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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/. */
#include "nsIURI.h"
#include "nsMaiHyperlink.h"
#include "mozilla/a11y/RemoteAccessible.h"
using namespace mozilla::a11y;
/* MaiAtkHyperlink */
#define MAI_TYPE_ATK_HYPERLINK (mai_atk_hyperlink_get_type())
#define MAI_ATK_HYPERLINK(obj) \
(G_TYPE_CHECK_INSTANCE_CAST((obj), MAI_TYPE_ATK_HYPERLINK, MaiAtkHyperlink))
#define MAI_ATK_HYPERLINK_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST((klass), MAI_TYPE_ATK_HYPERLINK, \
MaiAtkHyperlinkClass))
#define MAI_IS_ATK_HYPERLINK(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE((obj), MAI_TYPE_ATK_HYPERLINK))
#define MAI_IS_ATK_HYPERLINK_CLASS(klass) \
(G_TYPE_CHECK_CLASS_TYPE((klass), MAI_TYPE_ATK_HYPERLINK))
#define MAI_ATK_HYPERLINK_GET_CLASS(obj) \
(G_TYPE_INSTANCE_GET_CLASS((obj), MAI_TYPE_ATK_HYPERLINK, \
MaiAtkHyperlinkClass))
/**
* This MaiAtkHyperlink is a thin wrapper, in the MAI namespace,
* for AtkHyperlink
*/
struct MaiAtkHyperlink {
AtkHyperlink parent;
/*
* The MaiHyperlink whose properties and features are exported via this
* hyperlink instance.
*/
MaiHyperlink* maiHyperlink;
};
struct MaiAtkHyperlinkClass {
AtkHyperlinkClass parent_class;
};
GType mai_atk_hyperlink_get_type(void);
G_BEGIN_DECLS
/* callbacks for AtkHyperlink */
static void classInitCB(AtkHyperlinkClass* aClass);
static void finalizeCB(GObject* aObj);
/* callbacks for AtkHyperlink virtual functions */
static gchar* getUriCB(AtkHyperlink* aLink, gint aLinkIndex);
static AtkObject* getObjectCB(AtkHyperlink* aLink, gint aLinkIndex);
static gint getEndIndexCB(AtkHyperlink* aLink);
static gint getStartIndexCB(AtkHyperlink* aLink);
static gboolean isValidCB(AtkHyperlink* aLink);
static gint getAnchorCountCB(AtkHyperlink* aLink);
G_END_DECLS
static gpointer parent_class = nullptr;
static MaiHyperlink* GetMaiHyperlink(AtkHyperlink* aHyperlink) {
NS_ENSURE_TRUE(MAI_IS_ATK_HYPERLINK(aHyperlink), nullptr);
MaiHyperlink* maiHyperlink = MAI_ATK_HYPERLINK(aHyperlink)->maiHyperlink;
NS_ENSURE_TRUE(maiHyperlink != nullptr, nullptr);
NS_ENSURE_TRUE(maiHyperlink->GetAtkHyperlink() == aHyperlink, nullptr);
return maiHyperlink;
}
GType mai_atk_hyperlink_get_type(void) {
static GType type = 0;
if (!type) {
static const GTypeInfo tinfo = {
sizeof(MaiAtkHyperlinkClass),
(GBaseInitFunc) nullptr,
(GBaseFinalizeFunc) nullptr,
(GClassInitFunc)classInitCB,
(GClassFinalizeFunc) nullptr,
nullptr, /* class data */
sizeof(MaiAtkHyperlink), /* instance size */
0, /* nb preallocs */
(GInstanceInitFunc) nullptr,
nullptr /* value table */
};
type = g_type_register_static(ATK_TYPE_HYPERLINK, "MaiAtkHyperlink", &tinfo,
GTypeFlags(0));
}
return type;
}
MaiHyperlink::MaiHyperlink(Accessible* aHyperLink)
: mHyperlink(aHyperLink), mMaiAtkHyperlink(nullptr) {
mMaiAtkHyperlink = reinterpret_cast<AtkHyperlink*>(
g_object_new(mai_atk_hyperlink_get_type(), nullptr));
NS_ASSERTION(mMaiAtkHyperlink, "OUT OF MEMORY");
if (!mMaiAtkHyperlink) return;
MAI_ATK_HYPERLINK(mMaiAtkHyperlink)->maiHyperlink = this;
}
MaiHyperlink::~MaiHyperlink() {
if (mMaiAtkHyperlink) {
MAI_ATK_HYPERLINK(mMaiAtkHyperlink)->maiHyperlink = nullptr;
g_object_unref(mMaiAtkHyperlink);
}
}
/* static functions for ATK callbacks */
void classInitCB(AtkHyperlinkClass* aClass) {
GObjectClass* gobject_class = G_OBJECT_CLASS(aClass);
parent_class = g_type_class_peek_parent(aClass);
aClass->get_uri = getUriCB;
aClass->get_object = getObjectCB;
aClass->get_end_index = getEndIndexCB;
aClass->get_start_index = getStartIndexCB;
aClass->is_valid = isValidCB;
aClass->get_n_anchors = getAnchorCountCB;
gobject_class->finalize = finalizeCB;
}
void finalizeCB(GObject* aObj) {
NS_ASSERTION(MAI_IS_ATK_HYPERLINK(aObj), "Invalid MaiAtkHyperlink");
if (!MAI_IS_ATK_HYPERLINK(aObj)) return;
MaiAtkHyperlink* maiAtkHyperlink = MAI_ATK_HYPERLINK(aObj);
maiAtkHyperlink->maiHyperlink = nullptr;
/* call parent finalize function */
if (G_OBJECT_CLASS(parent_class)->finalize) {
G_OBJECT_CLASS(parent_class)->finalize(aObj);
}
}
gchar* getUriCB(AtkHyperlink* aLink, gint aLinkIndex) {
MaiHyperlink* maiLink = GetMaiHyperlink(aLink);
if (!maiLink) return nullptr;
nsAutoCString cautoStr;
if (LocalAccessible* hyperlink = maiLink->GetAccHyperlink()) {
nsCOMPtr<nsIURI> uri = hyperlink->AnchorURIAt(aLinkIndex);
if (!uri) return nullptr;
nsresult rv = uri->GetSpec(cautoStr);
NS_ENSURE_SUCCESS(rv, nullptr);
return g_strdup(cautoStr.get());
}
bool valid;
maiLink->Proxy()->AnchorURIAt(aLinkIndex, cautoStr, &valid);
if (!valid) return nullptr;
return g_strdup(cautoStr.get());
}
AtkObject* getObjectCB(AtkHyperlink* aLink, gint aLinkIndex) {
MaiHyperlink* maiLink = GetMaiHyperlink(aLink);
if (!maiLink) {
return nullptr;
}
if (LocalAccessible* hyperlink = maiLink->GetAccHyperlink()) {
LocalAccessible* anchor = hyperlink->AnchorAt(aLinkIndex);
NS_ENSURE_TRUE(anchor, nullptr);
return AccessibleWrap::GetAtkObject(anchor);
}
RemoteAccessible* anchor = maiLink->Proxy()->AnchorAt(aLinkIndex);
return anchor ? GetWrapperFor(anchor) : nullptr;
}
gint getEndIndexCB(AtkHyperlink* aLink) {
MaiHyperlink* maiLink = GetMaiHyperlink(aLink);
if (!maiLink) return false;
return static_cast<gint>(maiLink->Acc()->EndOffset());
}
gint getStartIndexCB(AtkHyperlink* aLink) {
MaiHyperlink* maiLink = GetMaiHyperlink(aLink);
if (!maiLink) return -1;
return static_cast<gint>(maiLink->Acc()->StartOffset());
}
gboolean isValidCB(AtkHyperlink* aLink) {
MaiHyperlink* maiLink = GetMaiHyperlink(aLink);
if (!maiLink) return false;
if (LocalAccessible* hyperlink = maiLink->GetAccHyperlink()) {
return static_cast<gboolean>(hyperlink->IsLinkValid());
}
return static_cast<gboolean>(maiLink->Proxy()->IsLinkValid());
}
gint getAnchorCountCB(AtkHyperlink* aLink) {
MaiHyperlink* maiLink = GetMaiHyperlink(aLink);
if (!maiLink) return -1;
if (LocalAccessible* hyperlink = maiLink->GetAccHyperlink()) {
return static_cast<gint>(hyperlink->AnchorCount());
}
bool valid = false;
uint32_t anchorCount = maiLink->Proxy()->AnchorCount(&valid);
return valid ? static_cast<gint>(anchorCount) : -1;
}
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