141 lines
3.7 KiB
C++
141 lines
3.7 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this file,
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* You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef mozilla_a11y_DocAccessible_inl_h_
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#define mozilla_a11y_DocAccessible_inl_h_
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#include "DocAccessible.h"
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#include "nsAccessibilityService.h"
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#include "nsAccessiblePivot.h"
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#include "NotificationController.h"
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#include "States.h"
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#include "nsIScrollableFrame.h"
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#ifdef A11Y_LOG
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#include "Logging.h"
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#endif
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namespace mozilla {
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namespace a11y {
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inline nsIAccessiblePivot*
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DocAccessible::VirtualCursor()
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{
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if (!mVirtualCursor) {
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mVirtualCursor = new nsAccessiblePivot(this);
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mVirtualCursor->AddObserver(this);
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}
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return mVirtualCursor;
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}
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inline void
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DocAccessible::FireDelayedEvent(AccEvent* aEvent)
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{
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#ifdef A11Y_LOG
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if (logging::IsEnabled(logging::eDocLoad))
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logging::DocLoadEventFired(aEvent);
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#endif
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mNotificationController->QueueEvent(aEvent);
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}
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inline void
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DocAccessible::FireDelayedEvent(uint32_t aEventType, Accessible* aTarget)
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{
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RefPtr<AccEvent> event = new AccEvent(aEventType, aTarget);
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FireDelayedEvent(event);
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}
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inline void
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DocAccessible::BindChildDocument(DocAccessible* aDocument)
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{
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mNotificationController->ScheduleChildDocBinding(aDocument);
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}
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template<class Class, class Arg>
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inline void
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DocAccessible::HandleNotification(Class* aInstance,
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typename TNotification<Class, Arg>::Callback aMethod,
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Arg* aArg)
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{
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if (mNotificationController) {
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mNotificationController->HandleNotification<Class, Arg>(aInstance,
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aMethod, aArg);
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}
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}
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inline void
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DocAccessible::UpdateText(nsIContent* aTextNode)
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{
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NS_ASSERTION(mNotificationController, "The document was shut down!");
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// Ignore the notification if initial tree construction hasn't been done yet.
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if (mNotificationController && HasLoadState(eTreeConstructed))
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mNotificationController->ScheduleTextUpdate(aTextNode);
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}
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inline void
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DocAccessible::AddScrollListener()
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{
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// Delay scroll initializing until the document has a root frame.
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if (!mPresShell->GetRootFrame())
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return;
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mDocFlags |= eScrollInitialized;
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nsIScrollableFrame* sf = mPresShell->GetRootScrollFrameAsScrollable();
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if (sf) {
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sf->AddScrollPositionListener(this);
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#ifdef A11Y_LOG
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if (logging::IsEnabled(logging::eDocCreate))
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logging::Text("add scroll listener");
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#endif
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}
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}
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inline void
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DocAccessible::RemoveScrollListener()
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{
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nsIScrollableFrame* sf = mPresShell->GetRootScrollFrameAsScrollable();
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if (sf)
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sf->RemoveScrollPositionListener(this);
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}
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inline void
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DocAccessible::NotifyOfLoad(uint32_t aLoadEventType)
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{
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mLoadState |= eDOMLoaded;
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mLoadEventType = aLoadEventType;
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// If the document is loaded completely then network activity was presumingly
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// caused by file loading. Fire busy state change event.
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if (HasLoadState(eCompletelyLoaded) && IsLoadEventTarget()) {
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RefPtr<AccEvent> stateEvent =
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new AccStateChangeEvent(this, states::BUSY, false);
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FireDelayedEvent(stateEvent);
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}
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}
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inline void
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DocAccessible::MaybeNotifyOfValueChange(Accessible* aAccessible)
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{
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a11y::role role = aAccessible->Role();
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if (role == roles::ENTRY || role == roles::COMBOBOX)
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FireDelayedEvent(nsIAccessibleEvent::EVENT_TEXT_VALUE_CHANGE, aAccessible);
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}
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inline Accessible*
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DocAccessible::GetAccessibleEvenIfNotInMapOrContainer(nsINode* aNode) const
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{
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Accessible* acc = GetAccessibleEvenIfNotInMap(aNode);
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return acc ? acc : GetContainerAccessible(aNode);
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}
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} // namespace a11y
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} // namespace mozilla
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#endif
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