diff -r d4809db37847 -r 06589bf52fa7 plugins/org.symbian.tools.tmw.debug/src/org/symbian/tools/tmw/debug/internal/launch/WebApplicationSourceLocator.java
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/plugins/org.symbian.tools.tmw.debug/src/org/symbian/tools/tmw/debug/internal/launch/WebApplicationSourceLocator.java	Mon Aug 23 09:55:57 2010 -0700
@@ -0,0 +1,147 @@
+/**
+ * Copyright (c) 2010 Symbian Foundation and/or its subsidiary(-ies).
+ * All rights reserved.
+ * This component and the accompanying materials are made available
+ * under the terms of the License "Eclipse Public License v1.0"
+ * which accompanies this distribution, and is available
+ * at the URL "http://www.eclipse.org/legal/epl-v10.html".
+ *
+ * Initial Contributors:
+ * Symbian Foundation - initial contribution.
+ * Contributors:
+ * Description:
+ * Overview:
+ * Details:
+ * Platforms/Drives/Compatibility:
+ * Assumptions/Requirement/Pre-requisites:
+ * Failures and causes:
+ */
+package org.symbian.tools.tmw.debug.internal.launch;
+
+import java.io.BufferedWriter;
+import java.io.File;
+import java.io.FileWriter;
+import java.io.IOException;
+import java.net.URI;
+import java.net.URISyntaxException;
+
+import org.chromium.debug.core.model.StackFrame;
+import org.chromium.sdk.Script;
+import org.eclipse.core.filesystem.EFS;
+import org.eclipse.core.resources.IFile;
+import org.eclipse.core.runtime.CoreException;
+import org.eclipse.core.runtime.IPath;
+import org.eclipse.core.runtime.IStatus;
+import org.eclipse.core.runtime.Path;
+import org.eclipse.core.runtime.Status;
+import org.eclipse.debug.core.model.ISourceLocator;
+import org.eclipse.debug.core.model.IStackFrame;
+import org.eclipse.debug.core.sourcelookup.AbstractSourceLookupDirector;
+import org.eclipse.debug.core.sourcelookup.AbstractSourceLookupParticipant;
+import org.eclipse.debug.core.sourcelookup.ISourceLookupDirector;
+import org.eclipse.debug.core.sourcelookup.ISourceLookupParticipant;
+import org.symbian.tools.tmw.debug.internal.Activator;
+import org.symbian.tools.tmw.debug.internal.model.ResourceManager;
+import org.symbian.tools.tmw.previewer.PreviewerPlugin;
+import org.symbian.tools.tmw.previewer.http.WebappManager;
+
+public final class WebApplicationSourceLocator extends AbstractSourceLookupDirector implements ISourceLocator,
+        ISourceLookupDirector {
+    public static final class WebApplicationSourceLookupParticipant extends AbstractSourceLookupParticipant {
+        private final ResourceManager resourceManager;
+        private final WebApplicationSourceLocator locator;
+
+        public WebApplicationSourceLookupParticipant(WebApplicationSourceLocator locator,
+                ResourceManager resourceManager) {
+            this.locator = locator;
+            this.resourceManager = resourceManager;
+        }
+
+        public String getSourceName(Object object) throws CoreException {
+            Script script = null;
+            if (object instanceof StackFrame) {
+                script = ((StackFrame) object).getCallFrame().getScript();
+            } else if (object instanceof Script) {
+                script = (Script) object;
+            } else {
+                System.out.println("Source lookup request for " + object.getClass());
+            }
+            if (script != null) {
+                IFile resource = resourceManager.getResource(script);
+                if (resource != null) {
+                    return resource.getProjectRelativePath().toString();
+                } else {
+                    return locator.fileUrl(script);
+                }
+            }
+            return null;
+        }
+    }
+
+    private final ResourceManager resourceManager;
+
+    public WebApplicationSourceLocator(ResourceManager resourceManager) {
+        this.resourceManager = resourceManager;
+    }
+
+    public String fileUrl(Script script) throws CoreException {
+        String name = script.getName();
+        try {
+            URI uri = new URI(name);
+            if ("http".equals(uri.getScheme()) && WebappManager.getHost().equals(uri.getHost())
+                    && WebappManager.getPort() == uri.getPort()) {
+                final IPath stateLocation = Activator.getDefault().getStateLocation();
+                final IPath path = stateLocation.append("systemlibraries")
+                        .append(new Path(uri.getPath()).lastSegment());
+                final File file = path.toFile();
+                file.getParentFile().mkdirs();
+                final String source = script.getSource();
+                final BufferedWriter writer = new BufferedWriter(new FileWriter(file));
+                try {
+                    writer.write(source);
+                } finally {
+                    writer.close();
+                }
+                return new Path(file.getParentFile().getName()).append(file.getName()).toString();
+            }
+        } catch (URISyntaxException e) {
+            throw new RuntimeException(e);
+        } catch (IOException e) {
+            throw new CoreException(new Status(IStatus.ERROR, Activator.PLUGIN_ID,
+                    "Cannot load web runtime system libraries", e));
+        }
+        return null;
+    }
+
+    public Object getSourceElement(IStackFrame stackFrame) {
+		if (stackFrame instanceof StackFrame == false) {
+			return null;
+		}
+		StackFrame jsStackFrame = (StackFrame) stackFrame;
+
+		Script script = jsStackFrame.getCallFrame().getScript();
+		if (script == null) {
+			return null;
+		}
+
+		IFile resource = resourceManager.getResource(script);
+		if (resource != null) {
+			return resource;
+		} else {
+			File file = PreviewerPlugin.getDefault().getHttpPreviewer().getLocalFile(script.getName());
+            if (file != null) {
+				try {
+					return EFS.getStore(file.toURI());
+				} catch (CoreException e) {
+					Activator.log(e);
+				}
+			}
+		}
+		return null;
+	}
+
+    public void initializeParticipants() {
+        addParticipants(new ISourceLookupParticipant[] { new WebApplicationSourceLookupParticipant(this,
+                resourceManager) });
+    }
+}
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