structure. This Interface can be used in Algorithms that are working on Trees, like the Tree-Traversal-Algorithm. @author bpasero


    /* Selection is Present */
    if (respectSelection && tree.getSelectionCount() > 0) {


      /* Try navigating from Selection */
      ITreeNode startingNode = new WidgetTreeNode(tree.getSelection()[0], fNewsTableControl.getViewer());
      if (navigate(startingNode, next, unread))
        return true;
    }


    /* No Selection is Present */
    else {
      ITreeNode startingNode = new WidgetTreeNode(tree, fNewsTableControl.getViewer());
      return navigate(startingNode, true, unread);
    }


    return false;
  }

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        return isValidNavigation(node, unread);
      }
    };


    /* Retrieve and select new Target Node */
    ITreeNode targetNode = (next ? traverse.nextNode() : traverse.previousNode());
    if (targetNode != null) {
      ISelection selection = new StructuredSelection(targetNode.getData());
      fNewsTableControl.getViewer().setSelection(selection);
      return true;
    }


    return false;

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  /**
   * @throws Exception
   */
  @Test
  public void testTreeTraversalFromRootWithoutFilter() throws Exception {
    ITreeNode startingNode = getStartingNode(true);


    IFolder rootFolder = (IFolder) startingNode.getData();


    IFolder subRootFolder1 = rootFolder.getFolders().get(0);
    IBookMark subRoot1Mark1 = (IBookMark) subRootFolder1.getMarks().get(0);
    IBookMark subRoot1Mark2 = (IBookMark) subRootFolder1.getMarks().get(1);
    IFolder subRoot1Folder1 = subRootFolder1.getFolders().get(0);

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  /**
   * @throws Exception
   */
  @Test
  public void testTreeTraversalFromRootWithFilter() throws Exception {
    ITreeNode startingNode = getStartingNode(true);


    IFolder rootFolder = (IFolder) startingNode.getData();


    IFolder subRootFolder1 = rootFolder.getFolders().get(0);
    IBookMark subRoot1Mark1 = (IBookMark) subRootFolder1.getMarks().get(0);
    IBookMark subRoot1Mark2 = (IBookMark) subRootFolder1.getMarks().get(1);
    IFolder subRoot1Folder1 = subRootFolder1.getFolders().get(0);

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  /**
   * @throws Exception
   */
  @Test
  public void testTreeTraversalFromLeafWithoutFilter() throws Exception {
    ITreeNode startingNode = getStartingNode(false);


    IFolder rootFolder = ((IBookMark) startingNode.getData()).getParent().getParent().getParent().getParent();


    IFolder subRootFolder2 = rootFolder.getFolders().get(1);
    IBookMark subRoot2Mark1 = (IBookMark) subRootFolder2.getMarks().get(0);


    IFolder subRootFolder3 = rootFolder.getFolders().get(2);

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  /**
   * @throws Exception
   */
  @Test
  public void testTreeTraversalFromLeafWithFilter() throws Exception {
    ITreeNode startingNode = getStartingNode(false);


    IFolder rootFolder = ((IBookMark) startingNode.getData()).getParent().getParent().getParent().getParent();


    IFolder subRootFolder2 = rootFolder.getFolders().get(1);
    IBookMark subRoot2Mark1 = (IBookMark) subRootFolder2.getMarks().get(0);


    IFolder subRootFolder3 = rootFolder.getFolders().get(2);

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    /* Nothing to Navigate to */
    if (explorerTree.isDisposed())
      return false;


    ITreeNode targetNode = null;


    /* 1.) Navigate in opened Tree */
    targetNode = navigateInTree(explorerTree, next, unread);


    /* 2.) Navigate in BookMark-Sets */
    if (targetNode == null)
      targetNode = navigateInSets(next, unread);


    /* 3.) Finally, wrap in visible Tree if next */
    if (targetNode == null && next) {
      ITreeNode startingNode = new WidgetTreeNode(fViewer.getTree(), fViewer);
      targetNode = navigate(startingNode, next, unread);
    }


    /* Perform navigation if Node was found */
    if (targetNode != null) {

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      Activator.getDefault().getLog().log(e.getStatus());
    }
  }


  private ITreeNode navigateInTree(Tree tree, boolean next, boolean unread) {
    ITreeNode resultingNode = null;


    /* Selection is Present */
    if (tree.getSelectionCount() > 0) {


      /* Try navigating from Selection */
      ITreeNode startingNode = new WidgetTreeNode(tree.getSelection()[0], fViewer);
      resultingNode = navigate(startingNode, next, unread);
      if (resultingNode != null)
        return resultingNode;
    }


    /* No Selection is Present */
    else {
      ITreeNode startingNode = new WidgetTreeNode(tree, fViewer);
      resultingNode = navigate(startingNode, next, unread);
      if (resultingNode != null)
        return resultingNode;
    }

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    return resultingNode;
  }


  private ITreeNode navigateInSets(boolean next, boolean unread) {
    ITreeNode targetNode = null;


    /* Index of current visible Set */
    int index = getIndexOfRootFolder(fSelectedBookMarkSet);


    /* Look in next Sets */

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    return targetNode;
  }


  private ITreeNode navigateInSet(IFolder set, boolean next, boolean unread) {
    ITreeNode node = new ModelTreeNode(set);
    ITreeNode targetNode = navigate(node, next, unread);
    if (targetNode != null) {
      changeSet(set);
      return targetNode;
    }

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Related Classes of org.rssowl.ui.internal.util.ITreeNode

org.rssowl.core.tests.ui.TreeTraversalTest

org.rssowl.ui.internal.editors.feed.FeedView

org.rssowl.ui.internal.views.explorer.BookMarkExplorer

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