diff options
Diffstat (limited to 'accessible/xpcom/xpcAccessibleDocument.cpp')
| -rw-r--r-- | accessible/xpcom/xpcAccessibleDocument.cpp | 262 |
1 files changed, 262 insertions, 0 deletions
diff --git a/accessible/xpcom/xpcAccessibleDocument.cpp b/accessible/xpcom/xpcAccessibleDocument.cpp new file mode 100644 index 000000000..055cb8a86 --- /dev/null +++ b/accessible/xpcom/xpcAccessibleDocument.cpp @@ -0,0 +1,262 @@ +/* -*- 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/. */ + +#include "xpcAccessibleDocument.h" +#include "xpcAccessibleImage.h" +#include "xpcAccessibleTable.h" +#include "xpcAccessibleTableCell.h" + +#include "mozilla/a11y/DocAccessibleParent.h" +#include "DocAccessible-inl.h" +#include "nsIDOMDocument.h" + +using namespace mozilla; +using namespace mozilla::a11y; + +//////////////////////////////////////////////////////////////////////////////// +// nsISupports and cycle collection + +NS_IMPL_CYCLE_COLLECTION_CLASS(xpcAccessibleDocument) + +NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN_INHERITED(xpcAccessibleDocument, + xpcAccessibleGeneric) + NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mCache) +NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END + +NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN_INHERITED(xpcAccessibleDocument, + xpcAccessibleGeneric) + tmp->mCache.Clear(); +NS_IMPL_CYCLE_COLLECTION_UNLINK_END + +NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION_INHERITED(xpcAccessibleDocument) + NS_INTERFACE_MAP_ENTRY(nsIAccessibleDocument) +NS_INTERFACE_MAP_END_INHERITING(xpcAccessibleHyperText) + +NS_IMPL_ADDREF_INHERITED(xpcAccessibleDocument, xpcAccessibleHyperText) +NS_IMPL_RELEASE_INHERITED(xpcAccessibleDocument, xpcAccessibleHyperText) + +//////////////////////////////////////////////////////////////////////////////// +// nsIAccessibleDocument + +NS_IMETHODIMP +xpcAccessibleDocument::GetURL(nsAString& aURL) +{ + if (!Intl()) + return NS_ERROR_FAILURE; + + Intl()->URL(aURL); + return NS_OK; +} + +NS_IMETHODIMP +xpcAccessibleDocument::GetTitle(nsAString& aTitle) +{ + if (!Intl()) + return NS_ERROR_FAILURE; + + nsAutoString title; + Intl()->Title(title); + aTitle = title; + return NS_OK; +} + +NS_IMETHODIMP +xpcAccessibleDocument::GetMimeType(nsAString& aType) +{ + if (!Intl()) + return NS_ERROR_FAILURE; + + Intl()->MimeType(aType); + return NS_OK; +} + +NS_IMETHODIMP +xpcAccessibleDocument::GetDocType(nsAString& aType) +{ + if (!Intl()) + return NS_ERROR_FAILURE; + + Intl()->DocType(aType); + return NS_OK; +} + +NS_IMETHODIMP +xpcAccessibleDocument::GetDOMDocument(nsIDOMDocument** aDOMDocument) +{ + NS_ENSURE_ARG_POINTER(aDOMDocument); + *aDOMDocument = nullptr; + + if (!Intl()) + return NS_ERROR_FAILURE; + + if (Intl()->DocumentNode()) + CallQueryInterface(Intl()->DocumentNode(), aDOMDocument); + + return NS_OK; +} + +NS_IMETHODIMP +xpcAccessibleDocument::GetWindow(mozIDOMWindowProxy** aDOMWindow) +{ + NS_ENSURE_ARG_POINTER(aDOMWindow); + *aDOMWindow = nullptr; + + if (!Intl()) + return NS_ERROR_FAILURE; + + NS_IF_ADDREF(*aDOMWindow = Intl()->DocumentNode()->GetWindow()); + return NS_OK; +} + +NS_IMETHODIMP +xpcAccessibleDocument::GetParentDocument(nsIAccessibleDocument** aDocument) +{ + NS_ENSURE_ARG_POINTER(aDocument); + *aDocument = nullptr; + + if (!Intl()) + return NS_ERROR_FAILURE; + + NS_IF_ADDREF(*aDocument = ToXPCDocument(Intl()->ParentDocument())); + return NS_OK; +} + +NS_IMETHODIMP +xpcAccessibleDocument::GetChildDocumentCount(uint32_t* aCount) +{ + NS_ENSURE_ARG_POINTER(aCount); + *aCount = 0; + + if (!Intl()) + return NS_ERROR_FAILURE; + + *aCount = Intl()->ChildDocumentCount(); + return NS_OK; +} + +NS_IMETHODIMP +xpcAccessibleDocument::GetChildDocumentAt(uint32_t aIndex, + nsIAccessibleDocument** aDocument) +{ + NS_ENSURE_ARG_POINTER(aDocument); + *aDocument = nullptr; + + if (!Intl()) + return NS_ERROR_FAILURE; + + NS_IF_ADDREF(*aDocument = ToXPCDocument(Intl()->GetChildDocumentAt(aIndex))); + return *aDocument ? NS_OK : NS_ERROR_INVALID_ARG; +} + +NS_IMETHODIMP +xpcAccessibleDocument::GetVirtualCursor(nsIAccessiblePivot** aVirtualCursor) +{ + NS_ENSURE_ARG_POINTER(aVirtualCursor); + *aVirtualCursor = nullptr; + + if (!Intl()) + return NS_ERROR_FAILURE; + + NS_ADDREF(*aVirtualCursor = Intl()->VirtualCursor()); + return NS_OK; +} + +//////////////////////////////////////////////////////////////////////////////// +// xpcAccessibleDocument + +xpcAccessibleGeneric* +xpcAccessibleDocument::GetAccessible(Accessible* aAccessible) +{ + MOZ_ASSERT(!mRemote); + if (ToXPCDocument(aAccessible->Document()) != this) { + NS_ERROR("This XPCOM document is not related with given internal accessible!"); + return nullptr; + } + + if (aAccessible->IsDoc()) + return this; + + xpcAccessibleGeneric* xpcAcc = mCache.GetWeak(aAccessible); + if (xpcAcc) + return xpcAcc; + + if (aAccessible->IsImage()) + xpcAcc = new xpcAccessibleImage(aAccessible); + else if (aAccessible->IsTable()) + xpcAcc = new xpcAccessibleTable(aAccessible); + else if (aAccessible->IsTableCell()) + xpcAcc = new xpcAccessibleTableCell(aAccessible); + else if (aAccessible->IsHyperText()) + xpcAcc = new xpcAccessibleHyperText(aAccessible); + else + xpcAcc = new xpcAccessibleGeneric(aAccessible); + + mCache.Put(aAccessible, xpcAcc); + return xpcAcc; +} + +xpcAccessibleGeneric* +xpcAccessibleDocument::GetXPCAccessible(ProxyAccessible* aProxy) +{ + MOZ_ASSERT(mRemote); + MOZ_ASSERT(aProxy->Document() == mIntl.AsProxy()); + if (aProxy->IsDoc()) { + return this; + } + + xpcAccessibleGeneric* acc = mCache.GetWeak(aProxy); + if (acc) { + return acc; + } + + // XXX support exposing optional interfaces. + uint8_t interfaces = 0; + if (aProxy->mHasValue) { + interfaces |= eValue; + } + + if (aProxy->mIsHyperLink) { + interfaces |= eHyperLink; + } + + if (aProxy->mIsHyperText) { + interfaces |= eText; + acc = new xpcAccessibleHyperText(aProxy, interfaces); + mCache.Put(aProxy, acc); + + return acc; + } + + acc = new xpcAccessibleGeneric(aProxy, interfaces); + mCache.Put(aProxy, acc); + + return acc; +} + +void +xpcAccessibleDocument::Shutdown() +{ + for (auto iter = mCache.Iter(); !iter.Done(); iter.Next()) { + iter.Data()->Shutdown(); + iter.Remove(); + } + xpcAccessibleGeneric::Shutdown(); +} + +xpcAccessibleGeneric* +a11y::ToXPC(AccessibleOrProxy aAcc) +{ + if (aAcc.IsNull()) { + return nullptr; + } + + if (aAcc.IsAccessible()) { + return ToXPC(aAcc.AsAccessible()); + } + + xpcAccessibleDocument* doc = ToXPCDocument(aAcc.AsProxy()->Document()); + return doc->GetXPCAccessible(aAcc.AsProxy()); +} |