1 /**
2 * This file Copyright (c) 2012 Magnolia International
3 * Ltd. (http://www.magnolia-cms.com). All rights reserved.
4 *
5 *
6 * This file is dual-licensed under both the Magnolia
7 * Network Agreement and the GNU General Public License.
8 * You may elect to use one or the other of these licenses.
9 *
10 * This file is distributed in the hope that it will be
11 * useful, but AS-IS and WITHOUT ANY WARRANTY; without even the
12 * implied warranty of MERCHANTABILITY or FITNESS FOR A
13 * PARTICULAR PURPOSE, TITLE, or NONINFRINGEMENT.
14 * Redistribution, except as permitted by whichever of the GPL
15 * or MNA you select, is prohibited.
16 *
17 * 1. For the GPL license (GPL), you can redistribute and/or
18 * modify this file under the terms of the GNU General
19 * Public License, Version 3, as published by the Free Software
20 * Foundation. You should have received a copy of the GNU
21 * General Public License, Version 3 along with this program;
22 * if not, write to the Free Software Foundation, Inc., 51
23 * Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
24 *
25 * 2. For the Magnolia Network Agreement (MNA), this file
26 * and the accompanying materials are made available under the
27 * terms of the MNA which accompanies this distribution, and
28 * is available at http://www.magnolia-cms.com/mna.html
29 *
30 * Any modifications to this file must keep this entire header
31 * intact.
32 *
33 */
34 package info.magnolia.templating.editor.client.widget.button;
35
36 import java.util.List;
37
38 import com.google.gwt.event.dom.client.ClickEvent;
39 import com.google.gwt.event.dom.client.ClickHandler;
40 import com.google.gwt.user.client.Command;
41 import com.google.gwt.user.client.ui.Button;
42 import com.google.gwt.user.client.ui.Composite;
43 import com.google.gwt.user.client.ui.FlowPanel;
44 import com.google.gwt.user.client.ui.MenuItem;
45
46 /**
47 * Preview button composed by two buttons: left-hand side button is for the default action, whereas right-hand side button will display a dropdown menu with further options.
48 * @version $Id$
49 *
50 */
51 public final class PreviewButton extends Composite {
52
53 private FlowPanel panel = new FlowPanel();
54 private Button defaultActionButton = new Button();
55
56 public PreviewButton(final String caption, final Command defaultAction, final List<MenuItem> menuItems) {
57 initWidget(panel);
58 defaultActionButton.setHTML(caption);
59 defaultActionButton.setStylePrimaryName("mgnlEditorButton");
60 defaultActionButton.addClickHandler(new ClickHandler() {
61
62 @Override
63 public void onClick(ClickEvent event) {
64 defaultAction.execute();
65 }
66 });
67
68 panel.add(defaultActionButton);
69
70 final PreviewDropdownButton dropdown = new PreviewDropdownButton(menuItems);
71 dropdown.setStylePrimaryName("mgnlEditorButton");
72 dropdown.addStyleDependentName("previewMenuButton");
73 panel.add(dropdown);
74 }
75
76 /*
77 * Extends {@link DropdownButton} in order to left align itself with the default (lhs) button.
78 */
79 private final class PreviewDropdownButton extends DropdownButton {
80
81 public PreviewDropdownButton(final List<MenuItem> menuItems) {
82 super("-", menuItems); // We have to put at least a label here to ensure it gets properly aligned with other text buttons around.
83 }
84
85 @Override
86 protected void onClickCallback(ClickEvent event) {
87 setDropdownPosition(panel.getAbsoluteLeft(), panel.getAbsoluteTop() + panel.getOffsetHeight());
88 showDropdown();
89 }
90 }
91 }