org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/actions/OccurrencesSearchMenuAction.java - jdt/eclipse.jdt.ui - Git at Google

 /*******************************************************************************
  * Copyright (c) 2000, 2009 IBM Corporation and others.
  * All rights reserved. This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License v1.0
  * which accompanies this distribution, and is available at
  * http://www.eclipse.org/legal/epl-v10.html
  *
  * Contributors:
  *     IBM Corporation - initial API and implementation
  *******************************************************************************/
 package org.eclipse.jdt.internal.ui.actions;

 import java.util.ArrayList;
 import java.util.List;

 import org.eclipse.swt.events.MenuAdapter;
 import org.eclipse.swt.events.MenuEvent;
 import org.eclipse.swt.widgets.Control;
 import org.eclipse.swt.widgets.Menu;
 import org.eclipse.swt.widgets.MenuItem;

 import org.eclipse.jface.action.Action;
 import org.eclipse.jface.action.ActionContributionItem;
 import org.eclipse.jface.action.IAction;
 import org.eclipse.jface.action.IMenuManager;
 import org.eclipse.jface.viewers.ISelection;

 import org.eclipse.jface.text.IDocument;
 import org.eclipse.jface.text.ITextSelection;

 import org.eclipse.ui.IPartService;
 import org.eclipse.ui.IWorkbenchPart;
 import org.eclipse.ui.IWorkbenchWindow;
 import org.eclipse.ui.IWorkbenchWindowPulldownDelegate2;
 import org.eclipse.ui.actions.RetargetAction;

 import org.eclipse.jdt.core.ITypeRoot;

 import org.eclipse.jdt.ui.JavaUI;
 import org.eclipse.jdt.ui.actions.IJavaEditorActionDefinitionIds;
 import org.eclipse.jdt.ui.actions.JdtActionConstants;
 import org.eclipse.jdt.ui.actions.SelectionDispatchAction;

 import org.eclipse.jdt.internal.ui.JavaPlugin;
 import org.eclipse.jdt.internal.ui.javaeditor.JavaEditor;
 import org.eclipse.jdt.internal.ui.javaeditor.JavaTextSelection;

 /**
  * <p>
  * This is required because of
  * https://bugs.eclipse.org/bugs/show_bug.cgi?id=79162
  * and
  * https://bugs.eclipse.org/bugs/show_bug.cgi?id=137679
  * </p>
  */
 public class OccurrencesSearchMenuAction implements IWorkbenchWindowPulldownDelegate2 {

 	private static Action NO_ACTION_AVAILABLE= new Action(ActionMessages.OccurrencesSearchMenuAction_no_entries_available) {
 		@Override
 		public boolean isEnabled() {
 			return false;
 		}
 	};

 	private Menu fMenu;

 	private IPartService fPartService;
 	private RetargetAction[] fRetargetActions;

 	/**
 	 * {@inheritDoc}
 	 */
 	public Menu getMenu(Menu parent) {
 		setMenu(new Menu(parent));
 		fillMenu(fMenu);
 		initMenu(fMenu);
 		return fMenu;
 	}

 	/**
 	 * {@inheritDoc}
 	 */
 	public Menu getMenu(Control parent) {
 		setMenu(new Menu(parent));
 		fillMenu(fMenu);
 		initMenu(fMenu);
 		return fMenu;
 	}

 	protected void initMenu(Menu menu) {
 		menu.addMenuListener(new MenuAdapter() {
 			@Override
 			public void menuShown(MenuEvent e) {
 				Menu m= (Menu) e.widget;
 				MenuItem[] items= m.getItems();
 				for (int i= 0; i < items.length; i++) {
 					items[i].dispose();
 				}
 				fillMenu(m);
 			}
 		});
 	}

 	/**
 	 * {@inheritDoc}
 	 */
 	public void dispose() {
 		setMenu(null);
 		disposeSubmenuActions();
 	}

 	private RetargetAction createSubmenuAction(IPartService partService, String actionID, String text, String actionDefinitionId) {
 		RetargetAction action= new RetargetAction(actionID, text);
 		action.setActionDefinitionId(actionDefinitionId);

 		partService.addPartListener(action);
 		IWorkbenchPart activePart = partService.getActivePart();
 		if (activePart != null) {
 			action.partActivated(activePart);
 		}
 		return action;
 	}

 	private void disposeSubmenuActions() {
 		if (fPartService != null && fRetargetActions != null) {
 			for (int i= 0; i < fRetargetActions.length; i++) {
 				fPartService.removePartListener(fRetargetActions[i]);
 				fRetargetActions[i].dispose();
 			}
 		}
 		fRetargetActions= null;
 		fPartService= null;
 	}

 	/**
 	 * {@inheritDoc}
 	 */
 	public void init(IWorkbenchWindow window) {
 		disposeSubmenuActions(); // paranoia code: double initialization should not happen
 		if (window != null) {
 			fPartService= window.getPartService();
 			if (fPartService != null) {
 				fRetargetActions= new RetargetAction[] {
 					createSubmenuAction(fPartService, JdtActionConstants.FIND_OCCURRENCES_IN_FILE, ActionMessages.OccurrencesSearchMenuAction_occurrences_in_file_label, IJavaEditorActionDefinitionIds.SEARCH_OCCURRENCES_IN_FILE),
 					createSubmenuAction(fPartService, JdtActionConstants.FIND_IMPLEMENT_OCCURRENCES, ActionMessages.OccurrencesSearchMenuAction_implementing_methods_label, IJavaEditorActionDefinitionIds.SEARCH_IMPLEMENT_OCCURRENCES_IN_FILE),
 					createSubmenuAction(fPartService, JdtActionConstants.FIND_EXCEPTION_OCCURRENCES, ActionMessages.OccurrencesSearchMenuAction_throwing_exception_label, IJavaEditorActionDefinitionIds.SEARCH_EXCEPTION_OCCURRENCES_IN_FILE),
 					createSubmenuAction(fPartService, JdtActionConstants.FIND_METHOD_EXIT_OCCURRENCES, ActionMessages.OccurrencesSearchMenuAction_method_exits_label, IJavaEditorActionDefinitionIds.SEARCH_METHOD_EXIT_OCCURRENCES),
 					createSubmenuAction(fPartService, JdtActionConstants.FIND_BREAK_CONTINUE_TARGET_OCCURRENCES, ActionMessages.OccurrencesSearchMenuAction_break_continue_target_label, IJavaEditorActionDefinitionIds.SEARCH_BREAK_CONTINUE_TARGET_OCCURRENCES)
 				};
 			}
 		}
 	}

 	/**
 	 * {@inheritDoc}
 	 */
 	public void run(IAction a) {
 		if (fRetargetActions == null)
 			return;

 		JavaEditor editor;
 		ISelection selection;

 		IWorkbenchPart activePart= JavaPlugin.getActivePage().getActivePart();
 		if (activePart instanceof JavaEditor) {
 			selection= getEditorSelection((JavaEditor) activePart);
 			if (selection == null)
 				return;

 			if (selection instanceof ITextSelection) {
 				editor= (JavaEditor) activePart;
 			} else {
 				editor= null;
 			}
 		} else {
 			editor= null;
 			selection= activePart.getSite().getSelectionProvider().getSelection();
 		}

 		final ArrayList<IAction> activeActions= new ArrayList<IAction>(fRetargetActions.length);
 		for (int i= 0; i < fRetargetActions.length; i++) {
 			RetargetAction action= fRetargetActions[i];
 			IAction actionHandler= action.getActionHandler();
 			if (actionHandler instanceof SelectionDispatchAction) {
 				((SelectionDispatchAction) actionHandler).update(selection);
 				if (actionHandler.isEnabled()) {
 					activeActions.add(actionHandler);
 				}
 			}
 		}
 		if (activeActions.size() == 1) {
 			activeActions.get(0).run();
 		} else {
 			new JDTQuickMenuCreator(editor) {
 				@Override
 				protected void fillMenu(IMenuManager menu) {
 					fillQuickMenu(menu, activeActions);
 				}
 			}.createMenu();
 		}
 	}

 	private void updateActions() {
 		IWorkbenchPart activePart= JavaPlugin.getActivePage().getActivePart();
 		if (!(activePart instanceof JavaEditor))
 			return;

 		ISelection javaSelection= getEditorSelection((JavaEditor) activePart);
 		if (javaSelection == null)
 			return;

 		for (int i= 0; i < fRetargetActions.length; i++) {
 			RetargetAction action= fRetargetActions[i];
 			IAction actionHandler= action.getActionHandler();
 			if (actionHandler instanceof SelectionDispatchAction) {
 				((SelectionDispatchAction) actionHandler).update(javaSelection);
 			}
 		}
 	}

 	private ISelection getEditorSelection(JavaEditor editor) {
 		ITypeRoot element= SelectionConverter.getInput(editor);
 		if (element == null)
 			return null;

 		if (editor.isBreadcrumbActive())
 			return editor.getBreadcrumb().getSelectionProvider().getSelection();
 		else {
 			ITextSelection textSelection= (ITextSelection) editor.getSelectionProvider().getSelection();
 			IDocument document= JavaUI.getDocumentProvider().getDocument(editor.getEditorInput());
 			return new JavaTextSelection(element, document, textSelection.getOffset(), textSelection.getLength());
 		}
 	}


 	/**
 	 * {@inheritDoc}
 	 */
 	public void selectionChanged(IAction action, ISelection selection) {
 	}

 	private void fillQuickMenu(IMenuManager manager, List<IAction> activeActions) {
 		if (activeActions.isEmpty()) {
 			manager.add(NO_ACTION_AVAILABLE);
 		} else {
 			for (int i= 0; i < activeActions.size(); i++) {
 				manager.add(activeActions.get(i));
 			}
 		}
 	}

 	/**
 	 * The menu to show in the workbench menu
 	 * @param menu the menu to fill
 	 */
 	public void fillMenu(Menu menu) {
 		if (fRetargetActions != null) {
 			updateActions();
 			for (int i= 0; i < fRetargetActions.length; i++) {
 				ActionContributionItem item= new ActionContributionItem(fRetargetActions[i]);
 				item.fill(menu, -1);
 			}
 		} else {
 			// can only happen if 'init' was not called: programming error
 			ActionContributionItem item= new ActionContributionItem(NO_ACTION_AVAILABLE);
 			item.fill(menu, -1);
 		}
 	}

 	private void setMenu(Menu menu) {
 		if (fMenu != null) {
 			fMenu.dispose();
 		}
 		fMenu = menu;
 	}
 }
	/*******************************************************************************
	* Copyright (c) 2000, 2009 IBM Corporation and others.
	* All rights reserved. This program and the accompanying materials
	* are made available under the terms of the Eclipse Public License v1.0
	* which accompanies this distribution, and is available at
	* http://www.eclipse.org/legal/epl-v10.html
	*
	* Contributors:
	* IBM Corporation - initial API and implementation
	*******************************************************************************/
	package org.eclipse.jdt.internal.ui.actions;

	import java.util.ArrayList;
	import java.util.List;

	import org.eclipse.swt.events.MenuAdapter;
	import org.eclipse.swt.events.MenuEvent;
	import org.eclipse.swt.widgets.Control;
	import org.eclipse.swt.widgets.Menu;
	import org.eclipse.swt.widgets.MenuItem;

	import org.eclipse.jface.action.Action;
	import org.eclipse.jface.action.ActionContributionItem;
	import org.eclipse.jface.action.IAction;
	import org.eclipse.jface.action.IMenuManager;
	import org.eclipse.jface.viewers.ISelection;

	import org.eclipse.jface.text.IDocument;
	import org.eclipse.jface.text.ITextSelection;

	import org.eclipse.ui.IPartService;
	import org.eclipse.ui.IWorkbenchPart;
	import org.eclipse.ui.IWorkbenchWindow;
	import org.eclipse.ui.IWorkbenchWindowPulldownDelegate2;
	import org.eclipse.ui.actions.RetargetAction;

	import org.eclipse.jdt.core.ITypeRoot;

	import org.eclipse.jdt.ui.JavaUI;
	import org.eclipse.jdt.ui.actions.IJavaEditorActionDefinitionIds;
	import org.eclipse.jdt.ui.actions.JdtActionConstants;
	import org.eclipse.jdt.ui.actions.SelectionDispatchAction;

	import org.eclipse.jdt.internal.ui.JavaPlugin;
	import org.eclipse.jdt.internal.ui.javaeditor.JavaEditor;
	import org.eclipse.jdt.internal.ui.javaeditor.JavaTextSelection;

	/**
	* <p>
	* This is required because of
	* https://bugs.eclipse.org/bugs/show_bug.cgi?id=79162
	* and
	* https://bugs.eclipse.org/bugs/show_bug.cgi?id=137679
	* </p>
	*/
	public class OccurrencesSearchMenuAction implements IWorkbenchWindowPulldownDelegate2 {

	private static Action NO_ACTION_AVAILABLE= new Action(ActionMessages.OccurrencesSearchMenuAction_no_entries_available) {
	@Override
	public boolean isEnabled() {
	return false;
	}
	};

	private Menu fMenu;

	private IPartService fPartService;
	private RetargetAction[] fRetargetActions;

	/**
	* {@inheritDoc}
	*/
	public Menu getMenu(Menu parent) {
	setMenu(new Menu(parent));
	fillMenu(fMenu);
	initMenu(fMenu);
	return fMenu;
	}

	/**
	* {@inheritDoc}
	*/
	public Menu getMenu(Control parent) {
	setMenu(new Menu(parent));
	fillMenu(fMenu);
	initMenu(fMenu);
	return fMenu;
	}

	protected void initMenu(Menu menu) {
	menu.addMenuListener(new MenuAdapter() {
	@Override
	public void menuShown(MenuEvent e) {
	Menu m= (Menu) e.widget;
	MenuItem[] items= m.getItems();
	for (int i= 0; i < items.length; i++) {
	items[i].dispose();
	}
	fillMenu(m);
	}
	});
	}

	/**
	* {@inheritDoc}
	*/
	public void dispose() {
	setMenu(null);
	disposeSubmenuActions();
	}

	private RetargetAction createSubmenuAction(IPartService partService, String actionID, String text, String actionDefinitionId) {
	RetargetAction action= new RetargetAction(actionID, text);
	action.setActionDefinitionId(actionDefinitionId);

	partService.addPartListener(action);
	IWorkbenchPart activePart = partService.getActivePart();
	if (activePart != null) {
	action.partActivated(activePart);
	}
	return action;
	}

	private void disposeSubmenuActions() {
	if (fPartService != null && fRetargetActions != null) {
	for (int i= 0; i < fRetargetActions.length; i++) {
	fPartService.removePartListener(fRetargetActions[i]);
	fRetargetActions[i].dispose();
	}
	}
	fRetargetActions= null;
	fPartService= null;
	}

	/**
	* {@inheritDoc}
	*/
	public void init(IWorkbenchWindow window) {
	disposeSubmenuActions(); // paranoia code: double initialization should not happen
	if (window != null) {
	fPartService= window.getPartService();
	if (fPartService != null) {
	fRetargetActions= new RetargetAction[] {
	createSubmenuAction(fPartService, JdtActionConstants.FIND_OCCURRENCES_IN_FILE, ActionMessages.OccurrencesSearchMenuAction_occurrences_in_file_label, IJavaEditorActionDefinitionIds.SEARCH_OCCURRENCES_IN_FILE),
	createSubmenuAction(fPartService, JdtActionConstants.FIND_IMPLEMENT_OCCURRENCES, ActionMessages.OccurrencesSearchMenuAction_implementing_methods_label, IJavaEditorActionDefinitionIds.SEARCH_IMPLEMENT_OCCURRENCES_IN_FILE),
	createSubmenuAction(fPartService, JdtActionConstants.FIND_EXCEPTION_OCCURRENCES, ActionMessages.OccurrencesSearchMenuAction_throwing_exception_label, IJavaEditorActionDefinitionIds.SEARCH_EXCEPTION_OCCURRENCES_IN_FILE),
	createSubmenuAction(fPartService, JdtActionConstants.FIND_METHOD_EXIT_OCCURRENCES, ActionMessages.OccurrencesSearchMenuAction_method_exits_label, IJavaEditorActionDefinitionIds.SEARCH_METHOD_EXIT_OCCURRENCES),
	createSubmenuAction(fPartService, JdtActionConstants.FIND_BREAK_CONTINUE_TARGET_OCCURRENCES, ActionMessages.OccurrencesSearchMenuAction_break_continue_target_label, IJavaEditorActionDefinitionIds.SEARCH_BREAK_CONTINUE_TARGET_OCCURRENCES)
	};
	}
	}
	}

	/**
	* {@inheritDoc}
	*/
	public void run(IAction a) {
	if (fRetargetActions == null)
	return;

	JavaEditor editor;
	ISelection selection;

	IWorkbenchPart activePart= JavaPlugin.getActivePage().getActivePart();
	if (activePart instanceof JavaEditor) {
	selection= getEditorSelection((JavaEditor) activePart);
	if (selection == null)
	return;

	if (selection instanceof ITextSelection) {
	editor= (JavaEditor) activePart;
	} else {
	editor= null;
	}
	} else {
	editor= null;
	selection= activePart.getSite().getSelectionProvider().getSelection();
	}

	final ArrayList<IAction> activeActions= new ArrayList<IAction>(fRetargetActions.length);
	for (int i= 0; i < fRetargetActions.length; i++) {
	RetargetAction action= fRetargetActions[i];
	IAction actionHandler= action.getActionHandler();
	if (actionHandler instanceof SelectionDispatchAction) {
	((SelectionDispatchAction) actionHandler).update(selection);
	if (actionHandler.isEnabled()) {
	activeActions.add(actionHandler);
	}
	}
	}
	if (activeActions.size() == 1) {
	activeActions.get(0).run();
	} else {
	new JDTQuickMenuCreator(editor) {
	@Override
	protected void fillMenu(IMenuManager menu) {
	fillQuickMenu(menu, activeActions);
	}
	}.createMenu();
	}
	}

	private void updateActions() {
	IWorkbenchPart activePart= JavaPlugin.getActivePage().getActivePart();
	if (!(activePart instanceof JavaEditor))
	return;

	ISelection javaSelection= getEditorSelection((JavaEditor) activePart);
	if (javaSelection == null)
	return;

	for (int i= 0; i < fRetargetActions.length; i++) {
	RetargetAction action= fRetargetActions[i];
	IAction actionHandler= action.getActionHandler();
	if (actionHandler instanceof SelectionDispatchAction) {
	((SelectionDispatchAction) actionHandler).update(javaSelection);
	}
	}
	}

	private ISelection getEditorSelection(JavaEditor editor) {
	ITypeRoot element= SelectionConverter.getInput(editor);
	if (element == null)
	return null;

	if (editor.isBreadcrumbActive())
	return editor.getBreadcrumb().getSelectionProvider().getSelection();
	else {
	ITextSelection textSelection= (ITextSelection) editor.getSelectionProvider().getSelection();
	IDocument document= JavaUI.getDocumentProvider().getDocument(editor.getEditorInput());
	return new JavaTextSelection(element, document, textSelection.getOffset(), textSelection.getLength());
	}
	}


	/**
	* {@inheritDoc}
	*/
	public void selectionChanged(IAction action, ISelection selection) {
	}

	private void fillQuickMenu(IMenuManager manager, List<IAction> activeActions) {
	if (activeActions.isEmpty()) {
	manager.add(NO_ACTION_AVAILABLE);
	} else {
	for (int i= 0; i < activeActions.size(); i++) {
	manager.add(activeActions.get(i));
	}
	}
	}

	/**
	* The menu to show in the workbench menu
	* @param menu the menu to fill
	*/
	public void fillMenu(Menu menu) {
	if (fRetargetActions != null) {
	updateActions();
	for (int i= 0; i < fRetargetActions.length; i++) {
	ActionContributionItem item= new ActionContributionItem(fRetargetActions[i]);
	item.fill(menu, -1);
	}
	} else {
	// can only happen if 'init' was not called: programming error
	ActionContributionItem item= new ActionContributionItem(NO_ACTION_AVAILABLE);
	item.fill(menu, -1);
	}
	}

	private void setMenu(Menu menu) {
	if (fMenu != null) {
	fMenu.dispose();
	}
	fMenu = menu;
	}
	}