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16 package org.apache.myfaces.custom.popup;
17
18 import org.apache.myfaces.component.html.util.AddResource;
19 import org.apache.myfaces.renderkit.RendererUtils;
20 import org.apache.myfaces.renderkit.html.HtmlRenderer;
21 import org.apache.myfaces.renderkit.html.HTML;
22
23 import javax.faces.component.UIComponent;
24 import javax.faces.context.FacesContext;
25 import javax.faces.context.ResponseWriter;
26 import java.io.IOException  ;
27 import java.util.List ;
28
29
74 public class HtmlPopupRenderer
75 extends HtmlRenderer
76 {
77 public static final String RENDERER_TYPE = "org.apache.myfaces.Popup";
78
80 public boolean getRendersChildren()
81 {
82 return true;
83 }
84
85 public void encodeBegin(FacesContext facesContext, UIComponent uiComponent) throws IOException
86 {
87 }
88
89 public void encodeChildren(FacesContext facesContext, UIComponent component) throws IOException
90 {
91
92 }
93
94
95 public void encodeEnd(FacesContext facesContext, UIComponent uiComponent) throws IOException
96 {
97 RendererUtils.checkParamValidity(facesContext, uiComponent, HtmlPopup.class);
98
99 HtmlPopup popup = (HtmlPopup) uiComponent;
100
101 UIComponent popupFacet = popup.getPopup();
102
103 String popupId = writePopupScript(
104 facesContext, popup.getClientId(facesContext),
105 popup.getDisplayAtDistanceX(),popup.getDisplayAtDistanceY());
106
107
109 writeMouseOverAttribs(popupId, uiComponent.getChildren(),
110 popup.getClosePopupOnExitingElement()==null ||
111 popup.getClosePopupOnExitingElement().booleanValue());
112
113 RendererUtils.renderChildren(facesContext, uiComponent);
114
115 ResponseWriter writer = facesContext.getResponseWriter();
116
117 writer.startElement(HTML.DIV_ELEM, popup);
118 writer.writeAttribute(HTML.STYLE_ATTR,(popup.getStyle()!=null?(popup.getStyle()+
119 (popup.getStyle().trim().endsWith(";")?"":";")):"")+
120 "position:absolute;display:none;",null);
121 if(popup.getStyleClass()!=null)
122 {
123 writer.writeAttribute(HTML.CLASS_ATTR,popup.getStyleClass(),null);
124 }
125 writer.writeAttribute(HTML.ID_ATTR, popup.getClientId(facesContext),null);
126 writer.writeAttribute(HTML.ONMOUSEOVER_ATTR, new String (popupId+".redisplay();"),null);
127
128 Boolean closeExitPopup = popup.getClosePopupOnExitingPopup();
129
130 if(closeExitPopup==null || closeExitPopup.booleanValue())
131 writer.writeAttribute(HTML.ONMOUSEOUT_ATTR, new String (popupId+".hide();"),null);
132
133 RendererUtils.renderChildren(facesContext, popupFacet);
134 writer.endElement(HTML.DIV_ELEM);
135 }
136
137 private void writeMouseOverAttribs(String popupId, List children, boolean renderMouseOut)
138 {
139 for (int i = 0; i < children.size(); i++)
140 {
141 UIComponent uiComponent = (UIComponent) children.get(i);
142
143 callMethod(uiComponent,"onmouseover",new String (popupId+".display(event);"));
144
145 if(renderMouseOut)
146 callMethod(uiComponent,"onmouseout",new String (popupId+".hide(event);"));
147
148 writeMouseOverAttribs(popupId, uiComponent.getChildren(),renderMouseOut);
149 }
150 }
151
152 private String writePopupScript(FacesContext context, String clientId,
153 Integer displayAtDistanceX, Integer displayAtDistanceY)
154 throws IOException
155 {
156 AddResource.addJavaScriptToHeader(
157 HtmlPopupRenderer.class, "JSPopup.js", false, context);
158
159 String popupId = (clientId+"Popup").replaceAll(":","_");
160
161 while(popupId.startsWith("_"))
162 {
163 popupId = popupId.substring(1);
164 }
165
166 ResponseWriter writer = context.getResponseWriter();
167 writer.startElement(HTML.SCRIPT_ELEM,null);
168 writer.writeAttribute(HTML.SCRIPT_TYPE_ATTR,HTML.SCRIPT_TYPE_TEXT_JAVASCRIPT,null);
169 writer.writeText("var "+popupId+"=new orgApacheMyfacesPopup('"+clientId+"',"+
170 (displayAtDistanceX==null?-5:displayAtDistanceX.intValue())+","+
171 (displayAtDistanceY==null?-5:displayAtDistanceY.intValue())+");",null);
172 writer.endElement(HTML.SCRIPT_ELEM);
173
174 return popupId;
175 }
176
177 private void writeMouseOverAndOutAttribs(String popupId, List children)
178 {
179 for (int i = 0; i < children.size(); i++)
180 {
181 UIComponent uiComponent = (UIComponent) children.get(i);
182
183 callMethod(uiComponent,"onmouseover",new String (popupId+".redisplay();"));
184 callMethod(uiComponent,"onmouseout",new String (popupId+".hide();"));
185
186 writeMouseOverAndOutAttribs(popupId, uiComponent.getChildren());
187 }
188 }
189
190 private void callMethod(UIComponent uiComponent, String propName, String value)
191 {
192 Object oldValue = uiComponent.getAttributes().get(propName);
193
194 String oldValueStr = "";
195
196 String genCommentary = "/* generated code */";
197
198 if(oldValue != null)
199 {
200 oldValueStr = oldValue.toString().trim();
201
202 int genCommentaryIndex;
203
204 if((genCommentaryIndex=oldValueStr.indexOf(genCommentary))!=-1)
206 {
207 oldValueStr = oldValueStr.substring(0,genCommentaryIndex);
208 }
209
210 if(oldValueStr.length()>0 && !oldValueStr.endsWith(";"))
211 oldValueStr +=";";
212 }
213
214 value = oldValueStr + genCommentary+value;
215
216 uiComponent.getAttributes().put(propName, value);
217 }
218 }
219 |
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