// Copyright (c) 2012 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 UI_AURA_CLIENT_TOOLTIP_CLIENT_H_
#define UI_AURA_CLIENT_TOOLTIP_CLIENT_H_
#pragma once

#include "ui/aura/aura_export.h"
#include "ui/aura/event.h"
#include "ui/gfx/font.h"

namespace aura {
class Window;
namespace client {

// A property key to store the tooltip client for the root window. The type of
// the value is |aura::client::TooltipClient*|.
AURA_EXPORT extern const char kRootWindowTooltipClientKey[];

// A property key to store tooltip text for a window. The type of the value
// is |string16*|.
AURA_EXPORT extern const char kTooltipTextKey[];

class AURA_EXPORT TooltipClient {
 public:
  // Informs the shell tooltip manager of change in tooltip for window |target|.
  virtual void UpdateTooltip(Window* target) = 0;

  // Enables/Disables tooltips.
  virtual void SetTooltipsEnabled(bool enable) = 0;
};

AURA_EXPORT void SetTooltipClient(TooltipClient* client);
AURA_EXPORT TooltipClient* GetTooltipClient();
AURA_EXPORT void SetTooltipText(Window* window, string16* tooltip_text);
AURA_EXPORT const string16 GetTooltipText(Window* window);

}  // namespace client
}  // namespace aura

#endif  // UI_AURA_CLIENT_TOOLTIP_CLIENT_H_