-/*******************************************************************************\r
- * Copyright (c) 2007- VTT Technical Research Centre of Finland.\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.ui.workbench.handler.e4;\r
-\r
-import java.lang.reflect.InvocationTargetException;\r
-import java.util.List;\r
-import java.util.concurrent.atomic.AtomicReference;\r
-\r
-import org.eclipse.core.commands.Command;\r
-import org.eclipse.core.commands.ExecutionException;\r
-import org.eclipse.core.commands.State;\r
-import org.eclipse.core.runtime.IProgressMonitor;\r
-import org.eclipse.core.runtime.IStatus;\r
-import org.eclipse.e4.core.contexts.Active;\r
-import org.eclipse.e4.core.di.annotations.CanExecute;\r
-import org.eclipse.e4.core.di.annotations.Execute;\r
-import org.eclipse.e4.ui.model.application.MApplication;\r
-import org.eclipse.e4.ui.model.application.ui.basic.MPart;\r
-import org.eclipse.e4.ui.workbench.modeling.EModelService;\r
-import org.eclipse.jface.action.IStatusLineManager;\r
-import org.eclipse.jface.dialogs.ProgressMonitorDialog;\r
-import org.eclipse.jface.operation.IRunnableWithProgress;\r
-import org.eclipse.swt.widgets.Shell;\r
-import org.eclipse.ui.IWorkbenchPart;\r
-import org.eclipse.ui.PlatformUI;\r
-import org.eclipse.ui.commands.ICommandService;\r
-import org.simantics.Simantics;\r
-import org.simantics.db.ChangeSetIdentifier;\r
-import org.simantics.db.Operation;\r
-import org.simantics.db.Session;\r
-import org.simantics.db.common.CommentMetadata;\r
-import org.simantics.db.exception.DatabaseException;\r
-import org.simantics.db.exception.NoHistoryException;\r
-import org.simantics.db.service.ManagementSupport;\r
-import org.simantics.db.service.UndoRedoSupport;\r
-import org.simantics.ui.states.TrackedTextState;\r
-import org.simantics.utils.ui.ErrorLogger;\r
-import org.simantics.utils.ui.workbench.WorkbenchUtils;\r
-\r
-/**\r
- * @author Kalle Kondelin\r
- * @author Jani Simomaa\r
- */\r
-public class SessionUndoHandler {\r
- \r
- private final static boolean DEBUG = false;\r
- private final static boolean ENABLED = true;\r
- \r
- @CanExecute\r
- public boolean canExecute() {\r
- return UndoRedoTester.canUndo();\r
- }\r
- \r
- @Execute\r
- public void execute(@Active MPart activePart, MApplication mApplication, EModelService modelService) throws ExecutionException {\r
- if (DEBUG)\r
- System.out.println("--\nUndo handler called.");\r
-\r
- if (activePart == null)\r
- return;\r
- final Session session = Simantics.peekSession();\r
- if (session == null)\r
- return;\r
- \r
- ICommandService service = (ICommandService) PlatformUI.getWorkbench().getService(ICommandService.class);\r
- Command command = service.getCommand( TrackedTextState.COMMAND_ID );\r
- State state = command.getState( TrackedTextState.STATE_ID );\r
- \r
- boolean sessionUndoEnabled = true;\r
- Object value = state.getValue();\r
- if (value != null && value instanceof Boolean)\r
- sessionUndoEnabled = (Boolean) value;\r
- \r
- if (ENABLED) {\r
- if (sessionUndoEnabled) {\r
- try {\r
- final AtomicReference<String> msg = new AtomicReference<String>();\r
- IRunnableWithProgress undo = new IRunnableWithProgress() {\r
- @Override\r
- public void run(IProgressMonitor monitor) throws InvocationTargetException, InterruptedException {\r
- try {\r
- monitor.beginTask("Undo", IProgressMonitor.UNKNOWN);\r
- msg.set( undo( session ) );\r
- } catch (NoHistoryException e) {\r
- msg.set("Nothing to undo.");\r
- } catch (DatabaseException e) {\r
- throw new InvocationTargetException(e);\r
- } finally {\r
- monitor.done();\r
- }\r
- }\r
- };\r
- \r
- // busyCursorWhile does not work because locking the session for undo\r
- // will also lock the UI completely.\r
- //PlatformUI.getWorkbench().getProgressService().busyCursorWhile(undo);\r
- Shell shell = PlatformUI.getWorkbench().getActiveWorkbenchWindow().getShell();\r
- new ProgressMonitorDialog(shell).run(true, false, undo);\r
- \r
- //\r
- // TODO Not the Eclipse 4 way of using IStatusLineManager!\r
- // See:\r
- // https://bugs.eclipse.org/bugs/show_bug.cgi?id=332499\r
- // https://www.eclipse.org/forums/index.php?t=msg&th=367379&goto=941232&#msg_941232\r
- //\r
- IWorkbenchPart part = WorkbenchUtils.getActiveWorkbenchPart();\r
- IStatusLineManager manager = WorkbenchUtils.getStatusLine(part);\r
- manager.setMessage(msg.get());\r
-// statusManager.setMessage( msg.get() );\r
- } catch (InvocationTargetException e1) {\r
- throw new ExecutionException("Undo failed, database failure.", e1.getCause());\r
- } catch (InterruptedException e1) {\r
- throw new ExecutionException("Undo failed, interrupted.", e1);\r
- }\r
- }\r
- } else {\r
- ErrorLogger.getDefault().log(IStatus.INFO, 0, "The undo command is disabled", null);\r
- }\r
- return;\r
- }\r
-\r
- public static String getComment(Session session, ChangeSetIdentifier id) {\r
- byte[] data = id.getMetadata().get(CommentMetadata.class.getName());\r
- if(data == null)\r
- return "Undescribed operation.";\r
- String comment = CommentMetadata.deserialise(session, data).toString().trim();\r
- if(comment.isEmpty())\r
- return "Undescribed operation.";\r
- return comment;\r
- }\r
- \r
- private String undo(Session session) throws DatabaseException {\r
- UndoRedoSupport support = session.getService(UndoRedoSupport.class);\r
- \r
- List<Operation> ops = support.undoAndReturnOperations(session, 1);\r
- if(ops.isEmpty())\r
- return "Undo history is empty."; \r
- \r
- Operation mainOperation = ops.get(0);\r
- \r
- String msg = null;\r
- long csId = mainOperation.getCSId();\r
-\r
- ManagementSupport management = session.getService(ManagementSupport.class);\r
- for(ChangeSetIdentifier id : management.getChangeSetIdentifiers(csId, csId))\r
- if(msg == null)\r
- msg = "Undo reverted: " + getComment(session, id);\r
-\r
- if (DEBUG)\r
- System.out.println(msg);\r
- return msg;\r
- }\r
-\r
-}\r
+/*******************************************************************************
+ * Copyright (c) 2007- VTT Technical Research Centre of Finland.
+ * 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.ui.workbench.handler.e4;
+
+import java.lang.reflect.InvocationTargetException;
+import java.util.List;
+import java.util.concurrent.atomic.AtomicReference;
+
+import org.eclipse.core.commands.Command;
+import org.eclipse.core.commands.ExecutionException;
+import org.eclipse.core.commands.State;
+import org.eclipse.core.runtime.IProgressMonitor;
+import org.eclipse.core.runtime.IStatus;
+import org.eclipse.e4.core.contexts.Active;
+import org.eclipse.e4.core.di.annotations.CanExecute;
+import org.eclipse.e4.core.di.annotations.Execute;
+import org.eclipse.e4.ui.model.application.MApplication;
+import org.eclipse.e4.ui.model.application.ui.basic.MPart;
+import org.eclipse.e4.ui.workbench.modeling.EModelService;
+import org.eclipse.jface.action.IStatusLineManager;
+import org.eclipse.jface.dialogs.ProgressMonitorDialog;
+import org.eclipse.jface.operation.IRunnableWithProgress;
+import org.eclipse.swt.widgets.Shell;
+import org.eclipse.ui.IWorkbenchPart;
+import org.eclipse.ui.PlatformUI;
+import org.eclipse.ui.commands.ICommandService;
+import org.simantics.Simantics;
+import org.simantics.db.ChangeSetIdentifier;
+import org.simantics.db.Operation;
+import org.simantics.db.Session;
+import org.simantics.db.common.CommentMetadata;
+import org.simantics.db.exception.DatabaseException;
+import org.simantics.db.exception.NoHistoryException;
+import org.simantics.db.service.ManagementSupport;
+import org.simantics.db.service.UndoRedoSupport;
+import org.simantics.ui.states.TrackedTextState;
+import org.simantics.utils.ui.ErrorLogger;
+import org.simantics.utils.ui.workbench.WorkbenchUtils;
+
+/**
+ * @author Kalle Kondelin
+ * @author Jani Simomaa
+ */
+public class SessionUndoHandler {
+
+ private final static boolean DEBUG = false;
+ private final static boolean ENABLED = true;
+
+ @CanExecute
+ public boolean canExecute() {
+ return UndoRedoTester.canUndo();
+ }
+
+ @Execute
+ public void execute(@Active MPart activePart, MApplication mApplication, EModelService modelService) throws ExecutionException {
+ if (DEBUG)
+ System.out.println("--\nUndo handler called.");
+
+ if (activePart == null)
+ return;
+ final Session session = Simantics.peekSession();
+ if (session == null)
+ return;
+
+ ICommandService service = (ICommandService) PlatformUI.getWorkbench().getService(ICommandService.class);
+ Command command = service.getCommand( TrackedTextState.COMMAND_ID );
+ State state = command.getState( TrackedTextState.STATE_ID );
+
+ boolean sessionUndoEnabled = true;
+ Object value = state.getValue();
+ if (value != null && value instanceof Boolean)
+ sessionUndoEnabled = (Boolean) value;
+
+ if (ENABLED) {
+ if (sessionUndoEnabled) {
+ try {
+ final AtomicReference<String> msg = new AtomicReference<String>();
+ IRunnableWithProgress undo = new IRunnableWithProgress() {
+ @Override
+ public void run(IProgressMonitor monitor) throws InvocationTargetException, InterruptedException {
+ try {
+ monitor.beginTask("Undo", IProgressMonitor.UNKNOWN);
+ msg.set( undo( session ) );
+ } catch (NoHistoryException e) {
+ msg.set("Nothing to undo.");
+ } catch (DatabaseException e) {
+ throw new InvocationTargetException(e);
+ } finally {
+ monitor.done();
+ }
+ }
+ };
+
+ // busyCursorWhile does not work because locking the session for undo
+ // will also lock the UI completely.
+ //PlatformUI.getWorkbench().getProgressService().busyCursorWhile(undo);
+ Shell shell = PlatformUI.getWorkbench().getActiveWorkbenchWindow().getShell();
+ new ProgressMonitorDialog(shell).run(true, false, undo);
+
+ //
+ // TODO Not the Eclipse 4 way of using IStatusLineManager!
+ // See:
+ // https://bugs.eclipse.org/bugs/show_bug.cgi?id=332499
+ // https://www.eclipse.org/forums/index.php?t=msg&th=367379&goto=941232&#msg_941232
+ //
+ IWorkbenchPart part = WorkbenchUtils.getActiveWorkbenchPart();
+ IStatusLineManager manager = WorkbenchUtils.getStatusLine(part);
+ manager.setMessage(msg.get());
+// statusManager.setMessage( msg.get() );
+ } catch (InvocationTargetException e1) {
+ throw new ExecutionException("Undo failed, database failure.", e1.getCause());
+ } catch (InterruptedException e1) {
+ throw new ExecutionException("Undo failed, interrupted.", e1);
+ }
+ }
+ } else {
+ ErrorLogger.getDefault().log(IStatus.INFO, 0, "The undo command is disabled", null);
+ }
+ return;
+ }
+
+ public static String getComment(Session session, ChangeSetIdentifier id) {
+ byte[] data = id.getMetadata().get(CommentMetadata.class.getName());
+ if(data == null)
+ return "Undescribed operation.";
+ String comment = CommentMetadata.deserialise(session, data).toString().trim();
+ if(comment.isEmpty())
+ return "Undescribed operation.";
+ return comment;
+ }
+
+ private String undo(Session session) throws DatabaseException {
+ UndoRedoSupport support = session.getService(UndoRedoSupport.class);
+
+ List<Operation> ops = support.undoAndReturnOperations(session, 1);
+ if(ops.isEmpty())
+ return "Undo history is empty.";
+
+ Operation mainOperation = ops.get(0);
+
+ String msg = null;
+ long csId = mainOperation.getCSId();
+
+ ManagementSupport management = session.getService(ManagementSupport.class);
+ for(ChangeSetIdentifier id : management.getChangeSetIdentifiers(csId, csId))
+ if(msg == null)
+ msg = "Undo reverted: " + getComment(session, id);
+
+ if (DEBUG)
+ System.out.println(msg);
+ return msg;
+ }
+
+}
Code Review / simantics / platform.git / blobdiff