/*
 * Copyright (C) 2007, 2008 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 COMPUTER, INC. ``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 COMPUTER, INC. OR
 * 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 DO_NO_IMPORTS
import "oaidl.idl";
import "ocidl.idl";
import "IWebScrollBarDelegatePrivate.idl";
#endif

interface IWebScrollBarDelegatePrivate;

// NOTE: these enums must be kept in sync with the WebCore versions
typedef enum WebScrollBarOrientation {
    WebHorizontalScrollbar = 0, 
    WebVerticalScrollbar
} WebScrollBarOrientation;

typedef enum WebScrollBarControlSize { 
    WebRegularScrollbar = 0, 
    WebSmallScrollbar, 
    WebMiniScrollbar 
} WebScrollBarControlSize;

typedef enum WebScrollDirection {
    WebScrollUp = 0,
    WebScrollDown,
    WebScrollLeft,
    WebScrollRight
} WebScrollDirection;

typedef enum WebScrollGranularity {
    WebScrollByLine = 0,
    WebScrollByPage,
    WebScrollByDocument,
    WebScrollByWheel
} WebScrollGranularity;

[
    object,
    oleautomation,
    hidden,
    uuid(6C585B08-2E4F-4594-9B90-0425E3A33FD0),
    pointer_default(unique)
]
interface IWebScrollBarPrivate : IUnknown
{
    HRESULT init([in] IWebScrollBarDelegatePrivate* delegate, [in] OLE_HANDLE containingWindow, [in] WebScrollBarOrientation orientation, [in] WebScrollBarControlSize controlSize);

    HRESULT setEnabled([in] BOOL enabled);

    HRESULT setSteps([in] int lineStep, [in] int pageStep);

    HRESULT setProportion([in] int visibleSize, [in] int totalSize);

    HRESULT setRect([in] RECT bounds);

    HRESULT setValue([in] int value);

    HRESULT value([out, retval] int* value);

    HRESULT paint([in] HDC dc, [in] RECT damageRect);

    HRESULT frameGeometry([out, retval] RECT* bounds);

    HRESULT width([out, retval] int* w);

    HRESULT height([out, retval] int* h);

    HRESULT requestedWidth([out, retval] int* w);

    HRESULT requestedHeight([out, retval] int* h);

    HRESULT handleMouseEvent([in] OLE_HANDLE hwnd, [in] UINT msg, [in] WPARAM wParam, [in] LPARAM lParam);

    HRESULT scroll([in] WebScrollDirection direction, [in] WebScrollGranularity granularity, [in] float multiplier);
}
