зеркало из https://github.com/mozilla/gecko-dev.git
228 строки
9.0 KiB
C++
228 строки
9.0 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef mozilla_a11y_MsaaAccessible_h_
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#define mozilla_a11y_MsaaAccessible_h_
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#include "ia2Accessible.h"
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#include "ia2AccessibleComponent.h"
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#include "ia2AccessibleHyperlink.h"
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#include "ia2AccessibleValue.h"
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#include "IUnknownImpl.h"
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#include "mozilla/a11y/MsaaIdGenerator.h"
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#include "mozilla/dom/ipc/IdType.h"
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#include "nsXULAppAPI.h"
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namespace mozilla {
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namespace a11y {
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class Accessible;
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class AccessibleWrap;
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class LocalAccessible;
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class sdnAccessible;
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class MsaaAccessible : public ia2Accessible,
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public ia2AccessibleComponent,
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public ia2AccessibleHyperlink,
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public ia2AccessibleValue {
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public:
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static MsaaAccessible* Create(Accessible* aAcc);
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Accessible* Acc() { return mAcc; }
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AccessibleWrap* LocalAcc();
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uint32_t GetExistingID() const { return mID; }
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static const uint32_t kNoID = 0;
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void SetID(uint32_t aID);
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static int32_t GetChildIDFor(Accessible* aAccessible);
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static uint32_t GetContentProcessIdFor(dom::ContentParentId aIPCContentId);
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static void ReleaseContentProcessIdFor(dom::ContentParentId aIPCContentId);
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static void AssignChildIDTo(NotNull<sdnAccessible*> aSdnAcc);
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static void ReleaseChildID(NotNull<sdnAccessible*> aSdnAcc);
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static HWND GetHWNDFor(Accessible* aAccessible);
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static void FireWinEvent(Accessible* aTarget, uint32_t aEventType);
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/**
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* Find an accessible by the given child ID in cached documents.
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*/
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[[nodiscard]] already_AddRefed<IAccessible> GetIAccessibleFor(
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const VARIANT& aVarChild, bool* aIsDefunct);
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/**
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* Associate a COM object with this MsaaAccessible so it will be disconnected
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* from remote clients when this MsaaAccessible shuts down.
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* This should only be called with separate COM objects with a different
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* IUnknown to this MsaaAccessible; e.g. IAccessibleRelation.
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*/
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void AssociateCOMObjectForDisconnection(IUnknown* aObject) {
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// We only need to track these for content processes because COM garbage
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// collection is disabled there.
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if (XRE_IsContentProcess()) {
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mAssociatedCOMObjectsForDisconnection.AppendElement(aObject);
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}
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}
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void MsaaShutdown();
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static IDispatch* NativeAccessible(Accessible* aAccessible);
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static MsaaAccessible* GetFrom(Accessible* aAcc);
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DECL_IUNKNOWN
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// IAccessible
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virtual /* [id][propget] */ HRESULT STDMETHODCALLTYPE get_accParent(
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/* [retval][out] */ IDispatch __RPC_FAR* __RPC_FAR* ppdispParent)
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override;
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virtual /* [id][propget] */ HRESULT STDMETHODCALLTYPE get_accChildCount(
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/* [retval][out] */ long __RPC_FAR* pcountChildren) override;
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virtual /* [id][propget] */ HRESULT STDMETHODCALLTYPE get_accChild(
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/* [in] */ VARIANT varChild,
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/* [retval][out] */ IDispatch __RPC_FAR* __RPC_FAR* ppdispChild) override;
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virtual /* [id][propget] */ HRESULT STDMETHODCALLTYPE get_accName(
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/* [optional][in] */ VARIANT varChild,
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/* [retval][out] */ BSTR __RPC_FAR* pszName) override;
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virtual /* [id][propget] */ HRESULT STDMETHODCALLTYPE get_accValue(
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/* [optional][in] */ VARIANT varChild,
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/* [retval][out] */ BSTR __RPC_FAR* pszValue) override;
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virtual /* [id][propget] */ HRESULT STDMETHODCALLTYPE get_accDescription(
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/* [optional][in] */ VARIANT varChild,
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/* [retval][out] */ BSTR __RPC_FAR* pszDescription) override;
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virtual /* [id][propget] */ HRESULT STDMETHODCALLTYPE get_accRole(
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/* [optional][in] */ VARIANT varChild,
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/* [retval][out] */ VARIANT __RPC_FAR* pvarRole) override;
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virtual /* [id][propget] */ HRESULT STDMETHODCALLTYPE get_accState(
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/* [optional][in] */ VARIANT varChild,
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/* [retval][out] */ VARIANT __RPC_FAR* pvarState) override;
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virtual /* [id][propget] */ HRESULT STDMETHODCALLTYPE get_accHelp(
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/* [optional][in] */ VARIANT varChild,
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/* [retval][out] */ BSTR __RPC_FAR* pszHelp) override;
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virtual /* [id][propget] */ HRESULT STDMETHODCALLTYPE get_accHelpTopic(
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/* [out] */ BSTR __RPC_FAR* pszHelpFile,
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/* [optional][in] */ VARIANT varChild,
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/* [retval][out] */ long __RPC_FAR* pidTopic) override;
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virtual /* [id][propget] */ HRESULT STDMETHODCALLTYPE get_accKeyboardShortcut(
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/* [optional][in] */ VARIANT varChild,
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/* [retval][out] */ BSTR __RPC_FAR* pszKeyboardShortcut) override;
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virtual /* [id][propget] */ HRESULT STDMETHODCALLTYPE get_accFocus(
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/* [retval][out] */ VARIANT __RPC_FAR* pvarChild) override;
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virtual /* [id][propget] */ HRESULT STDMETHODCALLTYPE get_accSelection(
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/* [retval][out] */ VARIANT __RPC_FAR* pvarChildren) override;
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virtual /* [id][propget] */ HRESULT STDMETHODCALLTYPE get_accDefaultAction(
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/* [optional][in] */ VARIANT varChild,
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/* [retval][out] */ BSTR __RPC_FAR* pszDefaultAction) override;
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virtual /* [id] */ HRESULT STDMETHODCALLTYPE accSelect(
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/* [in] */ long flagsSelect,
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/* [optional][in] */ VARIANT varChild) override;
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virtual /* [id] */ HRESULT STDMETHODCALLTYPE accLocation(
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/* [out] */ long __RPC_FAR* pxLeft,
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/* [out] */ long __RPC_FAR* pyTop,
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/* [out] */ long __RPC_FAR* pcxWidth,
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/* [out] */ long __RPC_FAR* pcyHeight,
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/* [optional][in] */ VARIANT varChild) override;
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virtual /* [id] */ HRESULT STDMETHODCALLTYPE accNavigate(
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/* [in] */ long navDir,
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/* [optional][in] */ VARIANT varStart,
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/* [retval][out] */ VARIANT __RPC_FAR* pvarEndUpAt) override;
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virtual /* [id] */ HRESULT STDMETHODCALLTYPE accHitTest(
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/* [in] */ long xLeft,
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/* [in] */ long yTop,
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/* [retval][out] */ VARIANT __RPC_FAR* pvarChild) override;
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virtual /* [id] */ HRESULT STDMETHODCALLTYPE accDoDefaultAction(
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/* [optional][in] */ VARIANT varChild) override;
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virtual /* [id][propput] */ HRESULT STDMETHODCALLTYPE put_accName(
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/* [optional][in] */ VARIANT varChild,
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/* [in] */ BSTR szName) override;
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virtual /* [id][propput] */ HRESULT STDMETHODCALLTYPE put_accValue(
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/* [optional][in] */ VARIANT varChild,
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/* [in] */ BSTR szValue) override;
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// IDispatch (support of scripting languages like VB)
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virtual HRESULT STDMETHODCALLTYPE GetTypeInfoCount(UINT* pctinfo) override;
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virtual HRESULT STDMETHODCALLTYPE GetTypeInfo(UINT iTInfo, LCID lcid,
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ITypeInfo** ppTInfo) override;
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virtual HRESULT STDMETHODCALLTYPE GetIDsOfNames(REFIID riid,
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LPOLESTR* rgszNames,
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UINT cNames, LCID lcid,
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DISPID* rgDispId) override;
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virtual HRESULT STDMETHODCALLTYPE Invoke(DISPID dispIdMember, REFIID riid,
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LCID lcid, WORD wFlags,
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DISPPARAMS* pDispParams,
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VARIANT* pVarResult,
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EXCEPINFO* pExcepInfo,
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UINT* puArgErr) override;
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protected:
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explicit MsaaAccessible(Accessible* aAcc);
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virtual ~MsaaAccessible();
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Accessible* mAcc;
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uint32_t mID;
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static MsaaIdGenerator sIDGen;
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HRESULT
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ResolveChild(const VARIANT& aVarChild, IAccessible** aOutInterface);
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enum navRelations {
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NAVRELATION_CONTROLLED_BY = 0x1000,
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NAVRELATION_CONTROLLER_FOR = 0x1001,
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NAVRELATION_LABEL_FOR = 0x1002,
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NAVRELATION_LABELLED_BY = 0x1003,
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NAVRELATION_MEMBER_OF = 0x1004,
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NAVRELATION_NODE_CHILD_OF = 0x1005,
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NAVRELATION_FLOWS_TO = 0x1006,
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NAVRELATION_FLOWS_FROM = 0x1007,
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NAVRELATION_SUBWINDOW_OF = 0x1008,
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NAVRELATION_EMBEDS = 0x1009,
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NAVRELATION_EMBEDDED_BY = 0x100a,
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NAVRELATION_POPUP_FOR = 0x100b,
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NAVRELATION_PARENT_WINDOW_OF = 0x100c,
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NAVRELATION_DEFAULT_BUTTON = 0x100d,
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NAVRELATION_DESCRIBED_BY = 0x100e,
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NAVRELATION_DESCRIPTION_FOR = 0x100f,
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NAVRELATION_NODE_PARENT_OF = 0x1010,
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NAVRELATION_CONTAINING_DOCUMENT = 0x1011,
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NAVRELATION_CONTAINING_TAB_PANE = 0x1012,
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NAVRELATION_CONTAINING_WINDOW = 0x1013,
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NAVRELATION_CONTAINING_APPLICATION = 0x1014,
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NAVRELATION_DETAILS = 0x1015,
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NAVRELATION_DETAILS_FOR = 0x1016,
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NAVRELATION_ERROR = 0x1017,
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NAVRELATION_ERROR_FOR = 0x1018,
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NAVRELATION_LINKS_TO = 0x1019
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};
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private:
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/**
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* Find a remote accessible by the given child ID.
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*/
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[[nodiscard]] already_AddRefed<IAccessible> GetRemoteIAccessibleFor(
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const VARIANT& aVarChild);
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nsTArray<RefPtr<IUnknown>> mAssociatedCOMObjectsForDisconnection;
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/**
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* Creates ITypeInfo for LIBID_Accessibility if it's needed and returns it.
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*/
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static ITypeInfo* GetTI(LCID lcid);
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static ITypeInfo* gTypeInfo;
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};
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} // namespace a11y
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} // namespace mozilla
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#ifdef XP_WIN
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// Undo the windows.h damage
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# undef GetMessage
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# undef CreateEvent
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# undef GetClassName
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# undef GetBinaryType
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# undef RemoveDirectory
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#endif
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#endif
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