/*

 * Copyright (C) 2010 Apple Inc. All rights reserved.

 *

 * Redistribution and use in source and binary forms, with or without

 * modification, are permitted provided that the following conditions

 * are met:

 * 1. Redistributions of source code must retain the above copyright

 *    notice, this list of conditions and the following disclaimer.

 * 2. Redistributions in binary form must reproduce the above copyright

 *    notice, this list of conditions and the following disclaimer in the

 *    documentation and/or other materials provided with the distribution.

 *

 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''

 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,

 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR

 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS

 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR

 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF

 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS

 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN

 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)

 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF

 * THE POSSIBILITY OF SUCH DAMAGE.

 */

#ifndef WebView_h

#define WebView_h

#include "PageClient.h"

#include "WebPageProxy.h"

#include <WebCore/WindowMessageListener.h>

#include <wtf/PassRefPtr.h>

#include <wtf/RefCounted.h>

#include <wtf/RefPtr.h>

namespace WebCore {

    class String;

}

namespace WebKit {

class DrawingAreaProxy;

class WebPageNamespace;

class WebView : public RefCounted<WebView>, public PageClient, WebCore::WindowMessageListener {

public:

    static PassRefPtr<WebView> create(RECT rect, WebPageNamespace* pageNamespace, HWND hostWindow)

    {

        return adoptRef(new WebView(rect, pageNamespace, hostWindow));

    }

    ~WebView();

    RECT rect() const { return m_rect; }

    HWND window() const { return m_window; }

    HWND hostWindow() const { return m_hostWindow; }

    void setHostWindow(HWND);

    void windowAncestryDidChange();

    WebPageProxy* page() const { return m_page.get(); }

private:

    WebView(RECT, WebPageNamespace*, HWND hostWindow);

    static bool registerWebViewWindowClass();

    static LRESULT CALLBACK WebViewWndProc(HWND, UINT, WPARAM, LPARAM);

    LRESULT wndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam);

    LRESULT onMouseEvent(HWND hWnd, UINT message, WPARAM, LPARAM, bool& handled);

    LRESULT onWheelEvent(HWND hWnd, UINT message, WPARAM, LPARAM, bool& handled);

    LRESULT onKeyEvent(HWND hWnd, UINT message, WPARAM, LPARAM, bool& handled);

    LRESULT onPaintEvent(HWND hWnd, UINT message, WPARAM, LPARAM, bool& handled);

    LRESULT onSizeEvent(HWND hWnd, UINT message, WPARAM, LPARAM, bool& handled);

    LRESULT onWindowPositionChangedEvent(HWND hWnd, UINT message, WPARAM, LPARAM, bool& handled);

    LRESULT onSetFocusEvent(HWND hWnd, UINT message, WPARAM, LPARAM, bool& handled);

    LRESULT onKillFocusEvent(HWND hWnd, UINT message, WPARAM, LPARAM, bool& handled);

    LRESULT onTimerEvent(HWND hWnd, UINT message, WPARAM, LPARAM, bool& handled);

    LRESULT onShowWindowEvent(HWND hWnd, UINT message, WPARAM, LPARAM, bool& handled);

    LRESULT onSetCursor(HWND hWnd, UINT message, WPARAM, LPARAM, bool& handled);

    bool isActive();

    void updateActiveState();

    void updateActiveStateSoon();

    void initializeToolTipWindow();

    void startTrackingMouseLeave();

    void stopTrackingMouseLeave();

    void close();

    // PageClient

    virtual void processDidExit();

    virtual void processDidRevive();

    virtual void takeFocus(bool direction);

    virtual void toolTipChanged(const WebCore::String&, const WebCore::String&);

    virtual void setCursor(const WebCore::Cursor&);

#if USE(ACCELERATED_COMPOSITING)

    virtual void pageDidEnterAcceleratedCompositing();

    virtual void pageDidLeaveAcceleratedCompositing();

#endif

    // WebCore::WindowMessageListener

    virtual void windowReceivedMessage(HWND, UINT message, WPARAM, LPARAM);

    RECT m_rect;

    HWND m_window;

    HWND m_hostWindow;

    HWND m_topLevelParentWindow;

    HWND m_toolTipWindow;

    HCURSOR m_lastCursorSet;

    bool m_trackingMouseLeave;

    bool m_isBeingDestroyed;

    RefPtr<WebPageProxy> m_page;

};

} // namespace WebKit

#endif // WebView_h