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/*****************************************************************************
* Copyright (c) 2011, 2013 CEA LIST 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:
* Vincent Lorenzo (CEA LIST) vincent.lorenzo@cea.fr - Initial API and implementation
* Christian W. Damus (CEA LIST) - Consolidate all hyperlink helper contributions into one tab
*
*****************************************************************************/
package org.eclipse.papyrus.infra.hyperlink.util;
import java.util.Collection;
import java.util.Map;
import java.util.TreeMap;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IConfigurationElement;
import org.eclipse.core.runtime.Platform;
import org.eclipse.osgi.util.NLS;
import org.eclipse.papyrus.infra.hyperlink.Activator;
import org.eclipse.papyrus.infra.hyperlink.helper.AbstractHyperLinkHelper;
import org.eclipse.papyrus.infra.hyperlink.messages.Messages;
import org.eclipse.papyrus.infra.hyperlink.ui.AbstractHyperLinkTab;
import org.eclipse.papyrus.infra.hyperlink.ui.HyperLinkTab;
/**
*
* This class creates all the tabs for the HyperLink Shell
*
*/
public class HyperLinkTabsRegistrationUtil {
/**
* The id to get the registered hyperlink tab
*/
public static final String HYPERLINK_TAB_REGISTRATION_ID = "org.eclipse.papyrus.infra.hyperlink.tab.registration"; //$NON-NLS-1$
/**
* The 3 parameters for of the tab extension point
*/
public static final String TAB = "tab"; //$NON-NLS-1$
public static final String POSITION = "position"; //$NON-NLS-1$
public static final String TAB_ID = "tabId"; //$NON-NLS-1$
/** The ID of the tab that shows helper-based contributions. */
private static final String GENERIC_TAB_ID = "org.eclipse.papyrus.infra.hyperlink.helpers"; //$NON-NLS-1$
/** the instance of HyperLinkTabsRegistrationUtil */
public static final HyperLinkTabsRegistrationUtil INSTANCE = new HyperLinkTabsRegistrationUtil();
/**
*
* Constructor.
*
*/
private HyperLinkTabsRegistrationUtil() {
// nothing to do
}
/**
*
* @return
* the tabs for the HyperLink Shell, sorted by position
*/
public Collection<AbstractHyperLinkTab> getAllHyperLinkTab() {
// should not be a global variable, because we should create the tabs each time!
final Map<Integer, AbstractHyperLinkTab> allTabs;
allTabs = new TreeMap<Integer, AbstractHyperLinkTab>();
IConfigurationElement[] config = Platform.getExtensionRegistry().getConfigurationElementsFor(HYPERLINK_TAB_REGISTRATION_ID);
for (IConfigurationElement e : config) {
AbstractHyperLinkTab tab = null;
try {
final Object h = e.createExecutableExtension(TAB);
if (h instanceof AbstractHyperLinkTab) {
tab = (AbstractHyperLinkTab) h;
final String o = e.getAttribute(POSITION);
final Integer position = Integer.valueOf(o);
final String tabId = e.getAttribute(TAB_ID);
tab.setTabId(tabId);
allTabs.put(position, tab);
} else {
Activator.log.info(NLS.bind(Messages.HyperLinkTabRegistrationUtil_NotAnInstanceOf, new Object[] { h, AbstractHyperLinkTab.class }));
}
} catch (NumberFormatException ex) {
Activator.log.error(NLS.bind(Messages.HyperLinkTabRegistrationUtil_tabWillBeIgnored, tab), ex);
} catch (CoreException ex) {
Activator.log.error(Messages.HyperLinkTabRegistrationUtil_ICantCreateTheTab, ex);
}
}
// we create the tab for the helpers
Map<Integer, AbstractHyperLinkHelper> helpers = HyperLinkHelpersRegistrationUtil.INSTANCE.getHelperWithPosition();
if (!helpers.isEmpty()) {
// use the least position requested by the helpers as the tab position
allTabs.put(helpers.keySet().iterator().next(), new HyperLinkTab(GENERIC_TAB_ID, helpers.values()));
}
return allTabs.values();
}
}
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