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// Copyright 2014 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_VIEWS_VIEW_TARGETER_DELEGATE_H_
#define UI_VIEWS_VIEW_TARGETER_DELEGATE_H_
#include "base/macros.h"
#include "ui/views/views_export.h"
namespace gfx {
class Rect;
}
namespace views {
class View;
// Defines the default behaviour for hit-testing a rectangular region against
// the bounds of a View. Subclasses of View wishing to define custom
// hit-testing behaviour can extend this class.
class VIEWS_EXPORT ViewTargeterDelegate {
public:
ViewTargeterDelegate() {}
virtual ~ViewTargeterDelegate() {}
// Returns true if the bounds of |target| intersects |rect|, where |rect|
// is in the local coodinate space of |target|. Overrides of this method by
// a View subclass should enforce DCHECK_EQ(this, target).
virtual bool DoesIntersectRect(const View* target,
const gfx::Rect& rect) const;
private:
DISALLOW_COPY_AND_ASSIGN(ViewTargeterDelegate);
};
} // namespace views
#endif // UI_VIEWS_VIEW_TARGETER_DELEGATE_H_
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