com.googlecode.osde.internal.ui.views.people.AddRelationshipDialog.java Source code

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Here is the source code for com.googlecode.osde.internal.ui.views.people.AddRelationshipDialog.java

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/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements. See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership. The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License. You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied. See the License for the
 * specific language governing permissions and limitations under the License.
 */
package com.googlecode.osde.internal.ui.views.people;

import java.util.List;

import org.apache.commons.lang.StringUtils;
import org.apache.shindig.social.opensocial.model.Person;
import org.eclipse.jface.dialogs.IDialogConstants;
import org.eclipse.jface.dialogs.IMessageProvider;
import org.eclipse.jface.dialogs.TitleAreaDialog;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.jface.viewers.TableViewer;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.ModifyEvent;
import org.eclipse.swt.events.ModifyListener;
import org.eclipse.swt.graphics.Point;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Combo;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.Label;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.swt.widgets.Table;
import org.eclipse.swt.widgets.TableColumn;

public class AddRelationshipDialog extends TitleAreaDialog {

    private List<Person> people;
    private Combo groupIdCombo;
    private TableViewer personList;
    private String groupId;
    private Person target;

    private ModifyListener modifyListener = new ModifyListener() {
        public void modifyText(ModifyEvent e) {
            validate();
        }
    };

    public AddRelationshipDialog(Shell shell, List<Person> people) {
        super(shell);
        this.people = people;
    }

    @Override
    protected Control createDialogArea(Composite parent) {
        setTitle("Add relationship");
        setMessage("Please select person and input group ID.");
        Composite composite = (Composite) super.createDialogArea(parent);
        Composite panel = new Composite(composite, SWT.NONE);
        GridLayout layout = new GridLayout();
        layout.numColumns = 2;
        panel.setLayout(layout);
        GridData layoutData = new GridData(GridData.FILL_BOTH);
        panel.setLayoutData(layoutData);
        //
        Label label = new Label(panel, SWT.NONE);
        label.setText("Group ID:");
        groupIdCombo = new Combo(panel, SWT.DROP_DOWN);
        groupIdCombo.add("friends");
        layoutData = new GridData(GridData.FILL_HORIZONTAL);
        groupIdCombo.setLayoutData(layoutData);
        groupIdCombo.addModifyListener(modifyListener);
        //
        label = new Label(panel, SWT.NONE);
        label.setText("Person:");
        layoutData = new GridData(GridData.VERTICAL_ALIGN_BEGINNING);
        label.setLayoutData(layoutData);
        Table table = new Table(panel, SWT.SINGLE | SWT.H_SCROLL | SWT.V_SCROLL | SWT.FULL_SELECTION | SWT.BORDER);
        table.setHeaderVisible(true);
        table.setLinesVisible(true);
        layoutData = new GridData(GridData.FILL_BOTH);
        table.setLayoutData(layoutData);
        TableColumn column = new TableColumn(table, SWT.LEFT, 0);
        column.setText("");
        column.setWidth(20);
        column = new TableColumn(table, SWT.LEFT, 1);
        column.setText("ID");
        column.setWidth(250);
        personList = new TableViewer(table);
        personList.setContentProvider(new PersonListContentProvider());
        personList.setLabelProvider(new PersonListLabelProvider());
        personList.setInput(people);
        //
        return composite;
    }

    @Override
    protected Point getInitialSize() {
        return new Point(400, 300);
    }

    @Override
    protected void okPressed() {
        groupId = groupIdCombo.getText();
        target = (Person) ((IStructuredSelection) personList.getSelection()).getFirstElement();
        if (target == null) {
            setMessage("Person is required.", IMessageProvider.ERROR);
            setReturnCode(CANCEL);
            return;
        }
        setReturnCode(OK);
        close();
    }

    public String getGroupId() {
        return groupId;
    }

    public Person getTarget() {
        return target;
    }

    @Override
    protected void createButtonsForButtonBar(Composite parent) {
        super.createButtonsForButtonBar(parent);
        getButton(IDialogConstants.OK_ID).setEnabled(false);
    }

    private boolean validate() {
        String groupId = groupIdCombo.getText().trim();
        if (StringUtils.isEmpty(groupId)) {
            setMessage("Group ID is required.", IMessageProvider.ERROR);
            getButton(IDialogConstants.OK_ID).setEnabled(false);
            return false;
        }
        setMessage(null);
        getButton(IDialogConstants.OK_ID).setEnabled(true);
        return true;
    }

}