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Bug 762770 - implement IAccessibleEx, rkhuey

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This commit is contained in:
Mark Capella 2012-07-06 12:59:13 -04:00
parent 6013f3dfea
commit 54ad98b7d8
15 changed files with 470 additions and 127 deletions
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4
accessible/build/Makefile.in
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@ -32,6 +32,10 @@ SHARED_LIBRARY_LIBS = \
../src/xforms/$(LIB_PREFIX)accessibility_xforms_s.$(LIB_SUFFIX) \
$(NULL)
ifeq ($(MOZ_WIDGET_TOOLKIT),windows)
SHARED_LIBRARY_LIBS += ../src/windows/uia/$(LIB_PREFIX)accessibility_toolkit_uia_s.$(LIB_SUFFIX)
endif
ifdef MOZ_XUL
SHARED_LIBRARY_LIBS += ../src/xul/$(LIB_PREFIX)accessibility_xul_s.$(LIB_SUFFIX)
endif

5
accessible/src/Makefile.in
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@ -14,7 +14,10 @@ ifeq ($(MOZ_WIDGET_TOOLKIT),gtk2)
PLATFORM_DIR = atk
else
ifeq ($(MOZ_WIDGET_TOOLKIT),windows)
PLATFORM_DIR = msaa
PLATFORM_DIR = \
msaa \
windows \
$(null)
else
ifeq ($(MOZ_WIDGET_TOOLKIT),cocoa)
PLATFORM_DIR += mac

2
accessible/src/mac/Makefile.in
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@ -14,8 +14,6 @@ LIBRARY_NAME = accessibility_toolkit_s
EXPORT_LIBRARY = ..
LIBXUL_LIBRARY = 1
CMMSRCS = \
AccessibleWrap.mm \
ApplicationAccessibleWrap.mm \

45
accessible/src/msaa/AccessibleWrap.cpp
View File

@ -8,22 +8,17 @@
#include "Compatibility.h"
#include "DocAccessible-inl.h"
#include "EnumVariant.h"
#include "ia2AccessibleRelation.h"
#include "nsAccUtils.h"
#include "nsCoreUtils.h"
#include "nsIAccessibleEvent.h"
#include "nsIAccessibleRelation.h"
#include "nsWinUtils.h"
#include "Relation.h"
#include "Role.h"
#include "States.h"
#include "ia2AccessibleRelation.h"
#include "nsIAccessibleEvent.h"
#include "nsIAccessibleRelation.h"
#include "Accessible2_i.c"
#include "AccessibleRole.h"
#include "AccessibleStates.h"
#include "RootAccessible.h"
#include "States.h"
#include "uiaRawElmProvider.h"
#ifdef DEBUG
#include "Logging.h"
@ -40,7 +35,11 @@
#include "nsIViewManager.h"
#include "nsEventMap.h"
#include "nsArrayUtils.h"
#include "mozilla/Preferences.h"
#include "Accessible2_i.c"
#include "AccessibleRole.h"
#include "AccessibleStates.h"
#include "OLEACC.H"
using namespace mozilla;
@ -122,6 +121,32 @@ __try {
return S_OK;
}
////////////////////////////////////////////////////////////////////////////////
// IServiceProvider
STDMETHODIMP
AccessibleWrap::QueryService(REFGUID aGuidService, REFIID aIID,
void** aInstancePtr)
{
if (!aInstancePtr)
return E_INVALIDARG;
*aInstancePtr = NULL;
// UIA IAccessibleEx
if (aGuidService == IID_IAccessibleEx &&
Preferences::GetBool("accessibility.uia.enable")) {
IAccessibleEx* accEx = new uiaRawElmProvider(this);
HRESULT hr = accEx->QueryInterface(aIID, aInstancePtr);
if (FAILED(hr))
delete accEx;
return hr;
}
return nsAccessNodeWrap::QueryService(aGuidService, aIID, aInstancePtr);
}
//-----------------------------------------------------
// IAccessible methods
//-----------------------------------------------------

132
accessible/src/msaa/AccessibleWrap.h
View File

@ -17,51 +17,104 @@
#include "ia2AccessibleHyperlink.h"
#include "CAccessibleValue.h"
#define DECL_IUNKNOWN_INHERITED \
public: \
STDMETHODIMP QueryInterface(REFIID, void**); \
#define DECL_IUNKNOWN \
public: \
virtual HRESULT STDMETHODCALLTYPE QueryInterface(REFIID, void**); \
virtual ULONG STDMETHODCALLTYPE AddRef() MOZ_FINAL \
{ return ++mRefCnt; } \
virtual ULONG STDMETHODCALLTYPE Release() MOZ_FINAL \
{ \
mRefCnt--; \
if (mRefCnt) \
return mRefCnt; \
\
delete this; \
return 0; \
} \
private: \
ULONG mRefCnt; \
public:
#define IMPL_IUNKNOWN_QUERY_HEAD(Class) \
STDMETHODIMP \
Class::QueryInterface(REFIID iid, void** ppv) \
{ \
HRESULT hr = E_NOINTERFACE; \
*ppv = NULL; \
#define DECL_IUNKNOWN_INHERITED \
public: \
virtual HRESULT STDMETHODCALLTYPE QueryInterface(REFIID, void**); \
#define IMPL_IUNKNOWN_QUERY_TAIL \
return hr; \
} \
#define IMPL_IUNKNOWN_QUERY_HEAD(Class) \
STDMETHODIMP \
Class::QueryInterface(REFIID aIID, void** aInstancePtr) \
{ \
__try { \
if (!aInstancePtr) \
return E_INVALIDARG; \
*aInstancePtr = NULL; \
\
HRESULT hr = E_NOINTERFACE;
#define IMPL_IUNKNOWN_QUERY_ENTRY(Class) \
hr = Class::QueryInterface(iid, ppv); \
if (SUCCEEDED(hr)) \
return hr; \
#define IMPL_IUNKNOWN_QUERY_TAIL \
return hr; \
} __except(nsAccessNodeWrap::FilterA11yExceptions(::GetExceptionCode(), \
GetExceptionInformation())) { } \
return E_NOINTERFACE; \
}
#define IMPL_IUNKNOWN_QUERY_ENTRY_COND(Class, Cond) \
if (Cond) { \
hr = Class::QueryInterface(iid, ppv); \
if (SUCCEEDED(hr)) \
return hr; \
} \
#define IMPL_IUNKNOWN_QUERY_IFACE(Iface) \
if (aIID == IID_##Iface) { \
*aInstancePtr = static_cast<Iface*>(this); \
AddRef(); \
return S_OK; \
}
#define IMPL_IUNKNOWN_INHERITED0(Class, Super) \
IMPL_IUNKNOWN_QUERY_HEAD(Class) \
IMPL_IUNKNOWN_QUERY_ENTRY(Super) \
IMPL_IUNKNOWN_QUERY_TAIL \
#define IMPL_IUNKNOWN_QUERY_IFACE_AMBIGIOUS(Iface, aResolveIface) \
if (aIID == IID_##Iface) { \
*aInstancePtr = static_cast<Iface*>(static_cast<aResolveIface*>(this)); \
AddRef(); \
return S_OK; \
}
#define IMPL_IUNKNOWN_INHERITED1(Class, Super, I1) \
IMPL_IUNKNOWN_QUERY_HEAD(Class) \
IMPL_IUNKNOWN_QUERY_ENTRY(I1); \
IMPL_IUNKNOWN_QUERY_ENTRY(Super) \
IMPL_IUNKNOWN_QUERY_TAIL \
#define IMPL_IUNKNOWN_QUERY_CLASS(Class) \
hr = Class::QueryInterface(aIID, aInstancePtr); \
if (SUCCEEDED(hr)) \
return hr;
#define IMPL_IUNKNOWN_INHERITED2(Class, Super, I1, I2) \
IMPL_IUNKNOWN_QUERY_HEAD(Class) \
IMPL_IUNKNOWN_QUERY_ENTRY(I1); \
IMPL_IUNKNOWN_QUERY_ENTRY(I2); \
IMPL_IUNKNOWN_QUERY_ENTRY(Super) \
IMPL_IUNKNOWN_QUERY_TAIL \
#define IMPL_IUNKNOWN_QUERY_CLASS_COND(Class, Cond) \
if (Cond) { \
hr = Class::QueryInterface(aIID, aInstancePtr); \
if (SUCCEEDED(hr)) \
return hr; \
}
#define IMPL_IUNKNOWN_QUERY_AGGR_COND(Member, Cond) \
if (Cond) { \
hr = Member->QueryInterface(aIID, aInstancePtr); \
if (SUCCEEDED(hr)) \
return hr; \
}
#define IMPL_IUNKNOWN1(Class, I1) \
IMPL_IUNKNOWN_QUERY_HEAD(Class) \
IMPL_IUNKNOWN_QUERY_IFACE(I1); \
IMPL_IUNKNOWN_QUERY_IFACE(IUnknown); \
IMPL_IUNKNOWN_QUERY_TAIL \
#define IMPL_IUNKNOWN2(Class, I1, I2) \
IMPL_IUNKNOWN_QUERY_HEAD(Class) \
IMPL_IUNKNOWN_QUERY_IFACE(I1); \
IMPL_IUNKNOWN_QUERY_IFACE(I2); \
IMPL_IUNKNOWN_QUERY_IFACE_AMBIGIOUS(IUnknown, I1); \
IMPL_IUNKNOWN_QUERY_TAIL \
#define IMPL_IUNKNOWN_INHERITED1(Class, Super0, Super1) \
IMPL_IUNKNOWN_QUERY_HEAD(Class) \
IMPL_IUNKNOWN_QUERY_CLASS(Super1); \
IMPL_IUNKNOWN_QUERY_CLASS(Super0) \
IMPL_IUNKNOWN_QUERY_TAIL \
#define IMPL_IUNKNOWN_INHERITED2(Class, Super0, Super1, Super2) \
IMPL_IUNKNOWN_QUERY_HEAD(Class) \
IMPL_IUNKNOWN_QUERY_CLASS(Super1); \
IMPL_IUNKNOWN_QUERY_CLASS(Super2); \
IMPL_IUNKNOWN_QUERY_CLASS(Super0) \
IMPL_IUNKNOWN_QUERY_TAIL
class AccessibleWrap : public Accessible,
public ia2AccessibleComponent,
@ -83,6 +136,11 @@ public: // construction, destruction
// Return the registered OLE class ID of this object's CfDataObj.
CLSID GetClassID() const;
// IServiceProvider
virtual HRESULT STDMETHODCALLTYPE QueryService(REFGUID aGuidService,
REFIID aIID,
void** aInstancePtr);
public: // COM interface IAccessible
virtual /* [id][propget] */ HRESULT STDMETHODCALLTYPE get_accParent(
/* [retval][out] */ IDispatch __RPC_FAR *__RPC_FAR *ppdispParent);

50
accessible/src/msaa/EnumVariant.cpp
View File

@ -13,51 +13,11 @@ using namespace mozilla::a11y;
// ChildrenEnumVariant
////////////////////////////////////////////////////////////////////////////////
STDMETHODIMP
ChildrenEnumVariant::QueryInterface(REFIID aIID, void** aObject)
{
__try {
if (!aObject)
return E_INVALIDARG;
if (aIID == IID_IEnumVARIANT) {
*aObject = static_cast<IEnumVARIANT*>(this);
AddRef();
return S_OK;
}
if (aIID == IID_IUnknown) {
*aObject = static_cast<IUnknown*>(this);
AddRef();
return S_OK;
}
// Redirect QI to IAccessible this enum was retrieved for.
if (!mAnchorAcc->IsDefunct())
return mAnchorAcc->QueryInterface(aIID, aObject);
} __except(nsAccessNodeWrap::FilterA11yExceptions(::GetExceptionCode(),
GetExceptionInformation())) { }
return E_NOINTERFACE;
}
ULONG STDMETHODCALLTYPE
ChildrenEnumVariant::AddRef()
{
return ++mRefCnt;
}
ULONG STDMETHODCALLTYPE
ChildrenEnumVariant::Release()
{
mRefCnt--;
ULONG r = mRefCnt;
if (r == 0)
delete this;
return r;
}
IMPL_IUNKNOWN_QUERY_HEAD(ChildrenEnumVariant)
IMPL_IUNKNOWN_QUERY_IFACE(IEnumVARIANT);
IMPL_IUNKNOWN_QUERY_IFACE(IUnknown);
IMPL_IUNKNOWN_QUERY_AGGR_COND(mAnchorAcc, !mAnchorAcc->IsDefunct());
IMPL_IUNKNOWN_QUERY_TAIL
STDMETHODIMP
ChildrenEnumVariant::Next(ULONG aCount, VARIANT FAR* aItems,

10
accessible/src/msaa/EnumVariant.h
View File

@ -22,12 +22,7 @@ public:
mCurAcc(mAnchorAcc->GetChildAt(0)), mCurIndex(0), mRefCnt(0) { }
// IUnknown
virtual HRESULT STDMETHODCALLTYPE QueryInterface(
/* [in] */ REFIID aRefIID,
/* [annotation][iid_is][out] */ void** aObject);
virtual ULONG STDMETHODCALLTYPE AddRef();
virtual ULONG STDMETHODCALLTYPE Release();
DECL_IUNKNOWN
// IEnumVariant
virtual /* [local] */ HRESULT STDMETHODCALLTYPE Next(
@ -56,9 +51,6 @@ protected:
nsRefPtr<AccessibleWrap> mAnchorAcc;
Accessible* mCurAcc;
PRUint32 mCurIndex;
private:
ULONG mRefCnt;
};
} // a11y namespace

1
accessible/src/msaa/Makefile.in
View File

@ -69,6 +69,7 @@ LOCAL_INCLUDES += \
-I$(srcdir)/../html \
-I$(srcdir)/../xpcom \
-I$(srcdir)/../xul \
-I$(srcdir)/../windows/uia \
-I$(srcdir)/../../../content/base/src \
-I$(srcdir)/../../../content/events/src \
$(NULL)

4
accessible/src/msaa/XULListboxAccessibleWrap.cpp
View File

@ -21,8 +21,8 @@ NS_IMPL_ISUPPORTS_INHERITED0(XULListboxAccessibleWrap,
XULListboxAccessible)
IMPL_IUNKNOWN_QUERY_HEAD(XULListboxAccessibleWrap)
IMPL_IUNKNOWN_QUERY_ENTRY_COND(CAccessibleTable, IsMulticolumn());
IMPL_IUNKNOWN_QUERY_ENTRY(AccessibleWrap)
IMPL_IUNKNOWN_QUERY_CLASS_COND(CAccessibleTable, IsMulticolumn());
IMPL_IUNKNOWN_QUERY_CLASS(AccessibleWrap)
IMPL_IUNKNOWN_QUERY_TAIL

26
accessible/src/msaa/nsAccessNodeWrap.cpp
View File

@ -24,8 +24,6 @@
#include "nsPIDOMWindow.h"
#include "nsIServiceManager.h"
#include "mozilla/Preferences.h"
using namespace mozilla;
using namespace mozilla::a11y;
@ -87,22 +85,13 @@ nsAccessNodeWrap::QueryService(REFGUID guidService, REFIID iid, void** ppv)
{
*ppv = nsnull;
static const GUID IID_SimpleDOMDeprecated = {0x0c539790,0x12e4,0x11cf,0xb6,0x61,0x00,0xaa,0x00,0x4c,0xd6,0xd8};
// Provide a special service ID for getting the accessible for the browser tab
// document that contains this accessible object. If this accessible object
// is not inside a browser tab then the service fails with E_NOINTERFACE.
// A use case for this is for screen readers that need to switch context or
// 'virtual buffer' when focus moves from one browser tab area to another.
static const GUID SID_IAccessibleContentDocument = {0xa5d8e1f3,0x3571,0x4d8f,0x95,0x21,0x07,0xed,0x28,0xfb,0x07,0x2e};
if (guidService != IID_ISimpleDOMNode &&
guidService != IID_SimpleDOMDeprecated &&
guidService != IID_IAccessible && guidService != IID_IAccessible2 &&
guidService != IID_IAccessibleApplication &&
guidService != SID_IAccessibleContentDocument)
return E_INVALIDARG;
static const GUID SID_IAccessibleContentDocument =
{ 0xa5d8e1f3,0x3571,0x4d8f,0x95,0x21,0x07,0xed,0x28,0xfb,0x07,0x2e };
if (guidService == SID_IAccessibleContentDocument) {
if (iid != IID_IAccessible)
return E_NOINTERFACE;
@ -139,7 +128,7 @@ nsAccessNodeWrap::QueryService(REFGUID guidService, REFIID iid, void** ppv)
}
// Can get to IAccessibleApplication from any node via QS
if (iid == IID_IAccessibleApplication) {
if (guidService == IID_IAccessibleApplication) {
ApplicationAccessible* applicationAcc = GetApplicationAccessible();
if (!applicationAcc)
return E_NOINTERFACE;
@ -162,7 +151,14 @@ nsAccessNodeWrap::QueryService(REFGUID guidService, REFIID iid, void** ppv)
* }
*/
return QueryInterface(iid, ppv);
static const GUID IID_SimpleDOMDeprecated =
{ 0x0c539790,0x12e4,0x11cf,0xb6,0x61,0x00,0xaa,0x00,0x4c,0xd6,0xd8 };
if (guidService == IID_ISimpleDOMNode ||
guidService == IID_SimpleDOMDeprecated ||
guidService == IID_IAccessible || guidService == IID_IAccessible2)
return QueryInterface(iid, ppv);
return E_INVALIDARG;
}
//-----------------------------------------------------

22
accessible/src/msaa/nsAccessNodeWrap.h
View File

@ -34,6 +34,14 @@
#include "nsRefPtrHashtable.h"
#define A11Y_TRYBLOCK_BEGIN \
__try {
#define A11Y_TRYBLOCK_END \
} __except(nsAccessNodeWrap::FilterA11yExceptions(::GetExceptionCode(), \
GetExceptionInformation()))\
{ } \
return E_FAIL;
class AccTextChangeEvent;
@ -46,18 +54,20 @@ class nsAccessNodeWrap : public nsAccessNode,
NS_DECL_ISUPPORTS_INHERITED
NS_DECL_NSIWINACCESSNODE
public: // IServiceProvider
STDMETHODIMP QueryService(REFGUID guidService, REFIID riid, void** ppv);
public: // construction, destruction
nsAccessNodeWrap(nsIContent* aContent, DocAccessible* aDoc);
virtual ~nsAccessNodeWrap();
// IUnknown
STDMETHODIMP QueryInterface(REFIID, void**);
// IUnknown
virtual HRESULT STDMETHODCALLTYPE QueryInterface(REFIID aIID,
void** aInstancePtr);
public:
// IServiceProvider
virtual HRESULT STDMETHODCALLTYPE QueryService(REFGUID aGuidService,
REFIID aIID,
void** aInstancePtr);
// ISimpleDOMNode
virtual /* [id][propget] */ HRESULT STDMETHODCALLTYPE get_nodeInfo(
/* [out] */ BSTR __RPC_FAR *tagName,
/* [out] */ short __RPC_FAR *nameSpaceID,

16
accessible/src/windows/Makefile.in Normal file
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@ -0,0 +1,16 @@
#
# 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/.
DEPTH = ../../..
topsrcdir = @top_srcdir@
srcdir = @srcdir@
VPATH = @srcdir@
include $(DEPTH)/config/autoconf.mk
DIRS += uia \
$(null)
include $(topsrcdir)/config/rules.mk

36
accessible/src/windows/uia/Makefile.in Normal file
View File

@ -0,0 +1,36 @@
# 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/.
DEPTH = ../../../..
topsrcdir = @top_srcdir@
srcdir = @srcdir@
VPATH = @srcdir@
include $(DEPTH)/config/autoconf.mk
MODULE = accessibility
LIBRARY_NAME = accessibility_toolkit_uia_s
EXPORT_LIBRARY = ..
LIBXUL_LIBRARY = 1
CPPSRCS += \
uiaRawElmProvider.cpp \
$(NULL)
# we don't want the shared lib, but we want to force the creation of a static lib.
FORCE_STATIC_LIB = 1
include $(topsrcdir)/config/config.mk
include $(topsrcdir)/config/rules.mk
LOCAL_INCLUDES += \
-I$(srcdir) \
-I$(srcdir)/../../base \
-I$(srcdir)/../../generic \
-I$(srcdir)/../../html \
-I$(srcdir)/../../msaa \
-I$(srcdir)/../../xpcom \
-I$(srcdir)/../../xul \
$(NULL)

170
accessible/src/windows/uia/uiaRawElmProvider.cpp Normal file
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@ -0,0 +1,170 @@
/* -*- 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/. */
#include "uiaRawElmProvider.h"
#include "AccessibleWrap.h"
using namespace mozilla;
using namespace mozilla::a11y;
////////////////////////////////////////////////////////////////////////////////
// uiaRawElmProvider
////////////////////////////////////////////////////////////////////////////////
IMPL_IUNKNOWN2(uiaRawElmProvider,
IAccessibleEx,
IRawElementProviderSimple)
////////////////////////////////////////////////////////////////////////////////
// IAccessibleEx
STDMETHODIMP
uiaRawElmProvider::GetObjectForChild(long aIdChild,
__RPC__deref_out_opt IAccessibleEx** aAccEx)
{
A11Y_TRYBLOCK_BEGIN
if (!aAccEx)
return E_INVALIDARG;
*aAccEx = NULL;
return mAcc->IsDefunct() ? CO_E_OBJNOTCONNECTED : S_OK;
A11Y_TRYBLOCK_END
}
STDMETHODIMP
uiaRawElmProvider::GetIAccessiblePair(__RPC__deref_out_opt IAccessible** aAcc,
__RPC__out long* aIdChild)
{
A11Y_TRYBLOCK_BEGIN
if (!aAcc || !aIdChild)
return E_INVALIDARG;
*aAcc = NULL;
*aIdChild = 0;
if (mAcc->IsDefunct())
return CO_E_OBJNOTCONNECTED;
*aIdChild = CHILDID_SELF;
*aAcc = mAcc;
mAcc->AddRef();
return S_OK;
A11Y_TRYBLOCK_END
}
STDMETHODIMP
uiaRawElmProvider::GetRuntimeId(__RPC__deref_out_opt SAFEARRAY** aRuntimeIds)
{
A11Y_TRYBLOCK_BEGIN
if (!aRuntimeIds)
return E_INVALIDARG;
int ids[] = { UiaAppendRuntimeId, reinterpret_cast<int>(mAcc->UniqueID()) };
*aRuntimeIds = SafeArrayCreateVector(VT_I4, 0, 2);
if (!*aRuntimeIds)
return E_OUTOFMEMORY;
for (LONG i = 0; i < ArrayLength(ids); i++)
SafeArrayPutElement(*aRuntimeIds, &i, (void*)&(ids[i]));
return S_OK;
A11Y_TRYBLOCK_END
}
STDMETHODIMP
uiaRawElmProvider::ConvertReturnedElement(__RPC__in_opt IRawElementProviderSimple* aRawElmProvider,
__RPC__deref_out_opt IAccessibleEx** aAccEx)
{
A11Y_TRYBLOCK_BEGIN
if (!aRawElmProvider || !aAccEx)
return E_INVALIDARG;
*aAccEx = NULL;
void* instancePtr = NULL;
HRESULT hr = aRawElmProvider->QueryInterface(IID_IAccessibleEx, &instancePtr);
if (SUCCEEDED(hr))
*aAccEx = static_cast<IAccessibleEx*>(instancePtr);
return hr;
A11Y_TRYBLOCK_END
}
////////////////////////////////////////////////////////////////////////////////
// IRawElementProviderSimple
STDMETHODIMP
uiaRawElmProvider::get_ProviderOptions(__RPC__out enum ProviderOptions* aOptions)
{
A11Y_TRYBLOCK_BEGIN
if (!aOptions)
return E_INVALIDARG;
// This method is not used with IAccessibleEx implementations.
*aOptions = ProviderOptions_ServerSideProvider;
return S_OK;
A11Y_TRYBLOCK_END
}
STDMETHODIMP
uiaRawElmProvider::GetPatternProvider(PATTERNID aPatternId,
__RPC__deref_out_opt IUnknown** aPatternProvider)
{
A11Y_TRYBLOCK_BEGIN
if (!aPatternProvider)
return E_INVALIDARG;
*aPatternProvider = NULL;
return S_OK;
A11Y_TRYBLOCK_END
}
STDMETHODIMP
uiaRawElmProvider::GetPropertyValue(PROPERTYID aPropertyId,
__RPC__out VARIANT* aPropertyValue)
{
A11Y_TRYBLOCK_BEGIN
if (!aPropertyValue)
return E_INVALIDARG;
// UI Automation will attempt to get the property from the host
//window provider.
aPropertyValue->vt = VT_EMPTY;
return S_OK;
A11Y_TRYBLOCK_END
}
STDMETHODIMP
uiaRawElmProvider::get_HostRawElementProvider(__RPC__deref_out_opt IRawElementProviderSimple** aRawElmProvider)
{
A11Y_TRYBLOCK_BEGIN
if (!aRawElmProvider)
return E_INVALIDARG;
// This method is not used with IAccessibleEx implementations.
*aRawElmProvider = NULL;
return S_OK;
A11Y_TRYBLOCK_END
}

74
accessible/src/windows/uia/uiaRawElmProvider.h Normal file
View File

@ -0,0 +1,74 @@
/* -*- 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_uiaRawElmProvider_h__
#define mozilla_a11y_uiaRawElmProvider_h__
#include "objbase.h"
#include "AccessibleWrap.h"
#include "UIAutomation.h"
class AccessibleWrap;
namespace mozilla {
namespace a11y {
/**
* IRawElementProviderSimple implementation (maintains IAccessibleEx approach).
*/
class uiaRawElmProvider MOZ_FINAL : public IAccessibleEx,
public IRawElementProviderSimple
{
public:
uiaRawElmProvider(AccessibleWrap* aAcc) : mAcc(aAcc), mRefCnt(0) { }
// IUnknown
DECL_IUNKNOWN
// IAccessibleEx
virtual HRESULT STDMETHODCALLTYPE GetObjectForChild(
/* [in] */ long aIdChild,
/* [retval][out] */ __RPC__deref_out_opt IAccessibleEx** aAccEx);
virtual HRESULT STDMETHODCALLTYPE GetIAccessiblePair(
/* [out] */ __RPC__deref_out_opt IAccessible** aAcc,
/* [out] */ __RPC__out long* aIdChild);
virtual HRESULT STDMETHODCALLTYPE GetRuntimeId(
/* [retval][out] */ __RPC__deref_out_opt SAFEARRAY** aRuntimeIds);
virtual HRESULT STDMETHODCALLTYPE ConvertReturnedElement(
/* [in] */ __RPC__in_opt IRawElementProviderSimple* aRawElmProvider,
/* [out] */ __RPC__deref_out_opt IAccessibleEx** aAccEx);
// IRawElementProviderSimple
virtual /* [propget] */ HRESULT STDMETHODCALLTYPE get_ProviderOptions(
/* [retval][out] */ __RPC__out enum ProviderOptions* aProviderOptions);
virtual HRESULT STDMETHODCALLTYPE GetPatternProvider(
/* [in] */ PATTERNID aPatternId,
/* [retval][out] */ __RPC__deref_out_opt IUnknown** aPatternProvider);
virtual HRESULT STDMETHODCALLTYPE GetPropertyValue(
/* [in] */ PROPERTYID aPropertyId,
/* [retval][out] */ __RPC__out VARIANT* aPropertyValue);
virtual /* [propget] */ HRESULT STDMETHODCALLTYPE get_HostRawElementProvider(
/* [retval][out] */ __RPC__deref_out_opt IRawElementProviderSimple** aRawElmProvider);
private:
uiaRawElmProvider() MOZ_DELETE;
uiaRawElmProvider& operator =(const uiaRawElmProvider&) MOZ_DELETE;
uiaRawElmProvider(const uiaRawElmProvider&) MOZ_DELETE;
protected:
nsRefPtr<AccessibleWrap> mAcc;
};
} // a11y namespace
} // mozilla namespace
#endif