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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_xpcAccessibleDocument_h_
#define mozilla_a11y_xpcAccessibleDocument_h_
#include "nsIAccessibleDocument.h"
#include "DocAccessible.h"
#include "nsAccessibilityService.h"
#include "xpcAccessibleApplication.h"
#include "xpcAccessibleHyperText.h"
namespace mozilla {
namespace a11y {
/**
* XPCOM wrapper around DocAccessible class.
*/
class xpcAccessibleDocument : public xpcAccessibleHyperText,
public nsIAccessibleDocument
{
public:
explicit xpcAccessibleDocument(DocAccessible* aIntl) :
xpcAccessibleHyperText(aIntl), mCache(kDefaultCacheLength), mRemote(false) { }
xpcAccessibleDocument(ProxyAccessible* aProxy, uint32_t aInterfaces) :
xpcAccessibleHyperText(aProxy, aInterfaces), mCache(kDefaultCacheLength),
mRemote(true) {}
NS_DECL_ISUPPORTS_INHERITED
NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(xpcAccessibleDocument,
xpcAccessibleGeneric)
// nsIAccessibleDocument
NS_IMETHOD GetURL(nsAString& aURL) final override;
NS_IMETHOD GetTitle(nsAString& aTitle) final override;
NS_IMETHOD GetMimeType(nsAString& aType) final override;
NS_IMETHOD GetDocType(nsAString& aType) final override;
NS_IMETHOD GetDOMDocument(nsIDOMDocument** aDOMDocument) final override;
NS_IMETHOD GetWindow(mozIDOMWindowProxy** aDOMWindow) final override;
NS_IMETHOD GetParentDocument(nsIAccessibleDocument** aDocument)
final override;
NS_IMETHOD GetChildDocumentCount(uint32_t* aCount) final override;
NS_IMETHOD GetChildDocumentAt(uint32_t aIndex,
nsIAccessibleDocument** aDocument)
final override;
NS_IMETHOD GetVirtualCursor(nsIAccessiblePivot** aVirtualCursor)
final override;
/**
* Return XPCOM wrapper for the internal accessible.
*/
xpcAccessibleGeneric* GetAccessible(Accessible* aAccessible);
xpcAccessibleGeneric* GetXPCAccessible(ProxyAccessible* aProxy);
virtual void Shutdown() override;
protected:
virtual ~xpcAccessibleDocument() {}
private:
DocAccessible* Intl()
{
if (Accessible* acc = mIntl.AsAccessible()) {
return acc->AsDoc();
}
return nullptr;
}
void NotifyOfShutdown(Accessible* aAccessible)
{
MOZ_ASSERT(!mRemote);
xpcAccessibleGeneric* xpcAcc = mCache.GetWeak(aAccessible);
if (xpcAcc)
xpcAcc->Shutdown();
mCache.Remove(aAccessible);
}
void NotifyOfShutdown(ProxyAccessible* aProxy)
{
MOZ_ASSERT(mRemote);
xpcAccessibleGeneric* acc = mCache.GetWeak(aProxy);
if (acc) {
acc->Shutdown();
}
mCache.Remove(aProxy);
}
friend class DocManager;
friend class DocAccessible;
friend class ProxyAccessible;
friend class ProxyAccessibleBase<ProxyAccessible>;
xpcAccessibleDocument(const xpcAccessibleDocument&) = delete;
xpcAccessibleDocument& operator =(const xpcAccessibleDocument&) = delete;
nsRefPtrHashtable<nsPtrHashKey<const void>, xpcAccessibleGeneric> mCache;
bool mRemote;
};
inline xpcAccessibleGeneric*
ToXPC(Accessible* aAccessible)
{
if (!aAccessible)
return nullptr;
if (aAccessible->IsApplication())
return XPCApplicationAcc();
xpcAccessibleDocument* xpcDoc =
GetAccService()->GetXPCDocument(aAccessible->Document());
return xpcDoc ? xpcDoc->GetAccessible(aAccessible) : nullptr;
}
xpcAccessibleGeneric* ToXPC(AccessibleOrProxy aAcc);
inline xpcAccessibleHyperText*
ToXPCText(HyperTextAccessible* aAccessible)
{
if (!aAccessible)
return nullptr;
xpcAccessibleDocument* xpcDoc =
GetAccService()->GetXPCDocument(aAccessible->Document());
return static_cast<xpcAccessibleHyperText*>(xpcDoc->GetAccessible(aAccessible));
}
inline xpcAccessibleDocument*
ToXPCDocument(DocAccessible* aAccessible)
{
return GetAccService()->GetXPCDocument(aAccessible);
}
inline xpcAccessibleDocument*
ToXPCDocument(DocAccessibleParent* aAccessible)
{
return GetAccService()->GetXPCDocument(aAccessible);
}
} // namespace a11y
} // namespace mozilla
#endif
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