OpenPropertiesAction.java

/*
 * Contributions to FindBugs
 * Copyright (C) 2009, Andrei Loskutov
 *
 * This library 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 2.1 of the License, or (at your option) any later version.
 *
 * This library 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 this library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 */

package de.tobject.findbugs.actions;

import org.eclipse.core.runtime.CoreException;
import org.eclipse.jface.action.IAction;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.jface.viewers.ISelectionChangedListener;
import org.eclipse.jface.viewers.ISelectionProvider;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.jface.viewers.StructuredSelection;
import org.eclipse.jface.window.IShellProvider;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.ui.IObjectActionDelegate;
import org.eclipse.ui.IPageLayout;
import org.eclipse.ui.IWorkbenchPart;
import org.eclipse.ui.dialogs.PropertyDialogAction;

import de.tobject.findbugs.FindbugsPlugin;
import de.tobject.findbugs.view.explorer.BugGroup;
import de.tobject.findbugs.view.explorer.GroupType;

/**
 * Show details on a selected FindBugs marker.
 */
public class OpenPropertiesAction implements IObjectActionDelegate {

    /** The current selection. */
    private ISelection selection;

    private IWorkbenchPart targetPart;

    public OpenPropertiesAction() {
        super();
    }

    public OpenPropertiesAction(IWorkbenchPart targetPart) {
        super();
        this.targetPart = targetPart;
    }

    public final void setActivePart(final IAction action, final IWorkbenchPart targetPart) {
        this.targetPart = targetPart;
    }

    public final void selectionChanged(final IAction action, final ISelection newSelection) {
        this.selection = newSelection;
    }

    /*
     * (non-Javadoc)
     * 
     * @see org.eclipse.ui.IActionDelegate#run(org.eclipse.jface.action.IAction)
     */
    public final void run(final IAction action) {
        if (targetPart == null) {
            return;
        }
        try {
            if (!selection.isEmpty() && (selection instanceof IStructuredSelection)) {
                IStructuredSelection ssel = (IStructuredSelection) selection;
                Object element = ssel.getFirstElement();
                if (element instanceof BugGroup) {
                    final BugGroup group = (BugGroup) element;
                    if (group.getType() == GroupType.Project) {
                        PropertyDialogAction paction = new PropertyDialogAction(new IShellProvider() {
                            public Shell getShell() {
                                return null;
                            }
                        }, new ISelectionProvider() {
                            public void addSelectionChangedListener(ISelectionChangedListener listener) {
                                // noop
                            }

                            public ISelection getSelection() {
                                return new StructuredSelection(group.getData());
                            }

                            public void removeSelectionChangedListener(ISelectionChangedListener listener) {
                                // noop
                            }

                            public void setSelection(ISelection selection) {
                                // noop
                            }
                        });
                        paction.run();
                        return;
                    }
                }
                targetPart.getSite().getPage().showView(IPageLayout.ID_PROP_SHEET);
            }
        } catch (CoreException e) {
            FindbugsPlugin.getDefault().logException(e, "Exception while parsing content of FindBugs markers.");
        } finally {
            targetPart = null;
        }
    }

}