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16 package org.apache.cocoon.faces.taglib;
17
18 import org.apache.cocoon.environment.ObjectModelHelper;
19 import org.apache.cocoon.environment.Response;
20 import org.apache.cocoon.i18n.I18nUtils;
21
22 import org.apache.cocoon.faces.FacesUtils;
23 import org.xml.sax.Attributes  ;
24 import org.xml.sax.SAXException ;
25
26 import javax.faces.application.StateManager;
27 import javax.faces.component.UIComponent;
28 import javax.faces.component.UIViewRoot;
29 import javax.faces.context.ResponseWriter;
30 import javax.faces.el.ValueBinding;
31 import java.io.IOException ;
32 import java.util.Locale ;
33
34
37 public class ViewTag extends UIComponentTag {
38
39 protected String locale;
40
41 public void setLocale(String locale) {
42 this.locale = locale;
43 }
44
45 public int doStartTag(String namespaceURI, String localName, String qName, Attributes atts)
46 throws SAXException {
47 int rc = super.doStartTag(namespaceURI, localName, qName, atts);
48
49 Response response = ObjectModelHelper.getResponse(objectModel);
50 response.setLocale(getFacesContext().getViewRoot().getLocale());
51
52 ResponseWriter writer = getFacesContext().getResponseWriter();
53 try {
54 writer.startDocument();
55 } catch (IOException e) {
56 throw new SAXException (e);
57 }
58
59 return rc;
60 }
61
62 public int doEndTag(String namespaceURI, String localName, String qName)
63 throws SAXException {
64 int rc = super.doEndTag(namespaceURI, localName, qName);
65
66 StateManager stateManager = getApplication().getStateManager();
67 StateManager.SerializedView view;
68 try {
69 view = stateManager.saveSerializedView(getFacesContext());
70 } catch (IllegalStateException e) {
71 throw new SAXException (e);
72 } catch (Exception e) {
73 throw new SAXException ("Could not save faces view", e);
74 }
75
76 try {
77 if (view != null) {
79 stateManager.writeState(getFacesContext(), view);
80 }
81 } catch (IOException e) {
82 throw new SAXException ("Could not save faces view", e);
83 }
84
85 ResponseWriter writer = getFacesContext().getResponseWriter();
86 try {
87 writer.endDocument();
88 } catch (IOException e) {
89 throw new SAXException ("Exception in endDocument", e);
90 }
91
92 return rc;
93 }
94
95 public String getComponentType() {
96 throw new IllegalStateException ();
97 }
98
99 public String getRendererType() {
100 return null;
101 }
102
103 protected void setProperties(UIComponent component) {
104 super.setProperties(component);
105
106 if (this.locale != null) {
107 Object localeVal = this.locale;
108 if (FacesUtils.isExpression(this.locale)) {
109 ValueBinding vb = createValueBinding(this.locale);
110 component.setValueBinding("locale", vb);
111 localeVal = vb.getValue(getFacesContext());
112 }
113
114 Locale value = null;
115 if (localeVal instanceof Locale ) {
116 value = (Locale ) localeVal;
117 } else if (localeVal instanceof String ) {
118 value = I18nUtils.parseLocale((String ) localeVal);
119 }
120 ((UIViewRoot) component).setLocale(value);
121 }
122 }
123
124 public void recycle() {
125 super.recycle();
126 this.locale = null;
127 }
128 }
129 |
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