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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(Accessible* aIntl)
: xpcAccessibleHyperText(aIntl),
mCache(kDefaultCacheLength),
mRemote(aIntl->IsRemote()) {
// XXX: Once there is a base doc class that both remote and local
// accessibles inherit, we can add the type to the prototype and remove this
// assert.
MOZ_ASSERT(aIntl->IsDoc());
}
NS_DECL_ISUPPORTS_INHERITED
// nsIAccessibleDocument
NS_IMETHOD GetURL(nsAString& aURL) final;
NS_IMETHOD GetTitle(nsAString& aTitle) final;
NS_IMETHOD GetMimeType(nsAString& aType) final;
NS_IMETHOD GetDocType(nsAString& aType) final;
NS_IMETHOD GetDOMDocument(dom::Document** aDOMDocument) final;
NS_IMETHOD GetWindow(mozIDOMWindowProxy** aDOMWindow) final;
NS_IMETHOD GetParentDocument(nsIAccessibleDocument** aDocument) final;
NS_IMETHOD GetChildDocumentCount(uint32_t* aCount) final;
NS_IMETHOD GetChildDocumentAt(uint32_t aIndex,
nsIAccessibleDocument** aDocument) final;
NS_IMETHOD GetVirtualCursor(nsIAccessiblePivot** aVirtualCursor) final;
/**
* Return XPCOM wrapper for the internal accessible.
*/
xpcAccessibleGeneric* GetAccessible(Accessible* aAccessible);
virtual void Shutdown() override;
protected:
virtual ~xpcAccessibleDocument() {}
private:
DocAccessible* Intl() {
if (LocalAccessible* acc = mIntl->AsLocal()) {
return acc->AsDoc();
}
return nullptr;
}
void NotifyOfShutdown(Accessible* aAccessible) {
xpcAccessibleGeneric* xpcAcc = mCache.Get(aAccessible);
if (xpcAcc) {
xpcAcc->Shutdown();
}
mCache.Remove(aAccessible);
if (mCache.Count() == 0 && mRefCnt == 1) {
if (mIntl->IsLocal()) {
GetAccService()->RemoveFromXPCDocumentCache(mIntl->AsLocal()->AsDoc());
} else {
GetAccService()->RemoveFromRemoteXPCDocumentCache(
mIntl->AsRemote()->AsDoc());
}
}
}
friend class DocManager;
friend class DocAccessible;
friend class RemoteAccessible;
friend class RemoteAccessibleBase<RemoteAccessible>;
friend class xpcAccessibleGeneric;
xpcAccessibleDocument(const xpcAccessibleDocument&) = delete;
xpcAccessibleDocument& operator=(const xpcAccessibleDocument&) = delete;
nsTHashMap<nsPtrHashKey<const void>, xpcAccessibleGeneric*> mCache;
bool mRemote;
};
inline xpcAccessibleGeneric* ToXPC(Accessible* aAccessible) {
if (!aAccessible) return nullptr;
if (aAccessible->IsApplication()) return XPCApplicationAcc();
xpcAccessibleDocument* xpcDoc =
aAccessible->IsLocal()
? GetAccService()->GetXPCDocument(aAccessible->AsLocal()->Document())
: GetAccService()->GetXPCDocument(
aAccessible->AsRemote()->Document());
return xpcDoc ? xpcDoc->GetAccessible(aAccessible) : nullptr;
}
inline xpcAccessibleHyperText* ToXPCText(Accessible* aAccessible) {
if (!aAccessible || !aAccessible->IsHyperText()) {
return nullptr;
}
xpcAccessibleDocument* xpcDoc =
aAccessible->IsLocal()
? GetAccService()->GetXPCDocument(aAccessible->AsLocal()->Document())
: nsAccessibilityService::GetXPCDocument(
aAccessible->AsRemote()->Document());
return static_cast<xpcAccessibleHyperText*>(
xpcDoc ? xpcDoc->GetAccessible(aAccessible) : nullptr);
}
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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