Print preview: Disable the right context menu items in print preview.

chrome/browser/printing/print_preview_context_menu_observer.h

+// Copyright (c) 2011 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.
+
+#ifndef CHROME_BROWSER_PRINTING_PRINT_PREVIEW_CONTEXT_MENU_OBSERVER_H_
+#define CHROME_BROWSER_PRINTING_PRINT_PREVIEW_CONTEXT_MENU_OBSERVER_H_
+#pragma once
+
+#include "base/basictypes.h"
+#include "base/compiler_specific.h"
+#include "chrome/browser/tab_contents/render_view_context_menu_observer.h"
+
+class TabContentsWrapper;
+
+class PrintPreviewContextMenuObserver : public RenderViewContextMenuObserver {
+ public:
+  explicit PrintPreviewContextMenuObserver(TabContentsWrapper* tab);
+  virtual ~PrintPreviewContextMenuObserver();
+
+  // RenderViewContextMenuObserver implementation.
+  virtual bool IsCommandIdSupported(int command_id) OVERRIDE;
+  virtual bool IsCommandIdEnabled(int command_id) OVERRIDE;
+
+ private:
+  bool IsPrintPreviewTab();
+
+  TabContentsWrapper* tab_;
+
+  DISALLOW_COPY_AND_ASSIGN(PrintPreviewContextMenuObserver);
+};
+
+#endif  // CHROME_BROWSER_PRINTING_PRINT_PREVIEW_CONTEXT_MENU_OBSERVER_H_