package org.argeo.cms.e4;
import java.util.List;
import org.argeo.cms.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 null
if not found.
*/
public static MCommand findCommand(EModelService modelService, MApplication app, String commandId) {
List 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() {
}
}