org.elbe.relations.internal.controls.BookmarksView.java Source code

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Here is the source code for org.elbe.relations.internal.controls.BookmarksView.java

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/***************************************************************************
 * This package is part of Relations application.
 * Copyright (C) 2004-2013, Benno Luthiger
 * 
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU 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
 * General Public License for more details.
 * 
 * You should have received a copy of the GNU 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 org.elbe.relations.internal.controls;

import javax.annotation.PostConstruct;
import javax.inject.Inject;

import org.eclipse.e4.ui.di.Focus;
import org.eclipse.e4.ui.di.PersistState;
import org.eclipse.e4.ui.model.application.ui.basic.MPart;
import org.eclipse.e4.ui.workbench.swt.modeling.EMenuService;
import org.eclipse.jface.databinding.viewers.ObservableListContentProvider;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.jface.viewers.TableViewer;
import org.eclipse.swt.SWT;
import org.eclipse.swt.dnd.DND;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Table;
import org.elbe.relations.RelationsConstants;
import org.elbe.relations.internal.controller.BookmarksController;
import org.elbe.relations.search.RetrievedItemWithIcon;

/**
 * View to display the bookmarks.
 * 
 * @author Luthiger
 */
@SuppressWarnings("restriction")
public class BookmarksView extends AbstractToolPart {
    private final TableViewer bookmarksView;

    @Inject
    private BookmarksController bookmarksController;

    @Inject
    public BookmarksView(final Composite inParent) {
        bookmarksView = new TableViewer(inParent, SWT.H_SCROLL | SWT.V_SCROLL | SWT.BORDER | SWT.MULTI);
        bookmarksView.setContentProvider(new ObservableListContentProvider());
        bookmarksView.setLabelProvider(getLabelProvider());
        bookmarksView.addDoubleClickListener(getDoubleClickListener());
        bookmarksView.addDragSupport(DND.DROP_COPY, getDragTypes(), getDragSourceAdapter(bookmarksView));
        bookmarksView.addSelectionChangedListener(getSelectionChangedListener());
    }

    @PostConstruct
    void initialize(final MPart inPart, final EMenuService inService) {
        afterInit(inPart, inService);
        bookmarksController.initialize(inPart);
    }

    @Focus
    void setFocus() {
        bookmarksView.setInput(bookmarksController.getBookmarks());
        final Table lTable = bookmarksView.getTable();
        lTable.setFocus();
        if (bookmarksView.getSelection().isEmpty()) {
            lTable.select(0);
        }
    }

    /*
     * (non-Javadoc)
     * 
     * @see org.elbe.relations.internal.controls.AbstractToolPart#getControl()
     */
    @Override
    protected Object getControl() {
        return bookmarksView.getControl();
    }

    /*
     * (non-Javadoc)
     * 
     * @see
     * org.elbe.relations.internal.controls.AbstractToolPart#getContextMenuID()
     */
    @Override
    protected String getContextMenuID() {
        return RelationsConstants.POPUP_TOOLS_BOOKMARKS;
    }

    @PersistState
    void persist() {
        bookmarksController.storeBookmarks();
    }

    /**
     * @return boolean <code>true</code> if the view is filled and an element is
     *         selected
     */
    @Override
    public boolean hasSelection() {
        return !bookmarksView.getSelection().isEmpty();
    }

    /**
     * Removes the selected item.
     */
    public void removeSelected() {
        final Object lSelected = ((IStructuredSelection) bookmarksView.getSelection()).getFirstElement();
        if (lSelected instanceof RetrievedItemWithIcon) {
            bookmarksView.remove(lSelected);
            bookmarksController.removeItem(lSelected);
        }
    }

}