simple tree widget

git-svn-id: https://svn.apache.org/repos/asf/incubator/webwork2@396783 13f79535-47bb-0310-9956-ffa450edef68
2026-08-31 11:24:28 +00:00 · 2006-04-25 06:25:27 +00:00
parent 4c3d6862a7
commit 2707caa8dc
8 changed files with 209 additions and 9 deletions
@@ -0,0 +1,87 @@
+package org.apache.struts.action2.showcase.ajax.tree;
+
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.ArrayList;
+
+/**
+ * @author <a href="mailto:plightbo@gmail.com">Patrick Lightbody</a>
+ */
+public class Category {
+    private static Map<Long, Category> catMap = new HashMap<Long, Category>();
+
+    static {
+        new Category(1, "Root",
+                new Category(2, "Java",
+                        new Category(3, "Web Frameworks",
+                                new Category(4, "WebWork"),
+                                new Category(5, "Struts Action"),
+                                new Category(6, "Struts Shale"),
+                                new Category(7, "Stripes"),
+                                new Category(8, "Rife")),
+                        new Category(9, "Persistence",
+                                new Category(10, "iBatis"),
+                                new Category(11, "Hibernate"),
+                                new Category(12, "JDO"),
+                                new Category(13, "JDBC"))),
+                new Category(14, "JavaScript",
+                        new Category(15, "Dojo"),
+                        new Category(16, "Prototype"),
+                        new Category(17, "Scriptaculous"),
+                        new Category(18, "OpenRico"),
+                        new Category(19, "DWR")));
+    }
+
+    public static Category getById(long id) {
+        return catMap.get(id);
+    }
+
+    private long id;
+    private String name;
+    private List<Category> children;
+    private boolean toggle;
+
+    public Category(long id, String name, Category... children) {
+        this.id = id;
+        this.name = name;
+        this.children = new ArrayList<Category>();
+        for (Category child : children) {
+            this.children.add(child);
+        }
+
+        catMap.put(id, this);
+    }
+
+    public long getId() {
+        return id;
+    }
+
+    public void setId(long id) {
+        this.id = id;
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public void setName(String name) {
+        this.name = name;
+    }
+
+    public List<Category> getChildren() {
+        return children;
+    }
+
+    public void setChildren(List<Category> children) {
+        this.children = children;
+    }
+
+    public void toggle() {
+        toggle = !toggle;
+    }
+
+    public boolean isToggle() {
+        return toggle;
+    }
+}
@@ -0,0 +1,30 @@
+package org.apache.struts.action2.showcase.ajax.tree;
+
+import com.opensymphony.xwork.ActionSupport;
+
+/**
+ * @author <a href="mailto:plightbo@gmail.com">Patrick Lightbody</a>
+ */
+public class GetCategory extends ActionSupport {
+    private long catId;
+    private Category category;
+
+    public String execute() throws Exception {
+        if (catId < 1) {
+            // force the root
+            catId = 1;
+        }
+
+        category = Category.getById(catId);
+
+        return SUCCESS;
+    }
+
+    public void setCatId(long catId) {
+        this.catId = catId;
+    }
+
+    public Category getCategory() {
+        return category;
+    }
+}
@@ -0,0 +1,16 @@
+package org.apache.struts.action2.showcase.ajax.tree;
+
+import com.opensymphony.xwork.ActionSupport;
+
+/**
+ * @author <a href="mailto:plightbo@gmail.com">Patrick Lightbody</a>
+ */
+public class Toggle extends GetCategory {
+    public String execute() throws Exception {
+        super.execute();
+
+        getCategory().toggle();
+
+        return SUCCESS;
+    }
+}
@@ -5,27 +5,39 @@

    <package name="ajax" extends="struts-default">
        <action name="AjaxTest" class="org.apache.struts.action2.showcase.ajax.AjaxTestAction">
-            <result name="success">/ajax/AjaxResult.jsp</result>
+            <result>/ajax/AjaxResult.jsp</result>
        </action>

        <action name="AjaxRemoteLink" class="org.apache.struts.action2.showcase.ajax.AjaxTestAction">
-            <result name="success">/ajax/AjaxResult2.js</result>
+            <result>/ajax/AjaxResult2.js</result>
        </action>

        <action name="AjaxRemoteForm" class="org.apache.struts.action2.showcase.ajax.AjaxTestAction">
-            <result name="success">/ajax/AjaxResult3.jsp</result>
+            <result>/ajax/AjaxResult3.jsp</result>
        </action>

-        <action name="Test1" class="com.opensymphony.xwork.ActionSupport">
-            <result name="success">/ajax/remoteforms/test2.jsp</result>
+        <action name="Test1">
+            <result>/ajax/remoteforms/test2.jsp</result>
        </action>

-        <action name="Test2" class="com.opensymphony.xwork.ActionSupport">
-            <result name="success">/ajax/remoteforms/test3.jsp</result>
+        <action name="Test2">
+            <result>/ajax/remoteforms/test3.jsp</result>
        </action>

-        <action name="Test3" class="com.opensymphony.xwork.ActionSupport">
-            <result name="success">/ajax/testjs.jsp</result>
+        <action name="Test3">
+            <result>/ajax/testjs.jsp</result>
+        </action>
+
+        <action name="tree">
+            <result>/ajax/tree/tree.jsp</result>
+        </action>
+
+        <action name="getCategory" class="org.apache.struts.action2.showcase.ajax.tree.GetCategory">
+            <result>/ajax/tree/getCategory.jsp</result>
+        </action>
+
+        <action name="toggle" class="org.apache.struts.action2.showcase.ajax.tree.Toggle">
+            <result>/ajax/tree/toggle.jsp</result>
        </action>
    </package>
 </xwork>
@@ -0,0 +1,24 @@
+<%@ taglib prefix="saf" uri="/struts-action" %>
+<%@include file="partialChunkHeader.jsp"%>
+<ul>
+<saf:iterator value="category.children">
+    <li>
+        <saf:if test="children.size() > 0">
+            <saf:a theme="ajax" href="toggle.action?catId=%{id}">+</saf:a>
+        </saf:if>
+        <saf:property value="name"/>
+    </li>
+    <saf:if test="toggle">
+        <saf:set name="display" value="'none'"/>
+    </saf:if>
+    <saf:else>
+        <saf:set name="display" value="''"/>
+    </saf:else>
+
+    <saf:div theme="ajax"
+            id="children_%{id}"
+            cssStyle="display: %{display}"
+            href="getCategory.action?catId=%{id}"
+            listenTopics="children_%{id}"/>
+</saf:iterator>
+</ul>
@@ -0,0 +1,6 @@
+<%
+    request.setAttribute("decorator", "none");
+    response.setHeader("Cache-Control","no-cache"); //HTTP 1.1
+    response.setHeader("Pragma","no-cache"); //HTTP 1.0
+    response.setDateHeader ("Expires", 0); //prevents caching at the proxy server
+%>
@@ -0,0 +1,12 @@
+<%@ taglib prefix="saf" uri="/struts-action" %>
+<%@include file="partialChunkHeader.jsp"%>
+<%
+    response.setContentType("text/javascript");
+%>
+dojo.event.topic.publish("children_<saf:property value="category.id"/>");
+var d = document.getElementById("children_<saf:property value="category.id"/>");
+if (d.style.display != "none") {
+    d.style.display = "none";
+} else {
+    d.style.display = "";
+}
@@ -0,0 +1,13 @@
+<%@ taglib prefix="saf" uri="/struts-action" %>
+<html>
+<head>
+    <title>Tree</title>
+    <saf:head theme="ajax"/>
+</head>
+
+<body>
+
+<saf:action name="getCategory" executeResult="true"/>
+
+</body>
+</html>