Hide/show of update context menu working.

Author: Layoric

src/ServiceStackEclipse/plugin.xml

@@ -43,7 +43,7 @@
                 icon="icons/logo-16.png"
                 id="net.servicestack.eclipse.menus.sampleCommand"
                 mnemonic="M">
-                <enabledWhen>
+                <visibleWhen>
 				   <with
 				     variable="selection">
 				     <test
@@ -52,15 +52,15 @@
 				            value="true">
 				     </test>
 				   </with>
-				</enabledWhen>
+				</visibleWhen>
             </command>
       </menuContribution>
    </extension>
    <extension point="org.eclipse.ui.handlers">
       <handler
             class="net.servicestack.eclipse.handlers.SampleHandler"
             commandId="net.servicestack.eclipse.commands.sampleCommand">
-            <enabledWhen>
+            <visibleWhen>
 				   <with
 				     variable="selection">
 				     <test
@@ -69,26 +69,9 @@
 				            value="true">
 				     </test>
 				   </with>
-				</enabledWhen>
+				</visibleWhen>
       </handler>
    </extension>
-   <extension
-         point="org.eclipse.ui.services">
-      <sourceProvider
-            provider="net.servicestack.eclipse.handlers.UpdateCommandState">
-         <variable
-               name="net.servicestack.eclipse.handlers.updatecommandstate.update"
-               priorityLevel="workbench">
-         </variable>
-      </sourceProvider>
-   </extension>
-   <extension
-         id="net.servicetack.eclipse.startup"
-         point="org.eclipse.ui.startup">
-      <startup
-            class="net.servicestack.eclipse.startup.PluginStartup">
-      </startup>
-   </extension>
    <extension point="org.eclipse.core.expressions.propertyTesters">
       <propertyTester
             class="net.servicestack.eclipse.testers.SelectionTester"

src/ServiceStackEclipse/src/net/servicestack/eclipse/startup/PluginStartup.java

@@ -1,6 +1,24 @@
 package net.servicestack.eclipse.testers;
 
+import java.io.BufferedReader;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.InputStreamReader;
+
 import org.eclipse.core.expressions.PropertyTester;
+import org.eclipse.core.resources.IFile;
+import org.eclipse.core.resources.IProject;
+import org.eclipse.core.resources.IResource;
+import org.eclipse.core.runtime.CoreException;
+import org.eclipse.core.runtime.IAdaptable;
+import org.eclipse.core.runtime.IPath;
+import org.eclipse.core.runtime.Path;
+import org.eclipse.jdt.core.ICompilationUnit;
+import org.eclipse.jdt.core.IImportDeclaration;
+import org.eclipse.jface.viewers.ISelection;
+import org.eclipse.jface.viewers.IStructuredSelection;
+import org.eclipse.jface.viewers.ITreeSelection;
+import org.eclipse.jface.viewers.TreeSelection;
 import org.eclipse.ui.IWorkbenchPart;
 import org.eclipse.ui.PlatformUI;
 
@@ -9,14 +27,81 @@ public class SelectionTester extends PropertyTester {
 	@Override
 	public boolean test(Object receiver, String property, Object[] args, Object expectedValue) {
 		if ("hasNonEmptyTextSelection".equals(property)) {
+			if(!(receiver instanceof ITreeSelection)) {
+				return false;
+			}
+			
+			TreeSelection treeSelection = (TreeSelection)receiver;
+	        if(!(treeSelection.getFirstElement() instanceof ICompilationUnit)) {
+	        	return false;
+	        }
+
+	        ICompilationUnit compilationUnit = (ICompilationUnit)treeSelection.getFirstElement();
+	    	IResource resource = extractSelection(treeSelection);
+	    	IProject project = resource.getProject();
+	        IImportDeclaration importDeclaration = compilationUnit.getImport("net.servicestack.client");
+	        if(importDeclaration == null) {
+	        	return false;
+	        }
+	        
+	        IFile file = project.getFile(stripFirstDirectoryFromPath(compilationUnit.getPath()));
+	        InputStream contents = null;
 			try {
-				IWorkbenchPart activePart = PlatformUI.getWorkbench().getActiveWorkbenchWindow().getActivePage().getActivePart();
-				String foo = activePart.toString();
-			} catch (Exception e) {
-				// Do nothing. Will throw an NPE when the application is closed as there is no longer an active part.
+				contents = file.getContents();
+				InputStreamReader is = new InputStreamReader(contents);
+				BufferedReader br = new BufferedReader(is);
+				String read;
+				try {
+					for(int i = 0; i < 10; i++) {
+						String line = br.readLine();
+						if(line.startsWith("/* Options:")) {
+							    return true;
+						}
+					}
+				} catch (IOException e) {
+					// TODO Auto-generated catch block
+					e.printStackTrace();
+				}
+
+			} catch (CoreException e) {
+				// TODO Auto-generated catch block
+				e.printStackTrace();
+			}
+			if(contents == null) {
+				return false;
 			}
+	        System.out.println("File selected");
+			 
 		}
 		return true;
 	}
+	
+    IResource extractSelection(ITreeSelection sel) {
+		if (!(sel instanceof IStructuredSelection))
+			return null;
+		IStructuredSelection ss = (IStructuredSelection) sel;
+		Object element = ss.getFirstElement();
+		if (element instanceof IResource)
+			return (IResource) element;
+		if (!(element instanceof IAdaptable))
+			return null;
+		IAdaptable adaptable = (IAdaptable) element;
+		Object adapter = adaptable.getAdapter(IResource.class);
+		return (IResource) adapter;
+	}
+    
+	private IPath stripFirstDirectoryFromPath(IPath path) {
+		String constructedPath = "";
+		// Skip first segment of project path as we want path relative to
+		// project.
+		for (int i = 1; i < path.segmentCount(); i++) {
+			constructedPath += "/" + path.segment(i);
+		}
+		if (constructedPath.equals("")) {
+			constructedPath = "/";
+		}
+		Path result = new Path(constructedPath);
+		return result;
+	}
 
 }