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FilteredTree it won't work in Eclipse Kepler [message #1115115]

Mon, 23 September 2013 13:35

Eclipse User

Hallo,

I like to use the FilteredTree in my e4 (Eclipse-Kepler) Project.

here is my Code:

@PostConstruct
public void postConstruct(Composite parent) {
		
  parent.setLayout(new GridLayout(1, false));
  FilteredTree filteredTree = new FilteredTree(parent, SWT.SINGLE | SWT.BORDER , new FolderFilter(), true);
  filteredTree.setQuickSelectionMode(true);
  filteredTree.setInitialText("Filter");
  viewer = filteredTree.getViewer();
  initViewer();

  status = new Label(parent, SWT.NONE);
  status.setLayoutData(new GridData(SWT.LEFT, SWT.CENTER, false, false, 4, 1));
  status.setText("Verzeichnisse gelesen");

}

The Text-Widget, for the Filtertext, is displayed, but when I type text into then Textfield nothing happens.

On Eclipse Indigo (View extends ViewPart) ist work fine.

What is wrong?

Greating
Ingo

Re: FilteredTree it won't work in Eclipse Kepler [message #1115918 is a reply to message #1115115]

Tue, 24 September 2013 15:32

Eclipse User

What does initViewer() do?

Re: FilteredTree it won't work in Eclipse Kepler [message #1116570 is a reply to message #1115918]

Wed, 25 September 2013 11:59

Eclipse User

Hi Nitin,

initViewer() do the following:

private void initViewer() {

        viewer.setContentProvider(new DMSTreeContentProvider());
	viewer.setLabelProvider(new DMSLabelProvider());
	viewer.setAutoExpandLevel(3);
	viewer.setInput(new FolderNode(-1, null));

	viewer.addDoubleClickListener(new IDoubleClickListener() {
		@Override
		public void doubleClick(DoubleClickEvent event) {
			TreeViewer viewer = (TreeViewer) event.getViewer();
			IStructuredSelection thisSelection = (IStructuredSelection) event.getSelection();
		        Object selectedNode = thisSelection.getFirstElement();
			viewer.setExpandedState(selectedNode, !viewer.getExpandedState(selectedNode));
	       }
       });

}

The Node-Model is this:

public class FolderNode extends DMSTreeNode {

	public FolderNode(int level, Folder folder) {
		super(level, folder);
	}

	public String toString() {
		return ((Folder) getValue()).getName();
	}
}

And the Folder-Model is this:

public class Folder {

	private String name;
	private int nr;

	public Folder() {
		setName("unkonwn");
		setNr(0);
	}

	public Folder( int nr, String name) {
		setNr(nr);
		setName(name);
	}

	public String getName() {
		return name;
	}

	public void setName(String name) {
		this.name = name;
	}

	public int getNr() {
		return nr;
	}

	public void setNr(int nr) {
		this.nr = nr;
	}

}

Greetings
Ingo

Re: FilteredTree it won't work in Eclipse Kepler [message #1353973 is a reply to message #1116570]

Wed, 14 May 2014 00:21

Eclipse User

I have the same problem.

FilteredTree internally uses WorkbenchJob:

protected WorkbenchJob doCreateRefreshJob() {
   return new WorkbenchJob("Refresh Filter") {
      ...
   };
}

In turn WorkbenchJob overrides shouldSchedule() method:

@Override
public boolean shouldSchedule() {
   return super.shouldSchedule() && PlatformUI.isWorkbenchRunning();
}

Oops!!! PlatformUI.isWorkbenchRunning() returns false! Job doesn't run.

I have no ideas. Sad

Re: FilteredTree it won't work in Eclipse Kepler [message #1355532 is a reply to message #1353973]

Wed, 14 May 2014 15:30

Eclipse User

The solution was found:

import org.eclipse.e4.ui.workbench.swt.internal.copy.FilteredTree;
import org.eclipse.e4.ui.workbench.swt.internal.copy.PatternFilter;

from org.eclipse.e4.ui.workbench.swt plugin.

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