/**
* <copyright>
* </copyright>
*
* $Id$
*/
package no.hal.jex.presentation;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Iterator;
import no.hal.jex.editor.actions.CreateChildrenFromJavaModelAction;
import no.hal.jex.editor.actions.CreateRequirementsFromJavaModelAction;
import no.hal.jex.ui.JexUiPlugin;
import org.eclipse.emf.common.ui.viewer.IViewerProvider;
import org.eclipse.emf.edit.domain.EditingDomain;
import org.eclipse.emf.edit.domain.IEditingDomainProvider;
import org.eclipse.emf.edit.ui.action.ControlAction;
import org.eclipse.emf.edit.ui.action.CreateChildAction;
import org.eclipse.emf.edit.ui.action.CreateSiblingAction;
import org.eclipse.emf.edit.ui.action.EditingDomainActionBarContributor;
import org.eclipse.emf.edit.ui.action.LoadResourceAction;
import org.eclipse.emf.edit.ui.action.ValidateAction;
import org.eclipse.jdt.core.Flags;
import org.eclipse.jface.action.Action;
import org.eclipse.jface.action.ActionContributionItem;
import org.eclipse.jface.action.IAction;
import org.eclipse.jface.action.IContributionItem;
import org.eclipse.jface.action.IContributionManager;
import org.eclipse.jface.action.IMenuListener;
import org.eclipse.jface.action.IMenuManager;
import org.eclipse.jface.action.IToolBarManager;
import org.eclipse.jface.action.MenuManager;
import org.eclipse.jface.action.Separator;
import org.eclipse.jface.action.SubContributionItem;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.jface.viewers.ISelectionChangedListener;
import org.eclipse.jface.viewers.ISelectionProvider;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.jface.viewers.SelectionChangedEvent;
import org.eclipse.jface.viewers.Viewer;
import org.eclipse.swt.events.FocusEvent;
import org.eclipse.swt.events.FocusListener;
import org.eclipse.swt.widgets.Text;
import org.eclipse.ui.IActionBars;
import org.eclipse.ui.IEditorPart;
import org.eclipse.ui.PartInitException;
import org.eclipse.ui.actions.TextActionHandler;
/**
* This is the action bar contributor for the Jex model editor.
* <!-- begin-user-doc -->
* <!-- end-user-doc -->
* @generated
*/
public class JexActionBarContributor
extends EditingDomainActionBarContributor
implements ISelectionChangedListener {
/**
* This keeps track of the active editor.
* <!-- begin-user-doc -->
* <!-- end-user-doc -->
* @generated
*/
protected IEditorPart activeEditorPart;
/**
* This keeps track of the current selection provider.
* <!-- begin-user-doc -->
* <!-- end-user-doc -->
* @generated
*/
protected ISelectionProvider selectionProvider;
/**
* This action opens the Properties view.
* <!-- begin-user-doc -->
* <!-- end-user-doc -->
* @generated
*/
protected IAction showPropertiesViewAction =
new Action(JexUiPlugin.INSTANCE.getString("_UI_ShowPropertiesView_menu_item")) {
@Override
public void run() {
try {
getPage().showView("org.eclipse.ui.views.PropertySheet");
}
catch (PartInitException exception) {
JexUiPlugin.INSTANCE.log(exception);
}
}
};
/**
* This action refreshes the viewer of the current editor if the editor
* implements {@link org.eclipse.emf.common.ui.viewer.IViewerProvider}.
* <!-- begin-user-doc -->
* <!-- end-user-doc -->
* @generated
*/
protected IAction refreshViewerAction =
new Action(JexUiPlugin.INSTANCE.getString("_UI_RefreshViewer_menu_item")) {
@Override
public boolean isEnabled() {
return activeEditorPart instanceof IViewerProvider;
}
@Override
public void run() {
if (activeEditorPart instanceof IViewerProvider) {
Viewer viewer = ((IViewerProvider)activeEditorPart).getViewer();
if (viewer != null) {
viewer.refresh();
}
}
}
};
/**
* This will contain one {@link org.eclipse.emf.edit.ui.action.CreateChildAction} corresponding to each descriptor
* generated for the current selection by the item provider.
* <!-- begin-user-doc -->
* <!-- end-user-doc -->
* @generated
*/
protected Collection<IAction> createChildActions;
/**
* This is the menu manager into which menu contribution items should be added for CreateChild actions.
* <!-- begin-user-doc -->
* <!-- end-user-doc -->
* @generated
*/
protected IMenuManager createChildMenuManager;
/**
* This will contain one {@link org.eclipse.emf.edit.ui.action.CreateSiblingAction} corresponding to each descriptor
* generated for the current selection by the item provider.
* <!-- begin-user-doc -->
* <!-- end-user-doc -->
* @generated
*/
protected Collection<IAction> createSiblingActions;
/**
* This is the menu manager into which menu contribution items should be added for CreateSibling actions.
* <!-- begin-user-doc -->
* <!-- end-user-doc -->
* @generated
*/
protected IMenuManager createSiblingMenuManager;
/**
* This creates an instance of the contributor.
* <!-- begin-user-doc -->
* <!-- end-user-doc -->
* @generated
*/
public JexActionBarContributor() {
super(ADDITIONS_LAST_STYLE);
loadResourceAction = new LoadResourceAction();
validateAction = new ValidateAction();
controlAction = new ControlAction();
}
/**
* This adds Separators for editor additions to the tool bar.
* <!-- begin-user-doc -->
* <!-- end-user-doc -->
* @generated
*/
@Override
public void contributeToToolBar(IToolBarManager toolBarManager) {
toolBarManager.add(new Separator("jex-settings"));
toolBarManager.add(new Separator("jex-additions"));
}
/**
* This adds to the menu bar a menu and some separators for editor additions,
* as well as the sub-menus for object creation items.
* <!-- begin-user-doc -->
* <!-- end-user-doc -->
* @NOT generated
*/
@Override
public void contributeToMenu(IMenuManager menuManager) {
super.contributeToMenu(menuManager);
IMenuManager submenuManager = new MenuManager(JexUiPlugin.INSTANCE.getString("_UI_JexEditor_menu"), "no.hal.jex.exMenuID");
menuManager.insertAfter("additions", submenuManager);
submenuManager.add(new Separator("settings"));
submenuManager.add(new Separator("actions"));
submenuManager.add(new Separator("additions"));
submenuManager.add(new Separator("additions-end"));
// Prepare for CreateChild item addition or removal.
//
// createChildMenuManager = new MenuManager(JexEditorPlugin.INSTANCE.getString("_UI_CreateChild_menu_item"));
// submenuManager.insertBefore("additions", createChildMenuManager);
createChildMenuManager = submenuManager;
// Force an update because Eclipse hides empty menus now.
//
submenuManager.addMenuListener
(new IMenuListener() {
public void menuAboutToShow(IMenuManager menuManager) {
menuManager.updateAll(true);
}
});
addGlobalActions(submenuManager);
}
/**
* When the active editor changes, this remembers the change and registers with it as a selection provider.
* <!-- begin-user-doc -->
* <!-- end-user-doc -->
* @generated
*/
@Override
public void setActiveEditor(IEditorPart part) {
super.setActiveEditor(part);
activeEditorPart = part;
// Switch to the new selection provider.
//
if (selectionProvider != null) {
selectionProvider.removeSelectionChangedListener(this);
}
if (part == null) {
selectionProvider = null;
}
else {
selectionProvider = part.getSite().getSelectionProvider();
selectionProvider.addSelectionChangedListener(this);
// Fake a selection changed event to update the menus.
//
if (selectionProvider.getSelection() != null) {
selectionChanged(new SelectionChangedEvent(selectionProvider, selectionProvider.getSelection()));
}
}
}
/**
* This implements {@link org.eclipse.jface.viewers.ISelectionChangedListener},
* handling {@link org.eclipse.jface.viewers.SelectionChangedEvent}s by querying for the children and siblings
* that can be added to the selected object and updating the menus accordingly.
* <!-- begin-user-doc -->
* <!-- end-user-doc -->
* @NOT generated
*/
public void selectionChanged(SelectionChangedEvent event) {
// Remove any menu items for old selection.
//
if (createChildMenuManager != null) {
depopulateManager(createChildMenuManager, createChildActions);
}
// Query the new selection for appropriate new child descriptors
//
Collection<?> newChildDescriptors = null;
ISelection selection = event.getSelection();
if (selection instanceof IStructuredSelection && ((IStructuredSelection)selection).size() == 1) {
Object object = ((IStructuredSelection)selection).getFirstElement();
EditingDomain domain = ((IEditingDomainProvider)activeEditorPart).getEditingDomain();
newChildDescriptors = domain.getNewChildDescriptors(object, null);
}
// Generate actions for selection; populate and redraw the menus.
//
createChildActions = generateCreateChildActions(newChildDescriptors, selection);
if (createChildMenuManager != null) {
// populateManager(createChildMenuManager, createChildActions, null);
createChildMenuManager.update(true);
}
}
/**
* This generates a {@link org.eclipse.emf.edit.ui.action.CreateChildAction} for each object in <code>descriptors</code>,
* and returns the collection of these actions.
* <!-- begin-user-doc -->
* <!-- end-user-doc -->
* @NOT generated
*/
protected Collection<IAction> generateCreateChildActions(Collection<?> descriptors, ISelection selection) {
Collection<IAction> actions = new ArrayList<IAction>();
if (descriptors != null) {
for (Iterator<?> it = descriptors.iterator(); it.hasNext(); ) {
actions.add(new CreateChildAction(activeEditorPart, selection, it.next()));
}
}
actions.add(new CreateChildrenFromJavaModelAction(activeEditorPart, selection, Flags.AccPublic, false));
actions.add(new CreateChildrenFromJavaModelAction(activeEditorPart, selection, Flags.AccPublic, true));
actions.add(new CreateRequirementsFromJavaModelAction(activeEditorPart, selection, false));
actions.add(new CreateRequirementsFromJavaModelAction(activeEditorPart, selection, true));
return actions;
}
/**
* This generates a {@link org.eclipse.emf.edit.ui.action.CreateSiblingAction} for each object in <code>descriptors</code>,
* and returns the collection of these actions.
* <!-- begin-user-doc -->
* <!-- end-user-doc -->
* @generated
*/
protected Collection<IAction> generateCreateSiblingActions(Collection<?> descriptors, ISelection selection) {
Collection<IAction> actions = new ArrayList<IAction>();
if (descriptors != null) {
for (Object descriptor : descriptors) {
actions.add(new CreateSiblingAction(activeEditorPart, selection, descriptor));
}
}
return actions;
}
/**
* This populates the specified <code>manager</code> with {@link org.eclipse.jface.action.ActionContributionItem}s
* based on the {@link org.eclipse.jface.action.IAction}s contained in the <code>actions</code> collection,
* by inserting them before the specified contribution item <code>contributionID</code>.
* If <code>contributionID</code> is <code>null</code>, they are simply added.
* <!-- begin-user-doc -->
* <!-- end-user-doc -->
* @generated
*/
protected void populateManager(IContributionManager manager, Collection<? extends IAction> actions, String contributionID) {
if (actions != null) {
for (IAction action : actions) {
if (contributionID != null) {
manager.insertBefore(contributionID, action);
}
else {
manager.add(action);
}
}
}
}
/**
* This removes from the specified <code>manager</code> all {@link org.eclipse.jface.action.ActionContributionItem}s
* based on the {@link org.eclipse.jface.action.IAction}s contained in the <code>actions</code> collection.
* <!-- begin-user-doc -->
* <!-- end-user-doc -->
* @generated
*/
protected void depopulateManager(IContributionManager manager, Collection<? extends IAction> actions) {
if (actions != null) {
IContributionItem[] items = manager.getItems();
for (int i = 0; i < items.length; i++) {
// Look into SubContributionItems
//
IContributionItem contributionItem = items[i];
while (contributionItem instanceof SubContributionItem) {
contributionItem = ((SubContributionItem)contributionItem).getInnerItem();
}
// Delete the ActionContributionItems with matching action.
//
if (contributionItem instanceof ActionContributionItem) {
IAction action = ((ActionContributionItem)contributionItem).getAction();
if (actions.contains(action)) {
manager.remove(contributionItem);
}
}
}
}
}
/**
* This populates the pop-up menu before it appears.
* <!-- begin-user-doc -->
* <!-- end-user-doc -->
* @NOT generated
*/
@Override
public void menuAboutToShow(IMenuManager menuManager) {
super.menuAboutToShow(menuManager);
// MenuManager submenuManager = null;
//
// submenuManager = new MenuManager(JexEditorPlugin.INSTANCE.getString("_UI_CreateChild_menu_item"));
// populateManager(submenuManager, createChildActions, null);
// menuManager.insertBefore("edit", submenuManager);
populateManager(menuManager, createChildActions, "edit");
}
/**
* This inserts global actions before the "additions-end" separator.
* <!-- begin-user-doc -->
* <!-- end-user-doc -->
* @generated
*/
@Override
protected void addGlobalActions(IMenuManager menuManager) {
menuManager.insertAfter("additions-end", new Separator("ui-actions"));
menuManager.insertAfter("ui-actions", showPropertiesViewAction);
refreshViewerAction.setEnabled(refreshViewerAction.isEnabled());
menuManager.insertAfter("ui-actions", refreshViewerAction);
super.addGlobalActions(menuManager);
}
/**
* This ensures that a delete action will clean up all references to deleted objects.
* <!-- begin-user-doc -->
* <!-- end-user-doc -->
* @generated
*/
@Override
protected boolean removeAllReferencesOnDelete() {
return true;
}
// handle Text actions properly
private TextActionHandler textActionHandler;
@Override
public void init(IActionBars actionBars) {
super.init(actionBars);
textActionHandler = new TextActionHandler(actionBars);
textActionHandler.setDeleteAction(deleteAction);
textActionHandler.setCutAction(cutAction);
textActionHandler.setCopyAction(copyAction);
textActionHandler.setPasteAction(pasteAction);
}
void registerTextControl(final Text textControl) {
textControl.addFocusListener(new FocusListener() {
public void focusGained(FocusEvent e) {
textActionHandler.addText(textControl);
}
public void focusLost(FocusEvent e) {
textActionHandler.removeText(textControl);
}
});
}
}