001: /*
002: * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
003: *
004: * Copyright 1997-2007 Sun Microsystems, Inc. All rights reserved.
005: *
006: * The contents of this file are subject to the terms of either the GNU General
007: * Public License Version 2 only ("GPL") or the Common Development and Distribution
008: * License("CDDL") (collectively, the "License"). You may not use this file except in
009: * compliance with the License. You can obtain a copy of the License at
010: * http://www.netbeans.org/cddl-gplv2.html or nbbuild/licenses/CDDL-GPL-2-CP. See the
011: * License for the specific language governing permissions and limitations under the
012: * License. When distributing the software, include this License Header Notice in
013: * each file and include the License file at nbbuild/licenses/CDDL-GPL-2-CP. Sun
014: * designates this particular file as subject to the "Classpath" exception as
015: * provided by Sun in the GPL Version 2 section of the License file that
016: * accompanied this code. If applicable, add the following below the License Header,
017: * with the fields enclosed by brackets [] replaced by your own identifying
018: * information: "Portions Copyrighted [year] [name of copyright owner]"
019: *
020: * Contributor(s):
021: *
022: * The Original Software is NetBeans. The Initial Developer of the Original Software
023: * is Sun Microsystems, Inc. Portions Copyright 1997-2007 Sun Microsystems, Inc. All
024: * Rights Reserved.
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026: * If you wish your version of this file to be governed by only the CDDL or only the
027: * GPL Version 2, indicate your decision by adding "[Contributor] elects to include
028: * this software in this distribution under the [CDDL or GPL Version 2] license." If
029: * you do not indicate a single choice of license, a recipient has the option to
030: * distribute your version of this file under either the CDDL, the GPL Version 2 or
031: * to extend the choice of license to its licensees as provided above. However, if
032: * you add GPL Version 2 code and therefore, elected the GPL Version 2 license, then
033: * the option applies only if the new code is made subject to such option by the
034: * copyright holder.
035: */
036:
037: package org.netbeans.installer.wizard.components.sequences;
038:
039: import java.util.List;
040: import org.netbeans.installer.product.components.Product;
041: import org.netbeans.installer.wizard.components.WizardComponent;
042: import org.netbeans.installer.wizard.components.WizardSequence;
043:
044: public class ProductWizardSequence extends WizardSequence {
045: private Product product;
046:
047: public ProductWizardSequence(final Product product) {
048: this .product = product;
049: }
050:
051: public void executeForward() {
052: childWizard = getWizard().createSubWizard(
053: product.getWizardComponents(), -1, product,
054: product.getClassLoader());
055:
056: childWizard.getContext().put(product);
057: childWizard.next();
058: }
059:
060: public void executeBackward() {
061: childWizard = getWizard().createSubWizard(
062: product.getWizardComponents(),
063: product.getWizardComponents().size(), product,
064: product.getClassLoader());
065:
066: childWizard.getContext().put(product);
067: childWizard.previous();
068: }
069:
070: public boolean canExecuteForward() {
071: if (product.isLogicDownloaded()) {
072: List<WizardComponent> components = product
073: .getWizardComponents();
074:
075: for (int i = 0; i < components.size(); i++) {
076: WizardComponent component = components.get(i);
077:
078: // if the component can be executed forward the whole sequence
079: // can be executed as well
080: if (component.canExecuteForward()) {
081: return true;
082: }
083: }
084: }
085:
086: return false;
087: }
088:
089: public boolean canExecuteBackward() {
090: if (product.isLogicDownloaded()) {
091: List<WizardComponent> components = product
092: .getWizardComponents();
093:
094: for (int i = components.size() - 1; i > -1; i--) {
095: WizardComponent component = components.get(i);
096:
097: // if the component can be executed backward the whole sequence can
098: // be executed as well
099: if (component.canExecuteBackward()) {
100: return true;
101: }
102:
103: // if the currently examined component is a point of no return and
104: // it cannot be executed (since we passed the previous statement) -
105: // we have no previous component
106: if (component.isPointOfNoReturn()) {
107: return false;
108: }
109: }
110: }
111:
112: return false;
113: }
114:
115: public boolean isPointOfNoReturn() {
116: if (product.isLogicDownloaded()) {
117: List<WizardComponent> components = product
118: .getWizardComponents();
119:
120: if (childWizard != null) {
121: for (int i = 0; i < components.size(); i++) {
122: if (components.get(i).isPointOfNoReturn()
123: && (i < childWizard.getIndex())) {
124: return true;
125: }
126: }
127: }
128: }
129:
130: return false;
131: }
132: }
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