01: /*
02: * Licensed to the Apache Software Foundation (ASF) under one or more
03: * contributor license agreements. See the NOTICE file distributed with
04: * this work for additional information regarding copyright ownership.
05: * The ASF licenses this file to You under the Apache License, Version 2.0
06: * (the "License"); you may not use this file except in compliance with
07: * the License. You may obtain a copy of the License at
08: *
09: * http://www.apache.org/licenses/LICENSE-2.0
10: *
11: * Unless required by applicable law or agreed to in writing, software
12: * distributed under the License is distributed on an "AS IS" BASIS,
13: * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14: * See the License for the specific language governing permissions and
15: * limitations under the License.
16: */
17: package org.apache.wicket.extensions.wizard;
18:
19: /**
20: * Models a previous button in the wizard. When pressed, it moves the wizard
21: * state to the previous step of the model by calling
22: * {@link IWizardModel#previous() previous} on the wizard's model.
23: *
24: * @author Eelco Hillenius
25: */
26: public final class PreviousButton extends WizardButton {
27: private static final long serialVersionUID = 1L;
28:
29: /**
30: * Construct.
31: *
32: * @param id
33: * The component id
34: * @param wizard
35: * The wizard
36: */
37: public PreviousButton(String id, IWizard wizard) {
38: super (id, wizard,
39: "org.apache.wicket.extensions.wizard.previous");
40: setDefaultFormProcessing(false);
41: }
42:
43: /**
44: * @see org.apache.wicket.Component#isEnabled()
45: */
46: public final boolean isEnabled() {
47: return getWizardModel().isPreviousAvailable();
48: }
49:
50: /**
51: * @see org.apache.wicket.extensions.wizard.WizardButton#onClick()
52: */
53: public final void onClick() {
54: getWizardModel().previous();
55: }
56: }
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