Source Code Cross Referenced for HTMLOptionElementImpl.java in  » Web-Server » Rimfaxe-Web-Server » org » apache » html » dom » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » Web Server » Rimfaxe Web Server » org.apache.html.dom 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        /*
002:         * The Apache Software License, Version 1.1
003:         *
004:         *
005:         * Copyright (c) 1999,2000 The Apache Software Foundation.  All rights 
006:         * reserved.
007:         *
008:         * Redistribution and use in source and binary forms, with or without
009:         * modification, are permitted provided that the following conditions
010:         * are met:
011:         *
012:         * 1. Redistributions of source code must retain the above copyright
013:         *    notice, this list of conditions and the following disclaimer. 
014:         *
015:         * 2. Redistributions in binary form must reproduce the above copyright
016:         *    notice, this list of conditions and the following disclaimer in
017:         *    the documentation and/or other materials provided with the
018:         *    distribution.
019:         *
020:         * 3. The end-user documentation included with the redistribution,
021:         *    if any, must include the following acknowledgment:  
022:         *       "This product includes software developed by the
023:         *        Apache Software Foundation (http://www.apache.org/)."
024:         *    Alternately, this acknowledgment may appear in the software itself,
025:         *    if and wherever such third-party acknowledgments normally appear.
026:         *
027:         * 4. The names "Xerces" and "Apache Software Foundation" must
028:         *    not be used to endorse or promote products derived from this
029:         *    software without prior written permission. For written 
030:         *    permission, please contact apache@apache.org.
031:         *
032:         * 5. Products derived from this software may not be called "Apache",
033:         *    nor may "Apache" appear in their name, without prior written
034:         *    permission of the Apache Software Foundation.
035:         *
036:         * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
037:         * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
038:         * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
039:         * DISCLAIMED.  IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
040:         * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
041:         * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
042:         * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
043:         * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
044:         * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
045:         * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
046:         * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
047:         * SUCH DAMAGE.
048:         * ====================================================================
049:         *
050:         * This software consists of voluntary contributions made by many
051:         * individuals on behalf of the Apache Software Foundation and was
052:         * originally based on software copyright (c) 1999, International
053:         * Business Machines, Inc., http://www.apache.org.  For more
054:         * information on the Apache Software Foundation, please see
055:         * <http://www.apache.org/>.
056:         */
057:        package org.apache.html.dom;
058:
059:        import org.w3c.dom.*;
060:        import org.w3c.dom.html.*;
061:
062:        /**
063:         * @version $Revision: 1.4 $ $Date: 2001/01/30 23:58:02 $
064:         * @author <a href="mailto:arkin@openxml.org">Assaf Arkin</a>
065:         * @see org.w3c.dom.html.HTMLOptionElement
066:         * @see ElementImpl
067:         */
068:        public class HTMLOptionElementImpl extends HTMLElementImpl implements 
069:                HTMLOptionElement {
070:
071:            public boolean getDefaultSelected() {
072:                // ! NOT FULLY IMPLEMENTED !
073:                return getBinary("default-selected");
074:            }
075:
076:            public void setDefaultSelected(boolean defaultSelected) {
077:                // ! NOT FULLY IMPLEMENTED !
078:                setAttribute("default-selected", defaultSelected);
079:            }
080:
081:            public String getText() {
082:                Node child;
083:                String text;
084:
085:                // Find the Text nodes contained within this element and return their
086:                // concatenated value. Required to go around comments, entities, etc.
087:                child = getFirstChild();
088:                text = "";
089:                while (child != null) {
090:                    if (child instanceof  Text)
091:                        text = text + ((Text) child).getData();
092:                    child = child.getNextSibling();
093:                }
094:                return text;
095:            }
096:
097:            public void setText(String text) {
098:                Node child;
099:                Node next;
100:
101:                // Delete all the nodes and replace them with a single Text node.
102:                // This is the only approach that can handle comments and other nodes.
103:                child = getFirstChild();
104:                while (child != null) {
105:                    next = child.getNextSibling();
106:                    removeChild(child);
107:                    child = next;
108:                }
109:                insertBefore(getOwnerDocument().createTextNode(text),
110:                        getFirstChild());
111:            }
112:
113:            public int getIndex() {
114:                Node parent;
115:                NodeList options;
116:                int i;
117:
118:                // Locate the parent SELECT. Note that this OPTION might be inside a
119:                // OPTGROUP inside the SELECT. Or it might not have a parent SELECT.
120:                // Everything is possible. If no parent is found, return -1.
121:                parent = getParentNode();
122:                while (parent != null && !(parent instanceof  HTMLSelectElement))
123:                    parent = parent.getParentNode();
124:                if (parent != null) {
125:                    // Use getElementsByTagName() which creates a snapshot of all the
126:                    // OPTION elements under the SELECT. Access to the returned NodeList
127:                    // is very fast and the snapshot solves many synchronization problems.
128:                    options = ((HTMLElement) parent)
129:                            .getElementsByTagName("OPTION");
130:                    for (i = 0; i < options.getLength(); ++i)
131:                        if (options.item(i) == this )
132:                            return i;
133:                }
134:                return -1;
135:            }
136:
137:            public void setIndex(int index) {
138:                Node parent;
139:                NodeList options;
140:                Node item;
141:
142:                // Locate the parent SELECT. Note that this OPTION might be inside a
143:                // OPTGROUP inside the SELECT. Or it might not have a parent SELECT.
144:                // Everything is possible. If no parent is found, just return.
145:                parent = getParentNode();
146:                while (parent != null && !(parent instanceof  HTMLSelectElement))
147:                    parent = parent.getParentNode();
148:                if (parent != null) {
149:                    // Use getElementsByTagName() which creates a snapshot of all the
150:                    // OPTION elements under the SELECT. Access to the returned NodeList
151:                    // is very fast and the snapshot solves many synchronization problems.
152:                    // Make sure this OPTION is not replacing itself.
153:                    options = ((HTMLElement) parent)
154:                            .getElementsByTagName("OPTION");
155:                    if (options.item(index) != this ) {
156:                        // Remove this OPTION from its parent. Place this OPTION right
157:                        // before indexed OPTION underneath it's direct parent (might
158:                        // be an OPTGROUP).
159:                        getParentNode().removeChild(this );
160:                        item = options.item(index);
161:                        item.getParentNode().insertBefore(this , item);
162:                    }
163:                }
164:            }
165:
166:            public boolean getDisabled() {
167:                return getBinary("disabled");
168:            }
169:
170:            public void setDisabled(boolean disabled) {
171:                setAttribute("disabled", disabled);
172:            }
173:
174:            public String getLabel() {
175:                return capitalize(getAttribute("label"));
176:            }
177:
178:            public void setLabel(String label) {
179:                setAttribute("label", label);
180:            }
181:
182:            public boolean getSelected() {
183:                return getBinary("selected");
184:            }
185:
186:            public void setSelected(boolean selected) {
187:                setAttribute("selected", selected);
188:            }
189:
190:            public String getValue() {
191:                return getAttribute("value");
192:            }
193:
194:            public void setValue(String value) {
195:                setAttribute("value", value);
196:            }
197:
198:            /**
199:             * Constructor requires owner document.
200:             * 
201:             * @param owner The owner HTML document
202:             */
203:            public HTMLOptionElementImpl(HTMLDocumentImpl owner, String name) {
204:                super(owner, name);
205:            }
206:
207:        }
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