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// Copyright 2013 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef UI_VIEWS_COREWM_TOOLTIP_H_
#define UI_VIEWS_COREWM_TOOLTIP_H_
#include <string>
#include "ui/views/views_export.h"
namespace aura {
class Window;
}
namespace gfx {
class Point;
} // namespace gfx
namespace wm {
class TooltipObserver;
}
namespace views::corewm {
enum class TooltipTrigger {
kCursor,
kKeyboard,
};
// Tooltip is responsible for showing the tooltip in an appropriate manner.
// Tooltip is used by TooltipController.
class VIEWS_EXPORT Tooltip {
public:
virtual ~Tooltip() = default;
virtual void AddObserver(wm::TooltipObserver* observer) = 0;
virtual void RemoveObserver(wm::TooltipObserver* observer) = 0;
// Returns the max width of the tooltip when shown at the specified location.
virtual int GetMaxWidth(const gfx::Point& location) const = 0;
virtual void SetMaxWidth(int width) {}
// Updates the text on the tooltip and resizes to fit.
// `position` is relative to `window` and in `window` coordinate space.
virtual void Update(aura::Window* window,
const std::u16string& tooltip_text,
const gfx::Point& position,
const TooltipTrigger trigger) = 0;
// Shows the tooltip at the specified location (in screen coordinates).
virtual void Show() = 0;
// Hides the tooltip.
virtual void Hide() = 0;
// Is the tooltip visible?
virtual bool IsVisible() = 0;
};
} // namespace views::corewm
#endif // UI_VIEWS_COREWM_TOOLTIP_H_
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