001 package edu.nrao.sss.webapp.faces.tag;
002
003 import javax.faces.webapp.UIComponentTag;
004 import javax.faces.component.UIComponent;
005 import javax.faces.component.UIInput;
006 import javax.faces.context.FacesContext;
007 import javax.faces.application.Application;
008 import javax.faces.el.ValueBinding;
009 import javax.faces.el.MethodBinding;
010 import javax.faces.el.ReferenceSyntaxException;
011 import javax.faces.event.ValueChangeEvent;
012
013 import org.apache.log4j.Logger;
014
015 import edu.nrao.sss.webapp.faces.component.LatitudeUIComponent;
016
017 public class LatitudeTag extends UIComponentTag
018 {
019 private static final Logger log = Logger.getLogger(LatitudeTag.class);
020
021 public String getComponentType() { return "edu.nrao.sss.Latitude"; }
022 public String getRendererType() { return null; }
023
024 private String value = null,
025 valueChangeListener = null,
026 enabled = null,
027 style = null,
028 styleClass = null;
029
030 @SuppressWarnings("unchecked")
031 protected void setProperties(UIComponent component)
032 {
033 super.setProperties(component);
034
035 FacesContext context = FacesContext.getCurrentInstance();
036 Application app = context.getApplication();
037
038 log.debug("Value is: " + value);
039 if (value != null)
040 {
041 if (isValueReference(value))
042 {
043 ValueBinding vb = app.createValueBinding(value);
044
045 component.setValueBinding("value", vb);
046 }
047
048 else
049 {
050 throw new ReferenceSyntaxException(value + " is not a valid EL expression");
051 }
052 }
053
054 if (valueChangeListener != null)
055 {
056 Class[] params = new Class[1];
057 params[0] = ValueChangeEvent.class;
058
059 MethodBinding mb = app.createMethodBinding(valueChangeListener, params);
060
061 ((UIInput)component).setValueChangeListener(mb);
062 }
063
064 if (enabled != null)
065 {
066 if (isValueReference(enabled))
067 {
068 ValueBinding vb = app.createValueBinding(enabled);
069
070 component.setValueBinding("enabled", vb);
071 }
072
073 else
074 {
075 ((LatitudeUIComponent)component).setEnabled(isTrue(enabled));
076 }
077 }
078
079 if (style != null)
080 {
081 if (isValueReference(style))
082 {
083 ValueBinding vb = app.createValueBinding(style);
084
085 component.setValueBinding("style", vb);
086 }
087
088 else
089 {
090 component.getAttributes().put("style", style);
091 }
092 }
093
094 if (styleClass != null)
095 {
096 if (isValueReference(styleClass))
097 {
098 ValueBinding vb = app.createValueBinding(styleClass);
099
100 component.setValueBinding("styleClass", vb);
101 }
102
103 else
104 {
105 component.getAttributes().put("styleClass", styleClass);
106 }
107 }
108 }
109
110 public void release()
111 {
112 super.release();
113 value = null;
114 enabled = null;
115 style = null;
116 styleClass = null;
117 }
118
119 public void setValue(String v)
120 {
121 this.value = v;
122 }
123
124 public void setValueChangeListener(String l)
125 {
126 this.valueChangeListener = l;
127 }
128
129 public void setEnabled(String e)
130 {
131 this.enabled = e;
132 }
133
134 public void setStyle(String s)
135 {
136 this.style = s;
137 }
138
139 public void setStyleClass(String sc)
140 {
141 this.styleClass = sc;
142 }
143
144 public boolean isTrue(String v)
145 {
146 return ("true".equalsIgnoreCase(v) || "1".equals(v));
147 }
148 }