/**
* Copyright 2004-2016 Riccardo Solmi. All rights reserved.
* This file is part of the Whole Platform.
*
* The Whole Platform is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* The Whole Platform is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with the Whole Platform. If not, see <http://www.gnu.org/licenses/>.
*/
package org.whole.lang.e4.ui.handler;
import javax.inject.Named;
import org.eclipse.e4.core.contexts.ContextInjectionFactory;
import org.eclipse.e4.core.contexts.IEclipseContext;
import org.eclipse.e4.core.di.annotations.Execute;
import org.eclipse.e4.core.di.annotations.Optional;
import org.eclipse.e4.ui.model.application.ui.basic.MWindow;
import org.eclipse.e4.ui.services.IServiceConstants;
import org.whole.lang.bindings.IBindingManager;
import org.whole.lang.commons.factories.CommonsEntityFactory;
import org.whole.lang.commons.reflect.CommonsEntityDescriptorEnum;
import org.whole.lang.e4.ui.dialogs.E4FindReplaceDialog;
import org.whole.lang.matchers.Matcher;
import org.whole.lang.util.EntityUtils;
/**
* @author Enrico Persiani
*/
public class FindReplaceHandler {
private static E4FindReplaceDialog instance = null;
private static MWindow contextWindow = null;
@Execute
public void execute(IEclipseContext context, @Optional @Named(IServiceConstants.ACTIVE_SELECTION) IBindingManager bm) {
if (instance == null || instance.getShell() == null || instance.getShell().isDisposed())
// initially create ad new find replace dialog
instance = ContextInjectionFactory.make(E4FindReplaceDialog.class, context);
else if (contextWindow != context.get(MWindow.class)) {
// if find replace dialog already created but context window has changed recreate the dialog
instance.close();
instance = ContextInjectionFactory.make(E4FindReplaceDialog.class, context);
}
// update context window
contextWindow = context.get(MWindow.class);
// display the dialog with updated contents
instance.getShell().setActive();
instance.setTemplate(bm.wIsSet("primarySelectedEntity") &&
!Matcher.matchImpl(CommonsEntityDescriptorEnum.RootFragment, bm.wGet("primarySelectedEntity")) ?
EntityUtils.clone(bm.wGet("primarySelectedEntity")) : CommonsEntityFactory.instance.createResolver());
}
}