polx 2005/01/26 14:46:28
Modified:
jelly/jelly-tags/swing/src/java/org/apache/commons/jelly/tags/swing
ComponentTag.java
Log:
First stab at rerunnable tags.
Using <panel tagName="myTag">DO SOMETHING${x}</panel>
One can invoke, later, e.g. in an action-tag, ${myTag.rerun()} which should
repopulate the panel by removing first then re-running the body
ot this tag.
paul
Revision Changes Path
1.24 +49 -1
jakarta-commons/jelly/jelly-tags/swing/src/java/org/apache/commons/jelly/tags/swing/ComponentTag.java
Index: ComponentTag.java
===================================================================
RCS file:
/home/cvs/jakarta-commons/jelly/jelly-tags/swing/src/java/org/apache/commons/jelly/tags/swing/ComponentTag.java,v
retrieving revision 1.23
retrieving revision 1.24
diff -u -r1.23 -r1.24
--- ComponentTag.java 12 Jan 2005 08:59:16 -0000 1.23
+++ ComponentTag.java 26 Jan 2005 22:46:28 -0000 1.24
@@ -168,6 +168,40 @@
}
}
}
+
+
+ private String tagName = null;
+
+ private XMLOutput currentOutput = null;
+
+ /** Puts this tag into the context under the given name
+ * allowing later calls to [EMAIL PROTECTED] #rerun()}.
+ * For example, it makes sense to use ${myTag.rerun()} as a child
+ * of an <code>action</code> element.
+ *
+ * @param the name to be used
+ */
+ public void setTagName(String name) {
+ this.tagName = name;
+ }
+
+ /** Runs the body of this script again after clearing the content
+ * of this component.
+ * This is useful to use jelly-logic and "re-populate" a part of the
user-interface
+ * after having updated a model part (e.g. an XML-document).
+ * @throws JellyTagException if anything
+ */
+ public void rerun() throws JellyTagException {
+ Component comp = getComponent();
+ if(comp instanceof java.awt.Container) {
+ ((java.awt.Container) comp).removeAll();
+ }
+ this.doTag(currentOutput,false);
+ if ( comp instanceof javax.swing.JComponent ) {
+ ((javax.swing.JComponent) comp).revalidate();
+ }
+ }
+
/**
* Adds a WindowListener to this component
@@ -290,6 +324,14 @@
* A class may be specified otherwise the Factory will be used.
*/
protected Object newInstance(Class theClass, Map attributes, XMLOutput
output) throws JellyTagException {
+ if (attributes.containsKey("tagName")) {
+ this.setTagName((String)attributes.get("tagName"));
+ addIgnoreProperty("tagName");
+ }
+ if(tagName!=null) {
+ context.setVariable(tagName,this);
+ currentOutput = output;
+ }
try {
if (theClass != null ) {
return theClass.newInstance();
@@ -363,6 +405,7 @@
component.setSize(d);
addIgnoreProperty("size");
}
+
if (attributes.containsKey("debugGraphicsOptions")) {
try {
@@ -398,8 +441,13 @@
* @see
org.apache.commons.jelly.Tag#doTag(org.apache.commons.jelly.XMLOutput)
*/
public void doTag(XMLOutput output) throws JellyTagException {
+ this.doTag(output,true);
+ }
+
+ public void doTag(XMLOutput output, boolean resetBean) throws
JellyTagException {
+ if(resetBean) clearBean();
super.doTag(output);
- clearBean();
+ //clearBean();
}
/** Sets the bean to null, to prevent it from
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