Examples with ISelectionProvider org.eclipse.jface.viewers.ISelectionProvider used on opensource projects

Example 81 with ISelectionProvider

use of org.eclipse.jface.viewers.ISelectionProvider in project linuxtools by eclipse.

the class RPMHandlerUtils method getResource.

/**
 * Extract the IResource that was selected when the event was fired.
 * @param event The fired execution event.
 * @return The resource that was selected.
 */
public static IResource getResource(ExecutionEvent event) {
    IWorkbenchPart part = HandlerUtil.getActivePart(event);
    if (part == null) {
        return null;
    }
    if (part instanceof EditorPart) {
        IEditorInput input = ((EditorPart) part).getEditorInput();
        if (input instanceof IFileEditorInput) {
            return ((IFileEditorInput) input).getFile();
        }
        return null;
    }
    IWorkbenchSite site = part.getSite();
    if (site == null) {
        return null;
    }
    ISelectionProvider provider = site.getSelectionProvider();
    if (provider == null) {
        return null;
    }
    ISelection selection = provider.getSelection();
    if (selection instanceof IStructuredSelection) {
        Object element = ((IStructuredSelection) selection).getFirstElement();
        if (element instanceof IResource) {
            return (IResource) element;
        } else if (element instanceof IAdaptable) {
            IAdaptable adaptable = (IAdaptable) element;
            return adaptable.getAdapter(IResource.class);
        } else {
            return null;
        }
    }
    return null;
}

Example 82 with ISelectionProvider

use of org.eclipse.jface.viewers.ISelectionProvider in project knime-core by knime.

the class AbstractNodeAction method getSelectedObjects.

/**
 * {@inheritDoc}
 */
@Override
protected List getSelectedObjects() {
    ISelectionProvider provider = m_editor.getEditorSite().getSelectionProvider();
    if (provider == null) {
        return Collections.EMPTY_LIST;
    }
    ISelection sel = provider.getSelection();
    if (!(sel instanceof IStructuredSelection)) {
        return Collections.EMPTY_LIST;
    }
    return ((IStructuredSelection) sel).toList();
}

Example 83 with ISelectionProvider

use of org.eclipse.jface.viewers.ISelectionProvider in project knime-core by knime.

the class WorkflowCoachView method updateFrequencyColumnHeadersAndToolTips.

/**
 * Updates the names and tooltips of the frequency column headers.
 */
private void updateFrequencyColumnHeadersAndToolTips() {
    m_namesAndToolTips = NodeRecommendationManager.getInstance().getNodeTripleProviders().stream().filter(p -> p.isEnabled()).map(p -> new Pair<>(p.getName(), p.getDescription())).collect(Collectors.toList());
    if (m_namesAndToolTips == null || m_namesAndToolTips.isEmpty()) {
        updateInputNoProvider();
        return;
    }
    // reset table sorter
    IElementComparer sorter = m_viewer.getComparer();
    if (sorter != null && sorter instanceof TableColumnSorter) {
        ((TableColumnSorter) sorter).setColumn(null);
    }
    // enforce to change the viewer state to update the headers
    m_viewerState = null;
    m_lastSelection = "";
    changeViewerStateTo(ViewerState.RECOMMENDATIONS);
    // get current selection from the workbench and update the recommendation list
    IEditorPart activeEditor = getViewSite().getPage().getActiveEditor();
    if (activeEditor == null) {
        // if no workflow is opened
        updateInput(NO_WORKFLOW_OPENED_MESSAGE);
    } else {
        IWorkbenchPartSite site = activeEditor.getSite();
        if (site != null) {
            ISelectionProvider selectionProvider = site.getSelectionProvider();
            if (selectionProvider != null) {
                ISelection selection = selectionProvider.getSelection();
                if (selection != null && selection instanceof IStructuredSelection) {
                    updateInput(selection);
                    return;
                }
            }
        }
        updateInput(StructuredSelection.EMPTY);
    }
}