public code v1

plugins/afryca.rcp/src/afryca/rcp/addon/MinSizeAddon.java

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+package afryca.rcp.addon;
+
+import javax.annotation.PostConstruct;
+
+import org.eclipse.e4.core.services.events.IEventBroker;
+import org.eclipse.e4.ui.model.application.ui.basic.MWindow;
+import org.eclipse.e4.ui.workbench.UIEvents;
+import org.eclipse.swt.widgets.Shell;
+import org.osgi.service.event.Event;
+import org.osgi.service.event.EventHandler;
+
+/**
+ * {@lin khttp://stackoverflow.com/questions/15894393}
+ */
+public class MinSizeAddon {
+	
+	private static final int WIDTH = 900;
+	private static final int HEIGHT = 600;
+	
+	@PostConstruct
+	public void init(final IEventBroker eventBroker) {
+		EventHandler handler = new EventHandler() {
+			@Override
+			public void handleEvent(Event event) {
+				if (!UIEvents.isSET(event))
+					return;
+
+				Object objElement = event.getProperty(UIEvents.EventTags.ELEMENT);
+				if (!(objElement instanceof MWindow))
+					return;
+
+				MWindow windowModel = (MWindow) objElement;
+				Shell theShell = (Shell) windowModel.getWidget();
+				if (theShell == null)
+					return;
+
+				theShell.setMinimumSize(WIDTH, HEIGHT);
+			}
+		};
+		eventBroker.subscribe(UIEvents.UIElement.TOPIC_WIDGET, handler);
+	}
+}

plugins/afryca.rcp/src/afryca/rcp/addon/PerspectiveSwitchAddon.java

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+package afryca.rcp.addon;
+
+import javax.annotation.PostConstruct;
+import javax.inject.Inject;
+
+import org.eclipse.e4.core.contexts.IEclipseContext;
+import org.eclipse.e4.core.di.annotations.Optional;
+import org.eclipse.e4.core.di.extensions.EventTopic;
+import org.eclipse.e4.core.services.events.IEventBroker;
+import org.eclipse.e4.ui.model.application.MApplication;
+import org.eclipse.e4.ui.model.application.ui.advanced.MPerspective;
+import org.eclipse.e4.ui.model.application.ui.advanced.MPerspectiveStack;
+import org.eclipse.e4.ui.workbench.UIEvents;
+import org.eclipse.e4.ui.workbench.UIEvents.EventTags;
+import org.eclipse.e4.ui.workbench.modeling.EModelService;
+import org.osgi.service.event.Event;
+
+/**
+ * Set active perspective in <code>active.perspective</code> property.
+ */
+public class PerspectiveSwitchAddon {
+
+	private static final String PERSPECTIVE_STACK_ID = "afryca.rcp.main.perspectivestack"; //$NON-NLS-1$
+	private static final String ACTIVE_PERSPECTIVE_PROPERTY = "active.perspective"; //$NON-NLS-1$
+
+	@Inject
+	private IEclipseContext context;
+
+	@Inject
+	private EModelService modelService;
+
+	@Inject
+	private MApplication application;
+
+	@Inject
+	private IEventBroker eventBroker;
+
+	@PostConstruct
+	public void setActivePerspectiveProperty() {
+		MPerspectiveStack stack = (MPerspectiveStack) modelService.find(PERSPECTIVE_STACK_ID, application);
+		MPerspective active = stack.getSelectedElement();
+		context.set(ACTIVE_PERSPECTIVE_PROPERTY, (active != null) ? active.getElementId() : null);
+		context.declareModifiable(ACTIVE_PERSPECTIVE_PROPERTY);
+		eventBroker.post(UIEvents.REQUEST_ENABLEMENT_UPDATE_TOPIC, UIEvents.ALL_ELEMENT_ID);
+	}
+
+	@Inject
+	@Optional
+	public void subscribeTopicSelectedElement(
+			@EventTopic(UIEvents.ElementContainer.TOPIC_SELECTEDELEMENT) Event event) {
+		Object value = event.getProperty(EventTags.NEW_VALUE);
+		if (value instanceof MPerspective) {
+			context.modify(ACTIVE_PERSPECTIVE_PROPERTY, ((MPerspective) value).getElementId());
+			eventBroker.post(UIEvents.REQUEST_ENABLEMENT_UPDATE_TOPIC, UIEvents.ALL_ELEMENT_ID);
+		}
+	}
+	
+}