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Posted to jetspeed-dev@portals.apache.org by jf...@apache.org on 2004/09/02 17:13:32 UTC
cvs commit: jakarta-jetspeed-2/taglibs/treecontrol/src/java/org/apache/jetspeed/portlets/tags PortletTreeControlTag.java
jford 2004/09/02 08:13:32
Modified: taglibs/treecontrol/src/java/org/apache/jetspeed/portlets/tags
PortletTreeControlTag.java
Log:
Override parent's render method to support dynamic creation of portlet urls since they cannot be cached by the nodes.
Revision Changes Path
1.2 +226 -0 jakarta-jetspeed-2/taglibs/treecontrol/src/java/org/apache/jetspeed/portlets/tags/PortletTreeControlTag.java
Index: PortletTreeControlTag.java
===================================================================
RCS file: /home/cvs/jakarta-jetspeed-2/taglibs/treecontrol/src/java/org/apache/jetspeed/portlets/tags/PortletTreeControlTag.java,v
retrieving revision 1.1
retrieving revision 1.2
diff -u -r1.1 -r1.2
--- PortletTreeControlTag.java 5 Jul 2004 17:01:18 -0000 1.1
+++ PortletTreeControlTag.java 2 Sep 2004 15:13:32 -0000 1.2
@@ -15,10 +15,19 @@
*/
package org.apache.jetspeed.portlets.tags;
+import java.io.IOException;
+import java.net.URLEncoder;
+
+import javax.portlet.PortletConfig;
import javax.portlet.PortletRequest;
+import javax.portlet.PortletURL;
+import javax.portlet.RenderResponse;
+import javax.servlet.http.HttpServletResponse;
import javax.servlet.jsp.JspException;
+import javax.servlet.jsp.JspWriter;
import org.apache.webapp.admin.TreeControl;
+import org.apache.webapp.admin.TreeControlNode;
import org.apache.webapp.admin.TreeControlTag;
/**
@@ -67,5 +76,222 @@
}
return (TreeControl)treeControl;
+ }
+
+ /**
+ * Render the specified node, as controlled by the specified parameters.
+ *
+ * @param out The <code>JspWriter</code> to which we are writing
+ * @param node The <code>TreeControlNode</code> we are currently
+ * rendering
+ * @param level The indentation level of this node in the tree
+ * @param width Total displayable width of the tree
+ * @param last Is this the last node in a list?
+ *
+ * @exception IOException if an input/output error occurs
+ */
+ protected void render(JspWriter out, TreeControlNode node,
+ int level, int width, boolean last)
+ throws IOException {
+
+ HttpServletResponse response =
+ (HttpServletResponse) pageContext.getResponse();
+
+ PortletRequest renderRequest = (PortletRequest)pageContext.getRequest().getAttribute("javax.portlet.request");
+ RenderResponse renderResponse = (RenderResponse)pageContext.getRequest().getAttribute("javax.portlet.response");
+ PortletConfig portletConfig = (PortletConfig)pageContext.getRequest().getAttribute("javax.portlet.config");
+
+
+
+ // if the node is root node and the label value is
+ // null, then do not render root node in the tree.
+
+ if ("ROOT-NODE".equalsIgnoreCase(node.getName()) &&
+ (node.getLabel() == null)) {
+ // Render the children of this node
+ TreeControlNode children[] = node.findChildren();
+ int lastIndex = children.length - 1;
+ int newLevel = level + 1;
+ for (int i = 0; i < children.length; i++) {
+ render(out, children[i], newLevel, width, i == lastIndex);
+ }
+ return;
+ }
+
+ // Render the beginning of this node
+ out.println(" <tr valign=\"middle\">");
+
+ // Create the appropriate number of indents
+ for (int i = 0; i < level; i++) {
+ int levels = level - i;
+ TreeControlNode parent = node;
+ for (int j = 1; j <= levels; j++)
+ parent = parent.getParent();
+ if (parent.isLast())
+ out.print(" <td></td>");
+ else {
+ out.print(" <td><img src=\"");
+ out.print(images);
+ out.print("/");
+ out.print(IMAGE_LINE_VERTICAL);
+ out.print("\" alt=\"\" border=\"0\"></td>");
+ }
+ out.println();
+ }
+
+ // Render the tree state image for this node
+
+ // HACK to take into account special characters like = and &
+ // in the node name, could remove this code if encode URL
+ // and later request.getParameter() could deal with = and &
+ // character in parameter values.
+ String encodedNodeName = URLEncoder.encode(node.getName());
+
+ String action = replace(getAction(), "${name}", encodedNodeName);
+
+
+ String updateTreeAction =
+ replace(getAction(), "tree=${name}", "select=" + encodedNodeName);
+ updateTreeAction =
+ ((HttpServletResponse) pageContext.getResponse()).
+ encodeURL(updateTreeAction);
+
+ out.print(" <td>");
+ if ((action != null) && !node.isLeaf()) {
+ out.print("<a href=\"");
+ out.print(response.encodeURL(action));
+ out.print("\">");
+ }
+ out.print("<img src=\"");
+ out.print(images);
+ out.print("/");
+ if (node.isLeaf()) {
+ if (node.isLast())
+ out.print(IMAGE_LINE_LAST);
+ else
+ out.print(IMAGE_LINE_MIDDLE);
+ out.print("\" alt=\"");
+ } else if (node.isExpanded()) {
+ if (node.isLast())
+ out.print(IMAGE_HANDLE_DOWN_LAST);
+ else
+ out.print(IMAGE_HANDLE_DOWN_MIDDLE);
+ out.print("\" alt=\"close node");
+ } else {
+ if (node.isLast())
+ out.print(IMAGE_HANDLE_RIGHT_LAST);
+ else
+ out.print(IMAGE_HANDLE_RIGHT_MIDDLE);
+ out.print("\" alt=\"expand node");
+ }
+ out.print("\" border=\"0\">");
+ if ((action != null) && !node.isLeaf())
+ out.print("</a>");
+ out.println("</td>");
+
+ // Calculate the hyperlink for this node (if any)
+ String hyperlink = null;
+ if (node.getAction() != null)
+ {
+ if(node.getAction().equals("portlet_url"))
+ {
+ PortletURL actionUrl = renderResponse.createActionURL();
+ actionUrl.setParameter("select_node", node.getName());
+ hyperlink = ((HttpServletResponse) pageContext.getResponse()).encodeURL(actionUrl.toString());
+ }
+ else
+ {
+ hyperlink = ((HttpServletResponse) pageContext.getResponse()).
+ encodeURL(node.getAction());
+ }
+ }
+
+ // Render the icon for this node (if any)
+ out.print(" <td colspan=\"");
+ out.print(width - level + 1);
+ out.print("\">");
+ if (node.getIcon() != null) {
+ if (hyperlink != null) {
+ out.print("<a href=\"");
+ out.print(hyperlink);
+ out.print("\"");
+ String target = node.getTarget();
+ if(target != null) {
+ out.print(" target=\"");
+ out.print(target);
+ out.print("\"");
+ }
+ // to refresh the tree in the same 'self' frame
+ out.print(" onclick=\"");
+ out.print("self.location.href='" + updateTreeAction + "'");
+ out.print("\"");
+ out.print(">");
+ }
+ out.print("<img src=\"");
+ out.print(images);
+ out.print("/");
+ out.print(node.getIcon());
+ out.print("\" alt=\"");
+ out.print("\" border=\"0\">");
+ if (hyperlink != null)
+ out.print("</a>");
+ }
+
+ // Render the label for this node (if any)
+
+ if (node.getLabel() != null) {
+ String labelStyle = null;
+ if (node.isSelected() && (styleSelected != null))
+ labelStyle = styleSelected;
+ else if (!node.isSelected() && (styleUnselected != null))
+ labelStyle = styleUnselected;
+ if (hyperlink != null) {
+ // Note the leading space so that the text has some space
+ // between it and any preceding images
+ out.print(" <a href=\"");
+ out.print(hyperlink);
+ out.print("\"");
+ String target = node.getTarget();
+ if(target != null) {
+ out.print(" target=\"");
+ out.print(target);
+ out.print("\"");
+ }
+ if (labelStyle != null) {
+ out.print(" class=\"");
+ out.print(labelStyle);
+ out.print("\"");
+ }
+ // to refresh the tree in the same 'self' frame
+ out.print(" onclick=\"");
+ out.print("self.location.href='" + updateTreeAction + "'");
+ out.print("\"");
+ out.print(">");
+ } else if (labelStyle != null) {
+ out.print("<span class=\"");
+ out.print(labelStyle);
+ out.print("\">");
+ }
+ out.print(node.getLabel());
+ if (hyperlink != null)
+ out.print("</a>");
+ else if (labelStyle != null)
+ out.print("</span>");
+ }
+ out.println("</td>");
+
+ // Render the end of this node
+ out.println(" </tr>");
+
+ // Render the children of this node
+ if (node.isExpanded()) {
+ TreeControlNode children[] = node.findChildren();
+ int lastIndex = children.length - 1;
+ int newLevel = level + 1;
+ for (int i = 0; i < children.length; i++) {
+ render(out, children[i], newLevel, width, i == lastIndex);
+ }
+ }
+
}
}
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