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Bug 561741 - use nsAccessible outside an accessible module, r=smaug, neil, joshmoz, marcoz, davidb, smichaud, sr=roc

This commit is contained in:
Alexander Surkov 2010-05-12 15:47:35 +09:00
Родитель 27ab96d2cf
Коммит d8ff3e702d
17 изменённых файлов: 121 добавлений и 177 удалений
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21
accessible/public/nsIAccessibilityService.h
Просмотреть файл

@ -41,23 +41,36 @@
#ifndef _nsIAccessibilityService_h_
#define _nsIAccessibilityService_h_
#include "nsISupports.h"
#include "nsIAccessibleRetrieval.h"
#include "nsIAccessibleEvent.h"
class nsAccessible;
class nsIContent;
class nsIDocument;
class nsIFrame;
class nsIPresShell;
class nsObjectFrame;
class nsIContent;
// 9f43b315-53c6-4d46-9818-9c8593e91984
#define NS_IACCESSIBILITYSERVICE_IID \
{0x33fa2a8d, 0x72e5, 0x4b8b, \
{0xbb, 0x17, 0x6b, 0x22, 0x79, 0x05, 0x5c, 0x6c} }
{0x9f43b315, 0x53c6, 0x4d46, \
{0x98, 0x18, 0x9c, 0x85, 0x93, 0xe9, 0x19, 0x84} }
class nsIAccessibilityService : public nsIAccessibleRetrieval
{
public:
NS_DECLARE_STATIC_IID_ACCESSOR(NS_IACCESSIBILITYSERVICE_IID)
/**
* Return an accessible object for a DOM node in the given pres shell.
*
* @param aNode [in] the DOM node to get an accessible for
* @param aPresShell [in] the presentation shell which contains layout info
* for the DOM node
*/
virtual nsAccessible* GetAccessibleInShell(nsIDOMNode *aNode,
nsIPresShell *aPresShell) = 0;
/**
* Creates accessible for the given DOM node or frame.
*/

12
accessible/public/nsIAccessibleRetrieval.idl
Просмотреть файл

@ -56,7 +56,7 @@ interface nsIDOMDOMStringList;
*
* @status UNDER_REVIEW
*/
[scriptable, uuid(3df14f00-7253-4b9c-97c2-b4632090da23)]
[scriptable, uuid(3e5cbd5c-dbab-4ea3-b82b-4cd6201d6fe0)]
interface nsIAccessibleRetrieval : nsISupports
{
/**
@ -97,16 +97,6 @@ interface nsIAccessibleRetrieval : nsISupports
*/
nsIDOMNode getRelevantContentNodeFor(in nsIDOMNode aNode);
/**
* Return an nsIAccessible for a DOM node in the given pres shell.
* Create a new accessible of the appropriate type if necessary,
* or use one from the accessibility cache if it already exists.
* @param aNode The DOM node to get an accessible for.
* @param aPresShell The presentation shell which contains layout info for the DOM node.
* @return The nsIAccessible for the given DOM node.
*/
nsIAccessible getAccessibleInShell(in nsIDOMNode aNode, in nsIPresShell aPresShell);
/**
* Returns accessible role as a string.
*

20
accessible/src/base/nsAccessNode.cpp
Просмотреть файл

@ -148,8 +148,8 @@ nsAccessNode::Init()
#ifdef DEBUG_A11Y
NS_ASSERTION(!mIsInitialized, "Initialized twice!");
#endif
nsCOMPtr<nsIAccessibleDocument> docAccessible(GetDocAccessible());
if (!docAccessible) {
nsRefPtr<nsDocAccessible> docAcc = GetDocAccessible();
if (!docAcc) {
// No doc accessible yet for this node's document.
// There was probably an accessible event fired before the
// current document was ever asked for by the assistive technology.
@ -158,22 +158,19 @@ nsAccessNode::Init()
if (presShell) {
nsCOMPtr<nsIDOMNode> docNode(do_QueryInterface(presShell->GetDocument()));
if (docNode) {
nsCOMPtr<nsIAccessible> accessible;
GetAccService()->GetAccessibleInShell(docNode, presShell,
getter_AddRefs(accessible));
docAccessible = do_QueryInterface(accessible);
nsRefPtr<nsAccessible> accessible =
GetAccService()->GetAccessibleInWeakShell(docNode, mWeakShell);
docAcc = do_QueryObject(accessible);
}
}
NS_ASSERTION(docAccessible, "Cannot cache new nsAccessNode");
if (!docAccessible) {
NS_ASSERTION(docAcc, "Cannot cache new nsAccessNode");
if (!docAcc) {
return NS_ERROR_FAILURE;
}
}
void* uniqueID;
GetUniqueID(&uniqueID);
nsRefPtr<nsDocAccessible> docAcc = do_QueryObject(docAccessible);
NS_ASSERTION(docAcc, "No nsDocAccessible for document accessible!");
if (!docAcc->CacheAccessNode(uniqueID, this))
return NS_ERROR_OUT_OF_MEMORY;
@ -185,7 +182,8 @@ nsAccessNode::Init()
if (content && content->IsInAnonymousSubtree()) {
// Specific examples of where this is used: <input type="file"> and <xul:findbar>
nsCOMPtr<nsIAccessible> parentAccessible;
docAccessible->GetAccessibleInParentChain(mDOMNode, PR_TRUE, getter_AddRefs(parentAccessible));
docAcc->GetAccessibleInParentChain(mDOMNode, PR_TRUE,
getter_AddRefs(parentAccessible));
if (parentAccessible) {
PRInt32 childCountUnused;
parentAccessible->GetChildCount(&childCountUnused);

18
accessible/src/base/nsAccessibilityService.cpp
Просмотреть файл

@ -1220,25 +1220,17 @@ nsAccessibilityService::GetAttachedAccessibleFor(nsIDOMNode *aNode,
return GetAccessibleFor(aNode, aAccessible);
}
NS_IMETHODIMP
nsAccessible*
nsAccessibilityService::GetAccessibleInShell(nsIDOMNode *aNode,
nsIPresShell *aPresShell,
nsIAccessible **aAccessible)
nsIPresShell *aPresShell)
{
NS_ENSURE_ARG_POINTER(aAccessible);
*aAccessible = nsnull;
NS_ENSURE_ARG(aNode);
NS_ENSURE_ARG(aPresShell);
if (!aNode || !aPresShell)
return nsnull;
nsCOMPtr<nsIWeakReference> weakShell(do_GetWeakReference(aPresShell));
nsRefPtr<nsAccessible> accessible =
GetAccessible(aNode, aPresShell, weakShell);
if (accessible)
CallQueryInterface(accessible.get(), aAccessible);
return NS_OK;
return accessible;
}
////////////////////////////////////////////////////////////////////////////////

3
accessible/src/base/nsAccessibilityService.h
Просмотреть файл

@ -76,6 +76,9 @@ public:
NS_DECL_NSIWEBPROGRESSLISTENER
// nsIAccessibilityService
virtual nsAccessible* GetAccessibleInShell(nsIDOMNode *aNode,
nsIPresShell *aPresShell);
virtual nsresult CreateOuterDocAccessible(nsIDOMNode *aNode,
nsIAccessible **aAccessible);
virtual nsresult CreateHTML4ButtonAccessible(nsIFrame *aFrame,

23
accessible/src/base/nsRootAccessible.cpp
Просмотреть файл

@ -648,15 +648,13 @@ nsresult nsRootAccessible::HandleEventWithTarget(nsIDOMEvent* aEvent,
return NS_OK;
}
nsCOMPtr<nsIAccessible> accessible;
accService->GetAccessibleInShell(aTargetNode, eventShell,
getter_AddRefs(accessible));
nsAccessible *accessible =
accService->GetAccessibleInShell(aTargetNode, eventShell);
if (eventType.EqualsLiteral("popuphiding"))
return HandlePopupHidingEvent(aTargetNode, accessible);
nsRefPtr<nsAccessible> acc(do_QueryObject(accessible));
if (!acc)
if (!accessible)
return NS_OK;
#ifdef MOZ_XUL
@ -715,7 +713,7 @@ nsresult nsRootAccessible::HandleEventWithTarget(nsIDOMEvent* aEvent,
return NS_OK;
}
nsCOMPtr<nsIAccessible> treeItemAccessible;
nsAccessible *treeItemAccessible = nsnull;
#ifdef MOZ_XUL
// If it's a tree element, need the currently selected item
if (isTree) {
@ -802,8 +800,7 @@ nsresult nsRootAccessible::HandleEventWithTarget(nsIDOMEvent* aEvent,
if (!focusedItem)
return NS_OK;
accService->GetAccessibleInShell(focusedItem, eventShell,
getter_AddRefs(accessible));
accessible = accService->GetAccessibleInShell(focusedItem, eventShell);
if (!accessible)
return NS_OK;
}
@ -836,9 +833,7 @@ nsresult nsRootAccessible::HandleEventWithTarget(nsIDOMEvent* aEvent,
return NS_OK; // Tree with nothing selected
}
#endif
nsRefPtr<nsAccessNode> menuAccessNode = do_QueryObject(accessible);
nsIFrame* menuFrame = menuAccessNode->GetFrame();
nsIFrame* menuFrame = accessible->GetFrame();
NS_ENSURE_TRUE(menuFrame, NS_ERROR_FAILURE);
nsIMenuFrame* imenuFrame = do_QueryFrame(menuFrame);
@ -851,15 +846,13 @@ nsresult nsRootAccessible::HandleEventWithTarget(nsIDOMEvent* aEvent,
// is active.
return NS_OK;
} else {
nsCOMPtr<nsIAccessible> containerAccessible;
accessible->GetParent(getter_AddRefs(containerAccessible));
nsAccessible *containerAccessible = accessible->GetParent();
NS_ENSURE_TRUE(containerAccessible, NS_ERROR_FAILURE);
// It is not top level menuitem
// Only fire focus event if it is not inside collapsed popup
// and not a listitem of a combo box
if (nsAccUtils::State(containerAccessible) & nsIAccessibleStates::STATE_COLLAPSED) {
nsCOMPtr<nsIAccessible> containerParent;
containerAccessible->GetParent(getter_AddRefs(containerParent));
nsAccessible *containerParent = containerAccessible->GetParent();
NS_ENSURE_TRUE(containerParent, NS_ERROR_FAILURE);
if (nsAccUtils::Role(containerParent) != nsIAccessibleRole::ROLE_COMBOBOX) {
return NS_OK;

5
accessible/src/base/nsTextEquivUtils.cpp
Просмотреть файл

@ -158,9 +158,8 @@ nsTextEquivUtils::AppendTextEquivFromContent(nsIAccessible *aInitiatorAcc,
PRBool goThroughDOMSubtree = PR_TRUE;
if (isVisible) {
nsCOMPtr<nsIAccessible> accessible;
GetAccService()->GetAccessibleInShell(DOMNode, shell,
getter_AddRefs(accessible));
nsAccessible *accessible =
GetAccService()->GetAccessibleInShell(DOMNode, shell);
if (accessible) {
rv = AppendFromAccessible(accessible, aString);
goThroughDOMSubtree = PR_FALSE;

2
content/events/src/nsDOMEvent.cpp
Просмотреть файл

@ -947,12 +947,14 @@ NS_METHOD nsDOMEvent::DuplicatePrivateData()
newEvent = mutationEvent;
break;
}
#ifdef ACCESSIBILITY
case NS_ACCESSIBLE_EVENT:
{
newEvent = new nsAccessibleEvent(PR_FALSE, msg, nsnull);
isInputEvent = PR_TRUE;
break;
}
#endif
case NS_FORM_EVENT:
{
newEvent = new nsFormEvent(PR_FALSE, msg);

19
layout/base/nsPresShell.cpp
Просмотреть файл

@ -180,8 +180,7 @@
#include "nsITimer.h"
#ifdef ACCESSIBILITY
#include "nsIAccessibilityService.h"
#include "nsIAccessible.h"
#include "nsIAccessibleEvent.h"
#include "nsAccessible.h"
#endif
// For style data reconstruction
@ -6332,8 +6331,10 @@ PresShell::HandleEventInternal(nsEvent* aEvent, nsIView *aView,
#ifdef ACCESSIBILITY
if (aEvent->eventStructType == NS_ACCESSIBLE_EVENT)
{
static_cast<nsAccessibleEvent*>(aEvent)->accessible = nsnull;
nsCOMPtr<nsIAccessibilityService> accService =
nsAccessibleEvent *accEvent = static_cast<nsAccessibleEvent*>(aEvent);
accEvent->mAccessible = nsnull;
nsCOMPtr<nsIAccessibilityService> accService =
do_GetService("@mozilla.org/accessibilityService;1");
if (accService) {
nsCOMPtr<nsISupports> container = mPresContext->GetContainer();
@ -6342,14 +6343,12 @@ PresShell::HandleEventInternal(nsEvent* aEvent, nsIView *aView,
// preshell is being held onto for fastback.
return NS_OK;
}
nsIAccessible* acc;
nsCOMPtr<nsIDOMNode> domNode(do_QueryInterface(mDocument));
NS_ASSERTION(domNode, "No dom node for doc");
accService->GetAccessibleInShell(domNode, this, &acc);
// Addref this - it's not a COM Ptr
// We'll make sure the right number of Addref's occur before
// handing this back to the accessibility client
static_cast<nsAccessibleEvent*>(aEvent)->accessible = acc;
accEvent->mAccessible = accService->GetAccessibleInShell(domNode, this);
// Ensure this is set in case a11y was activated before any
// nsPresShells existed to observe "a11y-init-or-shutdown" topic
gIsAccessibilityActive = PR_TRUE;

2
widget/public/nsEvent.h
Просмотреть файл

@ -79,7 +79,9 @@ class nsScrollPortEvent;
class nsInputEvent;
class nsMouseEvent;
class nsDragEvent;
#ifdef ACCESSIBILITY
class nsAccessibleEvent;
#endif
class nsKeyEvent;
class nsTextEvent;
class nsCompositionEvent;

10
widget/public/nsGUIEvent.h
Просмотреть файл

@ -60,9 +60,11 @@
#include "nsITransferable.h"
#include "nsIVariant.h"
#ifdef ACCESSIBILITY
class nsAccessible;
#endif
class nsIRenderingContext;
class nsIMenuItem;
class nsIAccessible;
class nsIContent;
class nsIURI;
class nsHashKey;
@ -838,6 +840,7 @@ public:
PRPackedBool userCancelled;
};
#ifdef ACCESSIBILITY
/**
* Accessible event
*/
@ -847,12 +850,13 @@ class nsAccessibleEvent : public nsInputEvent
public:
nsAccessibleEvent(PRBool isTrusted, PRUint32 msg, nsIWidget *w)
: nsInputEvent(isTrusted, msg, w, NS_ACCESSIBLE_EVENT),
accessible(nsnull)
mAccessible(nsnull)
{
}
nsIAccessible* accessible;
nsAccessible *mAccessible;
};
#endif
/**
* Keyboard event

4
widget/src/cocoa/nsChildView.h
Просмотреть файл

@ -42,7 +42,7 @@
// formal protocols
#include "mozView.h"
#ifdef ACCESSIBILITY
#include "nsIAccessible.h"
#include "nsAccessible.h"
#include "mozAccessibleProtocol.h"
#endif
@ -366,7 +366,7 @@ public:
virtual PRBool DispatchWindowEvent(nsGUIEvent& event);
#ifdef ACCESSIBILITY
void GetDocumentAccessible(nsIAccessible** aAccessible);
already_AddRefed<nsAccessible> GetDocumentAccessible();
#endif
virtual gfxASurface* GetThebesSurface();

39
widget/src/cocoa/nsChildView.mm
Просмотреть файл

@ -2115,28 +2115,26 @@ nsChildView::EndSecureKeyboardInput()
}
#ifdef ACCESSIBILITY
void
nsChildView::GetDocumentAccessible(nsIAccessible** aAccessible)
already_AddRefed<nsAccessible>
nsChildView::GetDocumentAccessible()
{
*aAccessible = nsnull;
nsCOMPtr<nsIAccessible> accessible = do_QueryReferent(mAccessible);
if (!mAccessible) {
// need to fetch the accessible anew, because it has gone away.
nsEventStatus status;
nsAccessibleEvent event(PR_TRUE, NS_GETACCESSIBLE, this);
DispatchEvent(&event, status);
// cache the accessible in our weak ptr
mAccessible = do_GetWeakReference(event.accessible);
// now try again
accessible = do_QueryReferent(mAccessible);
nsAccessible *docAccessible = nsnull;
if (mAccessible) {
CallQueryReferent(mAccessible.get(), &docAccessible);
return docAccessible;
}
NS_IF_ADDREF(*aAccessible = accessible.get());
return;
// need to fetch the accessible anew, because it has gone away.
nsEventStatus status;
nsAccessibleEvent event(PR_TRUE, NS_GETACCESSIBLE, this);
DispatchEvent(&event, status);
// cache the accessible in our weak ptr
mAccessible =
do_GetWeakReference(static_cast<nsIAccessible*>(event.mAccessible));
NS_IF_ADDREF(event.mAccessible);
return event.mAccessible;
}
#endif
@ -6075,8 +6073,7 @@ static const char* ToEscapedString(NSString* aString, nsCAutoString& aBuf)
nsAutoRetainCocoaObject kungFuDeathGrip(self);
nsCOMPtr<nsIWidget> kungFuDeathGrip2(mGeckoChild);
nsCOMPtr<nsIAccessible> accessible;
mGeckoChild->GetDocumentAccessible(getter_AddRefs(accessible));
nsRefPtr<nsAccessible> accessible = mGeckoChild->GetDocumentAccessible();
if (!mGeckoChild)
return nil;

61
widget/src/gtk2/nsWindow.cpp
Просмотреть файл

@ -95,8 +95,6 @@
#ifdef ACCESSIBILITY
#include "nsIAccessibilityService.h"
#include "nsIAccessibleRole.h"
#include "nsIAccessibleEvent.h"
#include "prenv.h"
#include "stdlib.h"
static PRBool sAccessibilityChecked = PR_FALSE;
@ -6510,14 +6508,13 @@ gdk_keyboard_get_modmap_masks(Display* aDisplay,
* void
* nsWindow::CreateRootAccessible
*
* request to create the nsIAccessible Object for the toplevel window
* request to create the accessible object for the toplevel window
**/
void
nsWindow::CreateRootAccessible()
{
if (mIsTopLevel && !mRootAccessible) {
nsCOMPtr<nsIAccessible> acc;
DispatchAccessibleEvent(getter_AddRefs(acc));
nsAccessible *acc = DispatchAccessibleEvent();
if (acc) {
mRootAccessible = acc;
@ -6525,71 +6522,40 @@ nsWindow::CreateRootAccessible()
}
}
void
nsWindow::GetRootAccessible(nsIAccessible** aAccessible)
{
nsCOMPtr<nsIAccessible> accessible, parentAccessible;
DispatchAccessibleEvent(getter_AddRefs(accessible));
PRUint32 role;
if (!accessible) {
return;
}
while (PR_TRUE) {
accessible->GetParent(getter_AddRefs(parentAccessible));
if (!parentAccessible) {
break;
}
parentAccessible->GetRole(&role);
if (role == nsIAccessibleRole::ROLE_APP_ROOT) {
NS_ADDREF(*aAccessible = accessible);
break;
}
accessible = parentAccessible;
}
}
/**
* void
* nsWindow::DispatchAccessibleEvent
* @aAccessible: the out var, hold the new accessible object
*
* generate the NS_GETACCESSIBLE event, the event handler is
* reponsible to create an nsIAccessible instant.
* reponsible to create an nsAccessible instant.
**/
PRBool
nsWindow::DispatchAccessibleEvent(nsIAccessible** aAccessible)
nsAccessible*
nsWindow::DispatchAccessibleEvent()
{
PRBool result = PR_FALSE;
nsAccessibleEvent event(PR_TRUE, NS_GETACCESSIBLE, this);
*aAccessible = nsnull;
nsEventStatus status;
DispatchEvent(&event, status);
result = (nsEventStatus_eConsumeNoDefault == status) ? PR_TRUE : PR_FALSE;
(nsEventStatus_eConsumeNoDefault == status) ? PR_TRUE : PR_FALSE;
// if the event returned an accesssible get it.
if (event.accessible)
*aAccessible = event.accessible;
return result;
return event.mAccessible;
}
void
nsWindow::DispatchActivateEventAccessible(void)
{
if (sAccessibilityEnabled) {
nsCOMPtr<nsIAccessible> rootAcc;
GetRootAccessible(getter_AddRefs(rootAcc));
nsCOMPtr<nsIAccessibilityService> accService =
do_GetService("@mozilla.org/accessibilityService;1");
if (accService) {
nsCOMPtr<nsIAccessible> appRootAcc;
accService->GetApplicationAccessible(getter_AddRefs(appRootAcc));
accService->FireAccessibleEvent(
nsIAccessibleEvent::EVENT_WINDOW_ACTIVATE,
rootAcc);
appRootAcc);
}
}
}
@ -6598,16 +6564,15 @@ void
nsWindow::DispatchDeactivateEventAccessible(void)
{
if (sAccessibilityEnabled) {
nsCOMPtr<nsIAccessible> rootAcc;
GetRootAccessible(getter_AddRefs(rootAcc));
nsCOMPtr<nsIAccessibilityService> accService =
do_GetService("@mozilla.org/accessibilityService;1");
if (accService) {
nsCOMPtr<nsIAccessible> appRootAcc;
accService->GetApplicationAccessible(getter_AddRefs(appRootAcc));
accService->FireAccessibleEvent(
nsIAccessibleEvent::EVENT_WINDOW_DEACTIVATE,
rootAcc);
appRootAcc);
}
}
}

8
widget/src/gtk2/nsWindow.h
Просмотреть файл

@ -65,8 +65,7 @@
#endif /* MOZ_X11 */
#ifdef ACCESSIBILITY
#include "nsIAccessNode.h"
#include "nsIAccessible.h"
#include "nsAccessible.h"
#endif
#include "nsGtkIMModule.h"
@ -408,12 +407,11 @@ private:
#endif
#ifdef ACCESSIBILITY
nsCOMPtr<nsIAccessible> mRootAccessible;
nsRefPtr<nsAccessible> mRootAccessible;
void CreateRootAccessible();
void GetRootAccessible(nsIAccessible** aAccessible);
void DispatchActivateEventAccessible();
void DispatchDeactivateEventAccessible();
NS_IMETHOD_(PRBool) DispatchAccessibleEvent(nsIAccessible** aAccessible);
nsAccessible* DispatchAccessibleEvent();
#endif
// The cursor cache

45
widget/src/windows/nsWindow.cpp
Просмотреть файл

@ -184,9 +184,6 @@
#if !defined(WINABLEAPI)
#include <winable.h>
#endif // !defined(WINABLEAPI)
#include "nsIAccessible.h"
#include "nsIAccessibleDocument.h"
#include "nsIAccessNode.h"
#endif // defined(ACCESSIBILITY)
#if MOZ_WINSDK_TARGETVER >= MOZ_NTDDI_WIN7
@ -3617,32 +3614,24 @@ PRBool nsWindow::DispatchMouseEvent(PRUint32 aEventType, WPARAM wParam,
// Deal with accessibile event
#ifdef ACCESSIBILITY
PRBool nsWindow::DispatchAccessibleEvent(PRUint32 aEventType, nsIAccessible** aAcc, nsIntPoint* aPoint)
nsAccessible*
nsWindow::DispatchAccessibleEvent(PRUint32 aEventType)
{
PRBool result = PR_FALSE;
if (nsnull == mEventCallback) {
return result;
return nsnull;
}
*aAcc = nsnull;
nsAccessibleEvent event(PR_TRUE, aEventType, this);
InitEvent(event, aPoint);
InitEvent(event, nsnull);
event.isShift = IS_VK_DOWN(NS_VK_SHIFT);
event.isControl = IS_VK_DOWN(NS_VK_CONTROL);
event.isMeta = PR_FALSE;
event.isAlt = IS_VK_DOWN(NS_VK_ALT);
event.accessible = nsnull;
result = DispatchWindowEvent(&event);
DispatchWindowEvent(&event);
// if the event returned an accesssible get it.
if (event.accessible)
*aAcc = event.accessible;
return result;
return event.mAccessible;
}
#endif
@ -4589,7 +4578,7 @@ PRBool nsWindow::ProcessMessage(UINT msg, WPARAM &wParam, LPARAM &lParam,
#ifdef ACCESSIBILITY
if (nsWindow::sIsAccessibilityOn) {
// Create it for the first time so that it can start firing events
nsCOMPtr<nsIAccessible> rootAccessible = GetRootAccessible();
nsAccessible *rootAccessible = GetRootAccessible();
}
#endif
@ -4674,7 +4663,7 @@ PRBool nsWindow::ProcessMessage(UINT msg, WPARAM &wParam, LPARAM &lParam,
{
*aRetValue = 0;
if (lParam == OBJID_CLIENT) { // oleacc.dll will be loaded dynamically
nsCOMPtr<nsIAccessible> rootAccessible = GetRootAccessible(); // Held by a11y cache
nsAccessible *rootAccessible = GetRootAccessible(); // Held by a11y cache
if (rootAccessible) {
IAccessible *msaaAccessible = NULL;
rootAccessible->GetNativeInterface((void**)&msaaAccessible); // does an addref
@ -6792,7 +6781,8 @@ nsWindow::OnIMESelectionChange(void)
#endif //NS_ENABLE_TSF
#ifdef ACCESSIBILITY
already_AddRefed<nsIAccessible> nsWindow::GetRootAccessible()
nsAccessible*
nsWindow::GetRootAccessible()
{
// We want the ability to forcibly disable a11y on windows, because
// some non-a11y-related components attempt to bring it up. See bug
@ -6824,8 +6814,6 @@ already_AddRefed<nsIAccessible> nsWindow::GetRootAccessible()
return nsnull;
}
nsIAccessible *rootAccessible = nsnull;
// If accessibility is turned on, we create this even before it is requested
// when the window gets focused. We need it to be created early so it can
// generate accessibility events right away
@ -6839,18 +6827,19 @@ already_AddRefed<nsIAccessible> nsWindow::GetRootAccessible()
// Loop through windows and find the first one with accessibility info
accessibleWindow = GetNSWindowPtr(accessibleWnd);
if (accessibleWindow) {
accessibleWindow->DispatchAccessibleEvent(NS_GETACCESSIBLE, &rootAccessible);
nsAccessible *rootAccessible =
accessibleWindow->DispatchAccessibleEvent(NS_GETACCESSIBLE);
if (rootAccessible) {
break; // Success, one of the child windows was active
// Success, one of the child windows was active.
return rootAccessible;
}
}
accessibleWnd = ::GetNextWindow(accessibleWnd, GW_HWNDNEXT);
}
return nsnull;
}
else {
DispatchAccessibleEvent(NS_GETACCESSIBLE, &rootAccessible);
}
return rootAccessible;
return DispatchAccessibleEvent(NS_GETACCESSIBLE);
}
STDMETHODIMP_(LRESULT)

6
widget/src/windows/nsWindow.h
Просмотреть файл

@ -75,7 +75,7 @@
#ifdef ACCESSIBILITY
#include "OLEACC.H"
#include "nsIAccessible.h"
#include "nsAccessible.h"
#endif
#if !defined(WINCE)
@ -219,8 +219,8 @@ public:
void SuppressBlurEvents(PRBool aSuppress); // Called from nsFilePicker
PRBool BlurEventsSuppressed();
#ifdef ACCESSIBILITY
virtual PRBool DispatchAccessibleEvent(PRUint32 aEventType, nsIAccessible** aAccessible, nsIntPoint* aPoint = nsnull);
already_AddRefed<nsIAccessible> GetRootAccessible();
nsAccessible* DispatchAccessibleEvent(PRUint32 aEventType);
nsAccessible* GetRootAccessible();
#endif // ACCESSIBILITY
/**