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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* 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 "InterfaceInitFuncs.h"
#include "Accessible-inl.h"
#include "AccessibleWrap.h"
#include "DocAccessible.h"
#include "nsMai.h"
#include "ProxyAccessible.h"
#include "mozilla/Likely.h"
using namespace mozilla::a11y;
static const char* const kDocTypeName = "W3C-doctype";
static const char* const kDocUrlName = "DocURL";
static const char* const kMimeTypeName = "MimeType";
// below functions are vfuncs on an ATK interface so they need to be C call
extern "C" {
static const gchar* getDocumentLocaleCB(AtkDocument* aDocument);
static AtkAttributeSet* getDocumentAttributesCB(AtkDocument* aDocument);
static const gchar* getDocumentAttributeValueCB(AtkDocument* aDocument,
const gchar* aAttrName);
void
documentInterfaceInitCB(AtkDocumentIface *aIface)
{
NS_ASSERTION(aIface, "Invalid Interface");
if(MOZ_UNLIKELY(!aIface))
return;
/*
* We don't support get_document or set_attribute right now.
* get_document_type is deprecated, we return DocType in
* get_document_attribute_value and get_document_attributes instead.
*/
aIface->get_document_attributes = getDocumentAttributesCB;
aIface->get_document_attribute_value = getDocumentAttributeValueCB;
aIface->get_document_locale = getDocumentLocaleCB;
}
const gchar *
getDocumentLocaleCB(AtkDocument *aDocument)
{
nsAutoString locale;
AccessibleWrap* accWrap = GetAccessibleWrap(ATK_OBJECT(aDocument));
if (accWrap) {
accWrap->Language(locale);
} else if (ProxyAccessible* proxy = GetProxy(ATK_OBJECT(aDocument))) {
proxy->Language(locale);
}
return locale.IsEmpty() ? nullptr : AccessibleWrap::ReturnString(locale);
}
static inline GSList *
prependToList(GSList *aList, const char *const aName, const nsAutoString &aValue)
{
if (aValue.IsEmpty()) {
return aList;
}
// libspi will free these
AtkAttribute *atkAttr = (AtkAttribute *)g_malloc(sizeof(AtkAttribute));
atkAttr->name = g_strdup(aName);
atkAttr->value = g_strdup(NS_ConvertUTF16toUTF8(aValue).get());
return g_slist_prepend(aList, atkAttr);
}
AtkAttributeSet *
getDocumentAttributesCB(AtkDocument *aDocument)
{
nsAutoString url;
nsAutoString w3cDocType;
nsAutoString mimeType;
AccessibleWrap* accWrap = GetAccessibleWrap(ATK_OBJECT(aDocument));
if (accWrap) {
if (!accWrap->IsDoc()) {
return nullptr;
}
DocAccessible* document = accWrap->AsDoc();
document->URL(url);
document->DocType(w3cDocType);
document->MimeType(mimeType);
} else if (ProxyAccessible* proxy = GetProxy(ATK_OBJECT(aDocument))) {
proxy->URLDocTypeMimeType(url, w3cDocType, mimeType);
} else {
return nullptr;
}
// according to atkobject.h, AtkAttributeSet is a GSList
GSList* attributes = nullptr;
attributes = prependToList(attributes, kDocUrlName, url);
attributes = prependToList(attributes, kDocTypeName, w3cDocType);
attributes = prependToList(attributes, kMimeTypeName, mimeType);
return attributes;
}
const gchar *
getDocumentAttributeValueCB(AtkDocument *aDocument,
const gchar *aAttrName)
{
ProxyAccessible* proxy = nullptr;
DocAccessible* document = nullptr;
AccessibleWrap* accWrap = GetAccessibleWrap(ATK_OBJECT(aDocument));
if (accWrap) {
if (!accWrap->IsDoc()) {
return nullptr;
}
document = accWrap->AsDoc();
} else {
proxy = GetProxy(ATK_OBJECT(aDocument));
if (!proxy) {
return nullptr;
}
}
nsAutoString attrValue;
if (!strcasecmp(aAttrName, kDocTypeName)) {
if (document) {
document->DocType(attrValue);
} else {
proxy->DocType(attrValue);
}
} else if (!strcasecmp(aAttrName, kDocUrlName)) {
if (document) {
document->URL(attrValue);
} else {
proxy->URL(attrValue);
}
} else if (!strcasecmp(aAttrName, kMimeTypeName)) {
if (document) {
document->MimeType(attrValue);
} else {
proxy->MimeType(attrValue);
}
} else {
return nullptr;
}
return attrValue.IsEmpty() ? nullptr : AccessibleWrap::ReturnString(attrValue);
}
}
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