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.

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StructuredSelection EMPTY

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The canonical empty selection.

Usage

From source file:com.netxforge.screens.editing.base.AbstractScreenImpl.java

License:Open Source License

/**
 * We are the {@link ISelectionProvider} for non IStructuredSelection. As
 * non-structured viewer selections do not implement the JFace
 * ISelectionProvider interface. </br> Clients should call
 * {@link #registerFocus(Control)} to make sure
 * //from   w ww.j av a  2 s. c  o  m
 */
public ISelection getSelection() {
    if (currentFocusWidget instanceof Text) {
        Text t = (Text) currentFocusWidget;
        t.getSelectionText();
    }

    ISelectionProvider currentSelectionProvider = this.resolveSelectionProviderFromWidget(currentFocusWidget);
    if (currentSelectionProvider != null) {
        return currentSelectionProvider.getSelection();
    }
    return StructuredSelection.EMPTY;
}

---

From source file:com.netxforge.screens.editing.base.AbstractScreensViewPart.java

License:Open Source License

/**
 * Call from which ever screen with multiple viewers which can/should
 * provide selection./*  ww  w  .  ja  v  a 2 s  .  c  o  m*/
 * 
 * @param viewer
 */
public void setCurrentScreen(IScreen screen) {

    if (selectionChangedListener == null) {
        // Create the listener on demand.
        //
        selectionChangedListener = new ISelectionChangedListener() {
            // This just notifies those things that are affected by the
            // section.
            //
            public void selectionChanged(SelectionChangedEvent selectionChangedEvent) {
                setSelection(selectionChangedEvent);
            }
        };
    }

    // Stop listening to the old one.
    //
    if (getScreen() != null) {
        getScreen().removeSelectionChangedListener(selectionChangedListener);
    }

    // Start listening to the new one.
    //
    if (screen != null) {
        screen.addSelectionChangedListener(selectionChangedListener);
    }

    // Set the editors selection based on the current screen's
    // selection.
    setSelection(screen == null ? StructuredSelection.EMPTY : screen.getSelection());

    Viewer viewer = screen.getViewer();
    if (viewer instanceof StructuredViewer) {
        // Don't do that yet, as we have no facility to learn the
        // existing menu items.
        augmentContextMenuFor((StructuredViewer) viewer);
    }

    // Install a menu on the active viewers.
    // for (Viewer v : screen.getViewers()) {
    // // Install a context menu, for all possible viewers, note
    // // all actions will be installed, we don't differentiate which
    // // actions are added to which viewer.
    // if (v instanceof StructuredViewer) {
    // // Don't do that yet, as we have no facility to learn the
    // // existing menu items.
    // augmentContextMenuFor((StructuredViewer) v);
    // }
    // }
}

---

From source file:com.netxforge.screens.editing.base.AbstractScreensViewPart.java

License:Open Source License

/**
 * Call from which ever screen with a view which can/should provide
 * selection.// w  w w .  j  av  a  2 s.  co m
 * 
 * @param viewer
 * @deprecated Use setCurrentScreen instead.
 */
public void setCurrentViewer(Viewer viewer) {
    if (currentViewer != viewer) {
        if (selectionChangedListener == null) {
            // Create the listener on demand.
            //
            selectionChangedListener = new ISelectionChangedListener() {
                // This just notifies those things that are affected by the
                // section.
                //
                public void selectionChanged(SelectionChangedEvent selectionChangedEvent) {
                    setSelection(selectionChangedEvent.getSelection());
                }
            };
        }

        // Stop listening to the old one.
        //
        if (currentViewer != null) {
            currentViewer.removeSelectionChangedListener(selectionChangedListener);
        }

        // Start listening to the new one.
        //
        if (viewer != null) {
            viewer.addSelectionChangedListener(selectionChangedListener);
        }

        // Remember it.
        //
        currentViewer = viewer;

        // Set the editors selection based on the current viewer's
        // selection.
        //
        setSelection(currentViewer == null ? StructuredSelection.EMPTY : currentViewer.getSelection());

        // Install a context menu.
        if (currentViewer instanceof StructuredViewer) {
            // Don't do that yet, as we have no facility to learn the
            // existing menu items.
            augmentContextMenuFor((StructuredViewer) viewer);
        }
    }
}

---

From source file:com.netxforge.screens.editing.base.actions.BaseSelectionListenerAction.java

License:Open Source License

/**
 * The <code>BaseSelectionListenerAction</code> implementation of this
 * <code>ISelectionChangedListener</code> method calls
 * <code>selectionChanged(IStructuredSelection)</code> assuming the
 * selection is a structured one. Subclasses should override the
 * <code>updateSelection</code> method to react to selection changes.
 */// ww w.ja v  a 2s .c  om
public void selectionChanged(SelectionChangedEvent event) {
    this.event = event;
    ISelection selection = event.getSelection();
    if (selection instanceof IStructuredSelection) {
        selectionChanged((IStructuredSelection) selection);
    } else {
        selectionChanged(StructuredSelection.EMPTY);
    }
}

---

From source file:com.nextep.designer.vcs.ui.navigators.NavigatorLinkHelper.java

License:Open Source License

@Override
public IStructuredSelection findSelection(IEditorInput anInput) {
    if (anInput instanceof IModelOriented<?>) {
        IStructuredSelection s = new StructuredSelection(((IModelOriented<?>) anInput).getModel());
        return s;
    }//from w w  w. j  a v a 2  s .  c o m
    return StructuredSelection.EMPTY;
}

---

From source file:com.nextep.designer.vcs.ui.views.DiffPreviewView.java

License:Open Source License

@Override
public void createPartControl(Composite parent) {
    tree = new Tree(parent, SWT.FULL_SELECTION);
    tree.addListener(SWT.MouseDoubleClick, this);
    tree.setHeaderVisible(true);/*from w w  w  . j  a v  a 2  s  .com*/
    final TreeColumn objCol = new TreeColumn(tree, SWT.NONE);
    objCol.setText(VCSUIMessages.getString("comparison.view.colObjectName"));
    objCol.setWidth(250);
    final TreeColumn diffType = new TreeColumn(tree, SWT.NONE);
    diffType.setText(VCSUIMessages.getString("comparison.view.colDiffType"));
    diffType.setWidth(50);
    diffType.setAlignment(SWT.CENTER);
    final TreeColumn diffTarget = new TreeColumn(tree, SWT.NONE);
    diffTarget.setText(VCSUIMessages.getString("comparison.view.colTargetName"));
    diffTarget.setWidth(250);

    initializeTree();
    selectionProvider = new AbstractSelectionProvider() {

        @Override
        public ISelection getSelection() {
            TreeItem[] selItems = tree.getSelection();
            if (selItems.length > 0) {
                final Object o = selItems[0].getData();
                if (o instanceof IModelOriented<?>) {
                    return new StructuredSelection(((IModelOriented<?>) o).getModel());
                } else {
                    return new StructuredSelection(o);
                }
            }
            return StructuredSelection.EMPTY;
        }
    };
    tree.addSelectionListener(selectionProvider);
    registerContextMenu();
    getSite().setSelectionProvider(selectionProvider);
}

---

From source file:com.nokia.carbide.internal.discovery.ui.extension.AbstractDiscoveryPortalPageLayer.java

License:Open Source License

protected IAction[] makeActions(final IEditorPart part) {
    this.part = part;
    selectionListeners = new ArrayList<ISelectionChangedListener>();
    List<IAction> actions = new ArrayList<IAction>();
    IAction action;//  www .ja v a2  s.co m

    // install
    action = new BaseSelectionListenerAction(Messages.AbstractDiscoveryPortalPageLayer_InstallActionLabel) {
        public void run() {
            installCatalogItems(viewer.getCheckedItems());
        };

        protected boolean updateSelection(IStructuredSelection selection) {
            scheduleUpdateAllActionUIs();
            return !selection.isEmpty();
        };
    };
    action.setToolTipText(Messages.AbstractDiscoveryPortalPageLayer_InstallActionTooltip);
    action.setId(INSTALL_ACTION_ID);
    selectionListeners.add((ISelectionChangedListener) action);
    actions.add(action);

    // refresh
    action = new Action(Messages.AbstractDiscoveryPortalPageLayer_RefreshActionLabel) {
        public void run() {
            viewer.setSelection(StructuredSelection.EMPTY);
            viewer.updateCatalog();
            viewer.refresh();
        }
    };
    action.setId(REFRESH_ACTION_ID);
    actions.add(action);

    // check all
    action = new BaseSelectionListenerAction(Messages.AbstractDiscoveryPortalPageLayer_CheckAllActionLabel) {
        public void run() {
            viewer.setSelection(StructuredSelection.EMPTY);
            viewer.setSelection(getAllItemsSelection());
            viewer.refresh();
        }

        private IStructuredSelection getAllItemsSelection() {
            List<CatalogItem> catalogItems = new ArrayList<CatalogItem>();
            for (CatalogItem catalogItem : viewer.getCatalog().getItems()) {
                if (!catalogItem.isInstalled())
                    catalogItems.add(catalogItem);
            }
            return new StructuredSelection(catalogItems);
        }

        protected boolean updateSelection(IStructuredSelection selection) {
            scheduleUpdateAllActionUIs();
            return !getAllItemsSelection().equals(selection);
        }
    };
    action.setId(CHECK_ALL_ACTION_ID);
    selectionListeners.add((ISelectionChangedListener) action);
    actions.add(action);

    // uncheck all
    action = new BaseSelectionListenerAction(Messages.AbstractDiscoveryPortalPageLayer_UncheckAllActionLabel) {
        public void run() {
            viewer.setSelection(StructuredSelection.EMPTY);
            viewer.refresh();
        };

        protected boolean updateSelection(IStructuredSelection selection) {
            scheduleUpdateAllActionUIs();
            return !selection.isEmpty();
        };
    };
    action.setId(UNCHECK_ALL_ACTION_ID);
    selectionListeners.add((ISelectionChangedListener) action);
    actions.add(action);

    // advanced install
    action = new Action(Messages.AbstractDiscoveryPortalPageLayer_AdvancedInstallActionLabel) {
        public void run() {
            showInstallWizard();
        }
    };
    action.setId(ADV_INSTALL_ACTION_ID);
    actions.add(action);

    ISelectionChangedListener selectionListener = new ISelectionChangedListener() {
        @Override
        public void selectionChanged(SelectionChangedEvent event) {
            IStructuredSelection selection = (IStructuredSelection) event.getSelection();
            IActionBars bars = part.getEditorSite().getActionBars();
            bars.getStatusLineManager()
                    .setMessage(selection.isEmpty() ? null
                            : MessageFormat.format(
                                    Messages.AbstractDiscoveryPortalPageLayer_CheckedItemsStatusMessage,
                                    selection.size()));
        }
    };
    selectionListeners.add(selectionListener);

    return (IAction[]) actions.toArray(new IAction[actions.size()]);
}

---

From source file:com.nokia.carbide.internal.discovery.ui.view.InstallExtensionsPortalExtension.java

License:Open Source License

private void showWizard(IWorkbenchWizard wizard) {
    wizard.init(PlatformUI.getWorkbench(), StructuredSelection.EMPTY);
    WizardDialog dialog = new WizardDialog(part.getEditorSite().getShell(), wizard);
    dialog.setMinimumPageSize(550, 250);
    dialog.create();/*from  ww w.  j ava 2s  .c  om*/
    dialog.open();
}

---

From source file:com.nokia.carbide.trk.support.connection.SerialConnectionFactory.java

License:Open Source License

private void putSettingsToUI() {
    Map<String, String> map = settings.getSettings();
    for (String key : map.keySet()) {
        ComboViewer viewer = viewers.get(key);
        if (viewer != null) {
            String element = map.get(key);
            viewer.setSelection(element != null ? new StructuredSelection(element) : StructuredSelection.EMPTY);
        }//  w  w  w.java 2  s  .  c om
    }
}

---

From source file:com.nokia.s60ct.cenrep.gui.Actions.NewRepositoryAction.java

License:Open Source License

public void run(IAction action) {
    NewRepositoryWizard wizard = new NewRepositoryWizard();
    wizard.init(getWindow().getWorkbench(), StructuredSelection.EMPTY);
    WizardDialog wizardDialog = new WizardDialog(getWindow().getShell(), wizard);
    wizardDialog.open();// w  w w  .  j ava2  s.c  o m
}

---

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