X-Git-Url: https://git.argeo.org/?a=blobdiff_plain;f=swt%2Forg.argeo.cms.e4%2Fsrc%2Forg%2Fargeo%2Fcms%2Fe4%2FCmsE4Utils.java;fp=swt%2Forg.argeo.cms.e4%2Fsrc%2Forg%2Fargeo%2Fcms%2Fe4%2FCmsE4Utils.java;h=a997de748875446664865e251abb910811af64f2;hb=7b242851c0094d13cbaca5b68261ad92c873a59f;hp=0000000000000000000000000000000000000000;hpb=dbb84b4ec2d313ec0724d035c32f482ac57974c5;p=lgpl%2Fargeo-commons.git

diff --git a/swt/org.argeo.cms.e4/src/org/argeo/cms/e4/CmsE4Utils.java b/swt/org.argeo.cms.e4/src/org/argeo/cms/e4/CmsE4Utils.java
new file mode 100644
index 000000000..a997de748
--- /dev/null
+++ b/swt/org.argeo.cms.e4/src/org/argeo/cms/e4/CmsE4Utils.java
@@ -0,0 +1,77 @@
+package org.argeo.cms.e4;
+
+import java.util.List;
+
+import org.argeo.cms.swt.CmsException;
+import org.eclipse.e4.ui.model.application.MApplication;
+import org.eclipse.e4.ui.model.application.commands.MCommand;
+import org.eclipse.e4.ui.model.application.ui.basic.MPart;
+import org.eclipse.e4.ui.model.application.ui.menu.MDirectMenuItem;
+import org.eclipse.e4.ui.model.application.ui.menu.MHandledMenuItem;
+import org.eclipse.e4.ui.workbench.modeling.EModelService;
+import org.eclipse.e4.ui.workbench.modeling.EPartService;
+import org.eclipse.e4.ui.workbench.modeling.EPartService.PartState;
+import org.osgi.framework.Bundle;
+import org.osgi.framework.FrameworkUtil;
+
+/** Static utilities simplifying recurring Eclipse 4 patterns. */
+public class CmsE4Utils {
+	/** Open an editor based on its id. */
+	public static void openEditor(EPartService partService, String editorId, String key, String state) {
+		for (MPart part : partService.getParts()) {
+			String id = part.getPersistedState().get(key);
+			if (id != null && state.equals(id)) {
+				partService.showPart(part, PartState.ACTIVATE);
+				return;
+			}
+		}
+
+		// new part
+		MPart part = partService.createPart(editorId);
+		if (part == null)
+			throw new CmsException("No editor found with id " + editorId);
+		part.getPersistedState().put(key, state);
+		partService.showPart(part, PartState.ACTIVATE);
+	}
+
+	/** Dynamically creates an handled menu item from a command ID. */
+	public static MHandledMenuItem createHandledMenuItem(EModelService modelService, MApplication app,
+			String commandId) {
+		MCommand command = findCommand(modelService, app, commandId);
+		if (command == null)
+			return null;
+		MHandledMenuItem handledItem = modelService.createModelElement(MHandledMenuItem.class);
+		handledItem.setCommand(command);
+		return handledItem;
+
+	}
+
+	/**
+	 * Finds a command by ID.
+	 * 
+	 * @return the {@link MCommand} or <code>null</code> if not found.
+	 */
+	public static MCommand findCommand(EModelService modelService, MApplication app, String commandId) {
+		List<MCommand> cmds = modelService.findElements(app, null, MCommand.class, null);
+		for (MCommand cmd : cmds) {
+			if (cmd.getElementId().equals(commandId)) {
+				return cmd;
+			}
+		}
+		return null;
+	}
+
+	/** Dynamically creates a direct menu item from a class. */
+	public static MDirectMenuItem createDirectMenuItem(EModelService modelService, Class<?> clss, String label) {
+		MDirectMenuItem dynamicItem = modelService.createModelElement(MDirectMenuItem.class);
+		dynamicItem.setLabel(label);
+		Bundle bundle = FrameworkUtil.getBundle(clss);
+		dynamicItem.setContributionURI("bundleclass://" + bundle.getSymbolicName() + "/" + clss.getName());
+		return dynamicItem;
+	}
+
+	/** Singleton. */
+	private CmsE4Utils() {
+	}
+
+}