implemented #152.

git-svn-id: https://hudson.dev.java.net/svn/hudson/trunk/hudson/main@1132 71c3de6d-444a-0410-be80-ed276b4c234a

core/src/main/java/hudson/Functions.java

@@ -170,6 +170,12 @@ public class Functions {
         return null;
     }
 
+    public static String getCookie(HttpServletRequest req,String name, String defaultValue) {
+        Cookie c = getCookie(req, name);
+        if(c==null || c.getValue()==null) return defaultValue;
+        return c.getValue();
+    }
+
     /**
      * Creates a sub map by using the given range (both ends inclusive).
      */

core/src/main/java/hudson/model/Hudson.java

@@ -30,6 +30,7 @@ import javax.servlet.ServletContext;
 import javax.servlet.ServletException;
 import javax.servlet.http.HttpServletResponse;
 import javax.servlet.http.HttpSession;
+import javax.servlet.http.Cookie;
 import java.io.File;
 import java.io.FileFilter;
 import java.io.FileInputStream;
@@ -1045,6 +1046,14 @@ public final class Hudson extends JobCollection implements Node {
         req.getView(this,"_script.jelly").forward(req,rsp);
     }
 
+    /**
+     * Changes the icon size by changing the cookie
+     */
+    public void doIconSize( StaplerRequest req, StaplerResponse rsp ) throws IOException {
+        rsp.addCookie(new Cookie("iconSize",req.getQueryString()));
+        rsp.sendRedirect2(".");
+    }
+
     public void doFingerprintCleanup( StaplerRequest req, StaplerResponse rsp ) throws IOException {
         FingerprintCleanupThread.invoke();
         rsp.setStatus(HttpServletResponse.SC_OK);

core/src/main/resources/lib/hudson/projectView.jelly

@@ -3,6 +3,14 @@
   <%@ attribute name="showViewTabs" required="true" type="java.lang.Boolean" %>
 -->
 <j:jelly xmlns:j="jelly:core" xmlns:x="jelly:xml" xmlns:st="jelly:stapler" xmlns:d="jelly:define" xmlns:l="/lib/layout" xmlns:t="/lib/hudson" xmlns:f="/lib/form">
+  <j:set var="iconSize" value="${h.getCookie(request,'iconSize','32x32')}" />
+  <!--
+    balls look smaller than their actual size,
+    so we try not to make the secondary icons look bigger than the icon.
+    we want the user's eyes to go to balls, not the clock.
+  -->
+  <j:set var="subIconSize" value="${h.ifThenElse(iconSize=='32x32','24x24',iconSize)}"/>
+
   <div class="dashboard">
     <j:if test="${!empty(jobs)}">
       <!-- view tab bar -->
@@ -38,7 +46,7 @@
           <j:set var="lfBuild" value="${job.lastFailedBuild}" />
           <tr>
             <td data="${job.iconColor}">
-              <img width="32" height="32" src="${rootURL}/images/32x32/${job.buildStatusUrl}" />
+              <img src="${rootURL}/images/${iconSize}/${job.buildStatusUrl}" />
             </td>
             <td>
               <a href="${rootURL}/${job.url}">
@@ -86,14 +94,39 @@
             <l:isAdmin>
               <td>
                 <j:if test="${job.buildable}">
-                  <a href="${rootURL}/${job.url}build"><img src="${rootURL}/images/24x24/clock.gif" title="Schedule a build" border="0" /></a>
+                  <a href="${rootURL}/${job.url}build">
+                    <img src="${rootURL}/images/${subIconSize}/clock.gif" title="Schedule a build" border="0" /></a>
                 </j:if>
               </td>
             </l:isAdmin>
           </tr>
         </j:forEach>
       </x:element>
+      <table style="width:100%">
+        <tr>
+          <d:taglib uri="local">
+            <d:tag name="iconSizeLink">
+              <st:nbsp/>
+              <j:choose>
+                <j:when test="${sz==iconSize}">
+                  ${title}
+                </j:when>
+                <j:otherwise>
+                  <a href="${rootURL}/iconSize?${sz}">${title}</a>
+                </j:otherwise>
+              </j:choose>
+            </d:tag>
+          </d:taglib>
+
+          <td xmlns:local="local">Icon:
+            <local:iconSizeLink title="S" sz="16x16" />
+            <local:iconSizeLink title="M" sz="24x24" />
+            <local:iconSizeLink title="L" sz="32x32" />
+          </td><td>
             <t:rssBar />
+          </td>
+        </tr>
+      </table>
     </j:if>
   </div>
 </j:jelly>
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