/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ /* ***** BEGIN LICENSE BLOCK ***** * Version: NPL 1.1/GPL 2.0/LGPL 2.1 * * The contents of this file are subject to the Netscape Public License * Version 1.1 (the "License"); you may not use this file except in * compliance with the License. You may obtain a copy of the License at * http://www.mozilla.org/NPL/ * * Software distributed under the License is distributed on an "AS IS" basis, * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License * for the specific language governing rights and limitations under the * License. * * The Original Code is mozilla.org code. * * The Initial Developer of the Original Code is * Netscape Communications Corporation. * Portions created by the Initial Developer are Copyright (C) 1998 * the Initial Developer. All Rights Reserved. * * Contributor(s): * * Alternatively, the contents of this file may be used under the terms of * either the GNU General Public License Version 2 or later (the "GPL"), or * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"), * in which case the provisions of the GPL or the LGPL are applicable instead * of those above. If you wish to allow use of your version of this file only * under the terms of either the GPL or the LGPL, and not to allow others to * use your version of this file under the terms of the NPL, indicate your * decision by deleting the provisions above and replace them with the notice * and other provisions required by the GPL or the LGPL. If you do not delete * the provisions above, a recipient may use your version of this file under * the terms of any one of the NPL, the GPL or the LGPL. * * ***** END LICENSE BLOCK ***** */ /* For documentation of the accessibility architecture, * see http://lxr.mozilla.org/seamonkey/source/accessible/accessible-docs.html */ #ifndef _Accessible_H_ #define _Accessible_H_ #include "OLEIDL.H" #include "OLEACC.H" #include "winable.h" #ifndef WM_GETOBJECT #define WM_GETOBJECT 0x03d #endif #include "nsCOMPtr.h" #include "nsIAccessible.h" #include "nsIAccessibleEventListener.h" #include "SimpleDOMNode.h" #include "nsIDOMElement.h" #include "nsIContent.h" #include "nsString.h" typedef LRESULT (STDAPICALLTYPE *LPFNNOTIFYWINEVENT)(DWORD event,HWND hwnd,LONG idObjectType,LONG idObject); class Accessible : public SimpleDOMNode, public IAccessible { public: // construction, destruction Accessible(nsIAccessible*, nsIDOMNode*, HWND aWin = 0); virtual ~Accessible(); public: // IUnknown methods - see iunknown.h for documentation STDMETHODIMP_(ULONG) AddRef (); STDMETHODIMP QueryInterface(REFIID, void**); STDMETHODIMP_(ULONG) Release (); // Return the registered OLE class ID of this object's CfDataObj. CLSID GetClassID() const; public: virtual /* [id][propget] */ HRESULT STDMETHODCALLTYPE get_accParent( /* [retval][out] */ IDispatch __RPC_FAR *__RPC_FAR *ppdispParent); virtual /* [id][propget] */ HRESULT STDMETHODCALLTYPE get_accChildCount( /* [retval][out] */ long __RPC_FAR *pcountChildren); virtual /* [id][propget] */ HRESULT STDMETHODCALLTYPE get_accChild( /* [in] */ VARIANT varChild, /* [retval][out] */ IDispatch __RPC_FAR *__RPC_FAR *ppdispChild); virtual /* [id][propget] */ HRESULT STDMETHODCALLTYPE get_accName( /* [optional][in] */ VARIANT varChild, /* [retval][out] */ BSTR __RPC_FAR *pszName); virtual /* [id][propget] */ HRESULT STDMETHODCALLTYPE get_accValue( /* [optional][in] */ VARIANT varChild, /* [retval][out] */ BSTR __RPC_FAR *pszValue); virtual /* [id][propget] */ HRESULT STDMETHODCALLTYPE get_accDescription( /* [optional][in] */ VARIANT varChild, /* [retval][out] */ BSTR __RPC_FAR *pszDescription); virtual /* [id][propget] */ HRESULT STDMETHODCALLTYPE get_accRole( /* [optional][in] */ VARIANT varChild, /* [retval][out] */ VARIANT __RPC_FAR *pvarRole); virtual /* [id][propget] */ HRESULT STDMETHODCALLTYPE get_accState( /* [optional][in] */ VARIANT varChild, /* [retval][out] */ VARIANT __RPC_FAR *pvarState); virtual /* [id][propget] */ HRESULT STDMETHODCALLTYPE get_accHelp( /* [optional][in] */ VARIANT varChild, /* [retval][out] */ BSTR __RPC_FAR *pszHelp); virtual /* [id][propget] */ HRESULT STDMETHODCALLTYPE get_accHelpTopic( /* [out] */ BSTR __RPC_FAR *pszHelpFile, /* [optional][in] */ VARIANT varChild, /* [retval][out] */ long __RPC_FAR *pidTopic); virtual /* [id][propget] */ HRESULT STDMETHODCALLTYPE get_accKeyboardShortcut( /* [optional][in] */ VARIANT varChild, /* [retval][out] */ BSTR __RPC_FAR *pszKeyboardShortcut); virtual /* [id][propget] */ HRESULT STDMETHODCALLTYPE get_accFocus( /* [retval][out] */ VARIANT __RPC_FAR *pvarChild); virtual /* [id][propget] */ HRESULT STDMETHODCALLTYPE get_accSelection( /* [retval][out] */ VARIANT __RPC_FAR *pvarChildren); virtual /* [id][propget] */ HRESULT STDMETHODCALLTYPE get_accDefaultAction( /* [optional][in] */ VARIANT varChild, /* [retval][out] */ BSTR __RPC_FAR *pszDefaultAction); virtual /* [id] */ HRESULT STDMETHODCALLTYPE accSelect( /* [in] */ long flagsSelect, /* [optional][in] */ VARIANT varChild); virtual /* [id] */ HRESULT STDMETHODCALLTYPE accLocation( /* [out] */ long __RPC_FAR *pxLeft, /* [out] */ long __RPC_FAR *pyTop, /* [out] */ long __RPC_FAR *pcxWidth, /* [out] */ long __RPC_FAR *pcyHeight, /* [optional][in] */ VARIANT varChild); virtual /* [id] */ HRESULT STDMETHODCALLTYPE accNavigate( /* [in] */ long navDir, /* [optional][in] */ VARIANT varStart, /* [retval][out] */ VARIANT __RPC_FAR *pvarEndUpAt); virtual /* [id] */ HRESULT STDMETHODCALLTYPE accHitTest( /* [in] */ long xLeft, /* [in] */ long yTop, /* [retval][out] */ VARIANT __RPC_FAR *pvarChild); virtual /* [id] */ HRESULT STDMETHODCALLTYPE accDoDefaultAction( /* [optional][in] */ VARIANT varChild); virtual /* [id][propput] */ HRESULT STDMETHODCALLTYPE put_accName( /* [optional][in] */ VARIANT varChild, /* [in] */ BSTR szName); virtual /* [id][propput] */ HRESULT STDMETHODCALLTYPE put_accValue( /* [optional][in] */ VARIANT varChild, /* [in] */ BSTR szValue); // ====== Methods for IDispatch - for VisualBasic bindings (not implemented) ====== STDMETHODIMP GetTypeInfoCount(UINT *p); STDMETHODIMP GetTypeInfo(UINT i, LCID lcid, ITypeInfo **ppti); STDMETHODIMP GetIDsOfNames(REFIID riid, LPOLESTR *rgszNames, UINT cNames, LCID lcid, DISPID *rgDispId); STDMETHODIMP Invoke(DISPID dispIdMember, REFIID riid, LCID lcid, WORD wFlags, DISPPARAMS *pDispParams, VARIANT *pVarResult, EXCEPINFO *pExcepInfo, UINT *puArgErr); // NT4 does not have the oleacc that defines these methods. So we define copies here that automatically // load the library only if needed. static STDMETHODIMP AccessibleObjectFromWindow(HWND hwnd,DWORD dwObjectID,REFIID riid,void **ppvObject); static STDMETHODIMP_(LRESULT) LresultFromObject(REFIID riid,WPARAM wParam,LPUNKNOWN pAcc); static STDMETHODIMP NotifyWinEvent(DWORD event,HWND hwnd,LONG idObjectType,LONG idObject); protected: nsCOMPtr mAccessible; nsCOMPtr mCachedChild; LONG mCachedIndex; virtual void GetNSAccessibleFor(VARIANT varChild, nsCOMPtr& aAcc); IAccessible *Accessible::NewAccessible(nsIAccessible *aNSAcc, nsIDOMNode *aNode, HWND aWnd); private: /// the accessible library and cached methods static HINSTANCE gmAccLib; static HINSTANCE gmUserLib; static LPFNACCESSIBLEOBJECTFROMWINDOW gmAccessibleObjectFromWindow; static LPFNLRESULTFROMOBJECT gmLresultFromObject; static LPFNNOTIFYWINEVENT gmNotifyWinEvent; }; class nsAccessibleEventMap { public: PRInt32 mId; nsCOMPtr mAccessible; }; class DocAccessible: public Accessible, public ISimpleDOMDocument { public: DocAccessible(nsIAccessible*, nsIDOMNode *, HWND aWin = 0); virtual ~DocAccessible(); STDMETHODIMP_(ULONG) AddRef (); STDMETHODIMP QueryInterface(REFIID, void**); STDMETHODIMP_(ULONG) Release (); // ISimpleDOMDocument virtual /* [id][propget] */ HRESULT STDMETHODCALLTYPE get_URL( /* [out] */ BSTR __RPC_FAR *url); virtual /* [id][propget] */ HRESULT STDMETHODCALLTYPE get_title( /* [out] */ BSTR __RPC_FAR *title); virtual /* [id][propget] */ HRESULT STDMETHODCALLTYPE get_mimeType( /* [out] */ BSTR __RPC_FAR *mimeType); virtual /* [id][propget] */ HRESULT STDMETHODCALLTYPE get_docType( /* [out] */ BSTR __RPC_FAR *docType); virtual /* [id][propget] */ HRESULT STDMETHODCALLTYPE get_nameSpaceURIForID( /* [in] */ short nameSpaceID, /* [out] */ BSTR __RPC_FAR *nameSpaceURI); virtual /* [id] */ HRESULT STDMETHODCALLTYPE put_alternateViewMediaTypes( /* [in] */ BSTR __RPC_FAR *commaSeparatedMediaTypes); }; #define MAX_LIST_SIZE 100 class RootAccessible: public DocAccessible, public nsIAccessibleEventListener { public: RootAccessible(nsIAccessible*, HWND aWin = 0); virtual ~RootAccessible(); STDMETHODIMP QueryInterface(REFIID, void**); NS_DECL_ISUPPORTS // nsIAccessibleEventListener NS_DECL_NSIACCESSIBLEEVENTLISTENER virtual PRUint32 GetIdFor(nsIAccessible* aAccessible); virtual void GetNSAccessibleFor(VARIANT varChild, nsCOMPtr& aAcc); private: // list of accessible that may have had // events fire. nsAccessibleEventMap mList[MAX_LIST_SIZE]; PRInt32 mListCount; PRInt32 mNextPos; }; #endif