/*******************************************************************************
* Copyright (c) 2015 vogella GmbH 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:
* Lars Vogel <Lars.Vogel@vogella.com> - initial API and implementation
*******************************************************************************/
package org.eclipse.ui.internal.handlers;
import java.util.List;
import org.eclipse.core.commands.AbstractHandler;
import org.eclipse.core.commands.ExecutionEvent;
import org.eclipse.core.commands.ExecutionException;
import org.eclipse.e4.ui.model.application.ui.basic.MTrimBar;
import org.eclipse.e4.ui.model.application.ui.basic.MTrimmedWindow;
import org.eclipse.e4.ui.workbench.modeling.EModelService;
import org.eclipse.ui.IWorkbenchWindow;
import org.eclipse.ui.handlers.HandlerUtil;
/**
* Handler which allows to hide all trimbars. It adds a tag to the corresponding
* window. If triggered again, it restores the original visibility of the
* trimbars.
*/
public class HideTrimBarsHandler extends AbstractHandler {
/**
*
*/
private static final String INITIAL_TRIM_VISIBILIY = "initialTrimVisibilityValue"; //$NON-NLS-1$
private static final String WINDOWS_WITH_MINIMIZED_TRIMBARS = "windowsWithMinimizedTrimbars"; //$NON-NLS-1$
@Override
public Object execute(ExecutionEvent event) throws ExecutionException {
IWorkbenchWindow window = HandlerUtil.getActiveWorkbenchWindowChecked(event);
MTrimmedWindow winModel = window.getService(MTrimmedWindow.class);
EModelService modelService = window.getService(EModelService.class);
// ensure we have everything we need
if ((winModel == null || modelService == null)) {
return null;
}
if (winModel.getTags().contains(WINDOWS_WITH_MINIMIZED_TRIMBARS)) {
winModel.getTags().remove(WINDOWS_WITH_MINIMIZED_TRIMBARS);
disableCodeFocus(winModel, modelService);
} else {
enableCodeFocus(winModel, modelService);
winModel.getTags().add(WINDOWS_WITH_MINIMIZED_TRIMBARS);
}
return null;
}
private void disableCodeFocus(MTrimmedWindow window, EModelService modelService) {
List<MTrimBar> tcList = modelService.findElements(window, null, MTrimBar.class, null);
for (MTrimBar tc : tcList) {
boolean visible = true;
String initialTrimVisibility = tc.getPersistedState().get(INITIAL_TRIM_VISIBILIY);
if (initialTrimVisibility != null && !initialTrimVisibility.isEmpty()) {
visible = Boolean.parseBoolean(initialTrimVisibility);
tc.getPersistedState().remove(INITIAL_TRIM_VISIBILIY);
}
tc.setVisible(visible);
}
}
private void enableCodeFocus(MTrimmedWindow window, EModelService modelService) {
List<MTrimBar> tcList = modelService.findElements(window, null, MTrimBar.class, null);
for (MTrimBar tc : tcList) {
// remember the visibility state in case some trimbars are already
// not visible
tc.getPersistedState().put(INITIAL_TRIM_VISIBILIY, String.valueOf(tc.isVisible()));
tc.setVisible(false);
}
}
}