Example usage for org.eclipse.jface.viewers StructuredSelection EMPTY

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In this page you can find the example usage for org.eclipse.jface.viewers StructuredSelection EMPTY.

Prototype

StructuredSelection EMPTY

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The canonical empty selection.

Usage

From source file:com.google.code.t4eclipse.tools.view.ToolBarAnalyzerView.java

License:Open Source License

public void update(CoolBar toolbar) {
    if (toolbar != null && !toolbar.isDisposed()) {
        // remove the following method will cause problem when reset input
        this.viewer.setSelection(StructuredSelection.EMPTY);
        this.viewer.setInput(toolbar);
    }//w  w w.  j av a2s.c o m

}

From source file:com.google.code.t4eclipse.tools.view.ToolBarAnalyzerView.java

License:Open Source License

public void update(ICoolBarManager toolbar) {
    if (toolbar != null) {
        this.viewer.setSelection(StructuredSelection.EMPTY);
        this.viewer.setInput(toolbar);
    }//from   w w  w. j av a 2  s . c o  m
}

From source file:com.google.dart.tools.ui.actions.AbstractOpenWizardAction.java

License:Open Source License

private IStructuredSelection evaluateCurrentSelection() {
    IWorkbenchWindow window = DartToolsPlugin.getActiveWorkbenchWindow();
    if (window != null) {
        ISelection selection = window.getSelectionService().getSelection();
        if (selection instanceof IStructuredSelection) {
            return (IStructuredSelection) selection;
        }//from  w w  w  .j  a  v a  2  s .  co  m
    }
    return StructuredSelection.EMPTY;
}

From source file:com.google.dart.tools.ui.callhierarchy.CallHierarchyUI.java

License:Open Source License

/**
 * Converts an ISelection (containing MethodWrapper instances) to an ISelection with the
 * MethodWrapper's replaced by their corresponding TypeMembers. If the selection contains elements
 * which are not MethodWrapper instances or not already TypeMember instances they are discarded.
 * /* w  w  w .  jav  a 2  s  . com*/
 * @param selection The selection to convert.
 * @return An ISelection containing TypeMember's in place of MethodWrapper instances.
 */
static ISelection convertSelection(ISelection selection) {
    if (selection.isEmpty()) {
        return selection;
    }

    if (selection instanceof IStructuredSelection) {
        IStructuredSelection structuredSelection = (IStructuredSelection) selection;
        List<DartElement> elements = new ArrayList<DartElement>();
        for (Iterator<?> iter = structuredSelection.iterator(); iter.hasNext();) {
            Object element = iter.next();
            if (element instanceof MethodWrapper) {
                DartElement member = ((MethodWrapper) element).getMember();
                if (member != null) {
                    elements.add(member);
                }
            } else if (element instanceof DartElement) {
                elements.add((DartElement) element);
            } else if (element instanceof CallLocation) {
                DartElement member = ((CallLocation) element).getMember();
                elements.add(member);
            }
        }
        return new StructuredSelection(elements);
    }
    return StructuredSelection.EMPTY;
}

From source file:com.google.dart.tools.ui.callhierarchy.CallHierarchyViewPart.java

License:Open Source License

/**
 * Returns the current selection.// www.j  a va 2s . co m
 * 
 * @return selection
 */
protected ISelection getSelection() {
    StructuredViewer viewerInFocus = selectionProviderMediator.getViewerInFocus();
    if (viewerInFocus != null) {
        return viewerInFocus.getSelection();
    }
    return StructuredSelection.EMPTY;
}

From source file:com.google.dart.tools.ui.internal.actions.SelectionConverter.java

License:Open Source License

/**
 * Converts the selection provided by the given part into a structured selection. The following
 * conversion rules are used:/*from w  w  w. ja  va  2s.  c  o m*/
 * <ul>
 * <li><code>part instanceof DartEditor</code>: returns a structured selection using code resolve
 * to convert the editor's text selection.</li>
 * <li><code>part instanceof IWorkbenchPart</code>: returns the part's selection if it is a
 * structured selection.</li>
 * <li><code>default</code>: returns an empty structured selection.</li>
 * </ul>
 */
public static IStructuredSelection getStructuredSelection(IWorkbenchPart part) throws DartModelException {
    if (part instanceof DartEditor) {
        return new StructuredSelection(codeResolve((DartEditor) part));
    }
    ISelectionProvider provider = part.getSite().getSelectionProvider();
    if (provider != null) {
        ISelection selection = provider.getSelection();
        if (selection instanceof IStructuredSelection) {
            return (IStructuredSelection) selection;
        }
    }
    return StructuredSelection.EMPTY;
}

From source file:com.google.dart.tools.ui.internal.text.editor.DartOutlinePage.java

License:Open Source License

@Override
public ISelection getSelection() {
    if (fOutlineViewer == null) {
        return StructuredSelection.EMPTY;
    }/*  ww w . ja v  a2  s .  co m*/
    return fOutlineViewer.getSelection();
}

From source file:com.google.dart.tools.ui.internal.text.editor.DartOutlinePage.java

License:Open Source License

public void select(SourceReference reference) {
    if (fOutlineViewer != null) {

        ISelection s = fOutlineViewer.getSelection();
        if (s instanceof IStructuredSelection) {
            IStructuredSelection ss = (IStructuredSelection) s;
            List<?> elements = ss.toList();
            if (!elements.contains(reference)) {
                s = (reference == null ? StructuredSelection.EMPTY : new StructuredSelection(reference));
                fOutlineViewer.setSelection(s, true);
            }//w  ww  . jav  a2s. c  o  m
        }
    }
}

From source file:com.google.dart.tools.ui.internal.text.editor.DartOutlinePage_NEW.java

License:Open Source License

@Override
public ISelection getSelection() {
    if (viewer == null) {
        return StructuredSelection.EMPTY;
    }
    return viewer.getSelection();
}

From source file:com.google.dart.tools.ui.internal.text.functions.AbstractInformationControl.java

License:Open Source License

/**
 * Selects the first element in the tree which matches the current filter pattern.
 *//*from w  ww.  j a v a 2  s. c  om*/
protected void selectFirstMatch() {
    Tree tree = fTreeViewer.getTree();
    Object element = findElement(tree.getItems());
    if (element != null) {
        fTreeViewer.setSelection(new StructuredSelection(element), true);
    } else {
        fTreeViewer.setSelection(StructuredSelection.EMPTY);
    }
}