1 files changed, 61 insertions, 0 deletions
diff --git a/chrome/browser/omnibox_search_hint.h b/chrome/browser/omnibox_search_hint.h
new file mode 100644
index 0000000..3d92011
--- /dev/null
+++ b/chrome/browser/omnibox_search_hint.h
@@ -0,0 +1,61 @@
+// 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.
+
+#ifndef CHROME_BROWSER_OMNIBOX_SEARCH_HINT_
+#define CHROME_BROWSER_OMNIBOX_SEARCH_HINT_
+
+#include <map>
+#include <string>
+
+#include "base/scoped_ptr.h"
+#include "chrome/common/notification_observer.h"
+#include "chrome/common/notification_registrar.h"
+
+class Profile;
+class TabContents;
+
+// This class is responsible for showing an info-bar that tells the user she
+// can type her search query directly in the omnibox.
+// It is displayed when the user visits a known search engine URL and has not
+// searched from the omnibox before, or has not previously dismissed a similar
+// info-bar.
+class OmniboxSearchHint : public NotificationObserver {
+ public:
+  explicit OmniboxSearchHint(TabContents* tab);
+  ~OmniboxSearchHint();
+
+  // NotificationObserver method:
+  virtual void Observe(NotificationType type,
+                       const NotificationSource& source,
+                       const NotificationDetails& details);
+
+  // Focus the location bar and displays a message instructing that search
+  // queries can be typed directly in there.
+  void ShowEnteringQuery();
+
+  TabContents* tab() { return tab_; }
+
+  // Disables the hint infobar permanently, so that it does not show ever again.
+  void DisableHint();
+
+  // Returns true if the profile and current environment make the showing of the
+  // hint infobar possible.
+  static bool IsEnabled(Profile* profile);
+
+ private:
+  void ShowInfoBar();
+
+  NotificationRegistrar notification_registrar_;
+
+  // The tab we are associated with.
+  TabContents* tab_;
+
+  // A map containing the URLs of the search engine for which we want to
+  // trigger the hint.
+  std::map<std::string, int> search_engine_urls_;
+
+  DISALLOW_COPY_AND_ASSIGN(OmniboxSearchHint);
+};
+
+#endif  // CHROME_BROWSER_OMNIBOX_SEARCH_HINT_