001: /*
002: * This file is part of the Echo Web Application Framework (hereinafter "Echo").
003: * Copyright (C) 2002-2005 NextApp, Inc.
004: *
005: * Version: MPL 1.1/GPL 2.0/LGPL 2.1
006: *
007: * The contents of this file are subject to the Mozilla Public License Version
008: * 1.1 (the "License"); you may not use this file except in compliance with
009: * the License. You may obtain a copy of the License at
010: * http://www.mozilla.org/MPL/
011: *
012: * Software distributed under the License is distributed on an "AS IS" basis,
013: * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
014: * for the specific language governing rights and limitations under the
015: * License.
016: *
017: * Alternatively, the contents of this file may be used under the terms of
018: * either the GNU General Public License Version 2 or later (the "GPL"), or
019: * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
020: * in which case the provisions of the GPL or the LGPL are applicable instead
021: * of those above. If you wish to allow use of your version of this file only
022: * under the terms of either the GPL or the LGPL, and not to allow others to
023: * use your version of this file under the terms of the MPL, indicate your
024: * decision by deleting the provisions above and replace them with the notice
025: * and other provisions required by the GPL or the LGPL. If you do not delete
026: * the provisions above, a recipient may use your version of this file under
027: * the terms of any one of the MPL, the GPL or the LGPL.
028: */
029:
030: package nextapp.echo2.app;
031:
032: /**
033: * A top-level window.
034: */
035: public class Window extends Component {
036:
037: public static final String PROPERTY_TITLE = "title";
038:
039: /**
040: * Creates a new window.
041: */
042: public Window() {
043: super ();
044: add(new ContentPane());
045: }
046:
047: /**
048: * Returns the content of the window.
049: *
050: * @return the content of the window
051: */
052: public ContentPane getContent() {
053: if (getComponentCount() == 0) {
054: return null;
055: } else {
056: return (ContentPane) getComponent(0);
057: }
058: }
059:
060: /**
061: * Returns the window title.
062: *
063: * @return the window title
064: */
065: public String getTitle() {
066: return (String) getProperty(PROPERTY_TITLE);
067: }
068:
069: /**
070: * @see nextapp.echo2.app.Component#isValidChild(nextapp.echo2.app.Component)
071: */
072: public boolean isValidChild(Component component) {
073: return getComponentCount() == 0
074: && component instanceof ContentPane;
075: }
076:
077: /**
078: * Reject all parents (<code>Window</code> may only be used as a
079: * top-level component).
080: *
081: * @see nextapp.echo2.app.Component#isValidParent(nextapp.echo2.app.Component)
082: */
083: public boolean isValidParent(Component parent) {
084: return false;
085: }
086:
087: /**
088: * Sets the content of the window.
089: *
090: * @param newValue the new window content
091: */
092: public void setContent(ContentPane newValue) {
093: removeAll();
094: add(newValue);
095: }
096:
097: /**
098: * Sets the window title.
099: *
100: * @param newValue the new window title
101: */
102: public void setTitle(String newValue) {
103: setProperty(PROPERTY_TITLE, newValue);
104: }
105: }
|