gecko-dev/accessible/atk/AtkSocketAccessible.cpp

156 строки
4.7 KiB
C++

/* -*- 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 <atk/atk.h>
#include "AtkSocketAccessible.h"
#include "InterfaceInitFuncs.h"
#include "nsMai.h"
#include "mozilla/Likely.h"
using namespace mozilla::a11y;
AtkSocketEmbedType AtkSocketAccessible::g_atk_socket_embed = nullptr;
GType AtkSocketAccessible::g_atk_socket_type = G_TYPE_INVALID;
const char* AtkSocketAccessible::sATKSocketEmbedSymbol = "atk_socket_embed";
const char* AtkSocketAccessible::sATKSocketGetTypeSymbol = "atk_socket_get_type";
bool AtkSocketAccessible::gCanEmbed = FALSE;
extern "C" void mai_atk_component_iface_init(AtkComponentIface* aIface);
extern "C" GType mai_atk_socket_get_type(void);
/* MaiAtkSocket */
#define MAI_TYPE_ATK_SOCKET (mai_atk_socket_get_type ())
#define MAI_ATK_SOCKET(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj),\
MAI_TYPE_ATK_SOCKET, MaiAtkSocket))
#define MAI_IS_ATK_SOCKET(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj),\
MAI_TYPE_ATK_SOCKET))
#define MAI_ATK_SOCKET_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass),\
MAI_TYPE_ATK_SOCKET,\
MaiAtkSocketClass))
#define MAI_IS_ATK_SOCKET_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass),\
MAI_TYPE_ATK_SOCKET))
#define MAI_ATK_SOCKET_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj),\
MAI_TYPE_ATK_SOCKET,\
MaiAtkSocketClass))
typedef struct _MaiAtkSocket
{
AtkSocket parent;
AccessibleWrap* accWrap;
} MaiAtkSocket;
typedef struct _MaiAtkSocketClass
{
AtkSocketClass parent_class;
} MaiAtkSocketClass;
G_DEFINE_TYPE_EXTENDED(MaiAtkSocket, mai_atk_socket,
AtkSocketAccessible::g_atk_socket_type, 0,
G_IMPLEMENT_INTERFACE(ATK_TYPE_COMPONENT,
mai_atk_component_iface_init))
void
mai_atk_socket_class_init(MaiAtkSocketClass* aAcc)
{
}
void
mai_atk_socket_init(MaiAtkSocket* aAcc)
{
}
static AtkObject*
mai_atk_socket_new(AccessibleWrap* aAccWrap)
{
NS_ENSURE_TRUE(aAccWrap, nullptr);
MaiAtkSocket* acc = nullptr;
acc = static_cast<MaiAtkSocket*>(g_object_new(MAI_TYPE_ATK_SOCKET, nullptr));
NS_ENSURE_TRUE(acc, nullptr);
acc->accWrap = aAccWrap;
return ATK_OBJECT(acc);
}
extern "C" {
static AtkObject*
RefAccessibleAtPoint(AtkComponent* aComponent, gint aX, gint aY,
AtkCoordType aCoordType)
{
NS_ENSURE_TRUE(MAI_IS_ATK_SOCKET(aComponent), nullptr);
return refAccessibleAtPointHelper(MAI_ATK_SOCKET(aComponent)->accWrap,
aX, aY, aCoordType);
}
static void
GetExtents(AtkComponent* aComponent, gint* aX, gint* aY, gint* aWidth,
gint* aHeight, AtkCoordType aCoordType)
{
*aX = *aY = *aWidth = *aHeight = 0;
if (!MAI_IS_ATK_SOCKET(aComponent))
return;
getExtentsHelper(MAI_ATK_SOCKET(aComponent)->accWrap,
aX, aY, aWidth, aHeight, aCoordType);
}
}
void
mai_atk_component_iface_init(AtkComponentIface* aIface)
{
NS_ASSERTION(aIface, "Invalid Interface");
if (MOZ_UNLIKELY(!aIface))
return;
aIface->ref_accessible_at_point = RefAccessibleAtPoint;
aIface->get_extents = GetExtents;
}
AtkSocketAccessible::AtkSocketAccessible(nsIContent* aContent,
DocAccessible* aDoc,
const nsCString& aPlugId) :
AccessibleWrap(aContent, aDoc)
{
mAtkObject = mai_atk_socket_new(this);
if (!mAtkObject)
return;
// Embeds the children of an AtkPlug, specified by plugId, as the children of
// this socket.
// Using G_TYPE macros instead of ATK_SOCKET macros to avoid undefined
// symbols.
if (gCanEmbed && G_TYPE_CHECK_INSTANCE_TYPE(mAtkObject, g_atk_socket_type) &&
!aPlugId.IsVoid()) {
AtkSocket* accSocket =
G_TYPE_CHECK_INSTANCE_CAST(mAtkObject, g_atk_socket_type, AtkSocket);
g_atk_socket_embed(accSocket, (gchar*)aPlugId.get());
}
}
void
AtkSocketAccessible::GetNativeInterface(void** aOutAccessible)
{
*aOutAccessible = mAtkObject;
}
void
AtkSocketAccessible::Shutdown()
{
if (mAtkObject) {
if (MAI_IS_ATK_SOCKET(mAtkObject))
MAI_ATK_SOCKET(mAtkObject)->accWrap = nullptr;
g_object_unref(mAtkObject);
mAtkObject = nullptr;
}
AccessibleWrap::Shutdown();
}