/*******************************************************************************
* Copyright (c) 2006 IBM Corporation and others.
* 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:
* IBM Corporation - initial API and implementation
******************************************************************************/
package org.eclipse.ui.internal.activities;
import org.eclipse.core.expressions.PropertyTester;
import org.eclipse.ui.IWorkbench;
import org.eclipse.ui.activities.IActivityManager;
import org.eclipse.ui.activities.IWorkbenchActivitySupport;
import org.eclipse.ui.activities.WorkbenchActivityHelper;
/**
* An expressions property tester that tests whether or not an activity or
* category of activities is enabled. Useful for cross-component links and to
* control discoverability of functionality.
*
* @since 3.3
*/
public class ActivityPropertyTester extends PropertyTester {
private static final String PROPERTY_IS_ACTIVITY_ENABLED = "isActivityEnabled"; //$NON-NLS-1$
private static final String PROPERTY_IS_CATEGORY_ENABLED = "isCategoryEnabled"; //$NON-NLS-1$
/*
* (non-Javadoc)
*
* @see org.eclipse.core.expressions.PropertyTester#test(java.lang.Object,
* java.lang.String, java.lang.Object[], java.lang.Object)
*/
public boolean test(Object receiver, String property, Object[] args,
Object expectedValue) {
if (args.length == 1 && receiver instanceof IWorkbench && args[0] instanceof String) {
if (PROPERTY_IS_ACTIVITY_ENABLED.equals(property)) {
return isActivityEnabled((String) args[0], (IWorkbench)receiver);
} else if (PROPERTY_IS_CATEGORY_ENABLED.equals(property)) {
return isCategoryEnabled((String) args[0], (IWorkbench)receiver);
}
}
return false;
}
private static boolean isActivityEnabled(String activityId, IWorkbench workbench) {
try {
IWorkbenchActivitySupport workbenchActivitySupport =
workbench.getActivitySupport();
IActivityManager activityManager = workbenchActivitySupport
.getActivityManager();
return activityManager.getActivity(activityId).isEnabled();
} catch (Exception e) {
// workbench not yet activated; nothing enabled yet
}
return false;
}
private static boolean isCategoryEnabled(String categoryId, IWorkbench workbench) {
try {
IWorkbenchActivitySupport workbenchActivitySupport =
workbench.getActivitySupport();
IActivityManager activityManager = workbenchActivitySupport
.getActivityManager();
return WorkbenchActivityHelper.isEnabled(activityManager,
categoryId);
} catch (Exception e) {
// workbench not yet activated; nothing enabled yet
}
return false;
}
}