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16 package org.apache.myfaces.renderkit.html;
17
18 import org.apache.myfaces.renderkit.JSFAttr;
19 import org.apache.myfaces.renderkit.RendererUtils;
20
21 import org.apache.commons.logging.Log;
22 import org.apache.commons.logging.LogFactory;
23
24 import javax.faces.FacesException;
25 import javax.faces.component.UIComponent;
26 import javax.faces.component.UISelectBoolean;
27 import javax.faces.component.UISelectMany;
28 import javax.faces.component.html.HtmlSelectBooleanCheckbox;
29 import javax.faces.component.html.HtmlSelectManyCheckbox;
30 import javax.faces.context.FacesContext;
31 import javax.faces.context.ResponseWriter;
32 import javax.faces.convert.Converter;
33 import javax.faces.convert.ConverterException;
34 import javax.faces.model.SelectItem;
35 import java.io.IOException  ;
36 import java.util.Iterator ;
37 import java.util.Set ;
38
39
80 public class HtmlCheckboxRendererBase extends HtmlRenderer {
81 private static final Log log = LogFactory
82 .getLog(HtmlCheckboxRendererBase.class);
83
84 private static final String PAGE_DIRECTION = "pageDirection";
85
86 private static final String LINE_DIRECTION = "lineDirection";
87
88 private static final String EXTERNAL_TRUE_VALUE = "true";
89
90 public void encodeEnd(FacesContext facesContext, UIComponent uiComponent)
91 throws IOException {
92 RendererUtils.checkParamValidity(facesContext, uiComponent, null);
93 if (uiComponent instanceof UISelectBoolean) {
94 Boolean value = RendererUtils.getBooleanValue( uiComponent );
95 boolean isChecked = value != null ? value.booleanValue() : false;
96 renderCheckbox(facesContext, uiComponent, EXTERNAL_TRUE_VALUE,
97 null, isChecked, true);
98 } else if (uiComponent instanceof UISelectMany) {
99 renderCheckboxList(facesContext, (UISelectMany) uiComponent);
100 } else {
101 throw new IllegalArgumentException ("Unsupported component class "
102 + uiComponent.getClass().getName());
103 }
104 }
105
106 public void renderCheckboxList(FacesContext facesContext,
107 UISelectMany selectMany) throws IOException {
108
109 String layout = getLayout(selectMany);
110 boolean pageDirectionLayout = false; if (layout != null) {
112 if (layout.equals(PAGE_DIRECTION)) {
113 pageDirectionLayout = true;
114 } else if (layout.equals(LINE_DIRECTION)) {
115 pageDirectionLayout = false;
116 } else {
117 log.error("Wrong layout attribute for component "
118 + selectMany.getClientId(facesContext) + ": " + layout);
119 }
120 }
121
122 ResponseWriter writer = facesContext.getResponseWriter();
123
124 writer.startElement(HTML.TABLE_ELEM, selectMany);
125 HtmlRendererUtils.renderHTMLAttributes(writer, selectMany,
126 HTML.SELECT_TABLE_PASSTHROUGH_ATTRIBUTES);
127 HtmlRendererUtils.writeIdIfNecessary(writer, selectMany, facesContext);
128
129 if (!pageDirectionLayout)
130 writer.startElement(HTML.TR_ELEM, selectMany);
131
132 Converter converter;
133 try {
134 converter = RendererUtils.findUISelectManyConverter(facesContext,
135 selectMany);
136 } catch (FacesException e) {
137 log.error("Error finding Converter for component with id "
138 + selectMany.getClientId(facesContext));
139 converter = null;
140 }
141
142 Set lookupSet = RendererUtils.getSubmittedValuesAsSet(facesContext, selectMany, converter, selectMany);
143 boolean useSubmittedValues = lookupSet != null;
144
145 if (!useSubmittedValues) {
146 lookupSet = RendererUtils.getSelectedValuesAsSet(facesContext, selectMany, converter, selectMany);
147 }
148
149 for (Iterator it = RendererUtils.getSelectItemList(selectMany)
150 .iterator(); it.hasNext();) {
151 SelectItem selectItem = (SelectItem) it.next();
152 Object itemValue = selectItem.getValue();
154 String itemStrValue;
155 if (converter == null) {
156 itemStrValue = itemValue.toString();
157 } else {
158 itemStrValue = converter.getAsString(facesContext, selectMany,
159 itemValue);
160 }
161
162 writer.write("\t\t");
163 if (pageDirectionLayout)
164 writer.startElement(HTML.TR_ELEM, selectMany);
165 writer.startElement(HTML.TD_ELEM, selectMany);
166 writer.startElement(HTML.LABEL_ELEM, selectMany);
167
168 boolean checked = (useSubmittedValues && lookupSet
169 .contains(itemStrValue))
170 || (!useSubmittedValues && lookupSet.contains(itemValue));
171
172 renderCheckbox(facesContext, selectMany, itemStrValue, selectItem
173 .getLabel(), checked, false);
174 writer.endElement(HTML.LABEL_ELEM);
175 writer.endElement(HTML.TD_ELEM);
176 if (pageDirectionLayout)
177 writer.endElement(HTML.TR_ELEM);
178 }
179
180 if (!pageDirectionLayout)
181 writer.endElement(HTML.TR_ELEM);
182 writer.endElement(HTML.TABLE_ELEM);
183 }
184
185 protected String getLayout(UISelectMany selectMany) {
186 if (selectMany instanceof HtmlSelectManyCheckbox) {
187 return ((HtmlSelectManyCheckbox) selectMany).getLayout();
188 } else {
189 return (String ) selectMany.getAttributes().get(JSFAttr.LAYOUT_ATTR);
190 }
191 }
192
193 protected void renderCheckbox(FacesContext facesContext,
194 UIComponent uiComponent, String value, String label,
195 boolean checked, boolean renderId) throws IOException {
196 String clientId = uiComponent.getClientId(facesContext);
197
198 ResponseWriter writer = facesContext.getResponseWriter();
199
200 writer.startElement(HTML.INPUT_ELEM, uiComponent);
201 writer.writeAttribute(HTML.TYPE_ATTR, HTML.INPUT_TYPE_CHECKBOX, null);
202 writer.writeAttribute(HTML.NAME_ATTR, clientId, null);
203 if (renderId) {
204 HtmlRendererUtils.writeIdIfNecessary(writer, uiComponent, facesContext);
205 }
206
207 if (checked) {
208 writer.writeAttribute(HTML.CHECKED_ATTR, HTML.CHECKED_ATTR, null);
209 }
210
211 if ((value != null) && (value.length() > 0)) {
212 writer.writeAttribute(HTML.VALUE_ATTR, value, null);
213 }
214
215 HtmlRendererUtils.renderHTMLAttributes(writer, uiComponent,
216 HTML.INPUT_PASSTHROUGH_ATTRIBUTES_WITHOUT_DISABLED);
217 if (isDisabled(facesContext, uiComponent)) {
218 writer.writeAttribute(HTML.DISABLED_ATTR, Boolean.TRUE, null);
219 }
220 writer.writeText("", null); if ((label != null) && (label.length() > 0)) {
222 writer.write(HTML.NBSP_ENTITY);
223 writer.writeText(label, null);
224 }
225 }
226
227 protected boolean isDisabled(FacesContext facesContext,
228 UIComponent component) {
229 if (component instanceof HtmlSelectBooleanCheckbox) {
232 return ((HtmlSelectBooleanCheckbox) component).isDisabled();
233 } else if (component instanceof HtmlSelectManyCheckbox) {
234 return ((HtmlSelectManyCheckbox) component).isDisabled();
235 } else {
236 return RendererUtils.getBooleanAttribute(component,
237 HTML.DISABLED_ATTR, false);
238 }
239 }
240
241 public void decode(FacesContext facesContext, UIComponent component) {
242 RendererUtils.checkParamValidity(facesContext, component, null);
243 if (component instanceof UISelectBoolean) {
244 HtmlRendererUtils.decodeUISelectBoolean(facesContext, component);
245 } else if (component instanceof UISelectMany) {
246 HtmlRendererUtils.decodeUISelectMany(facesContext, component);
247 } else {
248 throw new IllegalArgumentException ("Unsupported component class "
249 + component.getClass().getName());
250 }
251 }
252
253 public Object getConvertedValue(FacesContext facesContext,
254 UIComponent component, Object submittedValue)
255 throws ConverterException {
256 RendererUtils.checkParamValidity(facesContext, component, null);
257 if (component instanceof UISelectBoolean) {
258 return submittedValue;
259 } else if (component instanceof UISelectMany) {
260 return RendererUtils.getConvertedUISelectManyValue(facesContext,
261 (UISelectMany) component, submittedValue);
262 } else {
263 throw new IllegalArgumentException ("Unsupported component class "
264 + component.getClass().getName());
265 }
266 }
267 } |
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