org.eclipse.ui.internal.views.markers.DeleteHandler.java Source code

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Here is the source code for org.eclipse.ui.internal.views.markers.DeleteHandler.java

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/*******************************************************************************
 * Copyright (c) 2007, 2011 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.views.markers;

import org.eclipse.core.commands.ExecutionEvent;
import org.eclipse.core.commands.operations.IUndoableOperation;
import org.eclipse.core.resources.IMarker;
import org.eclipse.core.resources.WorkspaceJob;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.core.runtime.Status;
import org.eclipse.jface.dialogs.IDialogConstants;
import org.eclipse.jface.dialogs.MessageDialog;
import org.eclipse.ui.ide.undo.DeleteMarkersOperation;
import org.eclipse.ui.ide.undo.WorkspaceUndoUtil;
import org.eclipse.ui.internal.ide.IDEWorkbenchMessages;
import org.eclipse.ui.views.markers.MarkerSupportView;
import org.eclipse.ui.views.markers.MarkerViewHandler;
import org.eclipse.ui.views.markers.internal.MarkerMessages;

/**
 * DeleteHandler is the handler for the deletion of a marker.
 * 
 * @since 3.4
 * 
 */
public class DeleteHandler extends MarkerViewHandler {

    /*
     * (non-Javadoc)
     * 
     * @see org.eclipse.core.commands.IHandler#execute(org.eclipse.core.commands.ExecutionEvent)
     */
    public Object execute(ExecutionEvent event) {

        final MarkerSupportView view = getView(event);
        if (view == null)
            return this;

        final IMarker[] selected = getSelectedMarkers(event);

        // Verify.
        MessageDialog dialog = new MessageDialog(view.getSite().getShell(), MarkerMessages.deleteActionConfirmTitle,
                null, // icon
                MarkerMessages.deleteActionConfirmMessage, MessageDialog.WARNING,
                new String[] { IDialogConstants.YES_LABEL, IDialogConstants.NO_LABEL }, 0);

        if (dialog.open() != 0) {
            return view;
        }

        WorkspaceJob deleteJob = new WorkspaceJob(IDEWorkbenchMessages.MarkerDeleteHandler_JobTitle) { //See Bug#250807
            public IStatus runInWorkspace(IProgressMonitor monitor) {
                monitor.beginTask(IDEWorkbenchMessages.MarkerDeleteHandler_JobMessageLabel, 10 * selected.length);
                try {
                    IUndoableOperation op = new DeleteMarkersOperation(selected,
                            view.getDeleteOperationName(selected));
                    op.addContext(view.getUndoContext());
                    execute(op, MarkerMessages.deleteMarkers_errorMessage, monitor,
                            WorkspaceUndoUtil.getUIInfoAdapter(view.getSite().getShell()));
                } finally {
                    monitor.done();
                }
                return Status.OK_STATUS;
            }
        };
        deleteJob.setUser(true);
        deleteJob.schedule();

        return this;
    }
}