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;
}
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;
}
NS_IMETHODIMP
nsAccessiblePivot::MoveToPoint(nsIAccessibleTraversalRule* aRule,
int32_t aX, int32_t aY, bool aIgnoreNoMatch,
bool aIsFromUserInput, uint8_t aArgc,
bool* aResult)
{
NS_ENSURE_ARG_POINTER(aResult);
NS_ENSURE_ARG_POINTER(aRule);
*aResult = false;
Accessible* root = GetActiveRoot();
NS_ENSURE_TRUE(root && !root->IsDefunct(), NS_ERROR_NOT_IN_TREE);
RuleCache cache(aRule);
Accessible* match = nullptr;
Accessible* child = root->ChildAtPoint(aX, aY, Accessible::eDeepestChild);
while (child && root != child) {
uint16_t filtered = nsIAccessibleTraversalRule::FILTER_IGNORE;
nsresult rv = cache.ApplyFilter(child, &filtered);
NS_ENSURE_SUCCESS(rv, rv);
// Ignore any matching nodes that were below this one
if (filtered & nsIAccessibleTraversalRule::FILTER_IGNORE_SUBTREE)
match = nullptr;
// Match if no node below this is a match
if ((filtered & nsIAccessibleTraversalRule::FILTER_MATCH) && !match) {
nsIntRect childRect = child->Bounds();
// Double-check child's bounds since the deepest child may have been out
// of bounds. This assures we don't return a false positive.
if (aX >= childRect.x && aX < childRect.x + childRect.width &&
aY >= childRect.y && aY < childRect.y + childRect.height)
match = child;
}
child = child->Parent();
}
if (match || !aIgnoreNoMatch)
*aResult = MovePivotInternal(match, nsIAccessiblePivot::REASON_POINT,
(aArgc > 0) ? aIsFromUserInput : true);
return NS_OK;
}
void DocAccessibleWrap::UpdateFocusPathBounds() {
if (!mFocusPath.Count()) {
return;
}
if (IPCAccessibilityActive()) {
DocAccessibleChild* ipcDoc = IPCDoc();
nsTArray<BatchData> boundsData(mFocusPath.Count());
for (auto iter = mFocusPath.Iter(); !iter.Done(); iter.Next()) {
Accessible* accessible = iter.Data();
if (!accessible || accessible->IsDefunct()) {
MOZ_ASSERT_UNREACHABLE("Focus path cached accessible is gone.");
continue;
}
auto uid = accessible->IsDoc() && accessible->AsDoc()->IPCDoc()
? 0
: reinterpret_cast<uint64_t>(accessible->UniqueID());
boundsData.AppendElement(BatchData(
accessible->Document()->IPCDoc(), uid, 0, accessible->Bounds(), 0,
nsString(), nsString(), nsString(), UnspecifiedNaN<double>(),
UnspecifiedNaN<double>(), UnspecifiedNaN<double>(),
UnspecifiedNaN<double>(), nsTArray<Attribute>()));
}
ipcDoc->SendBatch(eBatch_BoundsUpdate, boundsData);
} else if (SessionAccessibility* sessionAcc =
SessionAccessibility::GetInstanceFor(this)) {
nsTArray<AccessibleWrap*> accessibles(mFocusPath.Count());
for (auto iter = mFocusPath.Iter(); !iter.Done(); iter.Next()) {
accessibles.AppendElement(
static_cast<AccessibleWrap*>(iter.Data().get()));
}
sessionAcc->UpdateCachedBounds(accessibles);
}
}
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;
}
}