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@@ -16,33 +16,47 @@ import org.eclipse.emf.transaction.ResourceSetListenerImpl;
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import org.eclipse.gmf.runtime.common.ui.services.marker.MarkerNavigationService;
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import org.eclipse.gmf.runtime.diagram.core.preferences.PreferencesHint;
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import org.eclipse.gmf.runtime.diagram.ui.resources.editor.parts.DiagramDocumentEditor;
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+import org.eclipse.swt.widgets.Composite;
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import org.eclipse.swt.widgets.Display;
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import org.eclipse.ui.IEditorInput;
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import org.eclipse.ui.IEditorSite;
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+import org.eclipse.ui.IPartListener2;
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+import org.eclipse.ui.IViewPart;
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+import org.eclipse.ui.IWorkbenchPage;
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+import org.eclipse.ui.IWorkbenchPartReference;
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+import org.eclipse.ui.IWorkbenchWindow;
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import org.eclipse.ui.PartInitException;
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+import org.eclipse.ui.PlatformUI;
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import org.eclipse.ui.ide.IGotoMarker;
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import org.yakindu.sct.ui.editor.DiagramActivator;
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+import org.yakindu.sct.ui.editor.utils.IYakinduSctHelpContextIds;
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import org.yakindu.sct.ui.editor.validation.ValidationAction;
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/**
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*
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* @author andreas muelder
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- *
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+ * @author martin esser
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*/
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public class StatechartDiagramEditor extends DiagramDocumentEditor implements
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IGotoMarker {
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public static final String ID = "org.yakindu.sct.ui.editor.editor.StatechartDiagramEditor";
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+ // Duplicate of the internal constant used to register the help view as a UI
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+ // extension.
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+ // @see org.eclipse.help.ui.internalDefaulHelptUI#HELP_VIEW_ID
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+ private final static String HELP_VIEW_ID = "org.eclipse.help.ui.HelpView";
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+
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+ // Declared static to prevent problems in case of an access attempt on
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+ // startup
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+ private static boolean dynamicHelpViewShowing = false;
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+
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+ private IPartListener2 dynamicHelpViewListener;
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+
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public StatechartDiagramEditor() {
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super(true);
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}
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- @Override
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- public String getContributorId() {
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- return ID;
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- }
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-
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@Override
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public void init(IEditorSite site, IEditorInput input)
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throws PartInitException {
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@@ -63,6 +77,19 @@ public class StatechartDiagramEditor extends DiagramDocumentEditor implements
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}
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});
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+
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+ // Create the help view listener and register it with the workbench
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+ Display.getCurrent().asyncExec(new Runnable() {
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+ public void run() {
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+ createDynamicHelpViewListener();
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+ PlatformUI.getWorkbench().getActiveWorkbenchWindow()
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+ .getPartService()
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+ .addPartListener(dynamicHelpViewListener);
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+ // Listener may have missed view opening
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+ dynamicHelpViewShowing = askWorkbenchIfDynamicHelpViewShowing();
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+ }
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+ });
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+
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}
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public void gotoMarker(IMarker marker) {
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@@ -73,4 +100,106 @@ public class StatechartDiagramEditor extends DiagramDocumentEditor implements
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protected PreferencesHint getPreferencesHint() {
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return DiagramActivator.DIAGRAM_PREFERENCES_HINT;
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}
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+
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+ @Override
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+ protected void createGraphicalViewer(Composite parent) {
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+ super.createGraphicalViewer(parent);
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+ // Tag the viewer with the desired help context id
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+ PlatformUI
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+ .getWorkbench()
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+ .getHelpSystem()
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+ .setHelp(getGraphicalViewer().getControl(),
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+ IYakinduSctHelpContextIds.SC_EDITOR_GRAPHICAL_VIEWER); // /CHANGE
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+ // ID!!!
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+ }
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+
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+ @Override
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+ public void dispose() {
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+ PlatformUI.getWorkbench().getActiveWorkbenchWindow().getPartService()
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+ .removePartListener(dynamicHelpViewListener);
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+ super.dispose();
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+ }
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+
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+ private void createDynamicHelpViewListener() {
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+ dynamicHelpViewListener = new IPartListener2() {
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+
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+ public void partOpened(IWorkbenchPartReference partRef) {
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+ partVisible(partRef);
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+ }
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+
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+ // Will be notified reliably when Dynamic Help View is opened in ANY
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+ // perspective
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+ public void partVisible(IWorkbenchPartReference partRef) {
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+ if (HELP_VIEW_ID.equals(partRef.getId())) {
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+ dynamicHelpViewShowing = true;
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+ }
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+
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+ }
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+
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+ public void partClosed(IWorkbenchPartReference partRef) {
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+ partHidden(partRef);
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+ }
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+
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+ // Will be notified reliably when Dynamic Help View is closed in ANY
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+ // perspective
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+ public void partHidden(IWorkbenchPartReference partRef) {
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+ if (HELP_VIEW_ID.equals(partRef.getId())) {
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+ dynamicHelpViewShowing = false;
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+ PlatformUI
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+ .getWorkbench()
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+ .getHelpSystem()
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+ .setHelp(
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+ getGraphicalViewer().getControl(),
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+ IYakinduSctHelpContextIds.SC_EDITOR_GRAPHICAL_VIEWER);
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+ }
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+ }
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+
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+ public void partActivated(IWorkbenchPartReference partRef) {
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+ // do nothing
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+ }
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+
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+ public void partBroughtToTop(IWorkbenchPartReference partRef) {
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+ // do nothing
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+ }
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+
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+ public void partDeactivated(IWorkbenchPartReference partRef) {
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+ // do nothing
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+ }
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+
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+ public void partInputChanged(IWorkbenchPartReference partRef) {
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+ // do nothing
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+ }
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+
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+ };
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+ }
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+
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+ public static boolean askWorkbenchIfDynamicHelpViewShowing() {
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+ boolean open = false;
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+ IWorkbenchWindow activeWindow = PlatformUI.getWorkbench()
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+ .getActiveWorkbenchWindow();
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+ if (activeWindow != null) {
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+ IWorkbenchPage activePage = activeWindow.getActivePage();
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+ if (activePage != null) {
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+ IViewPart view = activePage.findView(HELP_VIEW_ID);
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+ if (view != null) {
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+ open = true;
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+ }
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+ }
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+ }
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+ return open;
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+ }
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+
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+ @Override
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+ public String getContributorId() {
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+ return ID;
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+ }
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+
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+ public static void setDynamicHelpViewShowing(boolean dynamicHelpViewShowing) {
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+ StatechartDiagramEditor.dynamicHelpViewShowing = dynamicHelpViewShowing;
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+ }
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+
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+ public static boolean isDynamicHelpViewShowing() {
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+ return StatechartDiagramEditor.dynamicHelpViewShowing;
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+ }
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+
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}
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essermar@googlemail.com