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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 "nsIURI.h"
#include "nsMaiHyperlink.h"
#include "mozilla/a11y/ProxyAccessible.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(AccessibleOrProxy 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 (Accessible* 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 (Accessible* hyperlink = maiLink->GetAccHyperlink()) {
Accessible* anchor = hyperlink->AnchorAt(aLinkIndex);
NS_ENSURE_TRUE(anchor, nullptr);
return AccessibleWrap::GetAtkObject(anchor);
}
ProxyAccessible* anchor = maiLink->Proxy()->AnchorAt(aLinkIndex);
return anchor ? GetWrapperFor(anchor) : nullptr;
}
gint
getEndIndexCB(AtkHyperlink *aLink)
{
MaiHyperlink* maiLink = GetMaiHyperlink(aLink);
if (!maiLink)
return false;
if (Accessible* hyperlink = maiLink->GetAccHyperlink())
return static_cast<gint>(hyperlink->EndOffset());
bool valid = false;
uint32_t endIdx = maiLink->Proxy()->EndOffset(&valid);
return valid ? static_cast<gint>(endIdx) : -1;
}
gint
getStartIndexCB(AtkHyperlink *aLink)
{
MaiHyperlink* maiLink = GetMaiHyperlink(aLink);
if (!maiLink)
return -1;
if (Accessible* hyperlink = maiLink->GetAccHyperlink())
return static_cast<gint>(hyperlink->StartOffset());
bool valid = false;
uint32_t startIdx = maiLink->Proxy()->StartOffset(&valid);
return valid ? static_cast<gint>(startIdx) : -1;
}
gboolean
isValidCB(AtkHyperlink *aLink)
{
MaiHyperlink* maiLink = GetMaiHyperlink(aLink);
if (!maiLink)
return false;
if (Accessible* 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 (Accessible* 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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