Bug 328321: Handle attempt to open editor for closed resources.

core/org.eclipse.cdt.core/model/org/eclipse/cdt/core/model/util/CElementBaseLabels.java

@@ -839,7 +839,7 @@ public class CElementBaseLabels {
 		if (getFlag(flags, T_FULLY_QUALIFIED)) {
 			ICElement parent= elem.getParent();
 			boolean isQualifier= true;
-			if (parent != null && parent.exists()) {
+			if (parent != null) {
 				switch (parent.getElementType()) {
 				case ICElement.C_ARCHIVE:
 				case ICElement.C_BINARY:

core/org.eclipse.cdt.ui/src/org/eclipse/cdt/internal/ui/viewsupport/CElementLabelComposer.java

@@ -846,7 +846,7 @@ public class CElementLabelComposer {
 		if (getFlag(flags, CElementLabels.T_FULLY_QUALIFIED)) {
 			ICElement parent= elem.getParent();
 			boolean isQualifier= true;
-			if (parent != null && parent.exists()) {
+			if (parent != null) {
 				switch (parent.getElementType()) {
 				case ICElement.C_ARCHIVE:
 				case ICElement.C_BINARY:

core/org.eclipse.cdt.ui/src/org/eclipse/cdt/internal/ui/viewsupport/EditorOpener.java

@@ -20,8 +20,11 @@ import org.eclipse.core.runtime.CoreException;
 import org.eclipse.core.runtime.IPath;
 import org.eclipse.jface.text.IRegion;
 import org.eclipse.jface.text.Region;
+import org.eclipse.osgi.util.NLS;
+import org.eclipse.swt.widgets.Display;
 import org.eclipse.ui.IEditorPart;
 import org.eclipse.ui.IWorkbenchPage;
+import org.eclipse.ui.IWorkbenchPartSite;
 import org.eclipse.ui.PartInitException;
 import org.eclipse.ui.ide.IDE;
 import org.eclipse.ui.texteditor.ITextEditor;
@@ -38,6 +41,7 @@ import org.eclipse.cdt.ui.CUIPlugin;
 import org.eclipse.cdt.internal.core.model.ext.ICElementHandle;
 
 import org.eclipse.cdt.internal.ui.util.EditorUtility;
+import org.eclipse.cdt.internal.ui.util.StatusLineHandler;
 
 /**
  * An utility to open editors for references or elements.
@@ -54,6 +58,13 @@ public class EditorOpener {
 				timestamp= file.getLocalTimeStamp();
 			}
 			try {
+				// Bug 328321: Linked resources of closed projects report wrong location.
+				if (!file.exists()) {
+					final IWorkbenchPartSite site = page.getActivePart().getSite();
+					showStatus(site, 3000,
+							NLS.bind(Messages.EditorOpener_fileDoesNotExist, file.getName()));
+					return;
+				}
 				editor= IDE.openEditor(page, file, false);
 			} catch (PartInitException e) {
 				CUIPlugin.log(e);
@@ -62,6 +73,15 @@ public class EditorOpener {
 		}
 	}
 
+	private static void showStatus(final IWorkbenchPartSite site, int duration, String msg) {
+		StatusLineHandler.showStatusLineMessage(site, msg);
+		 Display.getCurrent().timerExec(duration, new Runnable() {
+			public void run() {
+				StatusLineHandler.clearStatusLine(site);
+			}
+		});
+	}
+
 	private static void selectRegion(IPath filebufferKey, IRegion region, long timestamp, IEditorPart editor) {
 		if (editor instanceof ITextEditor) {
             ITextEditor te= (ITextEditor) editor;

core/org.eclipse.cdt.ui/src/org/eclipse/cdt/internal/ui/viewsupport/Messages.java

@@ -14,6 +14,7 @@ import org.eclipse.osgi.util.NLS;
 
 public class Messages extends NLS {
 	private static final String BUNDLE_NAME = "org.eclipse.cdt.internal.ui.viewsupport.messages"; //$NON-NLS-1$
+	public static String EditorOpener_fileDoesNotExist;
 	public static String IndexedFilesCache_jobName;
 	public static String IndexUI_infoNotInIndex;
 	public static String IndexUI_infoNotInSource;

core/org.eclipse.cdt.ui/src/org/eclipse/cdt/internal/ui/viewsupport/messages.properties

@@ -8,6 +8,7 @@
 #  Contributors:
 #     Markus Schorn - initial API and implementation
 ################################################################################
+EditorOpener_fileDoesNotExist=File ''{0}'' no longer exists
 IndexedFilesCache_jobName=Initialize C/C++ Index Label Provider
 IndexUI_infoNotInSource=The element ''{0}'' does not belong to a source file.
 IndexUI_infoNotInIndex=The file ''{0}'' is currently not part of the index.