1 /* 2 * Copyright (C) 2007 Apple Inc. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 1. Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * 2. Redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution. 12 * 13 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY 14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR 17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY 21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 24 */ 25 26 #ifndef WebScrollBar_h 27 #define WebScrollBar_h 28 29 #include "WebKit.h" 30 31 #include <wtf/RefPtr.h> 32 #include <wtf/OwnPtr.h> 33 34 #pragma warning(push, 0) 35 #include <WebCore/COMPtr.h> 36 #include <WebCore/Scrollbar.h> 37 #include <WebCore/ScrollbarClient.h> 38 #pragma warning(pop) 39 40 namespace WebCore { 41 class Scrollbar; 42 } 43 44 using namespace WebCore; 45 46 class WebScrollBar : public IWebScrollBarPrivate, ScrollbarClient 47 { 48 public: 49 static WebScrollBar* createInstance(); 50 protected: 51 WebScrollBar(); 52 ~WebScrollBar(); 53 54 public: 55 // IUnknown 56 virtual HRESULT STDMETHODCALLTYPE QueryInterface(REFIID riid, void** ppvObject); 57 virtual ULONG STDMETHODCALLTYPE AddRef(void); 58 virtual ULONG STDMETHODCALLTYPE Release(void); 59 60 // IWebScrollBarPrivate 61 virtual HRESULT STDMETHODCALLTYPE init( 62 /* [in] */ IWebScrollBarDelegatePrivate* delegate, 63 /* [in] */ OLE_HANDLE containingWindow, 64 /* [in] */ WebScrollBarOrientation orientation, 65 /* [in] */ WebScrollBarControlSize controlSize); 66 67 virtual HRESULT STDMETHODCALLTYPE setEnabled( 68 /* [in] */ BOOL enabled); 69 70 virtual HRESULT STDMETHODCALLTYPE setSteps( 71 /* [in] */ int lineStep, 72 /* [in] */ int pageStep); 73 74 virtual HRESULT STDMETHODCALLTYPE setProportion( 75 /* [in] */ int visibleSize, 76 /* [in] */ int totalSize); 77 78 virtual HRESULT STDMETHODCALLTYPE setRect( 79 /* [in] */ RECT bounds); 80 81 virtual HRESULT STDMETHODCALLTYPE setValue( 82 /* [in] */ int value); 83 84 virtual HRESULT STDMETHODCALLTYPE value( 85 /* [retval][out] */ int* value); 86 87 virtual HRESULT STDMETHODCALLTYPE paint( 88 /* [in] */ HDC dc, 89 /* [in] */ RECT damageRect); 90 91 virtual HRESULT STDMETHODCALLTYPE frameRect( 92 /* [retval][out] */ RECT* bounds); 93 94 virtual HRESULT STDMETHODCALLTYPE width( 95 /* [retval][out] */ int* w); 96 97 virtual HRESULT STDMETHODCALLTYPE height( 98 /* [retval][out] */ int* h); 99 100 virtual HRESULT STDMETHODCALLTYPE requestedWidth( 101 /* [retval][out] */ int* w); 102 103 virtual HRESULT STDMETHODCALLTYPE requestedHeight( 104 /* [retval][out] */ int* h); 105 106 virtual HRESULT STDMETHODCALLTYPE handleMouseEvent( 107 /* [in] */ OLE_HANDLE window, 108 /* [in] */ UINT msg, 109 /* [in] */ WPARAM wParam, 110 /* [in] */ LPARAM lParam); 111 112 virtual HRESULT STDMETHODCALLTYPE scroll( 113 /* [in] */ WebScrollDirection direction, 114 /* [in] */ WebScrollGranularity granularity, 115 /* [in] */ float multiplier); 116 117 protected: 118 // ScrollbarClient 119 virtual void valueChanged(Scrollbar*); 120 virtual void invalidateScrollbarRect(Scrollbar*, const IntRect&); 121 122 // FIXME: We should provide a way to set this value. isActive()123 virtual bool isActive() const { return true; } 124 scrollbarCornerPresent()125 virtual bool scrollbarCornerPresent() const { return false; } 126 127 ULONG m_refCount; 128 HWND m_containingWindow; 129 RefPtr<WebCore::Scrollbar> m_scrollBar; 130 COMPtr<IWebScrollBarDelegatePrivate> m_delegate; 131 }; 132 133 #endif 134