Source Code Cross Referenced for ShowJavadocAction.java in  » IDE-Netbeans » api » org » netbeans » modules » apisupport » project » ui » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » IDE Netbeans » api » org.netbeans.modules.apisupport.project.ui 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


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
007:         * General Public License Version 2 only ("GPL") or the Common
008:         * Development and Distribution License("CDDL") (collectively, the
009:         * "License"). You may not use this file except in compliance with the
010:         * License. You can obtain a copy of the License at
011:         * http://www.netbeans.org/cddl-gplv2.html
012:         * or nbbuild/licenses/CDDL-GPL-2-CP. See the License for the
013:         * specific language governing permissions and limitations under the
014:         * License.  When distributing the software, include this License Header
015:         * Notice in each file and include the License file at
016:         * nbbuild/licenses/CDDL-GPL-2-CP.  Sun designates this
017:         * particular file as subject to the "Classpath" exception as provided
018:         * by Sun in the GPL Version 2 section of the License file that
019:         * accompanied this code. If applicable, add the following below the
020:         * License Header, with the fields enclosed by brackets [] replaced by
021:         * your own identifying information:
022:         * "Portions Copyrighted [year] [name of copyright owner]"
023:         *
024:         * Contributor(s):
025:         *
026:         * The Original Software is NetBeans. The Initial Developer of the Original
027:         * Software is Sun Microsystems, Inc. Portions Copyright 1997-2006 Sun
028:         * Microsystems, Inc. All Rights Reserved.
029:         *
030:         * If you wish your version of this file to be governed by only the CDDL
031:         * or only the GPL Version 2, indicate your decision by adding
032:         * "[Contributor] elects to include this software in this distribution
033:         * under the [CDDL or GPL Version 2] license." If you do not indicate a
034:         * single choice of license, a recipient has the option to distribute
035:         * your version of this file under either the CDDL, the GPL Version 2 or
036:         * to extend the choice of license to its licensees as provided above.
037:         * However, if you add GPL Version 2 code and therefore, elected the GPL
038:         * Version 2 license, then the option applies only if the new code is
039:         * made subject to such option by the copyright holder.
040:         */
041:
042:        package org.netbeans.modules.apisupport.project.ui;
043:
044:        import java.net.URL;
045:        import java.net.MalformedURLException;
046:        import org.openide.ErrorManager;
047:        import org.openide.awt.HtmlBrowser;
048:        import org.openide.awt.StatusDisplayer;
049:        import org.openide.filesystems.FileObject;
050:        import org.openide.filesystems.URLMapper;
051:        import org.openide.nodes.Node;
052:        import org.openide.util.NbBundle;
053:        import org.openide.util.HelpCtx;
054:        import org.openide.util.actions.NodeAction;
055:
056:        // XXX this class is more or less copy-pasted PlatformNode from j2seproject.
057:        // Get rid of it as soon as "some" Libraries Node API is provided.
058:
059:        /**
060:         * Action for showing Javadoc. The action looks up
061:         * the {@link ShowJavadocAction.JavadocProvider} in the
062:         * activated node's Lookup and delegates to it.
063:         * @author Tomas Zezula
064:         */
065:        final class ShowJavadocAction extends NodeAction {
066:
067:            /**
068:             * Implementation of this interfaces has to be placed
069:             * into the node's Lookup to allow {@link ShowJavadocAction}
070:             * on the node.
071:             */
072:            public static interface JavadocProvider {
073:
074:                /**
075:                 * Checks if the node can provide Javaodc
076:                 * @return true if the action should be enabled
077:                 */
078:                public abstract boolean hasJavadoc();
079:
080:                /**
081:                 * Opens javadoc page in the browser
082:                 */
083:                public abstract void showJavadoc();
084:            }
085:
086:            protected void performAction(Node[] activatedNodes) {
087:                if (activatedNodes.length != 1) {
088:                    return;
089:                }
090:                JavadocProvider jd = (JavadocProvider) activatedNodes[0]
091:                        .getLookup().lookup(JavadocProvider.class);
092:                if (jd == null) {
093:                    return;
094:                }
095:                jd.showJavadoc();
096:            }
097:
098:            protected boolean enable(Node[] activatedNodes) {
099:                if (activatedNodes.length != 1) {
100:                    return false;
101:                }
102:                JavadocProvider jd = (JavadocProvider) activatedNodes[0]
103:                        .getLookup().lookup(JavadocProvider.class);
104:                if (jd == null) {
105:                    return false;
106:                }
107:                return jd.hasJavadoc();
108:            }
109:
110:            public final String getName() {
111:                return NbBundle.getMessage(ShowJavadocAction.class,
112:                        "CTL_ShowJavadoc");
113:            }
114:
115:            public final HelpCtx getHelpCtx() {
116:                return new HelpCtx(ShowJavadocAction.class);
117:            }
118:
119:            public final boolean asynchronous() {
120:                return false;
121:            }
122:
123:            /**
124:             * Opens the IDE default browser with given URL
125:             * @param javadoc URL of the javadoc page
126:             * @param displayName the name of file to be displayed, typically the package name for class
127:             * or project name for project.
128:             */
129:            static void showJavaDoc(URL javadoc, String displayName) {
130:                if (javadoc != null) {
131:                    HtmlBrowser.URLDisplayer.getDefault().showURL(javadoc);
132:                } else {
133:                    StatusDisplayer.getDefault().setStatusText(
134:                            NbBundle.getMessage(ShowJavadocAction.class,
135:                                    "TXT_NoJavadoc", displayName));
136:                }
137:            }
138:
139:            /**
140:             * Locates a javadoc page by a relative name and an array of javadoc roots
141:             * @param resource the relative name of javadoc page
142:             * @param urls the array of javadoc roots
143:             * @return the URL of found javadoc page or null if there is no such a page.
144:             */
145:            static URL findJavadoc(String resource, URL urls[]) {
146:                for (int i = 0; i < urls.length; i++) {
147:                    String base = urls[i].toExternalForm();
148:                    if (!base.endsWith("/")) { // NOI18N
149:                        base += "/"; // NOI18N
150:                    }
151:                    try {
152:                        URL u = new URL(base + resource);
153:                        FileObject fo = URLMapper.findFileObject(u);
154:                        if (fo != null) {
155:                            return u;
156:                        }
157:                    } catch (MalformedURLException ex) {
158:                        ErrorManager.getDefault().log(
159:                                ErrorManager.ERROR,
160:                                "Cannot create URL for " + base + resource
161:                                        + ". " + ex.toString()); //NOI18N
162:                        continue;
163:                    }
164:                }
165:                return null;
166:            }
167:
168:        }
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