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// 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.
#ifndef UI_VIEWS_CONTROLS_RESIZE_AREA_H_
#define UI_VIEWS_CONTROLS_RESIZE_AREA_H_
#pragma once
#include <string>
#include "ui/views/view.h"
namespace views {
class ResizeAreaDelegate;
////////////////////////////////////////////////////////////////////////////////
//
// An invisible area that acts like a horizontal resizer.
//
////////////////////////////////////////////////////////////////////////////////
class VIEWS_EXPORT ResizeArea : public View {
public:
static const char kViewClassName[];
explicit ResizeArea(ResizeAreaDelegate* delegate);
virtual ~ResizeArea();
// Overridden from views::View:
virtual std::string GetClassName() const OVERRIDE;
virtual gfx::NativeCursor GetCursor(const views::MouseEvent& event) OVERRIDE;
virtual bool OnMousePressed(const views::MouseEvent& event) OVERRIDE;
virtual bool OnMouseDragged(const views::MouseEvent& event) OVERRIDE;
virtual void OnMouseReleased(const views::MouseEvent& event) OVERRIDE;
virtual void OnMouseCaptureLost() OVERRIDE;
virtual void GetAccessibleState(ui::AccessibleViewState* state) OVERRIDE;
private:
// Report the amount the user resized by to the delegate, accounting for
// directionality.
void ReportResizeAmount(int resize_amount, bool last_update);
// The delegate to notify when we have updates.
ResizeAreaDelegate* delegate_;
// The mouse position at start (in screen coordinates).
int initial_position_;
DISALLOW_COPY_AND_ASSIGN(ResizeArea);
};
} // namespace views
#endif // UI_VIEWS_CONTROLS_RESIZE_AREA_H_