Attachment #150907 for bug #30881

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Lines 1-5 Link Here

(-)ui/org/eclipse/jdt/internal/ui/typehierarchy/TypeHierarchyLifeCycle.java (-16 / +135 lines)
1	/*******************************************************************************	1	/*******************************************************************************
2	* Copyright (c) 2000, 2008 IBM Corporation and others.	2	* Copyright (c) 2000, 2009 IBM Corporation and others.
3	* All rights reserved. This program and the accompanying materials	3	* All rights reserved. This program and the accompanying materials
4	* are made available under the terms of the Eclipse Public License v1.0	4	* are made available under the terms of the Eclipse Public License v1.0
5	* which accompanies this distribution, and is available at	5	* which accompanies this distribution, and is available at
Lines 14-25 Link Here
14	import java.util.ArrayList;	14	import java.util.ArrayList;
15	import java.util.List;	15	import java.util.List;
16		16
		17	import org.eclipse.swt.widgets.Display;
		18
17	import org.eclipse.core.runtime.IProgressMonitor;	19	import org.eclipse.core.runtime.IProgressMonitor;
		20	import org.eclipse.core.runtime.IStatus;
18	import org.eclipse.core.runtime.OperationCanceledException;	21	import org.eclipse.core.runtime.OperationCanceledException;
		22	import org.eclipse.core.runtime.Status;
		23	import org.eclipse.core.runtime.jobs.Job;
19		24
20	import org.eclipse.jface.operation.IRunnableContext;	25	import org.eclipse.jface.operation.IRunnableContext;
21	import org.eclipse.jface.operation.IRunnableWithProgress;	26	import org.eclipse.jface.operation.IRunnableWithProgress;
22		27
		28	import org.eclipse.ui.progress.IWorkbenchSiteProgressService;
		29
23	import org.eclipse.jdt.core.ElementChangedEvent;	30	import org.eclipse.jdt.core.ElementChangedEvent;
24	import org.eclipse.jdt.core.IClassFile;	31	import org.eclipse.jdt.core.IClassFile;
25	import org.eclipse.jdt.core.ICompilationUnit;	32	import org.eclipse.jdt.core.ICompilationUnit;
Lines 37-42 Link Here
37	import org.eclipse.jdt.core.JavaModelException;	44	import org.eclipse.jdt.core.JavaModelException;
38		45
39	import org.eclipse.jdt.internal.corext.util.JavaModelUtil;	46	import org.eclipse.jdt.internal.corext.util.JavaModelUtil;
		47	import org.eclipse.jdt.internal.corext.util.Messages;
		48
		49	import org.eclipse.jdt.ui.JavaElementLabels;
40		50
41	import org.eclipse.jdt.internal.ui.JavaPlugin;	51	import org.eclipse.jdt.internal.ui.JavaPlugin;
42		52
Lines 52-59 Link Here
52		62
53	private List fChangeListeners;	63	private List fChangeListeners;
54		64
55	public TypeHierarchyLifeCycle() {	65	/**
		66	* The type hierarchy view part.
		67	*
		68	* @since 3.6
		69	*/
		70	private TypeHierarchyViewPart fTypeHierarchyViewPart;
		71
		72	/**
		73	* The job that runs in the background to refresh the type hierarchy.
		74	*
		75	* @since 3.6
		76	*/
		77	private Job fRefreshHierarchyJob;
		78
		79	/**
		80	* Creates the type hierarchy life cycle.
		81	*
		82	* @param part the type hierarchy view part
		83	* @since 3.6
		84	*/
		85	public TypeHierarchyLifeCycle(TypeHierarchyViewPart part) {
56	this(false);	86	this(false);
		87	fTypeHierarchyViewPart= part;
		88	fRefreshHierarchyJob= null;
57	}	89	}
58		90
59	public TypeHierarchyLifeCycle(boolean isSuperTypesOnly) {	91	public TypeHierarchyLifeCycle(boolean isSuperTypesOnly) {
Lines 98-104 Link Here
98	}	130	}
99	}	131	}
100		132
		133	/**
		134	* Refreshes the type hierarchy for the java element if it exists.
		135	*
		136	* @param element the java element for which the type hierarchy is computed
		137	* @param context the runnable context
		138	* @throws InterruptedException thrown from the <code>OperationCanceledException</code> when the monitor is canceled
		139	* @throws InvocationTargetException thrown from the <code>JavaModelException</code> if the java element does not exist or if an exception occurs while accessing its corresponding resource
		140	*/
101	public void ensureRefreshedTypeHierarchy(final IJavaElement element, IRunnableContext context) throws InvocationTargetException, InterruptedException {	141	public void ensureRefreshedTypeHierarchy(final IJavaElement element, IRunnableContext context) throws InvocationTargetException, InterruptedException {
		142	synchronized (this) {
		143	if (fRefreshHierarchyJob != null) {
		144	fRefreshHierarchyJob.cancel();
		145	try {
		146	fRefreshHierarchyJob.join();
		147	} catch (InterruptedException e) {
		148	// ignore
		149	} finally {
		150	fRefreshHierarchyJob= null;
		151	}
		152	}
		153	}
102	if (element == null \|\| !element.exists()) {	154	if (element == null \|\| !element.exists()) {
103	freeHierarchy();	155	freeHierarchy();
104	return;	156	return;
Lines 106-126 Link Here
106	boolean hierachyCreationNeeded= (fHierarchy == null \|\| !element.equals(fInputElement));	158	boolean hierachyCreationNeeded= (fHierarchy == null \|\| !element.equals(fInputElement));
107		159
108	if (hierachyCreationNeeded \|\| fHierarchyRefreshNeeded) {	160	if (hierachyCreationNeeded \|\| fHierarchyRefreshNeeded) {
109		161	if (fTypeHierarchyViewPart == null) {
110	IRunnableWithProgress op= new IRunnableWithProgress() {	162	IRunnableWithProgress op= new IRunnableWithProgress() {
111	public void run(IProgressMonitor pm) throws InvocationTargetException, InterruptedException {	163	public void run(IProgressMonitor pm) throws InvocationTargetException, InterruptedException {
112	try {	164	try {
113	doHierarchyRefresh(element, pm);	165	doHierarchyRefresh(element, pm);
114	} catch (JavaModelException e) {	166	} catch (JavaModelException e) {
115	throw new InvocationTargetException(e);	167	throw new InvocationTargetException(e);
116	} catch (OperationCanceledException e) {	168	} catch (OperationCanceledException e) {
117	throw new InterruptedException();	169	throw new InterruptedException();
		170	}
		171	}
		172	};
		173	fHierarchyRefreshNeeded= true;
		174	context.run(true, true, op);
		175	fHierarchyRefreshNeeded= false;
		176	} else {
		177	final String label= Messages.format(TypeHierarchyMessages.TypeHierarchyLifeCycle_computeInput, JavaElementLabels.getElementLabel(element, JavaElementLabels.ALL_DEFAULT));
		178	fRefreshHierarchyJob= new Job(label) {
		179	/*
		180	* @see org.eclipse.core.runtime.jobs.Job#run(org.eclipse.core.runtime.IProgressMonitor)
		181	*/
		182	public IStatus run(IProgressMonitor pm) {
		183	pm.beginTask(label, LONG);
		184	try {
		185	doHierarchyRefreshBackground(element, pm);
		186	} catch (OperationCanceledException e) {
		187	fTypeHierarchyViewPart.setCanceledViewer(false);
		188	return Status.CANCEL_STATUS;
		189	} catch (JavaModelException e) {
		190	return e.getStatus();
		191	} finally {
		192	fHierarchyRefreshNeeded= true;
		193	pm.done();
		194	}
		195	return Status.OK_STATUS;
118	}	196	}
		197	};
		198	fRefreshHierarchyJob.setUser(true);
		199	IWorkbenchSiteProgressService progressService= (IWorkbenchSiteProgressService)fTypeHierarchyViewPart.getSite()
		200	.getAdapter(IWorkbenchSiteProgressService.class);
		201	progressService.schedule(fRefreshHierarchyJob, 0);
		202
		203	}
		204	}
		205	}
		206
		207	/**
		208	* Returns <code>true</code> if the refresh job is running, <code>false</code> otherwise.
		209	*
		210	* @return <code>true</code> if the refresh job is running, <code>false</code> otherwise
		211	*
		212	* @since 3.6
		213	*/
		214	public boolean isRefreshJob() {
		215	return fRefreshHierarchyJob != null;
		216	}
		217
		218	/**
		219	* Refreshes the hierarchy in the background and updates the hierarchy viewer asynchronously in
		220	* the UI thread.
		221	*
		222	* @param element the java element on which the hierarchy is computed
		223	* @param pm the progress monitor
		224	* @throws JavaModelException if the java element does not exist or if an exception occurs while
		225	* accessing its corresponding resource.
		226	*
		227	* @since 3.6
		228	*/
		229	protected void doHierarchyRefreshBackground(final IJavaElement element, final IProgressMonitor pm) throws JavaModelException {
		230	doHierarchyRefresh(element, pm);
		231	if (!pm.isCanceled()) {
		232	Display.getDefault().asyncExec(new Runnable() {
		233	/*
		234	* @see java.lang.Runnable#run()
		235	*/
		236	public void run() {
		237	fTypeHierarchyViewPart.setViewerInput();
		238	fTypeHierarchyViewPart.updateViewers();
119	}	239	}
120	};	240	});
121	fHierarchyRefreshNeeded= true;
122	context.run(true, true, op);
123	fHierarchyRefreshNeeded= false;
124	}	241	}
125	}	242	}
126		243
Lines 160-166 Link Here
160	}	277	}
161		278
162		279
163	public synchronized void doHierarchyRefresh(IJavaElement element, IProgressMonitor pm) throws JavaModelException {	280	public void doHierarchyRefresh(IJavaElement element, IProgressMonitor pm) throws JavaModelException {
164	boolean hierachyCreationNeeded= (fHierarchy == null \|\| !element.equals(fInputElement));	281	boolean hierachyCreationNeeded= (fHierarchy == null \|\| !element.equals(fInputElement));
165	// to ensure the order of the two listeners always remove / add listeners on operations	282	// to ensure the order of the two listeners always remove / add listeners on operations
166	// on type hierarchies	283	// on type hierarchies
Lines 176-181 Link Here
176	fInputElement= element;	293	fInputElement= element;
177	} else {	294	} else {
178	fHierarchy.refresh(pm);	295	fHierarchy.refresh(pm);
		296	if (pm != null && pm.isCanceled())
		297	throw new OperationCanceledException();
179	}	298	}
180	fHierarchy.addTypeHierarchyChangedListener(this);	299	fHierarchy.addTypeHierarchyChangedListener(this);
181	JavaCore.addElementChangedListener(this);	300	JavaCore.addElementChangedListener(this);

Lines 72-77 Link Here

(-)ui/org/eclipse/jdt/internal/ui/typehierarchy/TypeHierarchyMessages.java (+1 lines)
72	public static String TypeHierarchyViewPart_ws_tooltip;	72	public static String TypeHierarchyViewPart_ws_tooltip;
73	public static String TypeHierarchyViewPart_restoreinput;	73	public static String TypeHierarchyViewPart_restoreinput;
74	public static String TypeHierarchyViewPart_layout_submenu;	74	public static String TypeHierarchyViewPart_layout_submenu;
		75	public static String TypeHierarchyLifeCycle_computeInput;
75	public static String ToggleViewAction_subtypes_label;	76	public static String ToggleViewAction_subtypes_label;
76	public static String ToggleViewAction_subtypes_tooltip;	77	public static String ToggleViewAction_subtypes_tooltip;
77	public static String ToggleViewAction_subtypes_description;	78	public static String ToggleViewAction_subtypes_description;

Lines 62-67 Link Here

(-)ui/org/eclipse/jdt/internal/ui/typehierarchy/TypeHierarchyMessages.properties (+1 lines)
62	SortByDefiningTypeAction_label=Sort by the Defining Type	62	SortByDefiningTypeAction_label=Sort by the Defining Type
63	SortByDefiningTypeAction_tooltip=Sort Methods by the Defining Type	63	SortByDefiningTypeAction_tooltip=Sort Methods by the Defining Type
64	SortByDefiningTypeAction_description=Sort methods by the defining type	64	SortByDefiningTypeAction_description=Sort methods by the defining type
		65	TypeHierarchyLifeCycle_computeInput=Computing type hierarchy of ''{0}''...
65		66
66	TypeHierarchyViewPart_error_title=Open Type Hierarchy	67	TypeHierarchyViewPart_error_title=Open Type Hierarchy
67	TypeHierarchyViewPart_createinput=Creating type hierarchy of ''{0}''...	68	TypeHierarchyViewPart_createinput=Creating type hierarchy of ''{0}''...





	private OpenAction fOpenAction;

	/**
	 * Indicates whether the restore job was canceled.
	 * 
	 * @since 3.6
	 */
	private boolean fIsRestoreJobCancel= false;

	/**
	 * Indicates whether the current viewer shown is the empty viewer.
	 * 
	 * @since 3.6
	 */
	private boolean fIsShowingEmptyViewer= true;


	public TypeHierarchyViewPart() {
		fSelectedType= null;

		fSelectInEditor= true;
		fRestoreStateJob= null;

		fHierarchyLifeCycle= new TypeHierarchyLifeCycle(this);
		fTypeHierarchyLifeCycleListener= new ITypeHierarchyLifeCycleListener() {
			public void typeHierarchyChanged(TypeHierarchyLifeCycle typeHierarchy, IType[] changedTypes) {
				doTypeHierarchyChanged(typeHierarchy, changedTypes);

		synchronized (this) {
			if (fRestoreStateJob != null) {
				fRestoreStateJob.cancel();
				fIsRestoreJobCancel= true;
				try {
					fRestoreStateJob.join();
				} catch (InterruptedException e) {

		if (inputElement == null) {
			clearInput();
		} else {
			if (!inputElement.equals(prevInput)) {
				for (int i= 0; i < fAllViewers.length; i++) {
					fAllViewers[i].setInput(null);
				}
			}
			fInputElement= inputElement;
			fNoHierarchyShownLabel.setText(Messages.format(TypeHierarchyMessages.TypeHierarchyViewPart_createinput, JavaElementLabels.getElementLabel(inputElement, JavaElementLabels.ALL_DEFAULT)));
			try {

			} catch (InvocationTargetException e) {
				ExceptionHandler.handle(e, getSite().getShell(), TypeHierarchyMessages.TypeHierarchyViewPart_exception_title, TypeHierarchyMessages.TypeHierarchyViewPart_exception_message);
				clearInput();
				return;// panic code. This code wont be executed.
			} catch (InterruptedException e) {
				fNoHierarchyShownLabel.setText(TypeHierarchyMessages.TypeHierarchyViewPart_empty);
				return;// panic code. This code wont be executed.
			}

			if (inputElement.getElementType() != IJavaElement.TYPE) {
				setHierarchyMode(HIERARCHY_MODE_CLASSIC);
			}
			updateViewers();
			fSelectInEditor= false;
			setMemberFilter(null);
			internalSelectType(null, false); // clear selection
			fIsEnableMemberFilter= false;
			if (!inputElement.equals(prevInput)) {
				updateHierarchyViewer(true);
			}
			IType root= getSelectableType(inputElement);
			internalSelectType(root, true);
			updateMethodViewer(root);
			updateToolbarButtons();
			updateToolTipAndDescription();
			showMembersInHierarchy(false);
			fPagebook.showPage(fTypeMethodsSplitter);
			fSelectInEditor= true;
		}
	}

	/**
	 * Updates the viewers, toolbar buttons and tooltip.
	 * 
	 * @since 3.6
	 */
	public void updateViewers() {
		if (!fHierarchyLifeCycle.isRefreshJob()) {
			setViewerInput();
		}
		setViewerVisibility(true);
		// turn off member filtering
		fSelectInEditor= false;
		setMemberFilter(null);
		internalSelectType(null, false); // clear selection
		fIsEnableMemberFilter= false;
		updateHierarchyViewer(true);
		IType root= getSelectableType(fInputElement);
		internalSelectType(root, true);
		updateMethodViewer(root);
		updateToolbarButtons();
		updateToolTipAndDescription();
		showMembersInHierarchy(false);
		fPagebook.showPage(fTypeMethodsSplitter);		
		fSelectInEditor= true;		
	}

	private void processOutstandingEvents() {
		Display display= getDisplay();
		if (display != null && !display.isDisposed())

	/*
	 * Toggles between the empty viewer page and the hierarchy
	 */
	public void setViewerVisibility(boolean showHierarchy) {
		if (showHierarchy) {
			fViewerbook.showPage(getCurrentViewer().getControl());
		} else {

	 * <code>updateHierarchyViewer<code> brings up the correct view and refreshes
	 * the current tree
	 */
	public void updateHierarchyViewer(final boolean doExpand) {
		if (fInputElement == null) {
			fNoHierarchyShownLabel.setText(TypeHierarchyMessages.TypeHierarchyViewPart_empty);
			fPagebook.showPage(fNoHierarchyShownLabel);

				if (!isChildVisible(fViewerbook, getCurrentViewer().getControl())) {
					setViewerVisibility(true);
				}
			} else if (!fIsShowingEmptyViewer) {//Show the empty hierarchy viewer till fresh computation is done.
				if (fIsRestoreJobCancel) {
					setCanceledViewer(false);
					fIsRestoreJobCancel= false;
				} else {
					fEmptyTypesViewer.setText(Messages.format(TypeHierarchyMessages.TypeHierarchyViewPart_nodecl, JavaElementLabels.getElementLabel(fInputElement, JavaElementLabels.ALL_DEFAULT)));
					setViewerVisibility(false);
				}
			}
		}
	}

						} catch (JavaModelException e) {
							return e.getStatus();
						} catch (OperationCanceledException e) {
							setCanceledViewer(true);
							return Status.CANCEL_STATUS;
						}
						return Status.OK_STATUS;

	private void doRestoreInBackground(final IMemento memento, final IJavaElement hierarchyInput, IProgressMonitor monitor) throws JavaModelException {
		fHierarchyLifeCycle.doHierarchyRefresh(hierarchyInput, monitor);
		final boolean doRestore= !monitor.isCanceled();
		if (doRestore) {
			Display.getDefault().asyncExec(new Runnable() {
				public void run() {
					// running async: check first if view still exists
					if (fPagebook != null && !fPagebook.isDisposed()) {
						doRestoreState(memento, hierarchyInput);
					}
						fNoHierarchyShownLabel.setText(TypeHierarchyMessages.TypeHierarchyViewPart_empty);
				}
			});
		}
	}



		}

		fWorkingSetActionGroup.restoreState(memento);
		setShowingEmptyViewer(false);
		setInputElement(input);

		Integer viewerIndex= memento.getInteger(TAG_VIEW);

	}

	/**
	 * Sets whether the previous viewer shown was an empty viewer.
	 * 
	 * @param isShowingEmptyViewer <code>true</code> if the previous viewer was empty,
	 *            <code>false</code> otherwise
	 * 
	 * @since 3.6
	 */
	private void setShowingEmptyViewer(boolean isShowingEmptyViewer) {
		fIsShowingEmptyViewer= isShowingEmptyViewer;

	}

	/**
	 * View part becomes visible.
	 *
	 * @param isVisible <code>true</code> if visible

		fNeedRefresh= false;
	}

	/**
	 * Sets the empty viewer after the canceled job in the display thread.
	 * @param isRestoreJob <code>true</code> when restore job is canceled, <code>false</code> otherwise
	 *
	 * @since 3.6
	 */
	public void setCanceledViewer(final boolean isRestoreJob) {
		Display.getDefault().asyncExec(new Runnable() {
			public void run() {
				if (isRestoreJob) {
					fNoHierarchyShownLabel.setText(TypeHierarchyMessages.TypeHierarchyViewPart_empty);
				} else {
					setViewerVisibility(false);
					String label= "Type Hierarchy computation canceled"; //$NON-NLS-1$
					fEmptyTypesViewer.setText(""); //$NON-NLS-1$
					updateMethodViewer(null);
					setContentDescription(label);
					setTitleToolTip(""); //$NON-NLS-1$
					for (int i= 0; i < fViewActions.length; i++) {
						fViewActions[i].setEnabled(false);					
					}
				}
				setShowingEmptyViewer(true);
			}
		});
	}

	/**
	 * Returns the type hierarchy life cycle.
	 *
	 * @return the type hierarchy life cycle
	 *
	 * @since 3.6
	 */
	public TypeHierarchyLifeCycle getTypeHierarchyLifeCycle() {
		return fHierarchyLifeCycle;

	}

	/**
	 * Sets the input for all the hierarchy viewers with their respective viewer instances.
	 * 
	 * @since 3.6
	 */
	public void setViewerInput() {
		for (int i= 0; i < fAllViewers.length; i++) {
			fAllViewers[i].setInput(fAllViewers[i]);
		}
		setShowingEmptyViewer(false);
	}	
}

Return to bug 30881

Lines 242-247 Link Here

(-)ui/org/eclipse/jdt/internal/ui/typehierarchy/TypeHierarchyViewPart.java (-33 / +133 lines)
242		242
243	private OpenAction fOpenAction;	243	private OpenAction fOpenAction;
244		244
		245	/**
		246	* Indicates whether the restore job was canceled.
		247	*
		248	* @since 3.6
		249	*/
		250	private boolean fIsRestoreJobCancel= false;
		251
		252	/**
		253	* Indicates whether the current viewer shown is the empty viewer.
		254	*
		255	* @since 3.6
		256	*/
		257	private boolean fIsShowingEmptyViewer= true;
		258
245		259
246	public TypeHierarchyViewPart() {	260	public TypeHierarchyViewPart() {
247	fSelectedType= null;	261	fSelectedType= null;
Lines 251-257 Link Here
251	fSelectInEditor= true;	265	fSelectInEditor= true;
252	fRestoreStateJob= null;	266	fRestoreStateJob= null;
253		267
254	fHierarchyLifeCycle= new TypeHierarchyLifeCycle();	268	fHierarchyLifeCycle= new TypeHierarchyLifeCycle(this);
255	fTypeHierarchyLifeCycleListener= new ITypeHierarchyLifeCycleListener() {	269	fTypeHierarchyLifeCycleListener= new ITypeHierarchyLifeCycleListener() {
256	public void typeHierarchyChanged(TypeHierarchyLifeCycle typeHierarchy, IType[] changedTypes) {	270	public void typeHierarchyChanged(TypeHierarchyLifeCycle typeHierarchy, IType[] changedTypes) {
257	doTypeHierarchyChanged(typeHierarchy, changedTypes);	271	doTypeHierarchyChanged(typeHierarchy, changedTypes);
Lines 511-516 Link Here
511	synchronized (this) {	525	synchronized (this) {
512	if (fRestoreStateJob != null) {	526	if (fRestoreStateJob != null) {
513	fRestoreStateJob.cancel();	527	fRestoreStateJob.cancel();
		528	fIsRestoreJobCancel= true;
514	try {	529	try {
515	fRestoreStateJob.join();	530	fRestoreStateJob.join();
516	} catch (InterruptedException e) {	531	} catch (InterruptedException e) {
Lines 529-534 Link Here
529	if (inputElement == null) {	544	if (inputElement == null) {
530	clearInput();	545	clearInput();
531	} else {	546	} else {
		547	if (!inputElement.equals(prevInput)) {
		548	for (int i= 0; i < fAllViewers.length; i++) {
		549	fAllViewers[i].setInput(null);
		550	}
		551	}
532	fInputElement= inputElement;	552	fInputElement= inputElement;
533	fNoHierarchyShownLabel.setText(Messages.format(TypeHierarchyMessages.TypeHierarchyViewPart_createinput, JavaElementLabels.getElementLabel(inputElement, JavaElementLabels.ALL_DEFAULT)));	553	fNoHierarchyShownLabel.setText(Messages.format(TypeHierarchyMessages.TypeHierarchyViewPart_createinput, JavaElementLabels.getElementLabel(inputElement, JavaElementLabels.ALL_DEFAULT)));
534	try {	554	try {
Lines 537-570 Link Here
537	} catch (InvocationTargetException e) {	557	} catch (InvocationTargetException e) {
538	ExceptionHandler.handle(e, getSite().getShell(), TypeHierarchyMessages.TypeHierarchyViewPart_exception_title, TypeHierarchyMessages.TypeHierarchyViewPart_exception_message);	558	ExceptionHandler.handle(e, getSite().getShell(), TypeHierarchyMessages.TypeHierarchyViewPart_exception_title, TypeHierarchyMessages.TypeHierarchyViewPart_exception_message);
539	clearInput();	559	clearInput();
540	return;	560	return;// panic code. This code wont be executed.
541	} catch (InterruptedException e) {	561	} catch (InterruptedException e) {
542	fNoHierarchyShownLabel.setText(TypeHierarchyMessages.TypeHierarchyViewPart_empty);	562	fNoHierarchyShownLabel.setText(TypeHierarchyMessages.TypeHierarchyViewPart_empty);
543	return;	563	return;// panic code. This code wont be executed.
544	}	564	}
545		565
546	if (inputElement.getElementType() != IJavaElement.TYPE) {	566	if (inputElement.getElementType() != IJavaElement.TYPE) {
547	setHierarchyMode(HIERARCHY_MODE_CLASSIC);	567	setHierarchyMode(HIERARCHY_MODE_CLASSIC);
548	}	568	}
549	// turn off member filtering	569	updateViewers();
550	fSelectInEditor= false;
551	setMemberFilter(null);
552	internalSelectType(null, false); // clear selection
553	fIsEnableMemberFilter= false;
554	if (!inputElement.equals(prevInput)) {
555	updateHierarchyViewer(true);
556	}
557	IType root= getSelectableType(inputElement);
558	internalSelectType(root, true);
559	updateMethodViewer(root);
560	updateToolbarButtons();
561	updateToolTipAndDescription();
562	showMembersInHierarchy(false);
563	fPagebook.showPage(fTypeMethodsSplitter);
564	fSelectInEditor= true;
565	}	570	}
566	}	571	}
567		572
		573	/**
		574	* Updates the viewers, toolbar buttons and tooltip.
		575	*
		576	* @since 3.6
		577	*/
		578	public void updateViewers() {
		579	if (!fHierarchyLifeCycle.isRefreshJob()) {
		580	setViewerInput();
		581	}
		582	setViewerVisibility(true);
		583	// turn off member filtering
		584	fSelectInEditor= false;
		585	setMemberFilter(null);
		586	internalSelectType(null, false); // clear selection
		587	fIsEnableMemberFilter= false;
		588	updateHierarchyViewer(true);
		589	IType root= getSelectableType(fInputElement);
		590	internalSelectType(root, true);
		591	updateMethodViewer(root);
		592	updateToolbarButtons();
		593	updateToolTipAndDescription();
		594	showMembersInHierarchy(false);
		595	fPagebook.showPage(fTypeMethodsSplitter);
		596	fSelectInEditor= true;
		597	}
		598
568	private void processOutstandingEvents() {	599	private void processOutstandingEvents() {
569	Display display= getDisplay();	600	Display display= getDisplay();
570	if (display != null && !display.isDisposed())	601	if (display != null && !display.isDisposed())
Lines 1086-1092 Link Here
1086	/*	1117	/*
1087	* Toggles between the empty viewer page and the hierarchy	1118	* Toggles between the empty viewer page and the hierarchy
1088	*/	1119	*/
1089	private void setViewerVisibility(boolean showHierarchy) {	1120	public void setViewerVisibility(boolean showHierarchy) {
1090	if (showHierarchy) {	1121	if (showHierarchy) {
1091	fViewerbook.showPage(getCurrentViewer().getControl());	1122	fViewerbook.showPage(getCurrentViewer().getControl());
1092	} else {	1123	} else {
Lines 1124-1130 Link Here
1124	* <code>updateHierarchyViewer<code> brings up the correct view and refreshes	1155	* <code>updateHierarchyViewer<code> brings up the correct view and refreshes
1125	* the current tree	1156	* the current tree
1126	*/	1157	*/
1127	private void updateHierarchyViewer(final boolean doExpand) {	1158	public void updateHierarchyViewer(final boolean doExpand) {
1128	if (fInputElement == null) {	1159	if (fInputElement == null) {
1129	fNoHierarchyShownLabel.setText(TypeHierarchyMessages.TypeHierarchyViewPart_empty);	1160	fNoHierarchyShownLabel.setText(TypeHierarchyMessages.TypeHierarchyViewPart_empty);
1130	fPagebook.showPage(fNoHierarchyShownLabel);	1161	fPagebook.showPage(fNoHierarchyShownLabel);
Lines 1139-1147 Link Here
1139	if (!isChildVisible(fViewerbook, getCurrentViewer().getControl())) {	1170	if (!isChildVisible(fViewerbook, getCurrentViewer().getControl())) {
1140	setViewerVisibility(true);	1171	setViewerVisibility(true);
1141	}	1172	}
1142	} else {	1173	} else if (!fIsShowingEmptyViewer) {//Show the empty hierarchy viewer till fresh computation is done.
1143	fEmptyTypesViewer.setText(Messages.format(TypeHierarchyMessages.TypeHierarchyViewPart_nodecl, JavaElementLabels.getElementLabel(fInputElement, JavaElementLabels.ALL_DEFAULT)));	1174	if (fIsRestoreJobCancel) {
1144	setViewerVisibility(false);	1175	setCanceledViewer(false);
		1176	fIsRestoreJobCancel= false;
		1177	} else {
		1178	fEmptyTypesViewer.setText(Messages.format(TypeHierarchyMessages.TypeHierarchyViewPart_nodecl, JavaElementLabels.getElementLabel(fInputElement, JavaElementLabels.ALL_DEFAULT)));
		1179	setViewerVisibility(false);
		1180	}
1145	}	1181	}
1146	}	1182	}
1147	}	1183	}
Lines 1566-1571 Link Here
1566	} catch (JavaModelException e) {	1602	} catch (JavaModelException e) {
1567	return e.getStatus();	1603	return e.getStatus();
1568	} catch (OperationCanceledException e) {	1604	} catch (OperationCanceledException e) {
		1605	setCanceledViewer(true);
1569	return Status.CANCEL_STATUS;	1606	return Status.CANCEL_STATUS;
1570	}	1607	}
1571	return Status.OK_STATUS;	1608	return Status.OK_STATUS;
Lines 1579-1595 Link Here
1579	private void doRestoreInBackground(final IMemento memento, final IJavaElement hierarchyInput, IProgressMonitor monitor) throws JavaModelException {	1616	private void doRestoreInBackground(final IMemento memento, final IJavaElement hierarchyInput, IProgressMonitor monitor) throws JavaModelException {
1580	fHierarchyLifeCycle.doHierarchyRefresh(hierarchyInput, monitor);	1617	fHierarchyLifeCycle.doHierarchyRefresh(hierarchyInput, monitor);
1581	final boolean doRestore= !monitor.isCanceled();	1618	final boolean doRestore= !monitor.isCanceled();
1582	Display.getDefault().asyncExec(new Runnable() {	1619	if (doRestore) {
1583	public void run() {	1620	Display.getDefault().asyncExec(new Runnable() {
1584	// running async: check first if view still exists	1621	public void run() {
1585	if (fPagebook != null && !fPagebook.isDisposed()) {	1622	// running async: check first if view still exists
1586	if (doRestore)	1623	if (fPagebook != null && !fPagebook.isDisposed()) {
1587	doRestoreState(memento, hierarchyInput);	1624	doRestoreState(memento, hierarchyInput);
1588	else	1625	}
1589	fNoHierarchyShownLabel.setText(TypeHierarchyMessages.TypeHierarchyViewPart_empty);
1590	}	1626	}
1591	}	1627	});
1592	});	1628	}
1593	}	1629	}
1594		1630
1595		1631
Lines 1602-1607 Link Here
1602	}	1638	}
1603		1639
1604	fWorkingSetActionGroup.restoreState(memento);	1640	fWorkingSetActionGroup.restoreState(memento);
		1641	setShowingEmptyViewer(false);
1605	setInputElement(input);	1642	setInputElement(input);
1606		1643
1607	Integer viewerIndex= memento.getInteger(TAG_VIEW);	1644	Integer viewerIndex= memento.getInteger(TAG_VIEW);
Lines 1640-1645 Link Here
1640	}	1677	}
1641		1678
1642	/**	1679	/**
		1680	* Sets whether the previous viewer shown was an empty viewer.
		1681	*
		1682	* @param isShowingEmptyViewer <code>true</code> if the previous viewer was empty,
		1683	* <code>false</code> otherwise
		1684	*
		1685	* @since 3.6
		1686	*/
		1687	private void setShowingEmptyViewer(boolean isShowingEmptyViewer) {
		1688	fIsShowingEmptyViewer= isShowingEmptyViewer;
		1689
		1690	}
		1691
		1692	/**
1643	* View part becomes visible.	1693	* View part becomes visible.
1644	*	1694	*
1645	* @param isVisible <code>true</code> if visible	1695	* @param isVisible <code>true</code> if visible
Lines 1731-1734 Link Here
1731	fNeedRefresh= false;	1781	fNeedRefresh= false;
1732	}	1782	}
1733		1783
		1784	/**
		1785	* Sets the empty viewer after the canceled job in the display thread.
		1786	* @param isRestoreJob <code>true</code> when restore job is canceled, <code>false</code> otherwise
		1787	*
		1788	* @since 3.6
		1789	*/
		1790	public void setCanceledViewer(final boolean isRestoreJob) {
		1791	Display.getDefault().asyncExec(new Runnable() {
		1792	public void run() {
		1793	if (isRestoreJob) {
		1794	fNoHierarchyShownLabel.setText(TypeHierarchyMessages.TypeHierarchyViewPart_empty);
		1795	} else {
		1796	setViewerVisibility(false);
		1797	String label= "Type Hierarchy computation canceled"; //$NON-NLS-1$
		1798	fEmptyTypesViewer.setText(""); //$NON-NLS-1$
		1799	updateMethodViewer(null);
		1800	setContentDescription(label);
		1801	setTitleToolTip(""); //$NON-NLS-1$
		1802	for (int i= 0; i < fViewActions.length; i++) {
		1803	fViewActions[i].setEnabled(false);
		1804	}
		1805	}
		1806	setShowingEmptyViewer(true);
		1807	}
		1808	});
		1809	}
		1810
		1811	/**
		1812	* Returns the type hierarchy life cycle.
		1813	*
		1814	* @return the type hierarchy life cycle
		1815	*
		1816	* @since 3.6
		1817	*/
		1818	public TypeHierarchyLifeCycle getTypeHierarchyLifeCycle() {
		1819	return fHierarchyLifeCycle;
		1820
		1821	}
		1822
		1823	/**
		1824	* Sets the input for all the hierarchy viewers with their respective viewer instances.
		1825	*
		1826	* @since 3.6
		1827	*/
		1828	public void setViewerInput() {
		1829	for (int i= 0; i < fAllViewers.length; i++) {
		1830	fAllViewers[i].setInput(fAllViewers[i]);
		1831	}
		1832	setShowingEmptyViewer(false);
		1833	}
1734	}	1834	}