-/*******************************************************************************\r
- * Copyright (c) 2007, 2013 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
- * Semantum Oy - issue #4384\r
- *******************************************************************************/\r
-package org.simantics.ui.workbench.e4;\r
-\r
-import org.eclipse.ui.PlatformUI;\r
-import org.simantics.Simantics;\r
-import org.simantics.db.ReadGraph;\r
-import org.simantics.db.Resource;\r
-import org.simantics.db.common.procedure.adapter.ListenerAdapter;\r
-import org.simantics.db.common.request.ParametrizedRead;\r
-import org.simantics.db.common.request.TernaryRead;\r
-import org.simantics.db.exception.DatabaseException;\r
-import org.simantics.ui.workbench.IResourceEditorInput;\r
-import org.simantics.utils.datastructures.map.Tuple;\r
-import org.simantics.utils.ui.ExceptionUtils;\r
-import org.simantics.utils.ui.SWTUtils;\r
-\r
-/**\r
- * A helper class for adding input validation and reaction to input invalidation\r
- * to an E4 (editor) part that uses Simantics database {@link Resource}s as its\r
- * input.\r
- * \r
- * <p>\r
- * Only useful with E4ResourceEditorBase extending part implementations.\r
- * \r
- * @author Tuukka Lehtonen\r
- */\r
-public class E4ResourceEditorSupport {\r
-\r
- private E4ResourceEditorBase editor;\r
-\r
- private ParametrizedRead<IResourceEditorInput, Boolean> inputValidator;\r
-\r
- private InputListener inputListener;\r
-\r
- public E4ResourceEditorSupport(E4ResourceEditorBase editor) {\r
- this(editor, null);\r
- }\r
-\r
- public E4ResourceEditorSupport(E4ResourceEditorBase editor, ParametrizedRead<IResourceEditorInput, Boolean> inputValidator) {\r
- this.editor = editor;\r
- this.inputValidator = inputValidator;\r
- }\r
-\r
- public void dispose() {\r
- deactivateValidation();\r
- inputValidator = null;\r
- editor = null;\r
- }\r
-\r
- protected boolean isDisposed() {\r
- return editor == null;\r
- }\r
-\r
- public synchronized void activateValidation() {\r
- if (isDisposed())\r
- throw new IllegalStateException(this + " is disposed");\r
- if (inputListener != null)\r
- return;\r
-\r
- E4ResourceEditorBase e = editor;\r
- inputListener = new InputListener();\r
- Simantics.getSession().asyncRequest(new InputEvaluator(e.getPart().getElementId(), e.getResourceInput(), inputValidator), inputListener);\r
- }\r
-\r
- public synchronized void deactivateValidation() {\r
- if (isDisposed())\r
- throw new IllegalStateException(this + " is disposed");\r
- if (inputListener == null)\r
- return;\r
- inputListener.dispose();\r
- }\r
-\r
- static enum InputState {\r
- VALID,\r
- INVALID,\r
- NON_EXISTENT;\r
-\r
- public static InputState parse(boolean exists, boolean valid) {\r
- if (!exists)\r
- return NON_EXISTENT;\r
- return valid ? VALID : INVALID;\r
- }\r
- }\r
-\r
- static class Evaluation extends Tuple {\r
- public Evaluation(String editorElementId, InputState state) {\r
- super(editorElementId, state);\r
- }\r
-\r
- public String getEditorElementId() {\r
- return (String) getField(0);\r
- }\r
-\r
- public InputState getInputState() {\r
- return (InputState) getField(1);\r
- }\r
- }\r
-\r
- public static class InputEvaluator extends TernaryRead<String, IResourceEditorInput, ParametrizedRead<IResourceEditorInput, Boolean>, Evaluation> {\r
-\r
- public InputEvaluator(String editorElementId, IResourceEditorInput input, ParametrizedRead<IResourceEditorInput, Boolean> inputValidator) {\r
- super(editorElementId, input, inputValidator);\r
- }\r
-\r
- @Override\r
- public Evaluation perform(ReadGraph graph) throws DatabaseException {\r
- //System.out.println(this + ": checking input " + parameter + ", " + parameter2);\r
- IResourceEditorInput i = parameter2;\r
- boolean exists = i.exists(graph);\r
- boolean valid = exists && parameter3 != null\r
- ? graph.syncRequest(parameter3.get(i))\r
- : exists;\r
- InputState state = InputState.parse(exists, valid);\r
- Evaluation eval = new Evaluation(parameter, state);\r
- //System.out.println(this + ": validation evaluation: " + eval);\r
- return eval;\r
- }\r
- }\r
-\r
- private static class InputListener extends ListenerAdapter<Evaluation> {\r
-\r
- private boolean disposed = false;\r
-\r
- public void dispose() {\r
- disposed = true;\r
- }\r
-\r
- @Override\r
- public void execute(Evaluation evaluation) {\r
- //System.out.println("InputListener: " + evaluation);\r
- switch (evaluation.getInputState()) {\r
- case VALID:\r
- break;\r
-\r
- case INVALID:\r
- case NON_EXISTENT:\r
- scheduleEditorClose(evaluation.getEditorElementId());\r
- break;\r
- }\r
- }\r
-\r
- @Override\r
- public void exception(Throwable t) {\r
- ExceptionUtils.logError("E4ResourceEditorSupport.InputListener received an unexpected exception.", t);\r
- }\r
-\r
- @Override\r
- public boolean isDisposed() {\r
- return disposed;\r
- }\r
- }\r
-\r
- private static void scheduleEditorClose(String editorElementId) {\r
- SWTUtils.asyncExec(PlatformUI.getWorkbench().getDisplay(), () -> {\r
- E4WorkbenchUtils.closeEditor(editorElementId);\r
- });\r
- }\r
-\r
-}\r
+/*******************************************************************************
+ * Copyright (c) 2007, 2013 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
+ * Semantum Oy - issue #4384
+ *******************************************************************************/
+package org.simantics.ui.workbench.e4;
+
+import org.eclipse.ui.PlatformUI;
+import org.simantics.Simantics;
+import org.simantics.db.ReadGraph;
+import org.simantics.db.Resource;
+import org.simantics.db.common.procedure.adapter.ListenerAdapter;
+import org.simantics.db.common.request.ParametrizedRead;
+import org.simantics.db.common.request.TernaryRead;
+import org.simantics.db.exception.DatabaseException;
+import org.simantics.ui.workbench.IResourceEditorInput;
+import org.simantics.utils.datastructures.map.Tuple;
+import org.simantics.utils.ui.ExceptionUtils;
+import org.simantics.utils.ui.SWTUtils;
+
+/**
+ * A helper class for adding input validation and reaction to input invalidation
+ * to an E4 (editor) part that uses Simantics database {@link Resource}s as its
+ * input.
+ *
+ * <p>
+ * Only useful with E4ResourceEditorBase extending part implementations.
+ *
+ * @author Tuukka Lehtonen
+ */
+public class E4ResourceEditorSupport {
+
+ private E4ResourceEditorBase editor;
+
+ private ParametrizedRead<IResourceEditorInput, Boolean> inputValidator;
+
+ private InputListener inputListener;
+
+ public E4ResourceEditorSupport(E4ResourceEditorBase editor) {
+ this(editor, null);
+ }
+
+ public E4ResourceEditorSupport(E4ResourceEditorBase editor, ParametrizedRead<IResourceEditorInput, Boolean> inputValidator) {
+ this.editor = editor;
+ this.inputValidator = inputValidator;
+ }
+
+ public void dispose() {
+ deactivateValidation();
+ inputValidator = null;
+ editor = null;
+ }
+
+ protected boolean isDisposed() {
+ return editor == null;
+ }
+
+ public synchronized void activateValidation() {
+ if (isDisposed())
+ throw new IllegalStateException(this + " is disposed");
+ if (inputListener != null)
+ return;
+
+ E4ResourceEditorBase e = editor;
+ inputListener = new InputListener();
+ Simantics.getSession().asyncRequest(new InputEvaluator(e.getPart().getElementId(), e.getResourceInput(), inputValidator), inputListener);
+ }
+
+ public synchronized void deactivateValidation() {
+ if (isDisposed())
+ throw new IllegalStateException(this + " is disposed");
+ if (inputListener == null)
+ return;
+ inputListener.dispose();
+ }
+
+ static enum InputState {
+ VALID,
+ INVALID,
+ NON_EXISTENT;
+
+ public static InputState parse(boolean exists, boolean valid) {
+ if (!exists)
+ return NON_EXISTENT;
+ return valid ? VALID : INVALID;
+ }
+ }
+
+ static class Evaluation extends Tuple {
+ public Evaluation(String editorElementId, InputState state) {
+ super(editorElementId, state);
+ }
+
+ public String getEditorElementId() {
+ return (String) getField(0);
+ }
+
+ public InputState getInputState() {
+ return (InputState) getField(1);
+ }
+ }
+
+ public static class InputEvaluator extends TernaryRead<String, IResourceEditorInput, ParametrizedRead<IResourceEditorInput, Boolean>, Evaluation> {
+
+ public InputEvaluator(String editorElementId, IResourceEditorInput input, ParametrizedRead<IResourceEditorInput, Boolean> inputValidator) {
+ super(editorElementId, input, inputValidator);
+ }
+
+ @Override
+ public Evaluation perform(ReadGraph graph) throws DatabaseException {
+ //System.out.println(this + ": checking input " + parameter + ", " + parameter2);
+ IResourceEditorInput i = parameter2;
+ boolean exists = i.exists(graph);
+ boolean valid = exists && parameter3 != null
+ ? graph.syncRequest(parameter3.get(i))
+ : exists;
+ InputState state = InputState.parse(exists, valid);
+ Evaluation eval = new Evaluation(parameter, state);
+ //System.out.println(this + ": validation evaluation: " + eval);
+ return eval;
+ }
+ }
+
+ private static class InputListener extends ListenerAdapter<Evaluation> {
+
+ private boolean disposed = false;
+
+ public void dispose() {
+ disposed = true;
+ }
+
+ @Override
+ public void execute(Evaluation evaluation) {
+ //System.out.println("InputListener: " + evaluation);
+ switch (evaluation.getInputState()) {
+ case VALID:
+ break;
+
+ case INVALID:
+ case NON_EXISTENT:
+ scheduleEditorClose(evaluation.getEditorElementId());
+ break;
+ }
+ }
+
+ @Override
+ public void exception(Throwable t) {
+ ExceptionUtils.logError("E4ResourceEditorSupport.InputListener received an unexpected exception.", t);
+ }
+
+ @Override
+ public boolean isDisposed() {
+ return disposed;
+ }
+ }
+
+ private static void scheduleEditorClose(String editorElementId) {
+ SWTUtils.asyncExec(PlatformUI.getWorkbench().getDisplay(), () -> {
+ E4WorkbenchUtils.closeEditor(editorElementId);
+ });
+ }
+
+}
Code Review / simantics / platform.git / blobdiff