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1
5 package org.exoplatform.portlet.faces.application;
6
7 import java.io.IOException  ;
8 import java.util.Locale ;
9 import javax.faces.FacesException;
10 import javax.faces.application.StateManager;
11 import javax.faces.application.ViewHandler;
12 import javax.faces.component.UIViewRoot;
13 import javax.faces.context.FacesContext;
14 import org.apache.commons.logging.Log;
15 import org.exoplatform.services.log.LogUtil;
16 import org.exoplatform.portlet.faces.component.UIExoViewRoot;
17
23 public class FacesPortletViewHandler extends ViewHandler {
24 protected static Log log_ = LogUtil.getLog("org.exoplatform.portlet.faces.faces" );
25
26 protected StateManager stateManager_ ;
27
28 public FacesPortletViewHandler(StateManager stateManager) {
29 stateManager_ = stateManager ;
30 }
31
32 public void renderView(FacesContext context, UIViewRoot viewToRender) throws IOException , FacesException {
33 if(null == context || null == viewToRender)
34 throw new NullPointerException ("Faces context cannot be null");
35 UIExoViewRoot exoViewToRender = (UIExoViewRoot) viewToRender ;
36 String viewId = exoViewToRender.getViewId();
37 if (exoViewToRender.isComponentView()) {
38 exoViewToRender.renderChildren(context) ;
40 } else {
41 context.getExternalContext().dispatch(viewId);
43 }
44 }
47
48 public StateManager getStateManager() { return stateManager_; }
49
50 public UIViewRoot restoreView(FacesContext context, String viewId) {
51 if(context == null)
52 throw new NullPointerException ("faces context cannot be null");
53 PortletFacesData data = PortletFacesData.getPortletFacesData(context) ;
54 UIViewRoot viewRoot = data.restoreView(context, viewId) ;
55 return viewRoot;
57 }
58
59 public UIViewRoot createView(FacesContext context, String viewId) {
60 UIViewRoot result = null ;
61 if (result == null) {
62 result = new UIExoViewRoot(viewId);
63 Locale locale = null;
64 if(context.getViewRoot() != null) locale = context.getViewRoot().getLocale();
65 if(locale == null) {
66 locale = calculateLocale(context);
67 }
68 result.setLocale(locale);
69 }
70 result.setRenderKitId(calculateRenderKitId(context)) ;
71 PortletFacesData data = PortletFacesData.getPortletFacesData(context) ;
72 data.saveView(context, result) ;
73 return result;
74 }
75
76 public String calculateRenderKitId(FacesContext context) {
77 if(context == null) throw new NullPointerException ("Faces Context is null");
78 String result = context.getApplication().getDefaultRenderKitId() ;
79 if(null == result ) result = "HTML_BASIC";
80 return result;
81 }
82
83 public Locale calculateLocale(FacesContext context) {
84 return context.getExternalContext().getRequestLocale() ;
85 }
86
87 public void writeState(FacesContext context) throws IOException {
88
93 }
94
95 public String getViewIdPath(FacesContext context, String viewId) {
96 if(context == null || viewId == null)
97 throw new NullPointerException ("faces context or viewId cannot be bull");
98 if(viewId.charAt(0) != '/') {
99 throw new IllegalArgumentException ("expect viewId start with /");
100 }
101 return viewId;
102 }
103
104 public String getResourceURL(FacesContext context, String path) {
105 if(path.startsWith("/"))
106 return context.getExternalContext().getRequestContextPath() + path;
107 return path;
108 }
109
110 public String getActionURL(FacesContext context, String viewId) {
111 return viewId ;
112 }
113 } |
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