blob: 4c27c361ceef417eea7087ec2e4f0a7181cefa00 [file] [log] [blame]
// 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.
#include <string>
#include "base/strings/string16.h"
#include "ui/views/views_export.h"
namespace gfx {
class FontList;
class Point;
} // namespace gfx
namespace views {
class View;
// TooltipManager takes care of the wiring to support tooltips for Views. You
// almost never need to interact directly with TooltipManager, rather look to
// the various tooltip methods on View.
class VIEWS_EXPORT TooltipManager {
// When a NativeView has capture all events are delivered to it. In some
// situations, such as menus, we want the tooltip to be shown for the
// NativeView the mouse is over, even if it differs from the NativeView that
// has capture (with menus the first menu shown has capture). To enable this
// if the NativeView that has capture has the same value for the property
// |kGroupingPropertyKey| as the NativeView the mouse is over the tooltip is
// shown.
static const char kGroupingPropertyKey[];
TooltipManager() {}
virtual ~TooltipManager() {}
// Returns the maximum width of the tooltip. |point| gives the location
// the tooltip is to be displayed on in screen coordinates.
virtual int GetMaxWidth(const gfx::Point& location) const = 0;
// Returns the font list used for tooltips.
virtual const gfx::FontList& GetFontList() const = 0;
// Notification that the view hierarchy has changed in some way.
virtual void UpdateTooltip() = 0;
// Invoked when the tooltip text changes for the specified views.
virtual void TooltipTextChanged(View* view) = 0;
} // namespace views