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.TimeIntervalUIComponent;
016
017 public class TimeIntervalTag extends UIComponentTag
018 {
019 private static final Logger log = Logger.getLogger(TimeIntervalTag.class);
020
021 public String getComponentType() { return "edu.nrao.sss.TimeInterval"; }
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 log.debug("Enabled flag was: " + enabled);
067 if (isValueReference(enabled))
068 {
069 ValueBinding vb = app.createValueBinding(enabled);
070
071 component.setValueBinding("enabled", vb);
072 }
073
074 else
075 {
076 ((TimeIntervalUIComponent)component).setEnabled(isTrue(enabled));
077 }
078 }
079
080 if (style != null)
081 {
082 if (isValueReference(style))
083 {
084 ValueBinding vb = app.createValueBinding(style);
085
086 component.setValueBinding("style", vb);
087 }
088
089 else
090 {
091 component.getAttributes().put("style", style);
092 }
093 }
094
095 if (styleClass != null)
096 {
097 if (isValueReference(styleClass))
098 {
099 ValueBinding vb = app.createValueBinding(styleClass);
100
101 component.setValueBinding("styleClass", vb);
102 }
103
104 else
105 {
106 component.getAttributes().put("styleClass", styleClass);
107 }
108 }
109 }
110
111 public void setValue(String v)
112 {
113 this.value = v;
114 }
115
116 public void setValueChangeListener(String l)
117 {
118 this.valueChangeListener = l;
119 }
120
121 public void setEnabled(String e)
122 {
123 this.enabled = e;
124 }
125
126 public void setStyle(String s)
127 {
128 this.style = s;
129 }
130
131 public void setStyleClass(String sc)
132 {
133 this.styleClass = sc;
134 }
135
136 public boolean isTrue(String v)
137 {
138 return ("true".equalsIgnoreCase(v) || "1".equals(v));
139 }
140 }