forked from mirrors/gecko-dev
196146ecb6
The BrowsingContext already has this information, so we use that instead of redundantly caching it in RemoteAccessible. This implementation works even when the a11y cache is disabled, so stop using the sync IPDL URL method. We can't entirely unify the URL method because we don't have a base class for local/remote documents. However, a method was added in nsAccUtils to unify this as much as possible. Differential Revision: https://phabricator.services.mozilla.com/D147717
144 lines
4.5 KiB
C++
144 lines
4.5 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
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "InterfaceInitFuncs.h"
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#include "LocalAccessible-inl.h"
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#include "AccessibleWrap.h"
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#include "DocAccessible.h"
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#include "nsMai.h"
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#include "RemoteAccessible.h"
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#include "mozilla/a11y/DocAccessibleParent.h"
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#include "mozilla/Likely.h"
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using namespace mozilla::a11y;
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static const char* const kDocTypeName = "W3C-doctype";
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static const char* const kDocUrlName = "DocURL";
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static const char* const kMimeTypeName = "MimeType";
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// below functions are vfuncs on an ATK interface so they need to be C call
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extern "C" {
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static const gchar* getDocumentLocaleCB(AtkDocument* aDocument);
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static AtkAttributeSet* getDocumentAttributesCB(AtkDocument* aDocument);
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static const gchar* getDocumentAttributeValueCB(AtkDocument* aDocument,
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const gchar* aAttrName);
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void documentInterfaceInitCB(AtkDocumentIface* aIface) {
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NS_ASSERTION(aIface, "Invalid Interface");
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if (MOZ_UNLIKELY(!aIface)) return;
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/*
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* We don't support get_document or set_attribute right now.
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* get_document_type is deprecated, we return DocType in
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* get_document_attribute_value and get_document_attributes instead.
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*/
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aIface->get_document_attributes = getDocumentAttributesCB;
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aIface->get_document_attribute_value = getDocumentAttributeValueCB;
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aIface->get_document_locale = getDocumentLocaleCB;
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}
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const gchar* getDocumentLocaleCB(AtkDocument* aDocument) {
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nsAutoString locale;
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AccessibleWrap* accWrap = GetAccessibleWrap(ATK_OBJECT(aDocument));
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if (accWrap) {
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accWrap->Language(locale);
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} else if (RemoteAccessible* proxy = GetProxy(ATK_OBJECT(aDocument))) {
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proxy->Language(locale);
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}
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return locale.IsEmpty() ? nullptr : AccessibleWrap::ReturnString(locale);
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}
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static inline GSList* prependToList(GSList* aList, const char* const aName,
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const nsAutoString& aValue) {
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if (aValue.IsEmpty()) {
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return aList;
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}
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// libspi will free these
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AtkAttribute* atkAttr = (AtkAttribute*)g_malloc(sizeof(AtkAttribute));
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atkAttr->name = g_strdup(aName);
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atkAttr->value = g_strdup(NS_ConvertUTF16toUTF8(aValue).get());
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return g_slist_prepend(aList, atkAttr);
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}
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AtkAttributeSet* getDocumentAttributesCB(AtkDocument* aDocument) {
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nsAutoString url;
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nsAutoString w3cDocType;
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nsAutoString mimeType;
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AccessibleWrap* accWrap = GetAccessibleWrap(ATK_OBJECT(aDocument));
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if (accWrap) {
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if (!accWrap->IsDoc()) {
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return nullptr;
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}
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DocAccessible* document = accWrap->AsDoc();
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document->URL(url);
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document->DocType(w3cDocType);
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document->MimeType(mimeType);
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} else if (RemoteAccessible* proxy = GetProxy(ATK_OBJECT(aDocument))) {
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proxy->URLDocTypeMimeType(url, w3cDocType, mimeType);
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} else {
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return nullptr;
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}
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// according to atkobject.h, AtkAttributeSet is a GSList
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GSList* attributes = nullptr;
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attributes = prependToList(attributes, kDocUrlName, url);
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attributes = prependToList(attributes, kDocTypeName, w3cDocType);
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attributes = prependToList(attributes, kMimeTypeName, mimeType);
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return attributes;
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}
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const gchar* getDocumentAttributeValueCB(AtkDocument* aDocument,
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const gchar* aAttrName) {
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RemoteAccessible* proxy = nullptr;
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DocAccessible* document = nullptr;
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AccessibleWrap* accWrap = GetAccessibleWrap(ATK_OBJECT(aDocument));
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if (accWrap) {
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if (!accWrap->IsDoc()) {
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return nullptr;
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}
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document = accWrap->AsDoc();
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} else {
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proxy = GetProxy(ATK_OBJECT(aDocument));
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if (!proxy) {
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return nullptr;
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}
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MOZ_ASSERT(proxy->IsDoc());
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}
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nsAutoString attrValue;
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if (!strcasecmp(aAttrName, kDocTypeName)) {
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if (document) {
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document->DocType(attrValue);
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} else {
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proxy->DocType(attrValue);
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}
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} else if (!strcasecmp(aAttrName, kDocUrlName)) {
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if (document) {
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document->URL(attrValue);
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} else {
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proxy->AsDoc()->URL(attrValue);
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}
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} else if (!strcasecmp(aAttrName, kMimeTypeName)) {
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if (document) {
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document->MimeType(attrValue);
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} else {
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proxy->MimeType(attrValue);
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}
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} else {
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return nullptr;
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}
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return attrValue.IsEmpty() ? nullptr
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: AccessibleWrap::ReturnString(attrValue);
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}
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}
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