--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/org.chromium.debug.ui/src/org/chromium/debug/ui/actions/JsInspectExpression.java	Wed Dec 23 17:13:18 2009 -0800
@@ -0,0 +1,104 @@
+// Copyright (c) 2009 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+package org.chromium.debug.ui.actions;
+
+import org.chromium.debug.core.ChromiumDebugPlugin;
+import org.chromium.debug.core.model.StackFrame;
+import org.chromium.debug.core.model.Value;
+import org.chromium.sdk.JsVariable;
+import org.eclipse.core.runtime.PlatformObject;
+import org.eclipse.debug.core.DebugEvent;
+import org.eclipse.debug.core.DebugPlugin;
+import org.eclipse.debug.core.IDebugEventSetListener;
+import org.eclipse.debug.core.ILaunch;
+import org.eclipse.debug.core.model.IDebugElement;
+import org.eclipse.debug.core.model.IDebugTarget;
+import org.eclipse.debug.core.model.IErrorReportingExpression;
+import org.eclipse.debug.core.model.IValue;
+
+/**
+ * An Eclipse object for the JavaScript inspected expression.
+ */
+public class JsInspectExpression extends PlatformObject
+    implements IErrorReportingExpression, IDebugEventSetListener {
+
+  private final StackFrame stackFrame;
+
+  private final JsVariable variable;
+
+  private final String errorMessage;
+
+  private final String expression;
+
+  public JsInspectExpression(StackFrame stackFrame, String expression, JsVariable variable,
+      String errorMessage) {
+    this.stackFrame = stackFrame;
+    this.expression = expression;
+    this.variable = variable;
+    this.errorMessage = errorMessage;
+  }
+
+  public String[] getErrorMessages() {
+    return errorMessage == null
+        ? new String[0]
+        : new String[] { errorMessage };
+  }
+
+  public boolean hasErrors() {
+    return errorMessage != null;
+  }
+
+  public void dispose() {
+  }
+
+  public IDebugTarget getDebugTarget() {
+    IValue value = getValue();
+    if (value != null) {
+      return value.getDebugTarget();
+    }
+    return null;
+  }
+
+  public String getExpressionText() {
+    return expression;
+  }
+
+  public IValue getValue() {
+    return variable != null
+        ? Value.create(stackFrame.getDebugTarget(), variable.getValue())
+        : null;
+  }
+
+  public ILaunch getLaunch() {
+    return getValue().getLaunch();
+  }
+
+  public String getModelIdentifier() {
+    return ChromiumDebugPlugin.DEBUG_MODEL_ID;
+  }
+
+  public void handleDebugEvents(DebugEvent[] events) {
+    for (DebugEvent event : events) {
+      switch (event.getKind()) {
+        case DebugEvent.TERMINATE:
+          if (event.getSource().equals(getDebugTarget())) {
+            DebugPlugin.getDefault().getExpressionManager().removeExpression(this);
+          }
+          break;
+        case DebugEvent.SUSPEND:
+          if (event.getDetail() != DebugEvent.EVALUATION_IMPLICIT &&
+              event.getSource() instanceof IDebugElement) {
+            IDebugElement source = (IDebugElement) event.getSource();
+            if (source.getDebugTarget().equals(getDebugTarget())) {
+              DebugPlugin.getDefault().fireDebugEventSet(new DebugEvent[] {
+                  new DebugEvent(this, DebugEvent.CHANGE, DebugEvent.CONTENT) });
+            }
+          }
+          break;
+      }
+    }
+  }
+
+}