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16 package org.apache.myfaces.renderkit.html;
17
18 import org.apache.myfaces.config.MyfacesConfig;
19 import org.apache.myfaces.renderkit.JSFAttr;
20 import org.apache.myfaces.renderkit.RendererUtils;
21 import org.apache.myfaces.renderkit.html.util.DummyFormResponseWriter;
22 import org.apache.myfaces.renderkit.html.util.DummyFormUtils;
23 import org.apache.myfaces.renderkit.html.util.JavascriptUtils;
24
25 import javax.faces.component.UICommand;
26 import javax.faces.component.UIComponent;
27 import javax.faces.component.UIForm;
28 import javax.faces.component.ValueHolder;
29 import javax.faces.component.html.HtmlCommandButton;
30 import javax.faces.context.FacesContext;
31 import javax.faces.context.ResponseWriter;
32 import javax.faces.event.ActionEvent;
33 import java.io.IOException  ;
34 import java.util.Map ;
35
36
37
72 public class HtmlButtonRendererBase
73 extends HtmlRenderer
74 {
75 private static final String IMAGE_BUTTON_SUFFIX_X = ".x";
76 private static final String IMAGE_BUTTON_SUFFIX_Y = ".y";
77
78 public void decode(FacesContext facesContext, UIComponent uiComponent)
79 {
80 RendererUtils.checkParamValidity(facesContext, uiComponent, UICommand.class);
81
82 if (!isReset(uiComponent) && isSubmitted(facesContext, uiComponent))
84 {
85 uiComponent.queueEvent(new ActionEvent(uiComponent));
86 }
87 }
88
89 private static boolean isReset(UIComponent uiComponent)
90 {
91 return "reset".equalsIgnoreCase((String ) uiComponent.getAttributes().get(HTML.TYPE_ATTR));
92 }
93
94 private static boolean isSubmitted(FacesContext facesContext, UIComponent uiComponent)
95 {
96 String clientId = uiComponent.getClientId(facesContext);
97 Map paramMap = facesContext.getExternalContext().getRequestParameterMap();
98 return paramMap.containsKey(clientId) || paramMap.containsKey(clientId + IMAGE_BUTTON_SUFFIX_X) || paramMap.containsKey(clientId + IMAGE_BUTTON_SUFFIX_Y);
99 }
100
101 public void encodeEnd(FacesContext facesContext, UIComponent uiComponent)
102 throws IOException
103 {
104 RendererUtils.checkParamValidity(facesContext, uiComponent, UICommand.class);
105
106 String clientId = uiComponent.getClientId(facesContext);
107
108 ResponseWriter writer = facesContext.getResponseWriter();
109
110 writer.startElement(HTML.INPUT_ELEM, uiComponent);
111
112 writer.writeAttribute(HTML.ID_ATTR, clientId, null);
113 writer.writeAttribute(HTML.NAME_ATTR, clientId, null);
114
115 String image = getImage(uiComponent);
116
117 if (image != null)
118 {
119 writer.writeAttribute(HTML.TYPE_ATTR, HTML.INPUT_TYPE_IMAGE, null);
120 writer.writeAttribute(HTML.SRC_ATTR, image, JSFAttr.IMAGE_ATTR);
121 }
122 else
123 {
124 String type = getType(uiComponent);
125
126 if (type == null)
127 {
128 type = HTML.INPUT_TYPE_SUBMIT;
129 }
130 writer.writeAttribute(HTML.TYPE_ATTR, type, JSFAttr.TYPE_ATTR);
131 Object value = getValue(uiComponent);
132 if (value != null)
133 {
134 writer.writeAttribute(HTML.VALUE_ATTR, value, null);
135 }
136 }
137 if (JavascriptUtils.isJavascriptAllowed(facesContext.getExternalContext()))
138 {
139 StringBuffer onClick = buildOnClick(uiComponent, facesContext, writer);
140 writer.writeAttribute(HTML.ONCLICK_ATTR, onClick.toString(), null);
141 HtmlRendererUtils.renderHTMLAttributes(writer, uiComponent,
142 HTML.BUTTON_PASSTHROUGH_ATTRIBUTES_WITHOUT_DISABLED_AND_ONCLICK);
143 }
144 else
145 {
146 HtmlRendererUtils.renderHTMLAttributes(writer, uiComponent,
147 HTML.BUTTON_PASSTHROUGH_ATTRIBUTES_WITHOUT_DISABLED);
148 }
149
150 if (isDisabled(facesContext, uiComponent))
151 {
152 writer.writeAttribute(HTML.DISABLED_ATTR, Boolean.TRUE, null);
153 }
154
155 writer.endElement(HTML.INPUT_ELEM);
156 }
157
158
159 protected StringBuffer buildOnClick(UIComponent uiComponent, FacesContext facesContext, ResponseWriter writer)
160 throws IOException
161 {
162 UIComponent parent = uiComponent.getParent();
164 while (parent != null && !(parent instanceof UIForm))
165 {
166 parent = parent.getParent();
167 }
168
169 UIForm nestingForm = null;
170 String formName;
171 DummyFormResponseWriter dummyFormResponseWriter;
172 if (parent != null)
173 {
174 nestingForm = (UIForm)parent;
176 formName = nestingForm.getClientId(facesContext);
177 dummyFormResponseWriter = null;
178 }
179 else
180 {
181 formName = DummyFormUtils.DUMMY_FORM_NAME;
183 dummyFormResponseWriter = DummyFormUtils.getDummyFormResponseWriter(facesContext);
184 dummyFormResponseWriter.setWriteDummyForm(true);
185 }
186 StringBuffer onClick = new StringBuffer ();
187 String commandOnClick = (String )uiComponent.getAttributes().get(HTML.ONCLICK_ATTR);
188
189 if (commandOnClick != null)
190 {
191 onClick.append(commandOnClick);
192 onClick.append(';');
193 }
194
195 onClick.append(HtmlRendererUtils.getClearHiddenCommandFormParamsFunctionName(formName)).append("();");
197
198 if (MyfacesConfig.getCurrentInstance(facesContext.getExternalContext()).isAutoScroll())
199 {
200 JavascriptUtils.appendAutoScrollAssignment(onClick, formName);
201 }
202
203 String hiddenFieldName = HtmlRendererUtils.getHiddenCommandLinkFieldName(formName);
205 if (nestingForm != null)
206 {
207 HtmlFormRendererBase.addHiddenCommandParameter(nestingForm, hiddenFieldName);
208 }
209 else
210 {
211 dummyFormResponseWriter.addDummyFormParameter(hiddenFieldName);
212 }
213
214 return onClick;
215 }
216
217
218
219 protected boolean isDisabled(FacesContext facesContext, UIComponent uiComponent)
220 {
221 if (uiComponent instanceof HtmlCommandButton)
223 {
224 return ((HtmlCommandButton)uiComponent).isDisabled();
225 }
226 else
227 {
228 return RendererUtils.getBooleanAttribute(uiComponent, HTML.DISABLED_ATTR, false);
229 }
230 }
231
232
233 private String getImage(UIComponent uiComponent)
234 {
235 if (uiComponent instanceof HtmlCommandButton)
236 {
237 return ((HtmlCommandButton)uiComponent).getImage();
238 }
239 return (String )uiComponent.getAttributes().get(JSFAttr.IMAGE_ATTR);
240 }
241
242 private String getType(UIComponent uiComponent)
243 {
244 if (uiComponent instanceof HtmlCommandButton)
245 {
246 return ((HtmlCommandButton)uiComponent).getType();
247 }
248 return (String )uiComponent.getAttributes().get(JSFAttr.TYPE_ATTR);
249 }
250
251 private Object getValue(UIComponent uiComponent)
252 {
253 if (uiComponent instanceof ValueHolder)
254 {
255 return ((ValueHolder)uiComponent).getValue();
256 }
257 return uiComponent.getAttributes().get(JSFAttr.VALUE_ATTR);
258 }
259 }
260 |
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