/* 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_DocAccessible_inl_h_
#define mozilla_a11y_DocAccessible_inl_h_
#include "DocAccessible.h"
#include "LocalAccessible-inl.h"
#include "nsAccessibilityService.h"
#include "NotificationController.h"
#include "States.h"
#include "mozilla/dom/DocumentInlines.h"
#ifdef A11Y_LOG
# include
"Logging.h"
#endif
namespace mozilla {
namespace a11y {
inline LocalAccessible* DocAccessible::AccessibleOrTrueContainer(
nsINode* aNode,
bool aNoContainerIfPruned)
const {
// HTML comboboxes have no-content list accessible as an intermediate
// containing all options.
LocalAccessible* container =
GetAccessibleOrContainer(aNode, aNoContainerIfPruned);
if (container && container->IsHTMLCombobox()) {
return container->LocalFirstChild();
}
return container;
}
inline bool DocAccessible::IsContentLoaded()
const {
// eDOMLoaded flag check is used for error pages as workaround to make this
// method return correct result since error pages do not receive 'pageshow'
// event and as consequence Document::IsShowing() returns false.
return mDocumentNode && mDocumentNode->IsVisible() &&
(mDocumentNode->IsShowing() || HasLoadState(eDOMLoaded));
}
inline bool DocAccessible::IsHidden()
const {
return mDocumentNode->Hidden(); }
inline void DocAccessible::FireDelayedEvent(AccEvent* aEvent) {
#ifdef A11Y_LOG
if (logging::IsEnabled(logging::eDocLoad)) logging::DocLoadEventFired(aEvent);
#endif
mNotificationController->QueueEvent(aEvent);
}
inline void DocAccessible::FireDelayedEvent(uint32_t aEventType,
LocalAccessible* aTarget) {
auto event = MakeRefPtr<AccEvent>(aEventType, aTarget);
FireDelayedEvent(event);
}
template <
class Class,
class... Args>
inline void DocAccessible::HandleNotification(
Class* aInstance, typename TNotification<
Class, Args...>::Callback aMethod,
Args*... aArgs) {
if (mNotificationController) {
mNotificationController->HandleNotification<
Class, Args...>(
aInstance, aMethod, aArgs...);
}
}
inline void DocAccessible::UpdateText(nsIContent* aTextNode) {
NS_ASSERTION(mNotificationController,
"The document was shut down!");
MOZ_ASSERT(aTextNode->IsText());
// Ignore the notification if initial tree construction hasn't been done yet.
if (!mNotificationController || !HasLoadState(eTreeConstructed)) {
return;
}
nsINode* parent = aTextNode->GetParent();
if (parent && parent->IsGeneratedContentContainerForMarker()) {
// This is the text of a bullet. Accessibility handles bullets differently
// to normal text. Instead of creating a TextLeafAccessible and caching the
// text on it, HTMLListBulletAccessible retrieves the text directly from
// layout, so any update is reflected immediately. That means we need to
// invalidate cached HyperText offsets immediately.
LocalAccessible* bullet = mDoc->GetAccessible(parent);
if (!bullet) {
return;
}
mDoc->QueueCacheUpdate(bullet, CacheDomain::Text);
HyperTextAccessible* container =
bullet->LocalParent() ? bullet->LocalParent()->AsHyperText() : nullptr;
if (container) {
int32_t offset =
container->GetChildOffset(bullet,
/* aInvalidateAfter */ true);
nsAutoString text;
bullet->AppendTextTo(text);
auto event =
MakeRefPtr<AccTextChangeEvent>(container, offset, text, true);
mDoc->FireDelayedEvent(event);
}
return;
}
mNotificationController->ScheduleTextUpdate(aTextNode);
}
inline void DocAccessible::NotifyOfLoad(uint32_t aLoadEventType) {
mLoadState |= eDOMLoaded;
mLoadEventType = aLoadEventType;
// If the document is loaded completely then network activity was presumingly
// caused by file loading. Fire busy state change event.
if (HasLoadState(eCompletelyLoaded) && IsLoadEventTarget()) {
auto stateEvent =
MakeRefPtr<AccStateChangeEvent>(this, states::BUSY,
false);
FireDelayedEvent(stateEvent);
}
}
inline void DocAccessible::MaybeNotifyOfValueChange(
LocalAccessible* aAccessible) {
if (aAccessible->IsCombobox() || aAccessible->IsPassword() ||
aAccessible->Role() == roles::ENTRY ||
aAccessible->Role() == roles::SPINBUTTON) {
FireDelayedEvent(nsIAccessibleEvent::EVENT_TEXT_VALUE_CHANGE, aAccessible);
}
}
inline LocalAccessible* DocAccessible::GetAccessibleEvenIfNotInMapOrContainer(
nsINode* aNode)
const {
LocalAccessible* acc = GetAccessibleEvenIfNotInMap(aNode);
return acc ? acc : GetContainerAccessible(aNode);
}
inline void DocAccessible::CreateSubtree(LocalAccessible* aChild) {
// If a focused node has been shown then it could mean its frame was recreated
// while the node stays focused and we need to fire focus event on
// the accessible we just created. If the queue contains a focus event for
// this node already then it will be suppressed by this one.
LocalAccessible* focusedAcc = nullptr;
CacheChildrenInSubtree(aChild, &focusedAcc);
#ifdef A11Y_LOG
if (logging::IsEnabled(logging::eVerbose)) {
logging::Tree(
"TREE",
"Created subtree", aChild);
}
#endif
// XXX: do we really want to send focus to focused DOM node not taking into
// account active item?
if (focusedAcc) {
FocusMgr()->DispatchFocusEvent(this, focusedAcc);
SelectionMgr()->SetControlSelectionListener(
focusedAcc->GetNode()->AsElement());
}
}
inline DocAccessible::AttrRelProviders* DocAccessible::GetRelProviders(
dom::Element* aElement, nsAtom* aID)
const {
DependentIDsHashtable* hash = mDependentIDsHashes.Get(
aElement->GetUncomposedDocOrConnectedShadowRoot());
if (hash) {
return hash->Get(aID);
}
return nullptr;
}
inline DocAccessible::AttrRelProviders* DocAccessible::GetOrCreateRelProviders(
dom::Element* aElement, nsAtom* aID) {
// TODO (bug 1983819): need to update when reference targets change
dom::DocumentOrShadowRoot* docOrShadowRoot =
aElement->GetUncomposedDocOrConnectedShadowRoot();
DependentIDsHashtable* hash =
mDependentIDsHashes.GetOrInsertNew(docOrShadowRoot);
return hash->GetOrInsertNew(aID);
}
inline void DocAccessible::RemoveRelProvidersIfEmpty(dom::Element* aElement,
nsAtom* aID) {
dom::DocumentOrShadowRoot* docOrShadowRoot =
aElement->GetUncomposedDocOrConnectedShadowRoot();
DependentIDsHashtable* hash = mDependentIDsHashes.Get(docOrShadowRoot);
if (hash) {
AttrRelProviders* providers = hash->Get(aID);
if (providers && providers->Length() ==
0) {
hash->Remove(aID);
if (mDependentIDsHashes.IsEmpty()) {
mDependentIDsHashes.Remove(docOrShadowRoot);
}
}
}
}
}
// namespace a11y
}
// namespace mozilla
#endif