eclipse-tools/emf-graphical-viewer/plugins/org.eclipse.app4mc.emfutils.content.extractor/src/org/eclipse/app4mc/emfutils/content/extractor/views/DiagramView.java - app4mc/org.eclipse.app4mc.tools - Git at Google

  /**
  ********************************************************************************
  * Copyright (c) 2017 - 2018 Robert Bosch GmbH.
  *
  * This program and the accompanying materials are made
  * available under the terms of the Eclipse Public License 2.0
  * which is available at https://www.eclipse.org/legal/epl-2.0/
  *
  * SPDX-License-Identifier: EPL-2.0
  *
  * Contributors:
  *     Robert Bosch GmbH - initial API and implementation
  ********************************************************************************
  */
 package org.eclipse.app4mc.emfutils.content.extractor.views;

 import java.io.IOException;
 import java.lang.reflect.InvocationTargetException;
 import java.lang.reflect.Method;
 import java.util.Collections;
 import java.util.Stack;

 import org.eclipse.app4mc.emfutils.content.extractor.Activator;
 import org.eclipse.app4mc.emfutils.content.extractor.builders.EClassAllReferencesBufferBuilder;
 import org.eclipse.app4mc.emfutils.content.extractor.builders.EClassContentsAndHierarchyBufferBuilder;
 import org.eclipse.app4mc.emfutils.content.extractor.builders.EClassContentsFromReferenceBufferBuilder;
 import org.eclipse.app4mc.emfutils.content.extractor.builders.EClassHierarchyBufferBuilder;
 import org.eclipse.app4mc.emfutils.content.extractor.builders.ObjectContentBufferBuilder;
 import org.eclipse.app4mc.emfutils.content.extractor.handlers.AbstractHandlerUtils;
 import org.eclipse.app4mc.emfutils.content.extractor.preferences.PreferenceConstants;
 import org.eclipse.app4mc.emfutils.content.extractor.utils.ExecutionCategory;
 import org.eclipse.app4mc.emfutils.content.extractor.utils.ExecutionUtil;
 import org.eclipse.core.resources.IFile;
 import org.eclipse.core.resources.ResourcesPlugin;
 import org.eclipse.core.runtime.Path;
 import org.eclipse.emf.common.ui.URIEditorInput;
 import org.eclipse.emf.common.util.BasicEMap;
 import org.eclipse.emf.common.util.EList;
 import org.eclipse.emf.common.util.EMap;
 import org.eclipse.emf.common.util.URI;
 import org.eclipse.emf.ecore.EClass;
 import org.eclipse.emf.ecore.EObject;
 import org.eclipse.emf.ecore.resource.Resource;
 import org.eclipse.jface.action.Action;
 import org.eclipse.jface.action.IAction;
 import org.eclipse.jface.action.IToolBarManager;
 import org.eclipse.jface.dialogs.MessageDialog;
 import org.eclipse.jface.viewers.StructuredSelection;
 import org.eclipse.jface.viewers.TreeViewer;
 import org.eclipse.jface.viewers.Viewer;
 import org.eclipse.sphinx.emf.editors.forms.BasicTransactionalFormEditor;
 import org.eclipse.sphinx.emf.ui.util.EcoreUIUtil;
 import org.eclipse.swt.SWT;
 import org.eclipse.swt.browser.Browser;
 import org.eclipse.swt.browser.LocationEvent;
 import org.eclipse.swt.browser.LocationListener;
 import org.eclipse.swt.browser.ProgressEvent;
 import org.eclipse.swt.browser.ProgressListener;
 import org.eclipse.swt.events.KeyAdapter;
 import org.eclipse.swt.events.KeyEvent;
 import org.eclipse.swt.events.KeyListener;
 import org.eclipse.swt.events.TraverseEvent;
 import org.eclipse.swt.events.TraverseListener;
 import org.eclipse.swt.layout.GridData;
 import org.eclipse.swt.widgets.Composite;
 import org.eclipse.swt.widgets.Display;
 import org.eclipse.ui.IActionBars;
 import org.eclipse.ui.IEditorPart;
 import org.eclipse.ui.IEditorReference;
 import org.eclipse.ui.IViewSite;
 import org.eclipse.ui.IWorkbenchPage;
 import org.eclipse.ui.PartInitException;
 import org.eclipse.ui.PlatformUI;
 import org.eclipse.ui.ide.IDE;
 import org.eclipse.ui.part.FileEditorInput;
 import org.eclipse.ui.part.MultiPageEditorPart;
 import org.eclipse.ui.part.ViewPart;


 public class DiagramView extends ViewPart {

 	/**
 	 * The ID of the view as specified by the extension.
 	 */
 	public static final String ID = "org.eclipse.app4mc.emfutils.content.extractor.views.DiagramView";

 	/** counter for the generated files (which are associated to the collections ) **/
 	private int i = 0;

 	private Browser browser;


 	final EMap<String, Object> idObjectsMap;


 	/**
 	 * The constructor.
 	 */
 	public DiagramView() {

 		this.idObjectsMap = new BasicEMap<String, Object>();
 	}

 	@Override
 	public void init(final IViewSite site) throws PartInitException {
 		super.init(site);
 		addActions();
 	}


 	/**
 	 * This is a callback that will allow us to create the viewer and initialize it.
 	 */
 	@Override
 	public void createPartControl(final Composite parent) {
 		this.browser = new Browser(parent, SWT.None);

 		this.browser.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true));

 		CustomBrowserListener listener = new CustomBrowserListener();
 		this.browser.addKeyListener(listener );

 		this.browser.addLocationListener(listener);


 	}

 	class CustomBrowserListener implements LocationListener, KeyListener  {

 		String lastSource = "";

 		public Stack<String> urls=new Stack<>();;

 		boolean isBackButtonPressed=false;

 		@Override
 		public void changing(final LocationEvent event) {

 			if(isBackButtonPressed) {
 				isBackButtonPressed=false;
 				return;
 			}

 			final String location = event.location;
 //TODO: found this
 			if (!location.endsWith(".svg")) {
 				final int lastIndexOf = location.lastIndexOf("/");

 				String id = "";
 				if (lastIndexOf != -1) {
 					id = location.substring(lastIndexOf + 1, location.length());
 				}
 				final Object source = event.getSource();

 				if (source instanceof Browser) {

 					try {
 //						((Browser) source).setUrl(this.lastSource);
 					}
 					catch (final Exception e) {
 						// skipping exception logging, as here goal is to still retain the same image
 					}
 				}

 				final Object eObject = DiagramView.this.idObjectsMap.get(id);

 				if (eObject != null) {

 					if (eObject instanceof EObject) {
 						if (Activator.getDefault().getPreferenceStore()
 								.getBoolean(PreferenceConstants.P_DRILL_DOWN)) {

 							/*- ======================================== Regeneration of SVG Buffer for populating content specific to the selection =====================*/

 							StringBuffer buildBuffer = new StringBuffer();


 							if (ExecutionUtil.isExecuting(ExecutionCategory.eClassHierarchy)
 									&& (eObject instanceof EClass)) {

 								final EClassHierarchyBufferBuilder bufferBuilder = new EClassHierarchyBufferBuilder();

 								buildBuffer = bufferBuilder.buildBuffer((EClass) eObject);

 								getIdObjectsMap().addAll(bufferBuilder.getId2ObjectsMap());
 							}
 							else if (ExecutionUtil.isExecuting(ExecutionCategory.eClassContentsAndHierarchy)
 									&& (eObject instanceof EClass)) {

 								final EClassContentsAndHierarchyBufferBuilder bufferBuilder = new EClassContentsAndHierarchyBufferBuilder();

 								buildBuffer = bufferBuilder.buildBuffer((EClass) eObject);

 								getIdObjectsMap().addAll(bufferBuilder.getId2ObjectsMap());
 							}
 							else if (ExecutionUtil.isExecuting(ExecutionCategory.eClassAllReferences)
 									&& (eObject instanceof EClass)) {


 								final EClassAllReferencesBufferBuilder bufferBuilder = new EClassAllReferencesBufferBuilder();

 								buildBuffer = bufferBuilder.buildBuffer((EClass) eObject);

 								getIdObjectsMap().addAll(bufferBuilder.getId2ObjectsMap());


 							}
 							else if (ExecutionUtil.isExecuting(ExecutionCategory.eClassContentsFromReference)
 									&& (eObject instanceof EClass)) {


 								final EClassContentsFromReferenceBufferBuilder bufferBuilder = new EClassContentsFromReferenceBufferBuilder();

 								buildBuffer = bufferBuilder.buildBuffer((EClass) eObject);

 								getIdObjectsMap().addAll(bufferBuilder.getId2ObjectsMap());


 							}

 							else {

 								/*- EClassContents and EObjectRefs behaviour is included in ObjectContentBufferBuilder java class */
 								final ObjectContentBufferBuilder bufferBuilder = new ObjectContentBufferBuilder();

 								buildBuffer = bufferBuilder.buildBuffer((EObject) eObject);

 								getIdObjectsMap().addAll(bufferBuilder.getId2ObjectsMap());
 							}


 							System.out.println(buildBuffer);

 							try {


 								final String svgFile = AbstractHandlerUtils.generateSVGFile(buildBuffer,
 										((EObject) eObject).eClass().getName() + DiagramView.this.i++,
 										new BasicEMap<String, Object>());
 								((Browser) source).setUrl(svgFile);
 							}
 							catch (final IOException e) {
 								e.printStackTrace();
 							}


 						}
 						else {


 							if (ExecutionUtil.isExecuting(ExecutionCategory.eClassHierarchy)
 									&& (eObject instanceof EClass)) {
 								// do nothing
 							}


 							else if (ExecutionUtil.isExecuting(ExecutionCategory.eClassContentsAndHierarchy)
 									&& (eObject instanceof EClass)) {
 								// do nothing
 							}
 							else if (ExecutionUtil.isExecuting(ExecutionCategory.eClassAllReferences)
 									&& (eObject instanceof EClass)) {
 								// do nothing
 							}
 							else {
 								selectElement((EObject) eObject);

 							}

 //							((Browser)source).stop();

 							event.doit=false;
 						}

 					}
 					else if (eObject instanceof EList<?>) {

 						if (Activator.getDefault().getPreferenceStore()
 								.getBoolean(PreferenceConstants.P_DRILL_DOWN)) {

 							/*- ======================================== Regeneration of SVG Buffer for populating content specific to the selection =====================*/

 							final ObjectContentBufferBuilder bufferBuilder = new ObjectContentBufferBuilder();

 							final StringBuffer buildBuffer = bufferBuilder
 									.buildBufferForCollection((EList<?>) eObject);
 							System.out.println(buildBuffer);

 							try {

 								getIdObjectsMap().addAll(bufferBuilder.getId2ObjectsMap());

 								final String svgFile = AbstractHandlerUtils.generateSVGFile(buildBuffer,
 										"Collection" + DiagramView.this.i++, bufferBuilder.getId2ObjectsMap());
 								((Browser) source).setUrl(svgFile);
 							}
 							catch (final IOException e) {
 								e.printStackTrace();
 							}


 						}
 						else {
 							MessageDialog.openError(Display.getDefault().getActiveShell(), "Element Selection",
 									"Selection of list is not possible for AMALTHEA model");

 							try {
 								((Browser) source).setUrl(this.lastSource);

 							}
 							catch (final Exception e) {
 								throw e;
 							}
 						}

 					}


 				}


 			}


 		}

 		@Override
 		public void changed(final LocationEvent event) {
 			this.lastSource = event.location;
 			urls.push(this.lastSource);
 		}

 		/**
 		 * This method is used to select specified AMALTHEA element in the Sphinx editor
 		 *
 		 * @param element
 		 */
 		private void selectElement(final EObject element) {

 			final URIEditorInput input = EcoreUIUtil.createURIEditorInput(element.eResource());
 			if (null != input) {

 				final IWorkbenchPage page = PlatformUI.getWorkbench().getActiveWorkbenchWindow() != null
 						? PlatformUI.getWorkbench().getActiveWorkbenchWindow().getActivePage()
 						: PlatformUI.getWorkbench().getWorkbenchWindows()[0].getActivePage();

 				Display.getDefault().asyncExec(new java.lang.Runnable() {

 					@Override
 					public void run() {
 						final IEditorReference[] editorReferences = page.getEditorReferences();

 						for (final IEditorReference iEditorReference : editorReferences) {


 							if (iEditorReference.getId().equals("org.eclipse.app4mc.amalthea.sphinx.ui.editor")
 									|| iEditorReference.getId().equals("org.itea2.amalthea.sphinx.ui.editor")
 								|| iEditorReference.getId().equals("com.inchron.realtime.root.presentation.RootEditorID")) {
 								try {
 									final FileEditorInput editorInput = (FileEditorInput) iEditorReference
 											.getEditorInput();

 									final IFile fileFromEditor = editorInput.getFile();

 									final Resource eResource = element.eResource();

 									final URI uri = eResource.getURI();

 									final IFile fileFromResource = ResourcesPlugin.getWorkspace().getRoot()
 											.getFile(new Path(uri.toPlatformString(true)));


 									if ((fileFromEditor != null && fileFromResource != null)
 											&& fileFromEditor.toString().equals(fileFromResource.toString())) {

 										final IEditorPart activeEditor = iEditorReference.getEditor(false);

 										if (activeEditor instanceof MultiPageEditorPart) {

 											IDE.openEditor(page, editorInput, iEditorReference.getId());

 											if (canCollapseTreeElements()) {

 												Method method = activeEditor.getClass().getMethod("getViewer");


 												final Viewer viewer =   (Viewer) method.invoke(activeEditor);

 												if (viewer instanceof TreeViewer) {
 													((TreeViewer) viewer).collapseAll();

 												}
 											}

 											if(activeEditor instanceof BasicTransactionalFormEditor) {
 												((BasicTransactionalFormEditor) activeEditor)
 												.setSelectionToViewer(Collections.singleton(element));

 											}else {

 												Method method = activeEditor.getClass().getMethod("getViewer");


 												final Viewer viewer =   (Viewer) method.invoke(activeEditor);

 												if (viewer instanceof TreeViewer) {
 													((TreeViewer) viewer).setSelection(new StructuredSelection(element), true);

 												}
 											}
 										}

 									}
 								}
 								catch (final PartInitException | NoSuchMethodException | SecurityException | IllegalAccessException | IllegalArgumentException | InvocationTargetException e) {
 									e.printStackTrace();
 								}
 							}
 						}

 					}

 					private boolean canCollapseTreeElements() {
 						return Activator.getDefault().getPreferenceStore()
 								.getBoolean(PreferenceConstants.P_REDRAW_TREE_ON_SELECTION);
 					}
 				});

 			}

 		}

 		@Override
 		public void keyPressed(KeyEvent e) {

 			if(e.character=='\b') {
 				isBackButtonPressed=true;
 				Object source = e.getSource();
 				if (source instanceof Browser) {

 					try {
 						if(urls.isEmpty()==false) {
 							String pop = urls.pop();

 							if(urls.isEmpty()==false) {
 								pop = urls.pop();
 								((Browser) source).setUrl(pop);
 							}
 						}
 					}
 					catch (final Exception exception) {
 						// skipping exception logging, as here goal is to still retain the same image
 					}
 				}

 			}
 		}

 		@Override
 		public void keyReleased(KeyEvent e) {


 		}
 	};

 	private void addActions() {
 		final String P_DRILL_DOWN = Activator.getDefault().getPreferenceStore()
 				.getString(PreferenceConstants.P_DRILL_DOWN);

 		boolean state = false;
 		if (P_DRILL_DOWN == null) {
 			state = true;
 		}
 		else if (P_DRILL_DOWN.equals("false")) {
 			state = true;
 		}
 		else if (P_DRILL_DOWN.equals("true")) {
 			state = false;
 		}


 		final IActionBars actionBars = getViewSite().getActionBars();

 		final IToolBarManager toolBar = actionBars.getToolBarManager();
 		final Action action = new Action("Select in Editor", IAction.AS_CHECK_BOX) {
 			@Override
 			public void setText(final String text) {
 				super.setText(text);
 			}

 			@Override
 			public void run() {

 				if (isChecked() == false) {

 					try {

 						Activator.getDefault().getPreferenceStore().setValue(PreferenceConstants.P_DRILL_DOWN, true);
 					}
 					catch (final Exception e) {

 						throw e;
 					}
 				}
 				else if (isChecked() == true) {

 					try {
 						Activator.getDefault().getPreferenceStore().setValue(PreferenceConstants.P_DRILL_DOWN, false);

 					}
 					catch (final Exception e) {
 						throw e;
 					}
 				}

 			}


 		};

 		action.setChecked(state);

 		toolBar.add(action);

 	}

 	/**
 	 * Passing the focus request to the viewer's control.
 	 */
 	@Override
 	public void setFocus() {
 		getViewSite().getActionBars().updateActionBars();


 	}

 	public Browser getBrowser() {
 		return this.browser;
 	}

 	public EMap<String, Object> getIdObjectsMap() {
 		return this.idObjectsMap;
 	}

 }
	/**
	********************************************************************************
	* Copyright (c) 2017 - 2018 Robert Bosch GmbH.
	*
	* This program and the accompanying materials are made
	* available under the terms of the Eclipse Public License 2.0
	* which is available at https://www.eclipse.org/legal/epl-2.0/
	*
	* SPDX-License-Identifier: EPL-2.0
	*
	* Contributors:
	* Robert Bosch GmbH - initial API and implementation
	********************************************************************************
	*/
	package org.eclipse.app4mc.emfutils.content.extractor.views;

	import java.io.IOException;
	import java.lang.reflect.InvocationTargetException;
	import java.lang.reflect.Method;
	import java.util.Collections;
	import java.util.Stack;

	import org.eclipse.app4mc.emfutils.content.extractor.Activator;
	import org.eclipse.app4mc.emfutils.content.extractor.builders.EClassAllReferencesBufferBuilder;
	import org.eclipse.app4mc.emfutils.content.extractor.builders.EClassContentsAndHierarchyBufferBuilder;
	import org.eclipse.app4mc.emfutils.content.extractor.builders.EClassContentsFromReferenceBufferBuilder;
	import org.eclipse.app4mc.emfutils.content.extractor.builders.EClassHierarchyBufferBuilder;
	import org.eclipse.app4mc.emfutils.content.extractor.builders.ObjectContentBufferBuilder;
	import org.eclipse.app4mc.emfutils.content.extractor.handlers.AbstractHandlerUtils;
	import org.eclipse.app4mc.emfutils.content.extractor.preferences.PreferenceConstants;
	import org.eclipse.app4mc.emfutils.content.extractor.utils.ExecutionCategory;
	import org.eclipse.app4mc.emfutils.content.extractor.utils.ExecutionUtil;
	import org.eclipse.core.resources.IFile;
	import org.eclipse.core.resources.ResourcesPlugin;
	import org.eclipse.core.runtime.Path;
	import org.eclipse.emf.common.ui.URIEditorInput;
	import org.eclipse.emf.common.util.BasicEMap;
	import org.eclipse.emf.common.util.EList;
	import org.eclipse.emf.common.util.EMap;
	import org.eclipse.emf.common.util.URI;
	import org.eclipse.emf.ecore.EClass;
	import org.eclipse.emf.ecore.EObject;
	import org.eclipse.emf.ecore.resource.Resource;
	import org.eclipse.jface.action.Action;
	import org.eclipse.jface.action.IAction;
	import org.eclipse.jface.action.IToolBarManager;
	import org.eclipse.jface.dialogs.MessageDialog;
	import org.eclipse.jface.viewers.StructuredSelection;
	import org.eclipse.jface.viewers.TreeViewer;
	import org.eclipse.jface.viewers.Viewer;
	import org.eclipse.sphinx.emf.editors.forms.BasicTransactionalFormEditor;
	import org.eclipse.sphinx.emf.ui.util.EcoreUIUtil;
	import org.eclipse.swt.SWT;
	import org.eclipse.swt.browser.Browser;
	import org.eclipse.swt.browser.LocationEvent;
	import org.eclipse.swt.browser.LocationListener;
	import org.eclipse.swt.browser.ProgressEvent;
	import org.eclipse.swt.browser.ProgressListener;
	import org.eclipse.swt.events.KeyAdapter;
	import org.eclipse.swt.events.KeyEvent;
	import org.eclipse.swt.events.KeyListener;
	import org.eclipse.swt.events.TraverseEvent;
	import org.eclipse.swt.events.TraverseListener;
	import org.eclipse.swt.layout.GridData;
	import org.eclipse.swt.widgets.Composite;
	import org.eclipse.swt.widgets.Display;
	import org.eclipse.ui.IActionBars;
	import org.eclipse.ui.IEditorPart;
	import org.eclipse.ui.IEditorReference;
	import org.eclipse.ui.IViewSite;
	import org.eclipse.ui.IWorkbenchPage;
	import org.eclipse.ui.PartInitException;
	import org.eclipse.ui.PlatformUI;
	import org.eclipse.ui.ide.IDE;
	import org.eclipse.ui.part.FileEditorInput;
	import org.eclipse.ui.part.MultiPageEditorPart;
	import org.eclipse.ui.part.ViewPart;


	public class DiagramView extends ViewPart {

	/**
	* The ID of the view as specified by the extension.
	*/
	public static final String ID = "org.eclipse.app4mc.emfutils.content.extractor.views.DiagramView";

	/ counter for the generated files (which are associated to the collections ) /
	private int i = 0;

	private Browser browser;


	final EMap<String, Object> idObjectsMap;


	/**
	* The constructor.
	*/
	public DiagramView() {

	this.idObjectsMap = new BasicEMap<String, Object>();
	}

	@Override
	public void init(final IViewSite site) throws PartInitException {
	super.init(site);
	addActions();
	}



	/**
	* This is a callback that will allow us to create the viewer and initialize it.
	*/
	@Override
	public void createPartControl(final Composite parent) {
	this.browser = new Browser(parent, SWT.None);

	this.browser.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true));

	CustomBrowserListener listener = new CustomBrowserListener();
	this.browser.addKeyListener(listener );

	this.browser.addLocationListener(listener);



	}

	class CustomBrowserListener implements LocationListener, KeyListener {

	String lastSource = "";

	public Stack<String> urls=new Stack<>();;

	boolean isBackButtonPressed=false;

	@Override
	public void changing(final LocationEvent event) {

	if(isBackButtonPressed) {
	isBackButtonPressed=false;
	return;
	}

	final String location = event.location;
	//TODO: found this
	if (!location.endsWith(".svg")) {
	final int lastIndexOf = location.lastIndexOf("/");

	String id = "";
	if (lastIndexOf != -1) {
	id = location.substring(lastIndexOf + 1, location.length());
	}
	final Object source = event.getSource();

	if (source instanceof Browser) {

	try {
	// ((Browser) source).setUrl(this.lastSource);
	}
	catch (final Exception e) {
	// skipping exception logging, as here goal is to still retain the same image
	}
	}

	final Object eObject = DiagramView.this.idObjectsMap.get(id);

	if (eObject != null) {

	if (eObject instanceof EObject) {
	if (Activator.getDefault().getPreferenceStore()
	.getBoolean(PreferenceConstants.P_DRILL_DOWN)) {

	/- ======================================== Regeneration of SVG Buffer for populating content specific to the selection =====================/

	StringBuffer buildBuffer = new StringBuffer();


	if (ExecutionUtil.isExecuting(ExecutionCategory.eClassHierarchy)
	&& (eObject instanceof EClass)) {

	final EClassHierarchyBufferBuilder bufferBuilder = new EClassHierarchyBufferBuilder();

	buildBuffer = bufferBuilder.buildBuffer((EClass) eObject);

	getIdObjectsMap().addAll(bufferBuilder.getId2ObjectsMap());
	}
	else if (ExecutionUtil.isExecuting(ExecutionCategory.eClassContentsAndHierarchy)
	&& (eObject instanceof EClass)) {

	final EClassContentsAndHierarchyBufferBuilder bufferBuilder = new EClassContentsAndHierarchyBufferBuilder();

	buildBuffer = bufferBuilder.buildBuffer((EClass) eObject);

	getIdObjectsMap().addAll(bufferBuilder.getId2ObjectsMap());
	}
	else if (ExecutionUtil.isExecuting(ExecutionCategory.eClassAllReferences)
	&& (eObject instanceof EClass)) {


	final EClassAllReferencesBufferBuilder bufferBuilder = new EClassAllReferencesBufferBuilder();

	buildBuffer = bufferBuilder.buildBuffer((EClass) eObject);

	getIdObjectsMap().addAll(bufferBuilder.getId2ObjectsMap());


	}
	else if (ExecutionUtil.isExecuting(ExecutionCategory.eClassContentsFromReference)
	&& (eObject instanceof EClass)) {


	final EClassContentsFromReferenceBufferBuilder bufferBuilder = new EClassContentsFromReferenceBufferBuilder();

	buildBuffer = bufferBuilder.buildBuffer((EClass) eObject);

	getIdObjectsMap().addAll(bufferBuilder.getId2ObjectsMap());


	}

	else {

	/- EClassContents and EObjectRefs behaviour is included in ObjectContentBufferBuilder java class /
	final ObjectContentBufferBuilder bufferBuilder = new ObjectContentBufferBuilder();

	buildBuffer = bufferBuilder.buildBuffer((EObject) eObject);

	getIdObjectsMap().addAll(bufferBuilder.getId2ObjectsMap());
	}


	System.out.println(buildBuffer);

	try {


	final String svgFile = AbstractHandlerUtils.generateSVGFile(buildBuffer,
	((EObject) eObject).eClass().getName() + DiagramView.this.i++,
	new BasicEMap<String, Object>());
	((Browser) source).setUrl(svgFile);
	}
	catch (final IOException e) {
	e.printStackTrace();
	}


	}
	else {


	if (ExecutionUtil.isExecuting(ExecutionCategory.eClassHierarchy)
	&& (eObject instanceof EClass)) {
	// do nothing
	}


	else if (ExecutionUtil.isExecuting(ExecutionCategory.eClassContentsAndHierarchy)
	&& (eObject instanceof EClass)) {
	// do nothing
	}
	else if (ExecutionUtil.isExecuting(ExecutionCategory.eClassAllReferences)
	&& (eObject instanceof EClass)) {
	// do nothing
	}
	else {
	selectElement((EObject) eObject);

	}

	// ((Browser)source).stop();

	event.doit=false;
	}

	}
	else if (eObject instanceof EList<?>) {

	if (Activator.getDefault().getPreferenceStore()
	.getBoolean(PreferenceConstants.P_DRILL_DOWN)) {

	/- ======================================== Regeneration of SVG Buffer for populating content specific to the selection =====================/

	final ObjectContentBufferBuilder bufferBuilder = new ObjectContentBufferBuilder();

	final StringBuffer buildBuffer = bufferBuilder
	.buildBufferForCollection((EList<?>) eObject);
	System.out.println(buildBuffer);

	try {

	getIdObjectsMap().addAll(bufferBuilder.getId2ObjectsMap());

	final String svgFile = AbstractHandlerUtils.generateSVGFile(buildBuffer,
	"Collection" + DiagramView.this.i++, bufferBuilder.getId2ObjectsMap());
	((Browser) source).setUrl(svgFile);
	}
	catch (final IOException e) {
	e.printStackTrace();
	}


	}
	else {
	MessageDialog.openError(Display.getDefault().getActiveShell(), "Element Selection",
	"Selection of list is not possible for AMALTHEA model");

	try {
	((Browser) source).setUrl(this.lastSource);

	}
	catch (final Exception e) {
	throw e;
	}
	}

	}


	}


	}


	}

	@Override
	public void changed(final LocationEvent event) {
	this.lastSource = event.location;
	urls.push(this.lastSource);
	}

	/**
	* This method is used to select specified AMALTHEA element in the Sphinx editor
	*
	* @param element
	*/
	private void selectElement(final EObject element) {

	final URIEditorInput input = EcoreUIUtil.createURIEditorInput(element.eResource());
	if (null != input) {

	final IWorkbenchPage page = PlatformUI.getWorkbench().getActiveWorkbenchWindow() != null
	? PlatformUI.getWorkbench().getActiveWorkbenchWindow().getActivePage()
	: PlatformUI.getWorkbench().getWorkbenchWindows()[0].getActivePage();

	Display.getDefault().asyncExec(new java.lang.Runnable() {

	@Override
	public void run() {
	final IEditorReference[] editorReferences = page.getEditorReferences();

	for (final IEditorReference iEditorReference : editorReferences) {


	if (iEditorReference.getId().equals("org.eclipse.app4mc.amalthea.sphinx.ui.editor")
	\|\| iEditorReference.getId().equals("org.itea2.amalthea.sphinx.ui.editor")
	\|\| iEditorReference.getId().equals("com.inchron.realtime.root.presentation.RootEditorID")) {
	try {
	final FileEditorInput editorInput = (FileEditorInput) iEditorReference
	.getEditorInput();

	final IFile fileFromEditor = editorInput.getFile();

	final Resource eResource = element.eResource();

	final URI uri = eResource.getURI();

	final IFile fileFromResource = ResourcesPlugin.getWorkspace().getRoot()
	.getFile(new Path(uri.toPlatformString(true)));


	if ((fileFromEditor != null && fileFromResource != null)
	&& fileFromEditor.toString().equals(fileFromResource.toString())) {

	final IEditorPart activeEditor = iEditorReference.getEditor(false);

	if (activeEditor instanceof MultiPageEditorPart) {

	IDE.openEditor(page, editorInput, iEditorReference.getId());

	if (canCollapseTreeElements()) {

	Method method = activeEditor.getClass().getMethod("getViewer");


	final Viewer viewer = (Viewer) method.invoke(activeEditor);

	if (viewer instanceof TreeViewer) {
	((TreeViewer) viewer).collapseAll();

	}
	}

	if(activeEditor instanceof BasicTransactionalFormEditor) {
	((BasicTransactionalFormEditor) activeEditor)
	.setSelectionToViewer(Collections.singleton(element));

	}else {

	Method method = activeEditor.getClass().getMethod("getViewer");


	final Viewer viewer = (Viewer) method.invoke(activeEditor);

	if (viewer instanceof TreeViewer) {
	((TreeViewer) viewer).setSelection(new StructuredSelection(element), true);

	}
	}
	}

	}
	}
	catch (final PartInitException \| NoSuchMethodException \| SecurityException \| IllegalAccessException \| IllegalArgumentException \| InvocationTargetException e) {
	e.printStackTrace();
	}
	}
	}

	}

	private boolean canCollapseTreeElements() {
	return Activator.getDefault().getPreferenceStore()
	.getBoolean(PreferenceConstants.P_REDRAW_TREE_ON_SELECTION);
	}
	});

	}

	}

	@Override
	public void keyPressed(KeyEvent e) {

	if(e.character=='\b') {
	isBackButtonPressed=true;
	Object source = e.getSource();
	if (source instanceof Browser) {

	try {
	if(urls.isEmpty()==false) {
	String pop = urls.pop();

	if(urls.isEmpty()==false) {
	pop = urls.pop();
	((Browser) source).setUrl(pop);
	}
	}
	}
	catch (final Exception exception) {
	// skipping exception logging, as here goal is to still retain the same image
	}
	}

	}
	}

	@Override
	public void keyReleased(KeyEvent e) {


	}
	};

	private void addActions() {
	final String P_DRILL_DOWN = Activator.getDefault().getPreferenceStore()
	.getString(PreferenceConstants.P_DRILL_DOWN);

	boolean state = false;
	if (P_DRILL_DOWN == null) {
	state = true;
	}
	else if (P_DRILL_DOWN.equals("false")) {
	state = true;
	}
	else if (P_DRILL_DOWN.equals("true")) {
	state = false;
	}


	final IActionBars actionBars = getViewSite().getActionBars();

	final IToolBarManager toolBar = actionBars.getToolBarManager();
	final Action action = new Action("Select in Editor", IAction.AS_CHECK_BOX) {
	@Override
	public void setText(final String text) {
	super.setText(text);
	}

	@Override
	public void run() {

	if (isChecked() == false) {

	try {

	Activator.getDefault().getPreferenceStore().setValue(PreferenceConstants.P_DRILL_DOWN, true);
	}
	catch (final Exception e) {

	throw e;
	}
	}
	else if (isChecked() == true) {

	try {
	Activator.getDefault().getPreferenceStore().setValue(PreferenceConstants.P_DRILL_DOWN, false);

	}
	catch (final Exception e) {
	throw e;
	}
	}

	}


	};

	action.setChecked(state);

	toolBar.add(action);

	}

	/**
	* Passing the focus request to the viewer's control.
	*/
	@Override
	public void setFocus() {
	getViewSite().getActionBars().updateActionBars();


	}

	public Browser getBrowser() {
	return this.browser;
	}

	public EMap<String, Object> getIdObjectsMap() {
	return this.idObjectsMap;
	}

	}