Source Code Cross Referenced for PassThruAttributeWriter.java in  » J2EE » ICEfaces-1.6.1 » com » icesoft » faces » renderkit » dom_html_basic » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » J2EE » ICEfaces 1.6.1 » com.icesoft.faces.renderkit.dom_html_basic 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        /*
002:         * Version: MPL 1.1/GPL 2.0/LGPL 2.1
003:         *
004:         * "The contents of this file are subject to the Mozilla Public License
005:         * Version 1.1 (the "License"); you may not use this file except in
006:         * compliance with the License. You may obtain a copy of the License at
007:         * http://www.mozilla.org/MPL/
008:         *
009:         * Software distributed under the License is distributed on an "AS IS"
010:         * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the
011:         * License for the specific language governing rights and limitations under
012:         * the License.
013:         *
014:         * The Original Code is ICEfaces 1.5 open source software code, released
015:         * November 5, 2006. The Initial Developer of the Original Code is ICEsoft
016:         * Technologies Canada, Corp. Portions created by ICEsoft are Copyright (C)
017:         * 2004-2006 ICEsoft Technologies Canada, Corp. All Rights Reserved.
018:         *
019:         * Contributor(s): _____________________.
020:         *
021:         * Alternatively, the contents of this file may be used under the terms of
022:         * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"
023:         * License), in which case the provisions of the LGPL License are
024:         * applicable instead of those above. If you wish to allow use of your
025:         * version of this file only under the terms of the LGPL License and not to
026:         * allow others to use your version of this file under the MPL, indicate
027:         * your decision by deleting the provisions above and replace them with
028:         * the notice and other provisions required by the LGPL License. If you do
029:         * not delete the provisions above, a recipient may use your version of
030:         * this file under either the MPL or the LGPL License."
031:         *
032:         */
033:
034:        package com.icesoft.faces.renderkit.dom_html_basic;
035:
036:        import javax.faces.FacesException;
037:        import javax.faces.component.UIComponent;
038:        import javax.faces.context.ResponseWriter;
039:        import java.io.IOException;
040:        import java.util.ArrayList;
041:        import java.util.Arrays;
042:        import java.util.Iterator;
043:        import java.util.List;
044:        import java.util.Map;
045:
046:        /**
047:         * This class is used by ReponseWriter based renderers to render html
048:         * pass thru attributes.
049:         *
050:         * @author gmccleary
051:         */
052:        public class PassThruAttributeWriter {
053:
054:            private static List passThruAttributeNames = new ArrayList();
055:            private static List booleanPassThruAttributeNames = new ArrayList();
056:
057:            static {
058:                passThruAttributeNames.add("accept");
059:                passThruAttributeNames.add("accesskey");
060:                passThruAttributeNames.add("alt");
061:                passThruAttributeNames.add("bgcolor");
062:                passThruAttributeNames.add("border");
063:                passThruAttributeNames.add("cellpadding");
064:                passThruAttributeNames.add("cellspacing");
065:                passThruAttributeNames.add("charset");
066:                passThruAttributeNames.add("cols");
067:                passThruAttributeNames.add("coords");
068:                passThruAttributeNames.add("dir");
069:                passThruAttributeNames.add("enctype");
070:                passThruAttributeNames.add("frame");
071:                passThruAttributeNames.add("height");
072:                passThruAttributeNames.add("hreflang");
073:                passThruAttributeNames.add("lang");
074:                passThruAttributeNames.add("longdesc");
075:                passThruAttributeNames.add("maxlength");
076:                passThruAttributeNames.add("onblur");
077:                passThruAttributeNames.add("onchange");
078:                passThruAttributeNames.add("onclick");
079:                passThruAttributeNames.add("ondblclick");
080:                passThruAttributeNames.add("onfocus");
081:                passThruAttributeNames.add("onkeydown");
082:                passThruAttributeNames.add("onkeypress");
083:                passThruAttributeNames.add("onkeyup");
084:                passThruAttributeNames.add("onload");
085:                passThruAttributeNames.add("onmousedown");
086:                passThruAttributeNames.add("onmousemove");
087:                passThruAttributeNames.add("onmouseout");
088:                passThruAttributeNames.add("onmouseover");
089:                passThruAttributeNames.add("onmouseup");
090:                passThruAttributeNames.add("onreset");
091:                passThruAttributeNames.add("onselect");
092:                passThruAttributeNames.add("onsubmit");
093:                passThruAttributeNames.add("onunload");
094:                passThruAttributeNames.add("rel");
095:                passThruAttributeNames.add("rev");
096:                passThruAttributeNames.add("rows");
097:                passThruAttributeNames.add("rules");
098:                passThruAttributeNames.add("shape");
099:                passThruAttributeNames.add("size");
100:                passThruAttributeNames.add("style");
101:                passThruAttributeNames.add("summary");
102:                passThruAttributeNames.add("tabindex");
103:                passThruAttributeNames.add("target");
104:                passThruAttributeNames.add("title");
105:                passThruAttributeNames.add("usemap");
106:                passThruAttributeNames.add("width");
107:                passThruAttributeNames.add("width");
108:                passThruAttributeNames.add("onclickeffect");
109:                passThruAttributeNames.add("ondblclickeffect");
110:                passThruAttributeNames.add("onmousedowneffect");
111:                passThruAttributeNames.add("onmouseupeffect");
112:                passThruAttributeNames.add("onmousemoveeffect");
113:                passThruAttributeNames.add("onmouseovereffect");
114:                passThruAttributeNames.add("onmouseouteffect");
115:                passThruAttributeNames.add("onchangeeffect");
116:                passThruAttributeNames.add("onreseteffect");
117:                passThruAttributeNames.add("onsubmiteffect");
118:                passThruAttributeNames.add("onkeypresseffect");
119:                passThruAttributeNames.add("onkeydowneffect");
120:                passThruAttributeNames.add("onkeyupeffect");
121:                passThruAttributeNames.add("autocomplete");
122:
123:                booleanPassThruAttributeNames.add("disabled");
124:                booleanPassThruAttributeNames.add("readonly");
125:                booleanPassThruAttributeNames.add("ismap");
126:            }
127:
128:            /**
129:             * Write pass thru attributes associated with the UIComponent parameter. The
130:             * excludedAttributes argument is a String array of the names of attributes
131:             * to omit. Do not render attributes contained in the excludedAttributes
132:             * argument.
133:             *
134:             * @param writer
135:             * @param uiComponent
136:             * @param excludedAttributes attributes to exclude
137:             * @throws IOException
138:             */
139:            public static void renderAttributes(ResponseWriter writer,
140:                    UIComponent uiComponent, String[] excludedAttributes)
141:                    throws IOException {
142:                renderNonBooleanAttributes(writer, uiComponent,
143:                        excludedAttributes);
144:                renderBooleanAttributes(writer, uiComponent, excludedAttributes);
145:            }
146:
147:            /**
148:             * ToDo: Render the icefaces onfocus handler to the root element. This
149:             * should be restricted to input type elements and commandlinks.
150:             *
151:             * @param writer
152:             * @throws IOException 
153:             */
154:            public static void renderOnFocus(ResponseWriter writer)
155:                    throws IOException {
156:                writer.writeAttribute("onfocus", "setFocus(this.id);",
157:                        "onfocus");
158:            }
159:
160:            /**
161:             * ToDo: Render the icefaces onblur handler to the root element. This should
162:             * be restricted to input type elements and commandlinks.
163:             *
164:             * @param writer
165:             * @throws IOException 
166:             */
167:            public static void renderOnBlur(ResponseWriter writer)
168:                    throws IOException {
169:                writer.writeAttribute("onfocus", "setFocus('');", "onfocus");
170:            }
171:
172:            private static void renderBooleanAttributes(ResponseWriter writer,
173:                    UIComponent uiComponent, String[] excludedAttributes)
174:                    throws IOException {
175:
176:                if (writer == null) {
177:                    throw new FacesException("Null pointer exception");
178:                }
179:                if (uiComponent == null) {
180:                    throw new FacesException("Null pointer exception");
181:                }
182:
183:                List excludedAttributesList = null;
184:                if (excludedAttributes != null && excludedAttributes.length > 0)
185:                    excludedAttributesList = Arrays.asList(excludedAttributes);
186:
187:                Object nextPassThruAttributeName;
188:                Object nextPassThruAttributeValue = null;
189:                Iterator passThruNameIterator = booleanPassThruAttributeNames
190:                        .iterator();
191:                boolean primitiveAttributeValue;
192:
193:                while (passThruNameIterator.hasNext()) {
194:                    nextPassThruAttributeName = (passThruNameIterator.next());
195:                    if (excludedAttributesList != null) {
196:                        if (excludedAttributesList
197:                                .contains(nextPassThruAttributeName))
198:                            continue;
199:                    }
200:                    nextPassThruAttributeValue = uiComponent.getAttributes()
201:                            .get(nextPassThruAttributeName);
202:                    if (nextPassThruAttributeValue != null) {
203:                        if (nextPassThruAttributeValue instanceof  Boolean) {
204:                            primitiveAttributeValue = ((Boolean) nextPassThruAttributeValue)
205:                                    .booleanValue();
206:                        } else {
207:                            if (!(nextPassThruAttributeValue instanceof  String)) {
208:                                nextPassThruAttributeValue = nextPassThruAttributeValue
209:                                        .toString();
210:                            }
211:                            primitiveAttributeValue = (new Boolean(
212:                                    (String) nextPassThruAttributeValue))
213:                                    .booleanValue();
214:                        }
215:                        if (primitiveAttributeValue) {
216:                            writer.writeAttribute(nextPassThruAttributeName
217:                                    .toString(), nextPassThruAttributeValue,
218:                                    nextPassThruAttributeName.toString());
219:                        }
220:
221:                    }
222:                }
223:            }
224:
225:            private static void renderNonBooleanAttributes(
226:                    ResponseWriter writer, UIComponent uiComponent,
227:                    String[] excludedAttributes)
228:
229:            throws IOException {
230:                if (writer == null) {
231:                    throw new FacesException("Null pointer exception");
232:                }
233:
234:                if (uiComponent == null) {
235:                    throw new FacesException("Component instance is null");
236:                }
237:
238:                List excludedAttributesList = null;
239:                if (excludedAttributes != null && excludedAttributes.length > 0)
240:                    excludedAttributesList = Arrays.asList(excludedAttributes);
241:
242:                Object nextPassThruAttributeName = null;
243:                Object nextPassThruAttributeValue = null;
244:                Iterator passThruNameIterator = passThruAttributeNames
245:                        .iterator();
246:                while (passThruNameIterator.hasNext()) {
247:                    nextPassThruAttributeName = (passThruNameIterator.next());
248:                    if (excludedAttributesList != null) {
249:                        if (excludedAttributesList
250:                                .contains(nextPassThruAttributeName))
251:                            continue;
252:                    }
253:                    nextPassThruAttributeValue = uiComponent.getAttributes()
254:                            .get(nextPassThruAttributeName);
255:                    // Only render non-null attributes.
256:                    // Some components have attribute values
257:                    // set to the Wrapper classes' minimum value - don't render 
258:                    // an attribute with this sentinel value.
259:                    if (nextPassThruAttributeValue != null
260:                            && !attributeValueIsSentinel(nextPassThruAttributeValue)) {
261:                        writer.writeAttribute(nextPassThruAttributeName
262:                                .toString(), nextPassThruAttributeValue,
263:                                nextPassThruAttributeValue.toString());
264:                    }
265:                }
266:            }
267:
268:            /**
269:             * Determine whether any of the attributes defined for the UIComponent
270:             * instance are pass thru attributes.
271:             *
272:             * @param uiComponent
273:             * @return true if the UIComponent parameter has one or more attributes
274:             *         defined that are pass thru attributes
275:             */
276:            public static boolean passThruAttributeExists(
277:                    UIComponent uiComponent) {
278:                if (uiComponent == null) {
279:                    return false;
280:                }
281:                Map componentAttributes = uiComponent.getAttributes();
282:                if (componentAttributes.size() <= 0) {
283:                    return false;
284:                }
285:                if (componentAttributesIncludePassThruAttribute(
286:                        componentAttributes, passThruAttributeNames)) {
287:                    return true;
288:                }
289:                if (componentAttributesIncludePassThruAttribute(
290:                        componentAttributes, booleanPassThruAttributeNames)) {
291:                    return true;
292:                }
293:                return false;
294:            }
295:
296:            private static boolean attributeValueIsSentinel(Object value) {
297:                if (value == null) {
298:                    return false;
299:                }
300:                if (value instanceof  Boolean) {
301:                    if (((Boolean) value).booleanValue() == false) {
302:                        return true;
303:                    }
304:                    return false;
305:                }
306:                if (value instanceof  Number) {
307:                    if (value instanceof  Integer) {
308:                        if (((Integer) value).intValue() == Integer.MIN_VALUE) {
309:                            return true;
310:                        }
311:                        return false;
312:                    }
313:                    if (value instanceof  Long) {
314:                        if (((Long) value).longValue() == Long.MIN_VALUE) {
315:                            return true;
316:                        }
317:                        return false;
318:                    }
319:                    if (value instanceof  Short) {
320:                        if (((Short) value).shortValue() == Short.MIN_VALUE) {
321:                            return true;
322:                        }
323:                        return false;
324:                    }
325:                    if (value instanceof  Float) {
326:                        if (((Float) value).floatValue() == Float.MIN_VALUE) {
327:                            return true;
328:                        }
329:                        return false;
330:                    }
331:                    if (value instanceof  Double) {
332:                        if (((Double) value).doubleValue() == Double.MIN_VALUE) {
333:                            return true;
334:                        }
335:                        return false;
336:                    }
337:                    if (value instanceof  Byte) {
338:                        if (((Byte) value).byteValue() == Byte.MIN_VALUE) {
339:                            return true;
340:                        }
341:                        return false;
342:                    }
343:                }
344:                if (value instanceof  Character) {
345:                    if (((Character) value).charValue() == Character.MIN_VALUE) {
346:                        return true;
347:                    }
348:                    return false;
349:                }
350:                return false;
351:            }
352:
353:            private static boolean componentAttributesIncludePassThruAttribute(
354:                    Map componentAttributes, List passThru) {
355:                Object componentAttributeKey;
356:                Object componentAttributeValue;
357:                Iterator attributeKeys = componentAttributes.keySet()
358:                        .iterator();
359:                while (attributeKeys.hasNext()) {
360:                    componentAttributeKey = attributeKeys.next();
361:                    if (passThru.contains(componentAttributeKey)) {
362:                        componentAttributeValue = componentAttributes
363:                                .get(componentAttributeKey);
364:                        if ((componentAttributeValue != null)
365:                                && (componentAttributeValue != "")) {
366:                            return true;
367:                        }
368:                    }
369:                }
370:                return false;
371:            }
372:
373:            static final List getpassThruAttributeNames() {
374:                return passThruAttributeNames;
375:            }
376:        }
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