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/* -*- 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_DocAccessible_inl_h_
#define mozilla_a11y_DocAccessible_inl_h_
#include "DocAccessible.h"
#include "nsAccessibilityService.h"
#include "nsAccessiblePivot.h"
#include "NotificationController.h"
#include "States.h"
#include "nsIScrollableFrame.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 nsIAccessiblePivot* DocAccessible::VirtualCursor() {
if (!mVirtualCursor) {
mVirtualCursor = new nsAccessiblePivot(this);
mVirtualCursor->AddObserver(this);
}
return mVirtualCursor;
}
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) {
RefPtr<AccEvent> event = new AccEvent(aEventType, aTarget);
FireDelayedEvent(event);
}
inline void DocAccessible::BindChildDocument(DocAccessible* aDocument) {
mNotificationController->ScheduleChildDocBinding(aDocument);
}
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!");
// Ignore the notification if initial tree construction hasn't been done yet.
if (mNotificationController && HasLoadState(eTreeConstructed)) {
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()) {
RefPtr<AccEvent> stateEvent =
new AccStateChangeEvent(this, states::BUSY, false);
FireDelayedEvent(stateEvent);
}
}
inline void DocAccessible::MaybeNotifyOfValueChange(
LocalAccessible* aAccessible) {
if (aAccessible->IsCombobox() || 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
// Fire events for ARIA elements.
if (aChild->HasARIARole()) {
roles::Role role = aChild->ARIARole();
if (role == roles::MENUPOPUP) {
FireDelayedEvent(nsIAccessibleEvent::EVENT_MENUPOPUP_START, aChild);
} else if (role == roles::ALERT) {
FireDelayedEvent(nsIAccessibleEvent::EVENT_ALERT, aChild);
}
}
// 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, const nsAString& aID) const {
DependentIDsHashtable* hash = mDependentIDsHashes.Get(
aElement->GetUncomposedDocOrConnectedShadowRoot());
if (hash) {
return hash->Get(aID);
}
return nullptr;
}
inline DocAccessible::AttrRelProviders* DocAccessible::GetOrCreateRelProviders(
dom::Element* aElement, const nsAString& aID) {
dom::DocumentOrShadowRoot* docOrShadowRoot =
aElement->GetUncomposedDocOrConnectedShadowRoot();
DependentIDsHashtable* hash =
mDependentIDsHashes.GetOrInsertNew(docOrShadowRoot);
return hash->GetOrInsertNew(aID);
}
inline void DocAccessible::RemoveRelProvidersIfEmpty(dom::Element* aElement,
const nsAString& 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
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