svn commit: r577894 - in /wicket/trunk/jdk-1.5/wicket-examples/src/main/java/org/apache/wicket/examples/compref: LinkPage.html LinkPage.java

[eh...@apache.org]

Author: ehillenius
Date: Thu Sep 20 12:48:26 2007
New Revision: 577894

URL: http://svn.apache.org/viewvc?rev=577894&view=rev
Log:
added example of link state change record

Modified:
    wicket/trunk/jdk-1.5/wicket-examples/src/main/java/org/apache/wicket/examples/compref/LinkPage.html
    wicket/trunk/jdk-1.5/wicket-examples/src/main/java/org/apache/wicket/examples/compref/LinkPage.java

Modified: wicket/trunk/jdk-1.5/wicket-examples/src/main/java/org/apache/wicket/examples/compref/LinkPage.html
URL: http://svn.apache.org/viewvc/wicket/trunk/jdk-1.5/wicket-examples/src/main/java/org/apache/wicket/examples/compref/LinkPage.html?rev=577894&r1=577893&r2=577894&view=diff
==============================================================================
--- wicket/trunk/jdk-1.5/wicket-examples/src/main/java/org/apache/wicket/examples/compref/LinkPage.html (original)
+++ wicket/trunk/jdk-1.5/wicket-examples/src/main/java/org/apache/wicket/examples/compref/LinkPage.html Thu Sep 20 12:48:26 2007
@@ -21,6 +21,11 @@
 	</p>
 
 	<p>
+	Same as above, but this time a link that records a state change.<br />
+	<a href="#" wicket:id="linkWithStateChange">this link is clicked <span wicket:id="label">n</span> times</a>
+	</p>
+
+	<p>
 	And here is a link attached to a button element, with a nested label:<br />
 	<button wicket:id="link2">this button is clicked <span wicket:id="label2">n</span> times</button>
 	</p>

Modified: wicket/trunk/jdk-1.5/wicket-examples/src/main/java/org/apache/wicket/examples/compref/LinkPage.java
URL: http://svn.apache.org/viewvc/wicket/trunk/jdk-1.5/wicket-examples/src/main/java/org/apache/wicket/examples/compref/LinkPage.java?rev=577894&r1=577893&r2=577894&view=diff
==============================================================================
--- wicket/trunk/jdk-1.5/wicket-examples/src/main/java/org/apache/wicket/examples/compref/LinkPage.java (original)
+++ wicket/trunk/jdk-1.5/wicket-examples/src/main/java/org/apache/wicket/examples/compref/LinkPage.java Thu Sep 20 12:48:26 2007
@@ -22,6 +22,8 @@
 import org.apache.wicket.markup.html.basic.Label;
 import org.apache.wicket.markup.html.link.Link;
 import org.apache.wicket.model.Model;
+import org.apache.wicket.model.PropertyModel;
+import org.apache.wicket.version.undo.Change;
 
 
 /**
@@ -51,7 +53,6 @@
 			}
 		};
 		add(link1);
-
 		// add a counter label to the link so that we can display it in the body
 		// of the link
 		link1.add(new Label("label1", new Model()
@@ -62,6 +63,33 @@
 			}
 		}));
 
+		final ClickCount count2 = new ClickCount();
+		// Same idea as above, but now we record a state change. Note that the
+		// URL will change because of this, and pressing the back button and
+		// clicking the link again would revert to the older value.
+		// The same thing could have been achieved by using setModelObject,
+		// which implicitly registers a state change (of type
+		// ComponentModelChange).
+		Link linkWithStateChange = new Link("linkWithStateChange")
+		{
+			public void onClick()
+			{
+				final int count = count1.clicks;
+				count2.clicks++;
+				addStateChange(new Change()
+				{
+					@Override
+					public void undo()
+					{
+						// revert
+						count2.clicks = count;
+					}
+				});
+			}
+		};
+		add(linkWithStateChange);
+		linkWithStateChange.add(new Label("label", new PropertyModel(count2, "clicks")));
+
 		// we can attach Link components to any HTML tag we want. If it is an
 		// anchor (<a href...),
 		// the url to this component is put in the href attribute. For other
@@ -69,9 +97,8 @@
 		// onclick javascript event handler is created that triggers the round
 		// trip
 
-		// it is ofcourse possible to - instead of the above approach - hide as
-		// much of the
-		// component as possible within a class.
+		// it is of course possible to - instead of the above approach - hide as
+		// much of the component as possible within a class.
 		class CustomLink extends Link
 		{
 			final ClickCount count2;