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authorMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
committerMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
commit5f8de423f190bbb79a62f804151bc24824fa32d8 (patch)
tree10027f336435511475e392454359edea8e25895d /accessible/generic/DocAccessible-inl.h
parent49ee0794b5d912db1f95dce6eb52d781dc210db5 (diff)
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Add m-esr52 at 52.6.0
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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 "nsIDocumentInlines.h"
+
+#ifdef A11Y_LOG
+#include "Logging.h"
+#endif
+
+namespace mozilla {
+namespace a11y {
+
+inline Accessible*
+DocAccessible::AccessibleOrTrueContainer(nsINode* aNode) const
+{
+ // HTML comboboxes have no-content list accessible as an intermediate
+ // containing all options.
+ Accessible* container = GetAccessibleOrContainer(aNode);
+ if (container && container->IsHTMLCombobox()) {
+ return container->FirstChild();
+ }
+ return container;
+}
+
+inline nsIAccessiblePivot*
+DocAccessible::VirtualCursor()
+{
+ if (!mVirtualCursor) {
+ mVirtualCursor = new nsAccessiblePivot(this);
+ mVirtualCursor->AddObserver(this);
+ }
+ return mVirtualCursor;
+}
+
+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, Accessible* aTarget)
+{
+ RefPtr<AccEvent> event = new AccEvent(aEventType, aTarget);
+ FireDelayedEvent(event);
+}
+
+inline void
+DocAccessible::BindChildDocument(DocAccessible* aDocument)
+{
+ mNotificationController->ScheduleChildDocBinding(aDocument);
+}
+
+template<class Class, class Arg>
+inline void
+DocAccessible::HandleNotification(Class* aInstance,
+ typename TNotification<Class, Arg>::Callback aMethod,
+ Arg* aArg)
+{
+ if (mNotificationController) {
+ mNotificationController->HandleNotification<Class, Arg>(aInstance,
+ aMethod, aArg);
+ }
+}
+
+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::AddScrollListener()
+{
+ // Delay scroll initializing until the document has a root frame.
+ if (!mPresShell->GetRootFrame())
+ return;
+
+ mDocFlags |= eScrollInitialized;
+ nsIScrollableFrame* sf = mPresShell->GetRootScrollFrameAsScrollable();
+ if (sf) {
+ sf->AddScrollPositionListener(this);
+
+#ifdef A11Y_LOG
+ if (logging::IsEnabled(logging::eDocCreate))
+ logging::Text("add scroll listener");
+#endif
+ }
+}
+
+inline void
+DocAccessible::RemoveScrollListener()
+{
+ nsIScrollableFrame* sf = mPresShell->GetRootScrollFrameAsScrollable();
+ if (sf)
+ sf->RemoveScrollPositionListener(this);
+}
+
+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(Accessible* aAccessible)
+{
+ a11y::role role = aAccessible->Role();
+ if (role == roles::ENTRY || role == roles::COMBOBOX)
+ FireDelayedEvent(nsIAccessibleEvent::EVENT_TEXT_VALUE_CHANGE, aAccessible);
+}
+
+inline Accessible*
+DocAccessible::GetAccessibleEvenIfNotInMapOrContainer(nsINode* aNode) const
+{
+ Accessible* acc = GetAccessibleEvenIfNotInMap(aNode);
+ return acc ? acc : GetContainerAccessible(aNode);
+}
+
+inline void
+DocAccessible::CreateSubtree(Accessible* 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.
+ Accessible* 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());
+ }
+}
+
+} // namespace a11y
+} // namespace mozilla
+
+#endif