/**
* Gets the bounds for the areaFrame.
* Walks the Frame tree and checks for proper frames.
*/
void
HTMLComboboxListAccessible::GetBoundsRect(nsRect& aBounds, nsIFrame** aBoundingFrame)
{
*aBoundingFrame = nsnull;
Accessible* comboAcc = Parent();
if (!comboAcc)
return;
if (0 == (comboAcc->State() & states::COLLAPSED)) {
HTMLSelectListAccessible::GetBoundsRect(aBounds, aBoundingFrame);
return;
}
// Get the first option.
nsIContent* content = mContent->GetFirstChild();
if (!content) {
return;
}
nsIFrame* frame = content->GetPrimaryFrame();
if (!frame) {
*aBoundingFrame = nsnull;
return;
}
*aBoundingFrame = frame->GetParent();
aBounds = (*aBoundingFrame)->GetRect();
}
PRUint64
HTMLSelectOptionAccessible::NativeState()
{
// As a HTMLSelectOptionAccessible we can have the following states:
// SELECTABLE, SELECTED, FOCUSED, FOCUSABLE, OFFSCREEN
// Upcall to Accessible, but skip HyperTextAccessible impl
// because we don't want EDITABLE or SELECTABLE_TEXT
PRUint64 state = Accessible::NativeState();
Accessible* select = GetSelect();
if (!select)
return state;
PRUint64 selectState = select->State();
if (selectState & states::INVISIBLE)
return state;
// Are we selected?
bool isSelected = false;
nsCOMPtr<nsIDOMHTMLOptionElement> option(do_QueryInterface(mContent));
if (option) {
option->GetSelected(&isSelected);
if (isSelected)
state |= states::SELECTED;
}
if (selectState & states::OFFSCREEN) {
state |= states::OFFSCREEN;
}
else if (selectState & states::COLLAPSED) {
// <select> is COLLAPSED: add OFFSCREEN, if not the currently
// visible option
if (!isSelected) {
state |= states::OFFSCREEN;
}
else {
// Clear offscreen and invisible for currently showing option
state &= ~(states::OFFSCREEN | states::INVISIBLE);
state |= selectState & states::OPAQUE1;
}
}
else {
// XXX list frames are weird, don't rely on Accessible's general
// visibility implementation unless they get reimplemented in layout
state &= ~states::OFFSCREEN;
// <select> is not collapsed: compare bounds to calculate OFFSCREEN
Accessible* listAcc = Parent();
if (listAcc) {
PRInt32 optionX, optionY, optionWidth, optionHeight;
PRInt32 listX, listY, listWidth, listHeight;
GetBounds(&optionX, &optionY, &optionWidth, &optionHeight);
listAcc->GetBounds(&listX, &listY, &listWidth, &listHeight);
if (optionY < listY || optionY + optionHeight > listY + listHeight) {
state |= states::OFFSCREEN;
}
}
}
return state;
}
nsRect
HTMLComboboxListAccessible::RelativeBounds(nsIFrame** aBoundingFrame) const
{
*aBoundingFrame = nullptr;
Accessible* comboAcc = Parent();
if (!comboAcc)
return nsRect();
if (0 == (comboAcc->State() & states::COLLAPSED)) {
return HTMLSelectListAccessible::RelativeBounds(aBoundingFrame);
}
// Get the first option.
nsIContent* content = mContent->GetFirstChild();
if (!content)
return nsRect();
nsIFrame* frame = content->GetPrimaryFrame();
if (!frame) {
*aBoundingFrame = nullptr;
return nsRect();
}
*aBoundingFrame = frame->GetParent();
return (*aBoundingFrame)->GetRect();
}
nsRect
HTMLSelectOptionAccessible::RelativeBounds(nsIFrame** aBoundingFrame) const
{
Accessible* combobox = GetCombobox();
if (combobox && (combobox->State() & states::COLLAPSED))
return combobox->RelativeBounds(aBoundingFrame);
return HyperTextAccessibleWrap::RelativeBounds(aBoundingFrame);
}
uint64_t
HTMLSelectOptionAccessible::NativeState() const
{
// As a HTMLSelectOptionAccessible we can have the following states:
// SELECTABLE, SELECTED, FOCUSED, FOCUSABLE, OFFSCREEN
// Upcall to Accessible, but skip HyperTextAccessible impl
// because we don't want EDITABLE or SELECTABLE_TEXT
uint64_t state = Accessible::NativeState();
Accessible* select = GetSelect();
if (!select)
return state;
uint64_t selectState = select->State();
if (selectState & states::INVISIBLE)
return state;
// Are we selected?
HTMLOptionElement* option = HTMLOptionElement::FromNode(mContent);
bool selected = option && option->Selected();
if (selected)
state |= states::SELECTED;
if (selectState & states::OFFSCREEN) {
state |= states::OFFSCREEN;
} else if (selectState & states::COLLAPSED) {
// <select> is COLLAPSED: add OFFSCREEN, if not the currently
// visible option
if (!selected) {
state |= states::OFFSCREEN;
// Ensure the invisible state is removed. Otherwise, group info will skip
// this option. Furthermore, this gets cached and this doesn't get
// invalidated even once the select is expanded.
state &= ~states::INVISIBLE;
} else {
// Clear offscreen and invisible for currently showing option
state &= ~(states::OFFSCREEN | states::INVISIBLE);
state |= selectState & states::OPAQUE1;
}
} else {
// XXX list frames are weird, don't rely on Accessible's general
// visibility implementation unless they get reimplemented in layout
state &= ~states::OFFSCREEN;
// <select> is not collapsed: compare bounds to calculate OFFSCREEN
Accessible* listAcc = Parent();
if (listAcc) {
nsIntRect optionRect = Bounds();
nsIntRect listRect = listAcc->Bounds();
if (optionRect.Y() < listRect.Y() ||
optionRect.YMost() > listRect.YMost()) {
state |= states::OFFSCREEN;
}
}
}
return state;
}
void
HTMLSelectOptionAccessible::GetBoundsRect(nsRect& aTotalBounds,
nsIFrame** aBoundingFrame)
{
Accessible* combobox = GetCombobox();
if (combobox && (combobox->State() & states::COLLAPSED))
combobox->GetBoundsRect(aTotalBounds, aBoundingFrame);
else
HyperTextAccessibleWrap::GetBoundsRect(aTotalBounds, aBoundingFrame);
}
uint64_t
HTMLSelectOptionAccessible::NativeState()
{
// As a HTMLSelectOptionAccessible we can have the following states:
// SELECTABLE, SELECTED, FOCUSED, FOCUSABLE, OFFSCREEN
// Upcall to Accessible, but skip HyperTextAccessible impl
// because we don't want EDITABLE or SELECTABLE_TEXT
uint64_t state = Accessible::NativeState();
Accessible* select = GetSelect();
if (!select)
return state;
uint64_t selectState = select->State();
if (selectState & states::INVISIBLE)
return state;
// Are we selected?
HTMLOptionElement* option = HTMLOptionElement::FromContent(mContent);
bool selected = option && option->Selected();
if (selected)
state |= states::SELECTED;
if (selectState & states::OFFSCREEN) {
state |= states::OFFSCREEN;
} else if (selectState & states::COLLAPSED) {
// <select> is COLLAPSED: add OFFSCREEN, if not the currently
// visible option
if (!selected) {
state |= states::OFFSCREEN;
state ^= states::INVISIBLE;
} else {
// Clear offscreen and invisible for currently showing option
state &= ~(states::OFFSCREEN | states::INVISIBLE);
state |= selectState & states::OPAQUE1;
}
} else {
// XXX list frames are weird, don't rely on Accessible's general
// visibility implementation unless they get reimplemented in layout
state &= ~states::OFFSCREEN;
// <select> is not collapsed: compare bounds to calculate OFFSCREEN
Accessible* listAcc = Parent();
if (listAcc) {
nsIntRect optionRect = Bounds();
nsIntRect listRect = listAcc->Bounds();
if (optionRect.y < listRect.y ||
optionRect.y + optionRect.height > listRect.y + listRect.height) {
state |= states::OFFSCREEN;
}
}
}
return state;
}
bool
DocAccessibleChild::RecvState(const uint64_t& aID, uint64_t* aState)
{
Accessible* acc = IdToAccessible(aID);
if (!acc) {
*aState = states::DEFUNCT;
return true;
}
*aState = acc->State();
return true;
}
uint64_t
XULMenuitemAccessible::NativeState() const
{
uint64_t state = Accessible::NativeState();
// Has Popup?
if (mContent->NodeInfo()->Equals(nsGkAtoms::menu, kNameSpaceID_XUL)) {
state |= states::HASPOPUP;
if (mContent->AsElement()->HasAttr(kNameSpaceID_None, nsGkAtoms::open))
state |= states::EXPANDED;
else
state |= states::COLLAPSED;
}
// Checkable/checked?
static Element::AttrValuesArray strings[] =
{ nsGkAtoms::radio, nsGkAtoms::checkbox, nullptr };
if (mContent->AsElement()->FindAttrValueIn(kNameSpaceID_None, nsGkAtoms::type,
strings, eCaseMatters) >= 0) {
// Checkable?
state |= states::CHECKABLE;
// Checked?
if (mContent->AsElement()->AttrValueIs(kNameSpaceID_None, nsGkAtoms::checked,
nsGkAtoms::_true, eCaseMatters))
state |= states::CHECKED;
}
// Combo box listitem
bool isComboboxOption = (Role() == roles::COMBOBOX_OPTION);
if (isComboboxOption) {
// Is selected?
bool isSelected = false;
nsCOMPtr<nsIDOMXULSelectControlItemElement>
item(do_QueryInterface(mContent));
NS_ENSURE_TRUE(item, state);
item->GetSelected(&isSelected);
// Is collapsed?
bool isCollapsed = false;
Accessible* parent = Parent();
if (parent && parent->State() & states::INVISIBLE)
isCollapsed = true;
if (isSelected) {
state |= states::SELECTED;
// Selected and collapsed?
if (isCollapsed) {
// Set selected option offscreen/invisible according to combobox state
Accessible* grandParent = parent->Parent();
if (!grandParent)
return state;
NS_ASSERTION(grandParent->IsCombobox(),
"grandparent of combobox listitem is not combobox");
uint64_t grandParentState = grandParent->State();
state &= ~(states::OFFSCREEN | states::INVISIBLE);
state |= (grandParentState & states::OFFSCREEN) |
(grandParentState & states::INVISIBLE) |
(grandParentState & states::OPAQUE1);
} // isCollapsed
} // isSelected
} // ROLE_COMBOBOX_OPTION
return state;
}
void
AccGroupInfo::Update()
{
Accessible* parent = mItem->Parent();
if (!parent)
return;
int32_t indexInParent = mItem->IndexInParent();
uint32_t siblingCount = parent->ChildCount();
if (indexInParent == -1 ||
indexInParent >= static_cast<int32_t>(siblingCount)) {
NS_ERROR("Wrong index in parent! Tree invalidation problem.");
return;
}
int32_t level = nsAccUtils::GetARIAOrDefaultLevel(mItem);
// Compute position in set.
mPosInSet = 1;
for (int32_t idx = indexInParent - 1; idx >= 0 ; idx--) {
Accessible* sibling = parent->GetChildAt(idx);
roles::Role siblingRole = sibling->Role();
// If the sibling is separator then the group is ended.
if (siblingRole == roles::SEPARATOR)
break;
// If sibling is not visible and hasn't the same base role.
if (BaseRole(siblingRole) != mRole || sibling->State() & states::INVISIBLE)
continue;
// Check if it's hierarchical flatten structure, i.e. if the sibling
// level is lesser than this one then group is ended, if the sibling level
// is greater than this one then the group is split by some child elements
// (group will be continued).
int32_t siblingLevel = nsAccUtils::GetARIAOrDefaultLevel(sibling);
if (siblingLevel < level) {
mParent = sibling;
break;
}
// Skip subset.
if (siblingLevel > level)
continue;
// If the previous item in the group has calculated group information then
// build group information for this item based on found one.
if (sibling->mBits.groupInfo) {
mPosInSet += sibling->mBits.groupInfo->mPosInSet;
mParent = sibling->mBits.groupInfo->mParent;
mSetSize = sibling->mBits.groupInfo->mSetSize;
return;
}
mPosInSet++;
}
// Compute set size.
mSetSize = mPosInSet;
for (uint32_t idx = indexInParent + 1; idx < siblingCount; idx++) {
Accessible* sibling = parent->GetChildAt(idx);
roles::Role siblingRole = sibling->Role();
// If the sibling is separator then the group is ended.
if (siblingRole == roles::SEPARATOR)
break;
// If sibling is visible and has the same base role
if (BaseRole(siblingRole) != mRole || sibling->State() & states::INVISIBLE)
continue;
// and check if it's hierarchical flatten structure.
int32_t siblingLevel = nsAccUtils::GetARIAOrDefaultLevel(sibling);
if (siblingLevel < level)
break;
// Skip subset.
if (siblingLevel > level)
continue;
// If the next item in the group has calculated group information then
// build group information for this item based on found one.
if (sibling->mBits.groupInfo) {
mParent = sibling->mBits.groupInfo->mParent;
mSetSize = sibling->mBits.groupInfo->mSetSize;
return;
}
mSetSize++;
}
if (mParent)
return;
roles::Role parentRole = parent->Role();
if (ShouldReportRelations(mRole, parentRole))
mParent = parent;
// ARIA tree and list can be arranged by using ARIA groups to organize levels.
if (parentRole != roles::GROUPING)
return;
// Way #1 for ARIA tree (not ARIA treegrid): previous sibling of a group is a
// parent. In other words the parent of the tree item will be a group and
// the previous tree item of the group is a conceptual parent of the tree
// item.
if (mRole == roles::OUTLINEITEM) {
Accessible* parentPrevSibling = parent->PrevSibling();
if (parentPrevSibling && parentPrevSibling->Role() == mRole) {
mParent = parentPrevSibling;
return;
}
}
// Way #2 for ARIA list and tree: group is a child of an item. In other words
// the parent of the item will be a group and containing item of the group is
// a conceptual parent of the item.
if (mRole == roles::LISTITEM || mRole == roles::OUTLINEITEM) {
Accessible* grandParent = parent->Parent();
if (grandParent && grandParent->Role() == mRole)
mParent = grandParent;
}
}
// RootAccessible protected
void
RootAccessible::ProcessDOMEvent(nsIDOMEvent* aDOMEvent)
{
MOZ_ASSERT(aDOMEvent);
Event* event = aDOMEvent->InternalDOMEvent();
nsCOMPtr<nsINode> origTargetNode = do_QueryInterface(event->GetOriginalTarget());
nsAutoString eventType;
aDOMEvent->GetType(eventType);
#ifdef A11Y_LOG
if (logging::IsEnabled(logging::eDOMEvents))
logging::DOMEvent("processed", origTargetNode, eventType);
#endif
if (eventType.EqualsLiteral("popuphiding")) {
HandlePopupHidingEvent(origTargetNode);
return;
}
DocAccessible* targetDocument = GetAccService()->
GetDocAccessible(origTargetNode->OwnerDoc());
NS_ASSERTION(targetDocument, "No document while accessible is in document?!");
Accessible* accessible =
targetDocument->GetAccessibleOrContainer(origTargetNode);
if (!accessible)
return;
#ifdef MOZ_XUL
XULTreeAccessible* treeAcc = accessible->AsXULTree();
if (treeAcc) {
if (eventType.EqualsLiteral("TreeRowCountChanged")) {
HandleTreeRowCountChangedEvent(aDOMEvent, treeAcc);
return;
}
if (eventType.EqualsLiteral("TreeInvalidated")) {
HandleTreeInvalidatedEvent(aDOMEvent, treeAcc);
return;
}
}
#endif
if (eventType.EqualsLiteral("RadioStateChange")) {
uint64_t state = accessible->State();
bool isEnabled = (state & (states::CHECKED | states::SELECTED)) != 0;
if (accessible->NeedsDOMUIEvent()) {
nsRefPtr<AccEvent> accEvent =
new AccStateChangeEvent(accessible, states::CHECKED, isEnabled);
nsEventShell::FireEvent(accEvent);
}
if (isEnabled) {
FocusMgr()->ActiveItemChanged(accessible);
#ifdef A11Y_LOG
if (logging::IsEnabled(logging::eFocus))
logging::ActiveItemChangeCausedBy("RadioStateChange", accessible);
#endif
}
return;
}
if (eventType.EqualsLiteral("CheckboxStateChange")) {
if (accessible->NeedsDOMUIEvent()) {
uint64_t state = accessible->State();
bool isEnabled = !!(state & states::CHECKED);
nsRefPtr<AccEvent> accEvent =
new AccStateChangeEvent(accessible, states::CHECKED, isEnabled);
nsEventShell::FireEvent(accEvent);
}
return;
}
Accessible* treeItemAcc = nullptr;
#ifdef MOZ_XUL
// If it's a tree element, need the currently selected item.
if (treeAcc) {
treeItemAcc = accessible->CurrentItem();
if (treeItemAcc)
accessible = treeItemAcc;
}
if (treeItemAcc && eventType.EqualsLiteral("OpenStateChange")) {
uint64_t state = accessible->State();
bool isEnabled = (state & states::EXPANDED) != 0;
nsRefPtr<AccEvent> accEvent =
new AccStateChangeEvent(accessible, states::EXPANDED, isEnabled);
nsEventShell::FireEvent(accEvent);
return;
}
nsINode* targetNode = accessible->GetNode();
if (treeItemAcc && eventType.EqualsLiteral("select")) {
// XXX: We shouldn't be based on DOM select event which doesn't provide us
// any context info. We should integrate into nsTreeSelection instead.
// If multiselect tree, we should fire selectionadd or selection removed
if (FocusMgr()->HasDOMFocus(targetNode)) {
nsCOMPtr<nsIDOMXULMultiSelectControlElement> multiSel =
do_QueryInterface(targetNode);
nsAutoString selType;
multiSel->GetSelType(selType);
if (selType.IsEmpty() || !selType.EqualsLiteral("single")) {
// XXX: We need to fire EVENT_SELECTION_ADD and EVENT_SELECTION_REMOVE
// for each tree item. Perhaps each tree item will need to cache its
// selection state and fire an event after a DOM "select" event when
// that state changes. XULTreeAccessible::UpdateTreeSelection();
nsEventShell::FireEvent(nsIAccessibleEvent::EVENT_SELECTION_WITHIN,
accessible);
return;
}
nsRefPtr<AccSelChangeEvent> selChangeEvent =
new AccSelChangeEvent(treeAcc, treeItemAcc,
AccSelChangeEvent::eSelectionAdd);
nsEventShell::FireEvent(selChangeEvent);
return;
}
}
else
#endif
if (eventType.EqualsLiteral("AlertActive")) {
nsEventShell::FireEvent(nsIAccessibleEvent::EVENT_ALERT, accessible);
}
else if (eventType.EqualsLiteral("popupshown")) {
HandlePopupShownEvent(accessible);
}
else if (eventType.EqualsLiteral("DOMMenuInactive")) {
if (accessible->Role() == roles::MENUPOPUP) {
nsEventShell::FireEvent(nsIAccessibleEvent::EVENT_MENUPOPUP_END,
accessible);
}
}
else if (eventType.EqualsLiteral("DOMMenuItemActive")) {
FocusMgr()->ActiveItemChanged(accessible);
#ifdef A11Y_LOG
if (logging::IsEnabled(logging::eFocus))
logging::ActiveItemChangeCausedBy("DOMMenuItemActive", accessible);
#endif
}
else if (eventType.EqualsLiteral("DOMMenuItemInactive")) {
// Process DOMMenuItemInactive event for autocomplete only because this is
// unique widget that may acquire focus from autocomplete popup while popup
// stays open and has no active item. In case of XUL tree autocomplete
// popup this event is fired for tree accessible.
Accessible* widget =
accessible->IsWidget() ? accessible : accessible->ContainerWidget();
if (widget && widget->IsAutoCompletePopup()) {
FocusMgr()->ActiveItemChanged(nullptr);
#ifdef A11Y_LOG
if (logging::IsEnabled(logging::eFocus))
logging::ActiveItemChangeCausedBy("DOMMenuItemInactive", accessible);
#endif
}
}
else if (eventType.EqualsLiteral("DOMMenuBarActive")) { // Always from user input
nsEventShell::FireEvent(nsIAccessibleEvent::EVENT_MENU_START,
accessible, eFromUserInput);
// Notify of active item change when menubar gets active and if it has
// current item. This is a case of mouseover (set current menuitem) and
// mouse click (activate the menubar). If menubar doesn't have current item
// (can be a case of menubar activation from keyboard) then ignore this
// notification because later we'll receive DOMMenuItemActive event after
// current menuitem is set.
Accessible* activeItem = accessible->CurrentItem();
if (activeItem) {
FocusMgr()->ActiveItemChanged(activeItem);
#ifdef A11Y_LOG
if (logging::IsEnabled(logging::eFocus))
logging::ActiveItemChangeCausedBy("DOMMenuBarActive", accessible);
#endif
}
}
else if (eventType.EqualsLiteral("DOMMenuBarInactive")) { // Always from user input
nsEventShell::FireEvent(nsIAccessibleEvent::EVENT_MENU_END,
accessible, eFromUserInput);
FocusMgr()->ActiveItemChanged(nullptr);
#ifdef A11Y_LOG
if (logging::IsEnabled(logging::eFocus))
logging::ActiveItemChangeCausedBy("DOMMenuBarInactive", accessible);
#endif
}
else if (accessible->NeedsDOMUIEvent() &&
eventType.EqualsLiteral("ValueChange")) {
targetDocument->FireDelayedEvent(nsIAccessibleEvent::EVENT_VALUE_CHANGE,
accessible);
}
#ifdef DEBUG_DRAGDROPSTART
else if (eventType.EqualsLiteral("mouseover")) {
nsEventShell::FireEvent(nsIAccessibleEvent::EVENT_DRAGDROP_START,
accessible);
}
#endif
}
// RootAccessible protected
void
RootAccessible::ProcessDOMEvent(nsIDOMEvent* aDOMEvent)
{
nsCOMPtr<nsIDOMNSEvent> DOMNSEvent(do_QueryInterface(aDOMEvent));
nsCOMPtr<nsIDOMEventTarget> DOMEventTarget;
DOMNSEvent->GetOriginalTarget(getter_AddRefs(DOMEventTarget));
nsCOMPtr<nsINode> origTargetNode(do_QueryInterface(DOMEventTarget));
nsAutoString eventType;
aDOMEvent->GetType(eventType);
if (eventType.EqualsLiteral("popuphiding")) {
HandlePopupHidingEvent(origTargetNode);
return;
}
DocAccessible* targetDocument = GetAccService()->
GetDocAccessible(origTargetNode->OwnerDoc());
NS_ASSERTION(targetDocument, "No document while accessible is in document?!");
Accessible* accessible =
targetDocument->GetAccessibleOrContainer(origTargetNode);
if (!accessible)
return;
nsINode* targetNode = accessible->GetNode();
#ifdef MOZ_XUL
XULTreeAccessible* treeAcc = accessible->AsXULTree();
if (treeAcc) {
if (eventType.EqualsLiteral("TreeRowCountChanged")) {
HandleTreeRowCountChangedEvent(aDOMEvent, treeAcc);
return;
}
if (eventType.EqualsLiteral("TreeInvalidated")) {
HandleTreeInvalidatedEvent(aDOMEvent, treeAcc);
return;
}
}
#endif
if (eventType.EqualsLiteral("RadioStateChange")) {
PRUint64 state = accessible->State();
// radiogroup in prefWindow is exposed as a list,
// and panebutton is exposed as XULListitem in A11y.
// XULListitemAccessible::GetStateInternal uses STATE_SELECTED in this case,
// so we need to check states::SELECTED also.
bool isEnabled = (state & (states::CHECKED | states::SELECTED)) != 0;
nsRefPtr<AccEvent> accEvent =
new AccStateChangeEvent(accessible, states::CHECKED, isEnabled);
nsEventShell::FireEvent(accEvent);
if (isEnabled) {
FocusMgr()->ActiveItemChanged(accessible);
A11YDEBUG_FOCUS_ACTIVEITEMCHANGE_CAUSE("RadioStateChange", accessible)
}
return;
}
void DocAccessibleWrap::CacheViewportCallback(nsITimer* aTimer,
void* aDocAccParam) {
RefPtr<DocAccessibleWrap> docAcc(
dont_AddRef(reinterpret_cast<DocAccessibleWrap*>(aDocAccParam)));
if (!docAcc) {
return;
}
nsIPresShell* presShell = docAcc->PresShell();
if (!presShell) {
return;
}
nsIFrame* rootFrame = presShell->GetRootFrame();
if (!rootFrame) {
return;
}
nsTArray<nsIFrame*> frames;
nsIScrollableFrame* sf = presShell->GetRootScrollFrameAsScrollable();
nsRect scrollPort = sf ? sf->GetScrollPortRect() : rootFrame->GetRect();
nsLayoutUtils::GetFramesForArea(
presShell->GetRootFrame(), scrollPort, frames,
nsLayoutUtils::FrameForPointFlags::ONLY_VISIBLE);
AccessibleHashtable inViewAccs;
for (size_t i = 0; i < frames.Length(); i++) {
nsIContent* content = frames.ElementAt(i)->GetContent();
if (!content) {
continue;
}
Accessible* visibleAcc = docAcc->GetAccessibleOrContainer(content);
if (!visibleAcc) {
continue;
}
for (Accessible* acc = visibleAcc; acc && acc != docAcc->Parent();
acc = acc->Parent()) {
if (inViewAccs.Contains(acc->UniqueID())) {
break;
}
inViewAccs.Put(acc->UniqueID(), acc);
}
}
if (IPCAccessibilityActive()) {
DocAccessibleChild* ipcDoc = docAcc->IPCDoc();
nsTArray<BatchData> cacheData(inViewAccs.Count());
for (auto iter = inViewAccs.Iter(); !iter.Done(); iter.Next()) {
Accessible* accessible = iter.Data();
auto uid = accessible->IsDoc() && accessible->AsDoc()->IPCDoc()
? 0
: reinterpret_cast<uint64_t>(accessible->UniqueID());
cacheData.AppendElement(
BatchData(accessible->Document()->IPCDoc(), uid, accessible->State(),
accessible->Bounds(), accessible->ActionCount(), nsString(),
nsString(), nsString(), UnspecifiedNaN<double>(),
UnspecifiedNaN<double>(), UnspecifiedNaN<double>(),
UnspecifiedNaN<double>(), nsTArray<Attribute>()));
}
ipcDoc->SendBatch(eBatch_Viewport, cacheData);
} else if (SessionAccessibility* sessionAcc =
SessionAccessibility::GetInstanceFor(docAcc)) {
nsTArray<AccessibleWrap*> accessibles(inViewAccs.Count());
for (auto iter = inViewAccs.Iter(); !iter.Done(); iter.Next()) {
accessibles.AppendElement(
static_cast<AccessibleWrap*>(iter.Data().get()));
}
sessionAcc->ReplaceViewportCache(accessibles);
}
if (docAcc->mCacheRefreshTimer) {
docAcc->mCacheRefreshTimer = nullptr;
}
}
