-/*******************************************************************************\r
- * Copyright (c) 2007, 2010 Association for Decentralized Information Management\r
- * in Industry THTH ry.\r
- * All rights reserved. This program and the accompanying materials\r
- * are made available under the terms of the Eclipse Public License v1.0\r
- * which accompanies this distribution, and is available at\r
- * http://www.eclipse.org/legal/epl-v10.html\r
- *\r
- * Contributors:\r
- * VTT Technical Research Centre of Finland - initial API and implementation\r
- *******************************************************************************/\r
-package org.simantics.browsing.ui.platform;\r
-\r
-import java.util.ArrayList;\r
-import java.util.Collection;\r
-import java.util.HashMap;\r
-import java.util.HashSet;\r
-import java.util.Map;\r
-import java.util.Set;\r
-import java.util.function.Consumer;\r
-\r
-import org.eclipse.core.runtime.IAdaptable;\r
-import org.eclipse.jface.viewers.ISelection;\r
-import org.eclipse.swt.SWT;\r
-import org.eclipse.swt.widgets.Composite;\r
-import org.eclipse.swt.widgets.Control;\r
-import org.eclipse.ui.IPartListener;\r
-import org.eclipse.ui.IWorkbenchPart;\r
-import org.eclipse.ui.IWorkbenchPartSite;\r
-import org.eclipse.ui.part.IPageBookViewPage;\r
-import org.eclipse.ui.part.Page;\r
-import org.simantics.browsing.ui.GraphExplorer;\r
-import org.simantics.browsing.ui.swt.IVariablesPage;\r
-import org.simantics.browsing.ui.swt.widgets.GraphExplorerComposite;\r
-import org.simantics.browsing.ui.swt.widgets.GraphExplorerComposite.InputSource;\r
-import org.simantics.db.ReadGraph;\r
-import org.simantics.db.Resource;\r
-import org.simantics.db.common.ResourceArray;\r
-import org.simantics.db.common.utils.NameUtils;\r
-import org.simantics.db.exception.AdaptionException;\r
-import org.simantics.db.exception.DatabaseException;\r
-import org.simantics.db.management.ISessionContext;\r
-import org.simantics.db.management.ISessionContextChangedListener;\r
-import org.simantics.db.management.ISessionContextProvider;\r
-import org.simantics.db.management.SessionContextChangedEvent;\r
-import org.simantics.db.procedure.Listener;\r
-import org.simantics.db.request.Read;\r
-import org.simantics.ui.utils.ResourceAdaptionUtils;\r
-import org.simantics.utils.ui.AdaptionUtils;\r
-import org.simantics.utils.ui.ErrorLogger;\r
-\r
-/**\r
- * <p>\r
- * Subclasses may extend or reimplement the following methods as required:\r
- * <ul>\r
- * <li><code>createPageControls</code> - to create the page's controls</li>\r
- * <li><code>getControl</code> - to retrieve the page's control</li>\r
- * <li><code>setFocus</code> - implement to accept focus</li>\r
- * <li><code>sourceSelectionChanged</code> - puts the incoming ISelection into use in this page</li>\r
- * <li><code>sourcePartClosed</code> - cleans up the page controls after a current selection source part has been closed</li>\r
- * <li><code>dispose</code> - extend to provide additional cleanup</li>\r
- * <li><code>setActionBars</code> - reimplement to make contributions</li>\r
- * <li><code>makeContributions</code> - this method exists to support previous versions</li>\r
- * <li><code>setActionBars</code> - this method exists to support previous versions</li>\r
- * <li><code>init</code> - extend to provide additional setup</li>\r
- * <li><code>sessionContextChanged</code> - reimplement to take actions when the source database session changes</li>\r
- * </ul>\r
- * </p>\r
- * \r
- * @author Tuukka Lehtonen\r
- */\r
-public class VariablesPage extends Page implements IPageBookViewPage, IVariablesPage {\r
-\r
- protected static final int MAX_SELECTION_LENGTH_TO_SHOW = 5;\r
-\r
- protected ISessionContext sessionContext;\r
-\r
- protected GraphExplorerComposite explorer;\r
-\r
- /**\r
- * @param site the workbench part site that contains this page or\r
- * <code>null</code> if there is no site, i.e. the page is within a\r
- * dialog or a plain shell.\r
- */\r
- public VariablesPage(IWorkbenchPartSite site) {\r
- this.site = site;\r
- }\r
-\r
- /**\r
- * @param site the workbench part site that contains this page or\r
- * <code>null</code> if there is no site, i.e. the page is within a\r
- * dialog or a plain shell.\r
- * @param adapter must provide an adapter for\r
- * <code>ISessionContextProvider.class</code>\r
- */\r
- public VariablesPage(IWorkbenchPartSite site, IAdaptable adapter) {\r
- this(site);\r
- setAdapter(adapter);\r
- }\r
-\r
- @Override\r
- public void dispose() {\r
- \r
- // Stop listening for title changes.\r
- if (currentPartNameListener != null)\r
- currentPartNameListener.dispose();\r
-\r
- if (adapter != null) {\r
- ISessionContextProvider contextProvider = getSessionContextProvider();\r
- contextProvider.removeContextChangedListener(contextChangeListener);\r
- }\r
-\r
- if (sourcePart != null) {\r
- sourcePart.getSite().getPage().removePartListener(partListener);\r
- sourcePart = null;\r
- }\r
-\r
- site = null;\r
- adapter = null;\r
- explorer = null;\r
- sessionContext = null;\r
- \r
- }\r
-\r
- protected ISessionContextProvider getSessionContextProvider() {\r
- return (ISessionContextProvider) getAdapter().getAdapter(ISessionContextProvider.class);\r
- }\r
-\r
- protected ISessionContext getSessionContext() {\r
- return sessionContext;\r
- }\r
-\r
- @Override\r
- public final void createControl(Composite parent) {\r
- createPageControls(parent);\r
-\r
- // Attach to current session context provider to keep the UI intact even\r
- // when the current UI session changes.\r
- ISessionContextProvider contextProvider = getSessionContextProvider();\r
- contextProvider.addContextChangedListener(contextChangeListener);\r
- setSessionContext(contextProvider.getSessionContext());\r
- }\r
-\r
- /**\r
- * Override to customize the UI component created on this page.\r
- * \r
- * @param parent\r
- */\r
- protected void createPageControls(Composite parent) {\r
-\r
- Map<String, Object> args = new HashMap<String, Object>();\r
- Set<String> browseContexts = new HashSet<String>();\r
- \r
- browseContexts.add("org.simantics.browsing.ui.graph.variablesView");\r
- \r
- args.put("browseContexts", browseContexts);\r
- \r
- explorer = new GraphExplorerComposite(args, site, parent, SWT.NONE);\r
- \r
- explorer.setInputSource(new InputSource() {\r
-\r
- @Override\r
- public Object get(ISessionContext ctx, Object selection) {\r
-\r
- final Resource input = AdaptionUtils.adaptToSingle(selection, Resource.class);\r
- if(input == null) {\r
- return GraphExplorer.EMPTY_INPUT;\r
- }\r
- \r
- final VariablePrefix prefix = AdaptionUtils.adaptToSingle(selection, VariablePrefix.class);\r
- if(prefix == null) {\r
- return new VariablesInput(null, input);\r
- } else {\r
- return new VariablesInput(prefix.getPrefix(), input);\r
- }\r
-\r
- }\r
- \r
- });\r
- \r
- }\r
- \r
-\r
- /**\r
- * @param newContext\r
- */\r
- protected final void setSessionContext(ISessionContext newContext) {\r
- ISessionContext oldContext = this.sessionContext;\r
- this.sessionContext = newContext;\r
-// System.out.println("AbstractPropertyPage.setSessionContext: " + oldContext + " -> " + newContext);\r
-\r
- sessionContextChanged(oldContext, newContext);\r
- }\r
-\r
- /**\r
- * @param oldContext\r
- * @param newContext\r
- */\r
- protected void sessionContextChanged(ISessionContext oldContext, ISessionContext newContext) {\r
- explorer.applySessionContext(newContext);\r
-// explorer.setSessionContext(newContext);\r
- }\r
-\r
- protected ISessionContextChangedListener contextChangeListener = new ISessionContextChangedListener() {\r
- @Override\r
- public void sessionContextChanged(SessionContextChangedEvent event) {\r
- setSessionContext(event.getNewValue());\r
- }\r
- };\r
-\r
- @Override\r
- public Control getControl() {\r
- return (explorer != null) ? explorer : null;\r
- }\r
-\r
- @Override\r
- public ISelection getSelection() {\r
-// if (!explorer.isDisposed()) {\r
-// return explorer.getSelection();\r
-// }\r
- return null;\r
- }\r
-\r
- /**\r
- * Sets focus to a part in the page.\r
- * @see org.eclipse.ui.part.Page#setFocus()\r
- */\r
- @Override\r
- public void setFocus() {\r
-// if (explorer != null && !explorer.isDisposed()) {\r
-// explorer.requestFocus();\r
-// }\r
- }\r
-\r
- protected void sourcePartClosed(IWorkbenchPart part) {\r
-// if (!explorer.isDisposed()) {\r
-// explorer.setInput(StructuredSelection.EMPTY, false);\r
-// }\r
- }\r
-\r
- protected void sourceSelectionChanged(ISelection selection) {\r
- if (!explorer.isDisposed()) {\r
- explorer.setInput(selection, false);\r
- }\r
- }\r
-\r
- static class PartNameListener implements Listener<String> {\r
- private boolean disposed = false;\r
- private final Consumer<String> updateCallback;\r
-\r
- public PartNameListener(Consumer<String> updateCallback) {\r
- assert updateCallback != null;\r
- this.updateCallback = updateCallback;\r
- }\r
-\r
- public void dispose() {\r
- disposed = true;\r
- }\r
-\r
- @Override\r
- public boolean isDisposed() {\r
- return disposed;\r
- }\r
-\r
- @Override\r
- public void execute(String result) {\r
- //System.out.println("part name changed: " + result);\r
- updateCallback.accept(result);\r
- }\r
-\r
- @Override\r
- public void exception(Throwable t) {\r
- ErrorLogger.defaultLogError(t);\r
- }\r
- }\r
-\r
- PartNameListener currentPartNameListener = null;\r
-\r
- @Override\r
- public void updatePartName(final ISelection forSelection, Consumer<String> updateCallback) {\r
- PartNameListener oldListener = currentPartNameListener;\r
- PartNameListener newListener = new PartNameListener(updateCallback);\r
- if (oldListener != null)\r
- oldListener.dispose();\r
-\r
- if (sessionContext != null) {\r
- sessionContext.getSession().asyncRequest(new Read<String>() {\r
- @Override\r
- public String perform(ReadGraph graph) throws DatabaseException {\r
- return computeTitle(graph, forSelection);\r
- }\r
- }, newListener);\r
- }\r
- }\r
-\r
- protected static String safeGetName(ReadGraph g, Resource r) throws DatabaseException {\r
- try {\r
- return g.adapt(r, String.class);\r
- } catch (AdaptionException e) {\r
- return NameUtils.getSafeName(g, r);\r
- }\r
- }\r
-\r
- protected String computeTitle(ReadGraph graph, ISelection selection) throws DatabaseException {\r
- boolean sameTypes = true;\r
-\r
- try {\r
-\r
- final ResourceArray[] ras = ResourceAdaptionUtils.toResourceArrays(selection);\r
- if (ras.length == 0)\r
- return null;\r
-\r
- // Check if all the input resource are of the same type.\r
- Collection<Resource> types = null;\r
- for (ResourceArray ra : ras) {\r
- if (ra.isEmpty()) {\r
- return null;\r
- }\r
- if (types == null) {\r
- types = graph.getPrincipalTypes(ra.resources[0]);\r
- } else {\r
- Collection<Resource> ts = graph.getPrincipalTypes(ra.resources[0]);\r
- ts.removeAll(types);\r
- if (!ts.isEmpty()) {\r
- sameTypes = false;\r
- break;\r
- }\r
- }\r
- }\r
- if (sameTypes) {\r
- // If the resource no longer exists, provide default name only.\r
- if (!graph.hasStatement(ras[0].resources[0])) {\r
- return null;\r
- }\r
-\r
- String name = safeGetName(graph, ras[0].resources[0]);\r
- if (ras.length > 1)\r
- name += " [" + ras.length +"]";\r
- return name;\r
- } else {\r
- Collection<String> names = new ArrayList<String>(ras.length);\r
- boolean truncate = ras.length > MAX_SELECTION_LENGTH_TO_SHOW;\r
- int end = Math.min(ras.length, MAX_SELECTION_LENGTH_TO_SHOW);\r
- int missing = ras.length - end;\r
- for (int i = 0; i < end; ++i) {\r
- // If the resource no longer exists, provide default name only.\r
- if (!graph.hasStatement(ras[i].resources[0]))\r
- continue;\r
-\r
- names.add(safeGetName(graph, ras[i].resources[0]));\r
- }\r
- if (names.isEmpty()) {\r
- return null;\r
- }\r
-\r
- if (truncate)\r
- names.add("+ " + missing + " more...");\r
-\r
- String name = names.toString();\r
- return name;\r
- }\r
-\r
- } catch (Throwable t) {\r
- t.printStackTrace();\r
- return null;\r
- }\r
-\r
- }\r
-\r
- /**\r
- * Part listener which cleans up this page when the source part is closed.\r
- * This is hooked only when there is a source part.\r
- */\r
- private class PartListener implements IPartListener {\r
- public void partActivated(IWorkbenchPart part) {\r
- }\r
-\r
- public void partBroughtToTop(IWorkbenchPart part) {\r
- }\r
-\r
- public void partClosed(IWorkbenchPart part) {\r
- if (sourcePart == part) {\r
- sourcePart = null;\r
- sourcePartClosed(part);\r
- }\r
- }\r
-\r
- public void partDeactivated(IWorkbenchPart part) {\r
- }\r
-\r
- public void partOpened(IWorkbenchPart part) {\r
- }\r
- }\r
-\r
- private PartListener partListener = new PartListener();\r
-\r
- protected IWorkbenchPartSite site;\r
-\r
- private IWorkbenchPart sourcePart;\r
-\r
- protected IAdaptable adapter;\r
-\r
- @Override\r
- public void setAdapter(IAdaptable adapter) {\r
- assert adapter != null;\r
- this.adapter = adapter;\r
- }\r
-\r
- public IAdaptable getAdapter() {\r
- assert adapter != null;\r
- return adapter;\r
- }\r
-\r
- @Override\r
- public void selectionChanged(IWorkbenchPart part, ISelection selection) {\r
- if (getControl() == null) {\r
- return;\r
- }\r
-\r
- if (sourcePart != null) {\r
- sourcePart.getSite().getPage().removePartListener(partListener);\r
- sourcePart = null;\r
- }\r
-\r
- // change the viewer input since the workbench selection has changed.\r
- sourceSelectionChanged(selection);\r
- sourcePart = part;\r
-\r
- if (sourcePart != null) {\r
- sourcePart.getSite().getPage().addPartListener(partListener);\r
- }\r
- }\r
- \r
-}\r
+/*******************************************************************************
+ * Copyright (c) 2007, 2010 Association for Decentralized Information Management
+ * in Industry THTH ry.
+ * 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:
+ * VTT Technical Research Centre of Finland - initial API and implementation
+ *******************************************************************************/
+package org.simantics.browsing.ui.platform;
+
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.Map;
+import java.util.Set;
+import java.util.function.Consumer;
+
+import org.eclipse.core.runtime.IAdaptable;
+import org.eclipse.jface.viewers.ISelection;
+import org.eclipse.swt.SWT;
+import org.eclipse.swt.widgets.Composite;
+import org.eclipse.swt.widgets.Control;
+import org.eclipse.ui.IPartListener;
+import org.eclipse.ui.IWorkbenchPart;
+import org.eclipse.ui.IWorkbenchPartSite;
+import org.eclipse.ui.part.IPageBookViewPage;
+import org.eclipse.ui.part.Page;
+import org.simantics.browsing.ui.GraphExplorer;
+import org.simantics.browsing.ui.swt.IVariablesPage;
+import org.simantics.browsing.ui.swt.widgets.GraphExplorerComposite;
+import org.simantics.browsing.ui.swt.widgets.GraphExplorerComposite.InputSource;
+import org.simantics.db.ReadGraph;
+import org.simantics.db.Resource;
+import org.simantics.db.common.ResourceArray;
+import org.simantics.db.common.utils.NameUtils;
+import org.simantics.db.exception.AdaptionException;
+import org.simantics.db.exception.DatabaseException;
+import org.simantics.db.management.ISessionContext;
+import org.simantics.db.management.ISessionContextChangedListener;
+import org.simantics.db.management.ISessionContextProvider;
+import org.simantics.db.management.SessionContextChangedEvent;
+import org.simantics.db.procedure.Listener;
+import org.simantics.db.request.Read;
+import org.simantics.ui.utils.ResourceAdaptionUtils;
+import org.simantics.utils.ui.AdaptionUtils;
+import org.simantics.utils.ui.ErrorLogger;
+
+/**
+ * <p>
+ * Subclasses may extend or reimplement the following methods as required:
+ * <ul>
+ * <li><code>createPageControls</code> - to create the page's controls</li>
+ * <li><code>getControl</code> - to retrieve the page's control</li>
+ * <li><code>setFocus</code> - implement to accept focus</li>
+ * <li><code>sourceSelectionChanged</code> - puts the incoming ISelection into use in this page</li>
+ * <li><code>sourcePartClosed</code> - cleans up the page controls after a current selection source part has been closed</li>
+ * <li><code>dispose</code> - extend to provide additional cleanup</li>
+ * <li><code>setActionBars</code> - reimplement to make contributions</li>
+ * <li><code>makeContributions</code> - this method exists to support previous versions</li>
+ * <li><code>setActionBars</code> - this method exists to support previous versions</li>
+ * <li><code>init</code> - extend to provide additional setup</li>
+ * <li><code>sessionContextChanged</code> - reimplement to take actions when the source database session changes</li>
+ * </ul>
+ * </p>
+ *
+ * @author Tuukka Lehtonen
+ */
+public class VariablesPage extends Page implements IPageBookViewPage, IVariablesPage {
+
+ protected static final int MAX_SELECTION_LENGTH_TO_SHOW = 5;
+
+ protected ISessionContext sessionContext;
+
+ protected GraphExplorerComposite explorer;
+
+ /**
+ * @param site the workbench part site that contains this page or
+ * <code>null</code> if there is no site, i.e. the page is within a
+ * dialog or a plain shell.
+ */
+ public VariablesPage(IWorkbenchPartSite site) {
+ this.site = site;
+ }
+
+ /**
+ * @param site the workbench part site that contains this page or
+ * <code>null</code> if there is no site, i.e. the page is within a
+ * dialog or a plain shell.
+ * @param adapter must provide an adapter for
+ * <code>ISessionContextProvider.class</code>
+ */
+ public VariablesPage(IWorkbenchPartSite site, IAdaptable adapter) {
+ this(site);
+ setAdapter(adapter);
+ }
+
+ @Override
+ public void dispose() {
+
+ // Stop listening for title changes.
+ if (currentPartNameListener != null)
+ currentPartNameListener.dispose();
+
+ if (adapter != null) {
+ ISessionContextProvider contextProvider = getSessionContextProvider();
+ contextProvider.removeContextChangedListener(contextChangeListener);
+ }
+
+ if (sourcePart != null) {
+ sourcePart.getSite().getPage().removePartListener(partListener);
+ sourcePart = null;
+ }
+
+ site = null;
+ adapter = null;
+ explorer = null;
+ sessionContext = null;
+
+ }
+
+ protected ISessionContextProvider getSessionContextProvider() {
+ return (ISessionContextProvider) getAdapter().getAdapter(ISessionContextProvider.class);
+ }
+
+ protected ISessionContext getSessionContext() {
+ return sessionContext;
+ }
+
+ @Override
+ public final void createControl(Composite parent) {
+ createPageControls(parent);
+
+ // Attach to current session context provider to keep the UI intact even
+ // when the current UI session changes.
+ ISessionContextProvider contextProvider = getSessionContextProvider();
+ contextProvider.addContextChangedListener(contextChangeListener);
+ setSessionContext(contextProvider.getSessionContext());
+ }
+
+ /**
+ * Override to customize the UI component created on this page.
+ *
+ * @param parent
+ */
+ protected void createPageControls(Composite parent) {
+
+ Map<String, Object> args = new HashMap<String, Object>();
+ Set<String> browseContexts = new HashSet<String>();
+
+ browseContexts.add("org.simantics.browsing.ui.graph.variablesView");
+
+ args.put("browseContexts", browseContexts);
+
+ explorer = new GraphExplorerComposite(args, site, parent, SWT.NONE);
+
+ explorer.setInputSource(new InputSource() {
+
+ @Override
+ public Object get(ISessionContext ctx, Object selection) {
+
+ final Resource input = AdaptionUtils.adaptToSingle(selection, Resource.class);
+ if(input == null) {
+ return GraphExplorer.EMPTY_INPUT;
+ }
+
+ final VariablePrefix prefix = AdaptionUtils.adaptToSingle(selection, VariablePrefix.class);
+ if(prefix == null) {
+ return new VariablesInput(null, input);
+ } else {
+ return new VariablesInput(prefix.getPrefix(), input);
+ }
+
+ }
+
+ });
+
+ }
+
+
+ /**
+ * @param newContext
+ */
+ protected final void setSessionContext(ISessionContext newContext) {
+ ISessionContext oldContext = this.sessionContext;
+ this.sessionContext = newContext;
+// System.out.println("AbstractPropertyPage.setSessionContext: " + oldContext + " -> " + newContext);
+
+ sessionContextChanged(oldContext, newContext);
+ }
+
+ /**
+ * @param oldContext
+ * @param newContext
+ */
+ protected void sessionContextChanged(ISessionContext oldContext, ISessionContext newContext) {
+ explorer.applySessionContext(newContext);
+// explorer.setSessionContext(newContext);
+ }
+
+ protected ISessionContextChangedListener contextChangeListener = new ISessionContextChangedListener() {
+ @Override
+ public void sessionContextChanged(SessionContextChangedEvent event) {
+ setSessionContext(event.getNewValue());
+ }
+ };
+
+ @Override
+ public Control getControl() {
+ return (explorer != null) ? explorer : null;
+ }
+
+ @Override
+ public ISelection getSelection() {
+// if (!explorer.isDisposed()) {
+// return explorer.getSelection();
+// }
+ return null;
+ }
+
+ /**
+ * Sets focus to a part in the page.
+ * @see org.eclipse.ui.part.Page#setFocus()
+ */
+ @Override
+ public void setFocus() {
+// if (explorer != null && !explorer.isDisposed()) {
+// explorer.requestFocus();
+// }
+ }
+
+ protected void sourcePartClosed(IWorkbenchPart part) {
+// if (!explorer.isDisposed()) {
+// explorer.setInput(StructuredSelection.EMPTY, false);
+// }
+ }
+
+ protected void sourceSelectionChanged(ISelection selection) {
+ if (!explorer.isDisposed()) {
+ explorer.setInput(selection, false);
+ }
+ }
+
+ static class PartNameListener implements Listener<String> {
+ private boolean disposed = false;
+ private final Consumer<String> updateCallback;
+
+ public PartNameListener(Consumer<String> updateCallback) {
+ assert updateCallback != null;
+ this.updateCallback = updateCallback;
+ }
+
+ public void dispose() {
+ disposed = true;
+ }
+
+ @Override
+ public boolean isDisposed() {
+ return disposed;
+ }
+
+ @Override
+ public void execute(String result) {
+ //System.out.println("part name changed: " + result);
+ updateCallback.accept(result);
+ }
+
+ @Override
+ public void exception(Throwable t) {
+ ErrorLogger.defaultLogError(t);
+ }
+ }
+
+ PartNameListener currentPartNameListener = null;
+
+ @Override
+ public void updatePartName(final ISelection forSelection, Consumer<String> updateCallback) {
+ PartNameListener oldListener = currentPartNameListener;
+ PartNameListener newListener = new PartNameListener(updateCallback);
+ if (oldListener != null)
+ oldListener.dispose();
+
+ if (sessionContext != null) {
+ sessionContext.getSession().asyncRequest(new Read<String>() {
+ @Override
+ public String perform(ReadGraph graph) throws DatabaseException {
+ return computeTitle(graph, forSelection);
+ }
+ }, newListener);
+ }
+ }
+
+ protected static String safeGetName(ReadGraph g, Resource r) throws DatabaseException {
+ try {
+ return g.adapt(r, String.class);
+ } catch (AdaptionException e) {
+ return NameUtils.getSafeName(g, r);
+ }
+ }
+
+ protected String computeTitle(ReadGraph graph, ISelection selection) throws DatabaseException {
+ boolean sameTypes = true;
+
+ try {
+
+ final ResourceArray[] ras = ResourceAdaptionUtils.toResourceArrays(selection);
+ if (ras.length == 0)
+ return null;
+
+ // Check if all the input resource are of the same type.
+ Collection<Resource> types = null;
+ for (ResourceArray ra : ras) {
+ if (ra.isEmpty()) {
+ return null;
+ }
+ if (types == null) {
+ types = graph.getPrincipalTypes(ra.resources[0]);
+ } else {
+ Collection<Resource> ts = graph.getPrincipalTypes(ra.resources[0]);
+ ts.removeAll(types);
+ if (!ts.isEmpty()) {
+ sameTypes = false;
+ break;
+ }
+ }
+ }
+ if (sameTypes) {
+ // If the resource no longer exists, provide default name only.
+ if (!graph.hasStatement(ras[0].resources[0])) {
+ return null;
+ }
+
+ String name = safeGetName(graph, ras[0].resources[0]);
+ if (ras.length > 1)
+ name += " [" + ras.length +"]";
+ return name;
+ } else {
+ Collection<String> names = new ArrayList<String>(ras.length);
+ boolean truncate = ras.length > MAX_SELECTION_LENGTH_TO_SHOW;
+ int end = Math.min(ras.length, MAX_SELECTION_LENGTH_TO_SHOW);
+ int missing = ras.length - end;
+ for (int i = 0; i < end; ++i) {
+ // If the resource no longer exists, provide default name only.
+ if (!graph.hasStatement(ras[i].resources[0]))
+ continue;
+
+ names.add(safeGetName(graph, ras[i].resources[0]));
+ }
+ if (names.isEmpty()) {
+ return null;
+ }
+
+ if (truncate)
+ names.add("+ " + missing + " more...");
+
+ String name = names.toString();
+ return name;
+ }
+
+ } catch (Throwable t) {
+ t.printStackTrace();
+ return null;
+ }
+
+ }
+
+ /**
+ * Part listener which cleans up this page when the source part is closed.
+ * This is hooked only when there is a source part.
+ */
+ private class PartListener implements IPartListener {
+ public void partActivated(IWorkbenchPart part) {
+ }
+
+ public void partBroughtToTop(IWorkbenchPart part) {
+ }
+
+ public void partClosed(IWorkbenchPart part) {
+ if (sourcePart == part) {
+ sourcePart = null;
+ sourcePartClosed(part);
+ }
+ }
+
+ public void partDeactivated(IWorkbenchPart part) {
+ }
+
+ public void partOpened(IWorkbenchPart part) {
+ }
+ }
+
+ private PartListener partListener = new PartListener();
+
+ protected IWorkbenchPartSite site;
+
+ private IWorkbenchPart sourcePart;
+
+ protected IAdaptable adapter;
+
+ @Override
+ public void setAdapter(IAdaptable adapter) {
+ assert adapter != null;
+ this.adapter = adapter;
+ }
+
+ public IAdaptable getAdapter() {
+ assert adapter != null;
+ return adapter;
+ }
+
+ @Override
+ public void selectionChanged(IWorkbenchPart part, ISelection selection) {
+ if (getControl() == null) {
+ return;
+ }
+
+ if (sourcePart != null) {
+ sourcePart.getSite().getPage().removePartListener(partListener);
+ sourcePart = null;
+ }
+
+ // change the viewer input since the workbench selection has changed.
+ sourceSelectionChanged(selection);
+ sourcePart = part;
+
+ if (sourcePart != null) {
+ sourcePart.getSite().getPage().addPartListener(partListener);
+ }
+ }
+
+}
Code Review / simantics / platform.git / blobdiff