/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ /* vim: set ts=2 et sw=2 tw=80: */ /* This Source Code Form is subject to the terms of the Mozilla Public * License, v. 2.0. If a copy of the MPL was not distributed with this * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ #ifndef mozilla_a11y_AccessibleWrap_h_ #define mozilla_a11y_AccessibleWrap_h_ #include "nsCOMPtr.h" #include "Accessible.h" #include "Accessible2.h" #include "ia2Accessible.h" #include "ia2AccessibleComponent.h" #include "ia2AccessibleHyperlink.h" #include "ia2AccessibleValue.h" #ifdef __GNUC__ // Inheriting from both XPCOM and MSCOM interfaces causes a lot of warnings // about virtual functions being hidden by each other. This is done by // design, so silence the warning. #pragma GCC diagnostic ignored "-Woverloaded-virtual" #endif namespace mozilla { namespace a11y { class AccessibleWrap : public Accessible, public ia2Accessible, public ia2AccessibleComponent, public ia2AccessibleHyperlink, public ia2AccessibleValue { public: // construction, destruction AccessibleWrap(nsIContent* aContent, DocAccessible* aDoc) : Accessible(aContent, aDoc) { } // nsISupports NS_DECL_ISUPPORTS_INHERITED public: // IUnknown methods - see iunknown.h for documentation STDMETHODIMP QueryInterface(REFIID, void**); // Return the registered OLE class ID of this object's CfDataObj. CLSID GetClassID() const; public: // COM interface IAccessible 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); // IDispatch (support of scripting languages like VB) virtual HRESULT STDMETHODCALLTYPE GetTypeInfoCount(UINT *pctinfo); virtual HRESULT STDMETHODCALLTYPE GetTypeInfo(UINT iTInfo, LCID lcid, ITypeInfo **ppTInfo); virtual HRESULT STDMETHODCALLTYPE GetIDsOfNames(REFIID riid, LPOLESTR *rgszNames, UINT cNames, LCID lcid, DISPID *rgDispId); virtual HRESULT STDMETHODCALLTYPE Invoke(DISPID dispIdMember, REFIID riid, LCID lcid, WORD wFlags, DISPPARAMS *pDispParams, VARIANT *pVarResult, EXCEPINFO *pExcepInfo, UINT *puArgErr); // Accessible virtual nsresult HandleAccEvent(AccEvent* aEvent); // Helper methods static int32_t GetChildIDFor(Accessible* aAccessible); static HWND GetHWNDFor(Accessible* aAccessible); /** * System caret support: update the Windows caret position. * The system caret works more universally than the MSAA caret * For example, Window-Eyes, JAWS, ZoomText and Windows Tablet Edition use it * We will use an invisible system caret. * Gecko is still responsible for drawing its own caret */ void UpdateSystemCaretFor(Accessible* aAccessible); /** * Find an accessible by the given child ID in cached documents. */ Accessible* GetXPAccessibleFor(const VARIANT& aVarChild); virtual void GetNativeInterface(void **aOutAccessible) MOZ_OVERRIDE; static IDispatch* NativeAccessible(Accessible* aAccessible); protected: virtual ~AccessibleWrap() { } /** * Creates ITypeInfo for LIBID_Accessibility if it's needed and returns it. */ static ITypeInfo* GetTI(LCID lcid); static ITypeInfo* gTypeInfo; enum navRelations { NAVRELATION_CONTROLLED_BY = 0x1000, NAVRELATION_CONTROLLER_FOR = 0x1001, NAVRELATION_LABEL_FOR = 0x1002, NAVRELATION_LABELLED_BY = 0x1003, NAVRELATION_MEMBER_OF = 0x1004, NAVRELATION_NODE_CHILD_OF = 0x1005, NAVRELATION_FLOWS_TO = 0x1006, NAVRELATION_FLOWS_FROM = 0x1007, NAVRELATION_SUBWINDOW_OF = 0x1008, NAVRELATION_EMBEDS = 0x1009, NAVRELATION_EMBEDDED_BY = 0x100a, NAVRELATION_POPUP_FOR = 0x100b, NAVRELATION_PARENT_WINDOW_OF = 0x100c, NAVRELATION_DEFAULT_BUTTON = 0x100d, NAVRELATION_DESCRIBED_BY = 0x100e, NAVRELATION_DESCRIPTION_FOR = 0x100f, NAVRELATION_NODE_PARENT_OF = 0x1010, NAVRELATION_CONTAINING_DOCUMENT = 0x1011, NAVRELATION_CONTAINING_TAB_PANE = 0x1012, NAVRELATION_CONTAINING_APPLICATION = 0x1014 }; }; } // namespace a11y } // namespace mozilla #ifdef XP_WIN // Undo the windows.h damage #undef GetMessage #undef CreateEvent #undef GetClassName #undef GetBinaryType #undef RemoveDirectory #endif #endif