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// Copyright (c) 2006-2008 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 VIEWS_CONTROLS_HWND_VIEW_H_
#define VIEWS_CONTROLS_HWND_VIEW_H_
#include <string>
#include "views/controls/native_view_host.h"
namespace views {
/////////////////////////////////////////////////////////////////////////////
//
// HWNDView class
//
// The HWNDView class hosts a native window handle (HWND) sizing it
// according to the bounds of the view. This is useful whenever you need to
// show a UI control that has a HWND (e.g. a native windows Edit control)
// within thew View hierarchy and benefit from the sizing/layout.
//
/////////////////////////////////////////////////////////////////////////////
// TODO: Rename this to NativeViewHostWin.
class HWNDView : public NativeViewHost {
public:
HWNDView();
virtual ~HWNDView();
// Attach a window handle to this View, making the window it represents
// subject to sizing according to this View's parent container's Layout
// Manager's sizing heuristics.
//
// This object should be added to the view hierarchy before calling this
// function, which will expect the parent to be valid.
void Attach(HWND hwnd);
// Detach the attached window handle. It will no longer be updated
void Detach();
// TODO(sky): convert this to native_view().
HWND GetHWND() const { return native_view(); }
virtual void Paint(ChromeCanvas* canvas);
// Overridden from View.
virtual std::string GetClassName() const;
protected:
virtual void ViewHierarchyChanged(bool is_add, View *parent, View *child);
virtual void Focus();
// NativeHostView overrides.
virtual void InstallClip(int x, int y, int w, int h);
virtual void UninstallClip();
virtual void ShowWidget(int x, int y, int w, int h);
virtual void HideWidget();
private:
DISALLOW_COPY_AND_ASSIGN(HWNDView);
};
} // namespace views
#endif // VIEWS_CONTROLS_HWND_VIEW_H_
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