summaryrefslogtreecommitdiffstats
path: root/accessible/atk/AccessibleWrap.cpp
diff options
context:
space:
mode:
authorMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
committerMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
commit5f8de423f190bbb79a62f804151bc24824fa32d8 (patch)
tree10027f336435511475e392454359edea8e25895d /accessible/atk/AccessibleWrap.cpp
parent49ee0794b5d912db1f95dce6eb52d781dc210db5 (diff)
downloadUXP-5f8de423f190bbb79a62f804151bc24824fa32d8.tar
UXP-5f8de423f190bbb79a62f804151bc24824fa32d8.tar.gz
UXP-5f8de423f190bbb79a62f804151bc24824fa32d8.tar.lz
UXP-5f8de423f190bbb79a62f804151bc24824fa32d8.tar.xz
UXP-5f8de423f190bbb79a62f804151bc24824fa32d8.zip
Add m-esr52 at 52.6.0
Diffstat (limited to 'accessible/atk/AccessibleWrap.cpp')
-rw-r--r--accessible/atk/AccessibleWrap.cpp1759
1 files changed, 1759 insertions, 0 deletions
diff --git a/accessible/atk/AccessibleWrap.cpp b/accessible/atk/AccessibleWrap.cpp
new file mode 100644
index 000000000..cd0f2999a
--- /dev/null
+++ b/accessible/atk/AccessibleWrap.cpp
@@ -0,0 +1,1759 @@
+/* -*- 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 "AccessibleWrap.h"
+
+#include "Accessible-inl.h"
+#include "ApplicationAccessibleWrap.h"
+#include "InterfaceInitFuncs.h"
+#include "nsAccUtils.h"
+#include "mozilla/a11y/PDocAccessible.h"
+#include "OuterDocAccessible.h"
+#include "ProxyAccessible.h"
+#include "RootAccessible.h"
+#include "TableAccessible.h"
+#include "TableCellAccessible.h"
+#include "nsMai.h"
+#include "nsMaiHyperlink.h"
+#include "nsString.h"
+#include "nsStateMap.h"
+#include "mozilla/a11y/Platform.h"
+#include "Relation.h"
+#include "RootAccessible.h"
+#include "States.h"
+#include "nsISimpleEnumerator.h"
+
+#include "mozilla/ArrayUtils.h"
+#include "mozilla/Sprintf.h"
+#include "nsXPCOMStrings.h"
+#include "nsComponentManagerUtils.h"
+#include "nsIPersistentProperties2.h"
+
+using namespace mozilla;
+using namespace mozilla::a11y;
+
+MaiAtkObject::EAvailableAtkSignals MaiAtkObject::gAvailableAtkSignals =
+ eUnknown;
+
+//defined in ApplicationAccessibleWrap.cpp
+extern "C" GType g_atk_hyperlink_impl_type;
+
+/* MaiAtkObject */
+
+enum {
+ ACTIVATE,
+ CREATE,
+ DEACTIVATE,
+ DESTROY,
+ MAXIMIZE,
+ MINIMIZE,
+ RESIZE,
+ RESTORE,
+ LAST_SIGNAL
+};
+
+enum MaiInterfaceType {
+ MAI_INTERFACE_COMPONENT, /* 0 */
+ MAI_INTERFACE_ACTION,
+ MAI_INTERFACE_VALUE,
+ MAI_INTERFACE_EDITABLE_TEXT,
+ MAI_INTERFACE_HYPERTEXT,
+ MAI_INTERFACE_HYPERLINK_IMPL,
+ MAI_INTERFACE_SELECTION,
+ MAI_INTERFACE_TABLE,
+ MAI_INTERFACE_TEXT,
+ MAI_INTERFACE_DOCUMENT,
+ MAI_INTERFACE_IMAGE, /* 10 */
+ MAI_INTERFACE_TABLE_CELL
+};
+
+static GType GetAtkTypeForMai(MaiInterfaceType type)
+{
+ switch (type) {
+ case MAI_INTERFACE_COMPONENT:
+ return ATK_TYPE_COMPONENT;
+ case MAI_INTERFACE_ACTION:
+ return ATK_TYPE_ACTION;
+ case MAI_INTERFACE_VALUE:
+ return ATK_TYPE_VALUE;
+ case MAI_INTERFACE_EDITABLE_TEXT:
+ return ATK_TYPE_EDITABLE_TEXT;
+ case MAI_INTERFACE_HYPERTEXT:
+ return ATK_TYPE_HYPERTEXT;
+ case MAI_INTERFACE_HYPERLINK_IMPL:
+ return g_atk_hyperlink_impl_type;
+ case MAI_INTERFACE_SELECTION:
+ return ATK_TYPE_SELECTION;
+ case MAI_INTERFACE_TABLE:
+ return ATK_TYPE_TABLE;
+ case MAI_INTERFACE_TEXT:
+ return ATK_TYPE_TEXT;
+ case MAI_INTERFACE_DOCUMENT:
+ return ATK_TYPE_DOCUMENT;
+ case MAI_INTERFACE_IMAGE:
+ return ATK_TYPE_IMAGE;
+ case MAI_INTERFACE_TABLE_CELL:
+ MOZ_ASSERT(false);
+ }
+ return G_TYPE_INVALID;
+}
+
+#define NON_USER_EVENT ":system"
+
+// The atk interfaces we can expose without checking what version of ATK we are
+// dealing with. At the moment AtkTableCell is the only interface we can't
+// always expose.
+static const GInterfaceInfo atk_if_infos[] = {
+ {(GInterfaceInitFunc)componentInterfaceInitCB,
+ (GInterfaceFinalizeFunc) nullptr, nullptr},
+ {(GInterfaceInitFunc)actionInterfaceInitCB,
+ (GInterfaceFinalizeFunc) nullptr, nullptr},
+ {(GInterfaceInitFunc)valueInterfaceInitCB,
+ (GInterfaceFinalizeFunc) nullptr, nullptr},
+ {(GInterfaceInitFunc)editableTextInterfaceInitCB,
+ (GInterfaceFinalizeFunc) nullptr, nullptr},
+ {(GInterfaceInitFunc)hypertextInterfaceInitCB,
+ (GInterfaceFinalizeFunc) nullptr, nullptr},
+ {(GInterfaceInitFunc)hyperlinkImplInterfaceInitCB,
+ (GInterfaceFinalizeFunc) nullptr, nullptr},
+ {(GInterfaceInitFunc)selectionInterfaceInitCB,
+ (GInterfaceFinalizeFunc) nullptr, nullptr},
+ {(GInterfaceInitFunc)tableInterfaceInitCB,
+ (GInterfaceFinalizeFunc) nullptr, nullptr},
+ {(GInterfaceInitFunc)textInterfaceInitCB,
+ (GInterfaceFinalizeFunc) nullptr, nullptr},
+ {(GInterfaceInitFunc)documentInterfaceInitCB,
+ (GInterfaceFinalizeFunc) nullptr, nullptr},
+ {(GInterfaceInitFunc)imageInterfaceInitCB,
+ (GInterfaceFinalizeFunc) nullptr, nullptr}
+};
+
+static GQuark quark_mai_hyperlink = 0;
+
+AtkHyperlink*
+MaiAtkObject::GetAtkHyperlink()
+{
+ NS_ASSERTION(quark_mai_hyperlink, "quark_mai_hyperlink not initialized");
+ MaiHyperlink* maiHyperlink =
+ (MaiHyperlink*)g_object_get_qdata(G_OBJECT(this), quark_mai_hyperlink);
+ if (!maiHyperlink) {
+ maiHyperlink = new MaiHyperlink(accWrap);
+ g_object_set_qdata(G_OBJECT(this), quark_mai_hyperlink, maiHyperlink);
+ }
+
+ return maiHyperlink->GetAtkHyperlink();
+}
+
+void
+MaiAtkObject::Shutdown()
+{
+ accWrap.SetBits(0);
+ MaiHyperlink* maiHyperlink =
+ (MaiHyperlink*)g_object_get_qdata(G_OBJECT(this), quark_mai_hyperlink);
+ if (maiHyperlink) {
+ delete maiHyperlink;
+ g_object_set_qdata(G_OBJECT(this), quark_mai_hyperlink, nullptr);
+ }
+}
+
+struct MaiAtkObjectClass
+{
+ AtkObjectClass parent_class;
+};
+
+static guint mai_atk_object_signals [LAST_SIGNAL] = { 0, };
+
+static void MaybeFireNameChange(AtkObject* aAtkObj, const nsString& aNewName);
+
+G_BEGIN_DECLS
+/* callbacks for MaiAtkObject */
+static void classInitCB(AtkObjectClass *aClass);
+static void initializeCB(AtkObject *aAtkObj, gpointer aData);
+static void finalizeCB(GObject *aObj);
+
+/* callbacks for AtkObject virtual functions */
+static const gchar* getNameCB (AtkObject *aAtkObj);
+/* getDescriptionCB is also used by image interface */
+ const gchar* getDescriptionCB (AtkObject *aAtkObj);
+static AtkRole getRoleCB(AtkObject *aAtkObj);
+static AtkAttributeSet* getAttributesCB(AtkObject *aAtkObj);
+static const gchar* GetLocaleCB(AtkObject*);
+static AtkObject* getParentCB(AtkObject *aAtkObj);
+static gint getChildCountCB(AtkObject *aAtkObj);
+static AtkObject* refChildCB(AtkObject *aAtkObj, gint aChildIndex);
+static gint getIndexInParentCB(AtkObject *aAtkObj);
+static AtkStateSet* refStateSetCB(AtkObject *aAtkObj);
+static AtkRelationSet* refRelationSetCB(AtkObject *aAtkObj);
+
+/* the missing atkobject virtual functions */
+/*
+ static AtkLayer getLayerCB(AtkObject *aAtkObj);
+ static gint getMdiZorderCB(AtkObject *aAtkObj);
+ static void SetNameCB(AtkObject *aAtkObj,
+ const gchar *name);
+ static void SetDescriptionCB(AtkObject *aAtkObj,
+ const gchar *description);
+ static void SetParentCB(AtkObject *aAtkObj,
+ AtkObject *parent);
+ static void SetRoleCB(AtkObject *aAtkObj,
+ AtkRole role);
+ static guint ConnectPropertyChangeHandlerCB(
+ AtkObject *aObj,
+ AtkPropertyChangeHandler *handler);
+ static void RemovePropertyChangeHandlerCB(
+ AtkObject *aAtkObj,
+ guint handler_id);
+ static void InitializeCB(AtkObject *aAtkObj,
+ gpointer data);
+ static void ChildrenChangedCB(AtkObject *aAtkObj,
+ guint change_index,
+ gpointer changed_child);
+ static void FocusEventCB(AtkObject *aAtkObj,
+ gboolean focus_in);
+ static void PropertyChangeCB(AtkObject *aAtkObj,
+ AtkPropertyValues *values);
+ static void StateChangeCB(AtkObject *aAtkObj,
+ const gchar *name,
+ gboolean state_set);
+ static void VisibleDataChangedCB(AtkObject *aAtkObj);
+*/
+G_END_DECLS
+
+static GType GetMaiAtkType(uint16_t interfacesBits);
+static const char * GetUniqueMaiAtkTypeName(uint16_t interfacesBits);
+
+static gpointer parent_class = nullptr;
+
+GType
+mai_atk_object_get_type(void)
+{
+ static GType type = 0;
+
+ if (!type) {
+ static const GTypeInfo tinfo = {
+ sizeof(MaiAtkObjectClass),
+ (GBaseInitFunc)nullptr,
+ (GBaseFinalizeFunc)nullptr,
+ (GClassInitFunc)classInitCB,
+ (GClassFinalizeFunc)nullptr,
+ nullptr, /* class data */
+ sizeof(MaiAtkObject), /* instance size */
+ 0, /* nb preallocs */
+ (GInstanceInitFunc)nullptr,
+ nullptr /* value table */
+ };
+
+ type = g_type_register_static(ATK_TYPE_OBJECT,
+ "MaiAtkObject", &tinfo, GTypeFlags(0));
+ quark_mai_hyperlink = g_quark_from_static_string("MaiHyperlink");
+ }
+ return type;
+}
+
+AccessibleWrap::
+ AccessibleWrap(nsIContent* aContent, DocAccessible* aDoc) :
+ Accessible(aContent, aDoc), mAtkObject(nullptr)
+{
+}
+
+AccessibleWrap::~AccessibleWrap()
+{
+ NS_ASSERTION(!mAtkObject, "ShutdownAtkObject() is not called");
+}
+
+void
+AccessibleWrap::ShutdownAtkObject()
+{
+ if (!mAtkObject)
+ return;
+
+ NS_ASSERTION(IS_MAI_OBJECT(mAtkObject), "wrong type of atk object");
+ if (IS_MAI_OBJECT(mAtkObject))
+ MAI_ATK_OBJECT(mAtkObject)->Shutdown();
+
+ g_object_unref(mAtkObject);
+ mAtkObject = nullptr;
+}
+
+void
+AccessibleWrap::Shutdown()
+{
+ ShutdownAtkObject();
+ Accessible::Shutdown();
+}
+
+void
+AccessibleWrap::GetNativeInterface(void** aOutAccessible)
+{
+ *aOutAccessible = nullptr;
+
+ if (!mAtkObject) {
+ if (IsDefunct() || IsText()) {
+ // We don't create ATK objects for node which has been shutdown or
+ // plain text leaves
+ return;
+ }
+
+ GType type = GetMaiAtkType(CreateMaiInterfaces());
+ if (!type)
+ return;
+
+ mAtkObject = reinterpret_cast<AtkObject*>(g_object_new(type, nullptr));
+ if (!mAtkObject)
+ return;
+
+ atk_object_initialize(mAtkObject, this);
+ mAtkObject->role = ATK_ROLE_INVALID;
+ mAtkObject->layer = ATK_LAYER_INVALID;
+ }
+
+ *aOutAccessible = mAtkObject;
+}
+
+AtkObject *
+AccessibleWrap::GetAtkObject(void)
+{
+ void *atkObj = nullptr;
+ GetNativeInterface(&atkObj);
+ return static_cast<AtkObject *>(atkObj);
+}
+
+// Get AtkObject from Accessible interface
+/* static */
+AtkObject *
+AccessibleWrap::GetAtkObject(Accessible* acc)
+{
+ void *atkObjPtr = nullptr;
+ acc->GetNativeInterface(&atkObjPtr);
+ return atkObjPtr ? ATK_OBJECT(atkObjPtr) : nullptr;
+}
+
+/* private */
+uint16_t
+AccessibleWrap::CreateMaiInterfaces(void)
+{
+ uint16_t interfacesBits = 0;
+
+ // The Component interface is supported by all accessibles.
+ interfacesBits |= 1 << MAI_INTERFACE_COMPONENT;
+
+ // Add Action interface if the action count is more than zero.
+ if (ActionCount() > 0)
+ interfacesBits |= 1 << MAI_INTERFACE_ACTION;
+
+ // Text, Editabletext, and Hypertext interface.
+ HyperTextAccessible* hyperText = AsHyperText();
+ if (hyperText && hyperText->IsTextRole()) {
+ interfacesBits |= 1 << MAI_INTERFACE_TEXT;
+ interfacesBits |= 1 << MAI_INTERFACE_EDITABLE_TEXT;
+ if (!nsAccUtils::MustPrune(this))
+ interfacesBits |= 1 << MAI_INTERFACE_HYPERTEXT;
+ }
+
+ // Value interface.
+ if (HasNumericValue())
+ interfacesBits |= 1 << MAI_INTERFACE_VALUE;
+
+ // Document interface.
+ if (IsDoc())
+ interfacesBits |= 1 << MAI_INTERFACE_DOCUMENT;
+
+ if (IsImage())
+ interfacesBits |= 1 << MAI_INTERFACE_IMAGE;
+
+ // HyperLink interface.
+ if (IsLink())
+ interfacesBits |= 1 << MAI_INTERFACE_HYPERLINK_IMPL;
+
+ if (!nsAccUtils::MustPrune(this)) { // These interfaces require children
+ // Table interface.
+ if (AsTable())
+ interfacesBits |= 1 << MAI_INTERFACE_TABLE;
+
+ if (AsTableCell())
+ interfacesBits |= 1 << MAI_INTERFACE_TABLE_CELL;
+
+ // Selection interface.
+ if (IsSelect()) {
+ interfacesBits |= 1 << MAI_INTERFACE_SELECTION;
+ }
+ }
+
+ return interfacesBits;
+}
+
+static GType
+GetMaiAtkType(uint16_t interfacesBits)
+{
+ GType type;
+ static const GTypeInfo tinfo = {
+ sizeof(MaiAtkObjectClass),
+ (GBaseInitFunc) nullptr,
+ (GBaseFinalizeFunc) nullptr,
+ (GClassInitFunc) nullptr,
+ (GClassFinalizeFunc) nullptr,
+ nullptr, /* class data */
+ sizeof(MaiAtkObject), /* instance size */
+ 0, /* nb preallocs */
+ (GInstanceInitFunc) nullptr,
+ nullptr /* value table */
+ };
+
+ /*
+ * The members we use to register GTypes are GetAtkTypeForMai
+ * and atk_if_infos, which are constant values to each MaiInterface
+ * So we can reuse the registered GType when having
+ * the same MaiInterface types.
+ */
+ const char *atkTypeName = GetUniqueMaiAtkTypeName(interfacesBits);
+ type = g_type_from_name(atkTypeName);
+ if (type) {
+ return type;
+ }
+
+ /*
+ * gobject limits the number of types that can directly derive from any
+ * given object type to 4095.
+ */
+ static uint16_t typeRegCount = 0;
+ if (typeRegCount++ >= 4095) {
+ return G_TYPE_INVALID;
+ }
+ type = g_type_register_static(MAI_TYPE_ATK_OBJECT,
+ atkTypeName,
+ &tinfo, GTypeFlags(0));
+
+ for (uint32_t index = 0; index < ArrayLength(atk_if_infos); index++) {
+ if (interfacesBits & (1 << index)) {
+ g_type_add_interface_static(type,
+ GetAtkTypeForMai((MaiInterfaceType)index),
+ &atk_if_infos[index]);
+ }
+ }
+
+ // Special case AtkTableCell so we can check what version of Atk we are
+ // dealing with.
+ if (IsAtkVersionAtLeast(2, 12) && (interfacesBits & (1 << MAI_INTERFACE_TABLE_CELL))) {
+ const GInterfaceInfo cellInfo = {
+ (GInterfaceInitFunc)tableCellInterfaceInitCB,
+ (GInterfaceFinalizeFunc)nullptr, nullptr};
+ g_type_add_interface_static(type, gAtkTableCellGetTypeFunc(), &cellInfo);
+ }
+
+ return type;
+}
+
+static const char*
+GetUniqueMaiAtkTypeName(uint16_t interfacesBits)
+{
+#define MAI_ATK_TYPE_NAME_LEN (30) /* 10+sizeof(uint16_t)*8/4+1 < 30 */
+
+ static gchar namePrefix[] = "MaiAtkType"; /* size = 10 */
+ static gchar name[MAI_ATK_TYPE_NAME_LEN + 1];
+
+ SprintfLiteral(name, "%s%x", namePrefix, interfacesBits);
+ name[MAI_ATK_TYPE_NAME_LEN] = '\0';
+
+ return name;
+}
+
+bool
+AccessibleWrap::IsValidObject()
+{
+ // to ensure we are not shut down
+ return !IsDefunct();
+}
+
+/* static functions for ATK callbacks */
+void
+classInitCB(AtkObjectClass *aClass)
+{
+ GObjectClass *gobject_class = G_OBJECT_CLASS(aClass);
+
+ parent_class = g_type_class_peek_parent(aClass);
+
+ aClass->get_name = getNameCB;
+ aClass->get_description = getDescriptionCB;
+ aClass->get_parent = getParentCB;
+ aClass->get_n_children = getChildCountCB;
+ aClass->ref_child = refChildCB;
+ aClass->get_index_in_parent = getIndexInParentCB;
+ aClass->get_role = getRoleCB;
+ aClass->get_attributes = getAttributesCB;
+ aClass->get_object_locale = GetLocaleCB;
+ aClass->ref_state_set = refStateSetCB;
+ aClass->ref_relation_set = refRelationSetCB;
+
+ aClass->initialize = initializeCB;
+
+ gobject_class->finalize = finalizeCB;
+
+ mai_atk_object_signals [ACTIVATE] =
+ g_signal_new ("activate",
+ MAI_TYPE_ATK_OBJECT,
+ G_SIGNAL_RUN_LAST,
+ 0, /* default signal handler */
+ nullptr, nullptr,
+ g_cclosure_marshal_VOID__VOID,
+ G_TYPE_NONE, 0);
+ mai_atk_object_signals [CREATE] =
+ g_signal_new ("create",
+ MAI_TYPE_ATK_OBJECT,
+ G_SIGNAL_RUN_LAST,
+ 0, /* default signal handler */
+ nullptr, nullptr,
+ g_cclosure_marshal_VOID__VOID,
+ G_TYPE_NONE, 0);
+ mai_atk_object_signals [DEACTIVATE] =
+ g_signal_new ("deactivate",
+ MAI_TYPE_ATK_OBJECT,
+ G_SIGNAL_RUN_LAST,
+ 0, /* default signal handler */
+ nullptr, nullptr,
+ g_cclosure_marshal_VOID__VOID,
+ G_TYPE_NONE, 0);
+ mai_atk_object_signals [DESTROY] =
+ g_signal_new ("destroy",
+ MAI_TYPE_ATK_OBJECT,
+ G_SIGNAL_RUN_LAST,
+ 0, /* default signal handler */
+ nullptr, nullptr,
+ g_cclosure_marshal_VOID__VOID,
+ G_TYPE_NONE, 0);
+ mai_atk_object_signals [MAXIMIZE] =
+ g_signal_new ("maximize",
+ MAI_TYPE_ATK_OBJECT,
+ G_SIGNAL_RUN_LAST,
+ 0, /* default signal handler */
+ nullptr, nullptr,
+ g_cclosure_marshal_VOID__VOID,
+ G_TYPE_NONE, 0);
+ mai_atk_object_signals [MINIMIZE] =
+ g_signal_new ("minimize",
+ MAI_TYPE_ATK_OBJECT,
+ G_SIGNAL_RUN_LAST,
+ 0, /* default signal handler */
+ nullptr, nullptr,
+ g_cclosure_marshal_VOID__VOID,
+ G_TYPE_NONE, 0);
+ mai_atk_object_signals [RESIZE] =
+ g_signal_new ("resize",
+ MAI_TYPE_ATK_OBJECT,
+ G_SIGNAL_RUN_LAST,
+ 0, /* default signal handler */
+ nullptr, nullptr,
+ g_cclosure_marshal_VOID__VOID,
+ G_TYPE_NONE, 0);
+ mai_atk_object_signals [RESTORE] =
+ g_signal_new ("restore",
+ MAI_TYPE_ATK_OBJECT,
+ G_SIGNAL_RUN_LAST,
+ 0, /* default signal handler */
+ nullptr, nullptr,
+ g_cclosure_marshal_VOID__VOID,
+ G_TYPE_NONE, 0);
+
+}
+
+void
+initializeCB(AtkObject *aAtkObj, gpointer aData)
+{
+ NS_ASSERTION((IS_MAI_OBJECT(aAtkObj)), "Invalid AtkObject");
+ NS_ASSERTION(aData, "Invalid Data to init AtkObject");
+ if (!aAtkObj || !aData)
+ return;
+
+ /* call parent init function */
+ /* AtkObjectClass has not a "initialize" function now,
+ * maybe it has later
+ */
+
+ if (ATK_OBJECT_CLASS(parent_class)->initialize)
+ ATK_OBJECT_CLASS(parent_class)->initialize(aAtkObj, aData);
+
+ /* initialize object */
+ MAI_ATK_OBJECT(aAtkObj)->accWrap.SetBits(reinterpret_cast<uintptr_t>(aData));
+}
+
+void
+finalizeCB(GObject *aObj)
+{
+ if (!IS_MAI_OBJECT(aObj))
+ return;
+ NS_ASSERTION(MAI_ATK_OBJECT(aObj)->accWrap.IsNull(), "AccWrap NOT null");
+
+ // call parent finalize function
+ // finalize of GObjectClass will unref the accessible parent if has
+ if (G_OBJECT_CLASS (parent_class)->finalize)
+ G_OBJECT_CLASS (parent_class)->finalize(aObj);
+}
+
+const gchar*
+getNameCB(AtkObject* aAtkObj)
+{
+ nsAutoString name;
+ AccessibleWrap* accWrap = GetAccessibleWrap(aAtkObj);
+ if (accWrap)
+ accWrap->Name(name);
+ else if (ProxyAccessible* proxy = GetProxy(aAtkObj))
+ proxy->Name(name);
+ else
+ return nullptr;
+
+ // XXX Firing an event from here does not seem right
+ MaybeFireNameChange(aAtkObj, name);
+
+ return aAtkObj->name;
+}
+
+static void
+MaybeFireNameChange(AtkObject* aAtkObj, const nsString& aNewName)
+{
+ NS_ConvertUTF16toUTF8 newNameUTF8(aNewName);
+ if (aAtkObj->name && !strcmp(aAtkObj->name, newNameUTF8.get()))
+ return;
+
+ // Below we duplicate the functionality of atk_object_set_name(),
+ // but without calling atk_object_get_name(). Instead of
+ // atk_object_get_name() we directly access aAtkObj->name. This is because
+ // atk_object_get_name() would call getNameCB() which would call
+ // MaybeFireNameChange() (or atk_object_set_name() before this problem was
+ // fixed) and we would get an infinite recursion.
+ // See http://bugzilla.mozilla.org/733712
+
+ // Do not notify for initial name setting.
+ // See bug http://bugzilla.gnome.org/665870
+ bool notify = !!aAtkObj->name;
+
+ free(aAtkObj->name);
+ aAtkObj->name = strdup(newNameUTF8.get());
+
+ if (notify)
+ g_object_notify(G_OBJECT(aAtkObj), "accessible-name");
+}
+
+const gchar *
+getDescriptionCB(AtkObject *aAtkObj)
+{
+ nsAutoString uniDesc;
+ AccessibleWrap* accWrap = GetAccessibleWrap(aAtkObj);
+ if (accWrap) {
+ if (accWrap->IsDefunct())
+ return nullptr;
+
+ accWrap->Description(uniDesc);
+ } else if (ProxyAccessible* proxy = GetProxy(aAtkObj)) {
+ proxy->Description(uniDesc);
+ } else {
+ return nullptr;
+ }
+
+ NS_ConvertUTF8toUTF16 objDesc(aAtkObj->description);
+ if (!uniDesc.Equals(objDesc))
+ atk_object_set_description(aAtkObj,
+ NS_ConvertUTF16toUTF8(uniDesc).get());
+
+ return aAtkObj->description;
+}
+
+AtkRole
+getRoleCB(AtkObject *aAtkObj)
+{
+ if (aAtkObj->role != ATK_ROLE_INVALID)
+ return aAtkObj->role;
+
+ AccessibleOrProxy acc = GetInternalObj(aAtkObj);
+ if (acc.IsNull()) {
+ return ATK_ROLE_INVALID;
+ }
+
+#ifdef DEBUG
+ if (AccessibleWrap* accWrap = GetAccessibleWrap(aAtkObj)) {
+ NS_ASSERTION(nsAccUtils::IsTextInterfaceSupportCorrect(accWrap),
+ "Does not support Text interface when it should");
+ }
+#endif
+
+#define ROLE(geckoRole, stringRole, atkRole, macRole, \
+ msaaRole, ia2Role, nameRule) \
+ case roles::geckoRole: \
+ aAtkObj->role = atkRole; \
+ break;
+
+ switch (acc.Role()) {
+#include "RoleMap.h"
+ default:
+ MOZ_CRASH("Unknown role.");
+ }
+
+#undef ROLE
+
+ if (aAtkObj->role == ATK_ROLE_LIST_BOX && !IsAtkVersionAtLeast(2, 1))
+ aAtkObj->role = ATK_ROLE_LIST;
+ else if (aAtkObj->role == ATK_ROLE_TABLE_ROW && !IsAtkVersionAtLeast(2, 1))
+ aAtkObj->role = ATK_ROLE_LIST_ITEM;
+ else if (aAtkObj->role == ATK_ROLE_MATH && !IsAtkVersionAtLeast(2, 12))
+ aAtkObj->role = ATK_ROLE_SECTION;
+ else if (aAtkObj->role == ATK_ROLE_STATIC && !IsAtkVersionAtLeast(2, 16))
+ aAtkObj->role = ATK_ROLE_TEXT;
+ else if ((aAtkObj->role == ATK_ROLE_MATH_FRACTION ||
+ aAtkObj->role == ATK_ROLE_MATH_ROOT) && !IsAtkVersionAtLeast(2, 16))
+ aAtkObj->role = ATK_ROLE_SECTION;
+
+ return aAtkObj->role;
+}
+
+static AtkAttributeSet*
+ConvertToAtkAttributeSet(nsIPersistentProperties* aAttributes)
+{
+ if (!aAttributes)
+ return nullptr;
+
+ AtkAttributeSet *objAttributeSet = nullptr;
+ nsCOMPtr<nsISimpleEnumerator> propEnum;
+ nsresult rv = aAttributes->Enumerate(getter_AddRefs(propEnum));
+ NS_ENSURE_SUCCESS(rv, nullptr);
+
+ bool hasMore;
+ while (NS_SUCCEEDED(propEnum->HasMoreElements(&hasMore)) && hasMore) {
+ nsCOMPtr<nsISupports> sup;
+ rv = propEnum->GetNext(getter_AddRefs(sup));
+ NS_ENSURE_SUCCESS(rv, objAttributeSet);
+
+ nsCOMPtr<nsIPropertyElement> propElem(do_QueryInterface(sup));
+ NS_ENSURE_TRUE(propElem, objAttributeSet);
+
+ nsAutoCString name;
+ rv = propElem->GetKey(name);
+ NS_ENSURE_SUCCESS(rv, objAttributeSet);
+
+ nsAutoString value;
+ rv = propElem->GetValue(value);
+ NS_ENSURE_SUCCESS(rv, objAttributeSet);
+
+ AtkAttribute *objAttr = (AtkAttribute *)g_malloc(sizeof(AtkAttribute));
+ objAttr->name = g_strdup(name.get());
+ objAttr->value = g_strdup(NS_ConvertUTF16toUTF8(value).get());
+ objAttributeSet = g_slist_prepend(objAttributeSet, objAttr);
+ }
+
+ //libspi will free it
+ return objAttributeSet;
+}
+
+AtkAttributeSet*
+GetAttributeSet(Accessible* aAccessible)
+{
+ nsCOMPtr<nsIPersistentProperties> attributes = aAccessible->Attributes();
+ if (attributes) {
+ // There is no ATK state for haspopup, must use object attribute to expose
+ // the same info.
+ if (aAccessible->State() & states::HASPOPUP) {
+ nsAutoString unused;
+ attributes->SetStringProperty(NS_LITERAL_CSTRING("haspopup"),
+ NS_LITERAL_STRING("true"), unused);
+ }
+
+ return ConvertToAtkAttributeSet(attributes);
+ }
+
+ return nullptr;
+}
+
+AtkAttributeSet *
+getAttributesCB(AtkObject *aAtkObj)
+{
+ AccessibleWrap* accWrap = GetAccessibleWrap(aAtkObj);
+ if (accWrap)
+ return GetAttributeSet(accWrap);
+
+ ProxyAccessible* proxy = GetProxy(aAtkObj);
+ if (!proxy)
+ return nullptr;
+
+ AutoTArray<Attribute, 10> attrs;
+ proxy->Attributes(&attrs);
+ if (attrs.IsEmpty())
+ return nullptr;
+
+ AtkAttributeSet* objAttributeSet = nullptr;
+ for (uint32_t i = 0; i < attrs.Length(); i++) {
+ AtkAttribute *objAttr = (AtkAttribute *)g_malloc(sizeof(AtkAttribute));
+ objAttr->name = g_strdup(attrs[i].Name().get());
+ objAttr->value = g_strdup(NS_ConvertUTF16toUTF8(attrs[i].Value()).get());
+ objAttributeSet = g_slist_prepend(objAttributeSet, objAttr);
+ }
+
+ return objAttributeSet;
+}
+
+const gchar*
+GetLocaleCB(AtkObject* aAtkObj)
+{
+ AccessibleWrap* accWrap = GetAccessibleWrap(aAtkObj);
+ if (!accWrap)
+ return nullptr;
+
+ nsAutoString locale;
+ accWrap->Language(locale);
+ return AccessibleWrap::ReturnString(locale);
+}
+
+AtkObject *
+getParentCB(AtkObject *aAtkObj)
+{
+ if (aAtkObj->accessible_parent)
+ return aAtkObj->accessible_parent;
+
+ AccessibleOrProxy acc = GetInternalObj(aAtkObj);
+ if (acc.IsNull()) {
+ return nullptr;
+ }
+
+ AccessibleOrProxy parent = acc.Parent();
+ AtkObject* atkParent = !parent.IsNull() ? GetWrapperFor(parent) : nullptr;
+ if (atkParent)
+ atk_object_set_parent(aAtkObj, atkParent);
+
+ return aAtkObj->accessible_parent;
+}
+
+gint
+getChildCountCB(AtkObject *aAtkObj)
+{
+ if (AccessibleWrap* accWrap = GetAccessibleWrap(aAtkObj)) {
+ if (nsAccUtils::MustPrune(accWrap)) {
+ return 0;
+ }
+
+ uint32_t count = accWrap->EmbeddedChildCount();
+ if (count) {
+ return static_cast<gint>(count);
+ }
+
+ OuterDocAccessible* outerDoc = accWrap->AsOuterDoc();
+ if (outerDoc && outerDoc->RemoteChildDoc()) {
+ return 1;
+ }
+ }
+
+ ProxyAccessible* proxy = GetProxy(aAtkObj);
+ if (proxy && !proxy->MustPruneChildren()) {
+ return proxy->EmbeddedChildCount();
+ }
+
+ return 0;
+}
+
+AtkObject *
+refChildCB(AtkObject *aAtkObj, gint aChildIndex)
+{
+ // aChildIndex should not be less than zero
+ if (aChildIndex < 0) {
+ return nullptr;
+ }
+
+ AtkObject* childAtkObj = nullptr;
+ AccessibleWrap* accWrap = GetAccessibleWrap(aAtkObj);
+ if (accWrap) {
+ if (nsAccUtils::MustPrune(accWrap)) {
+ return nullptr;
+ }
+
+ Accessible* accChild = accWrap->GetEmbeddedChildAt(aChildIndex);
+ if (accChild) {
+ childAtkObj = AccessibleWrap::GetAtkObject(accChild);
+ } else {
+ OuterDocAccessible* docOwner = accWrap->AsOuterDoc();
+ if (docOwner) {
+ ProxyAccessible* proxyDoc = docOwner->RemoteChildDoc();
+ if (proxyDoc)
+ childAtkObj = GetWrapperFor(proxyDoc);
+ }
+ }
+ } else if (ProxyAccessible* proxy = GetProxy(aAtkObj)) {
+ if (proxy->MustPruneChildren())
+ return nullptr;
+
+ ProxyAccessible* child = proxy->EmbeddedChildAt(aChildIndex);
+ if (child)
+ childAtkObj = GetWrapperFor(child);
+ } else {
+ return nullptr;
+ }
+
+ NS_ASSERTION(childAtkObj, "Fail to get AtkObj");
+ if (!childAtkObj)
+ return nullptr;
+
+ g_object_ref(childAtkObj);
+
+ if (aAtkObj != childAtkObj->accessible_parent)
+ atk_object_set_parent(childAtkObj, aAtkObj);
+
+ return childAtkObj;
+}
+
+gint
+getIndexInParentCB(AtkObject* aAtkObj)
+{
+ // We don't use Accessible::IndexInParent() because we don't include text
+ // leaf nodes as children in ATK.
+ if (ProxyAccessible* proxy = GetProxy(aAtkObj)) {
+ if (ProxyAccessible* parent = proxy->Parent())
+ return parent->IndexOfEmbeddedChild(proxy);
+
+ if (proxy->OuterDocOfRemoteBrowser())
+ return 0;
+
+ return -1;
+ }
+
+ AccessibleWrap* accWrap = GetAccessibleWrap(aAtkObj);
+ if (!accWrap) {
+ return -1;
+ }
+
+ Accessible* parent = accWrap->Parent();
+ if (!parent)
+ return -1; // No parent
+
+ return parent->GetIndexOfEmbeddedChild(accWrap);
+}
+
+static void
+TranslateStates(uint64_t aState, AtkStateSet* aStateSet)
+{
+ // atk doesn't have a read only state so read only things shouldn't be
+ // editable.
+ if (aState & states::READONLY)
+ aState &= ~states::EDITABLE;
+
+ // Convert every state to an entry in AtkStateMap
+ uint32_t stateIndex = 0;
+ uint64_t bitMask = 1;
+ while (gAtkStateMap[stateIndex].stateMapEntryType != kNoSuchState) {
+ if (gAtkStateMap[stateIndex].atkState) { // There's potentially an ATK state for this
+ bool isStateOn = (aState & bitMask) != 0;
+ if (gAtkStateMap[stateIndex].stateMapEntryType == kMapOpposite) {
+ isStateOn = !isStateOn;
+ }
+ if (isStateOn) {
+ atk_state_set_add_state(aStateSet, gAtkStateMap[stateIndex].atkState);
+ }
+ }
+ bitMask <<= 1;
+ ++ stateIndex;
+ }
+}
+
+AtkStateSet *
+refStateSetCB(AtkObject *aAtkObj)
+{
+ AtkStateSet *state_set = nullptr;
+ state_set = ATK_OBJECT_CLASS(parent_class)->ref_state_set(aAtkObj);
+
+ AccessibleWrap* accWrap = GetAccessibleWrap(aAtkObj);
+ if (accWrap)
+ TranslateStates(accWrap->State(), state_set);
+ else if (ProxyAccessible* proxy = GetProxy(aAtkObj))
+ TranslateStates(proxy->State(), state_set);
+ else
+ TranslateStates(states::DEFUNCT, state_set);
+
+ return state_set;
+}
+
+static void
+UpdateAtkRelation(RelationType aType, Accessible* aAcc,
+ AtkRelationType aAtkType, AtkRelationSet* aAtkSet)
+{
+ if (aAtkType == ATK_RELATION_NULL)
+ return;
+
+ AtkRelation* atkRelation =
+ atk_relation_set_get_relation_by_type(aAtkSet, aAtkType);
+ if (atkRelation)
+ atk_relation_set_remove(aAtkSet, atkRelation);
+
+ Relation rel(aAcc->RelationByType(aType));
+ nsTArray<AtkObject*> targets;
+ Accessible* tempAcc = nullptr;
+ while ((tempAcc = rel.Next()))
+ targets.AppendElement(AccessibleWrap::GetAtkObject(tempAcc));
+
+ if (aType == RelationType::EMBEDS && aAcc->IsRoot()) {
+ if (ProxyAccessible* proxyDoc =
+ aAcc->AsRoot()->GetPrimaryRemoteTopLevelContentDoc()) {
+ targets.AppendElement(GetWrapperFor(proxyDoc));
+ }
+ }
+
+ if (targets.Length()) {
+ atkRelation = atk_relation_new(targets.Elements(),
+ targets.Length(), aAtkType);
+ atk_relation_set_add(aAtkSet, atkRelation);
+ g_object_unref(atkRelation);
+ }
+}
+
+AtkRelationSet *
+refRelationSetCB(AtkObject *aAtkObj)
+{
+ AtkRelationSet* relation_set =
+ ATK_OBJECT_CLASS(parent_class)->ref_relation_set(aAtkObj);
+
+ const AtkRelationType typeMap[] = {
+#define RELATIONTYPE(gecko, s, atk, m, i) atk,
+#include "RelationTypeMap.h"
+#undef RELATIONTYPE
+ };
+
+ if (ProxyAccessible* proxy = GetProxy(aAtkObj)) {
+ nsTArray<RelationType> types;
+ nsTArray<nsTArray<ProxyAccessible*>> targetSets;
+ proxy->Relations(&types, &targetSets);
+
+ size_t relationCount = types.Length();
+ for (size_t i = 0; i < relationCount; i++) {
+ if (typeMap[static_cast<uint32_t>(types[i])] == ATK_RELATION_NULL)
+ continue;
+
+ size_t targetCount = targetSets[i].Length();
+ AutoTArray<AtkObject*, 5> wrappers;
+ for (size_t j = 0; j < targetCount; j++)
+ wrappers.AppendElement(GetWrapperFor(targetSets[i][j]));
+
+ AtkRelationType atkType = typeMap[static_cast<uint32_t>(types[i])];
+ AtkRelation* atkRelation =
+ atk_relation_set_get_relation_by_type(relation_set, atkType);
+ if (atkRelation)
+ atk_relation_set_remove(relation_set, atkRelation);
+
+ atkRelation = atk_relation_new(wrappers.Elements(), wrappers.Length(),
+ atkType);
+ atk_relation_set_add(relation_set, atkRelation);
+ g_object_unref(atkRelation);
+ }
+ }
+
+ AccessibleWrap* accWrap = GetAccessibleWrap(aAtkObj);
+ if (!accWrap)
+ return relation_set;
+
+#define RELATIONTYPE(geckoType, geckoTypeName, atkType, msaaType, ia2Type) \
+ UpdateAtkRelation(RelationType::geckoType, accWrap, atkType, relation_set);
+
+#include "RelationTypeMap.h"
+
+#undef RELATIONTYPE
+
+ return relation_set;
+}
+
+// Check if aAtkObj is a valid MaiAtkObject, and return the AccessibleWrap
+// for it.
+AccessibleWrap*
+GetAccessibleWrap(AtkObject* aAtkObj)
+{
+ bool isMAIObject = IS_MAI_OBJECT(aAtkObj);
+ NS_ENSURE_TRUE(isMAIObject || MAI_IS_ATK_SOCKET(aAtkObj),
+ nullptr);
+
+ AccessibleWrap* accWrap = nullptr;
+ if (isMAIObject) {
+ Accessible* acc = MAI_ATK_OBJECT(aAtkObj)->accWrap.AsAccessible();
+ accWrap = static_cast<AccessibleWrap*>(acc);
+ } else {
+ accWrap = MAI_ATK_SOCKET(aAtkObj)->accWrap;
+ }
+
+ // Check if the accessible was deconstructed.
+ if (!accWrap)
+ return nullptr;
+
+ NS_ENSURE_TRUE(accWrap->GetAtkObject() == aAtkObj, nullptr);
+
+ AccessibleWrap* appAccWrap = ApplicationAcc();
+ if (appAccWrap != accWrap && !accWrap->IsValidObject())
+ return nullptr;
+
+ return accWrap;
+}
+
+ProxyAccessible*
+GetProxy(AtkObject* aObj)
+{
+ return GetInternalObj(aObj).AsProxy();
+}
+
+AccessibleOrProxy
+GetInternalObj(AtkObject* aObj)
+{
+ if (!aObj || !IS_MAI_OBJECT(aObj))
+ return nullptr;
+
+ return MAI_ATK_OBJECT(aObj)->accWrap;
+}
+
+AtkObject*
+GetWrapperFor(ProxyAccessible* aProxy)
+{
+ return reinterpret_cast<AtkObject*>(aProxy->GetWrapper() & ~IS_PROXY);
+}
+
+AtkObject*
+GetWrapperFor(AccessibleOrProxy aObj)
+{
+ if (aObj.IsProxy()) {
+ return GetWrapperFor(aObj.AsProxy());
+ }
+
+ return AccessibleWrap::GetAtkObject(aObj.AsAccessible());
+}
+
+static uint16_t
+GetInterfacesForProxy(ProxyAccessible* aProxy, uint32_t aInterfaces)
+{
+ uint16_t interfaces = 1 << MAI_INTERFACE_COMPONENT;
+ if (aInterfaces & Interfaces::HYPERTEXT)
+ interfaces |= (1 << MAI_INTERFACE_HYPERTEXT) | (1 << MAI_INTERFACE_TEXT)
+ | (1 << MAI_INTERFACE_EDITABLE_TEXT);
+
+ if (aInterfaces & Interfaces::HYPERLINK)
+ interfaces |= 1 << MAI_INTERFACE_HYPERLINK_IMPL;
+
+ if (aInterfaces & Interfaces::VALUE)
+ interfaces |= 1 << MAI_INTERFACE_VALUE;
+
+ if (aInterfaces & Interfaces::TABLE)
+ interfaces |= 1 << MAI_INTERFACE_TABLE;
+
+ if (aInterfaces & Interfaces::TABLECELL)
+ interfaces |= 1 << MAI_INTERFACE_TABLE_CELL;
+
+ if (aInterfaces & Interfaces::IMAGE)
+ interfaces |= 1 << MAI_INTERFACE_IMAGE;
+
+ if (aInterfaces & Interfaces::DOCUMENT)
+ interfaces |= 1 << MAI_INTERFACE_DOCUMENT;
+
+ if (aInterfaces & Interfaces::SELECTION) {
+ interfaces |= 1 << MAI_INTERFACE_SELECTION;
+ }
+
+ if (aInterfaces & Interfaces::ACTION) {
+ interfaces |= 1 << MAI_INTERFACE_ACTION;
+ }
+
+ return interfaces;
+}
+
+void
+a11y::ProxyCreated(ProxyAccessible* aProxy, uint32_t aInterfaces)
+{
+ GType type = GetMaiAtkType(GetInterfacesForProxy(aProxy, aInterfaces));
+ NS_ASSERTION(type, "why don't we have a type!");
+
+ AtkObject* obj =
+ reinterpret_cast<AtkObject *>
+ (g_object_new(type, nullptr));
+ if (!obj)
+ return;
+
+ uintptr_t inner = reinterpret_cast<uintptr_t>(aProxy) | IS_PROXY;
+ atk_object_initialize(obj, reinterpret_cast<gpointer>(inner));
+ obj->role = ATK_ROLE_INVALID;
+ obj->layer = ATK_LAYER_INVALID;
+ aProxy->SetWrapper(reinterpret_cast<uintptr_t>(obj) | IS_PROXY);
+}
+
+void
+a11y::ProxyDestroyed(ProxyAccessible* aProxy)
+{
+ auto obj = reinterpret_cast<MaiAtkObject*>(aProxy->GetWrapper() & ~IS_PROXY);
+ if (!obj) {
+ return;
+ }
+
+ obj->Shutdown();
+ g_object_unref(obj);
+ aProxy->SetWrapper(0);
+}
+
+nsresult
+AccessibleWrap::HandleAccEvent(AccEvent* aEvent)
+{
+ nsresult rv = Accessible::HandleAccEvent(aEvent);
+ NS_ENSURE_SUCCESS(rv, rv);
+
+ if (IPCAccessibilityActive()) {
+ return NS_OK;
+ }
+
+ Accessible* accessible = aEvent->GetAccessible();
+ NS_ENSURE_TRUE(accessible, NS_ERROR_FAILURE);
+
+ // The accessible can become defunct if we have an xpcom event listener
+ // which decides it would be fun to change the DOM and flush layout.
+ if (accessible->IsDefunct())
+ return NS_OK;
+
+ uint32_t type = aEvent->GetEventType();
+
+ AtkObject* atkObj = AccessibleWrap::GetAtkObject(accessible);
+
+ // We don't create ATK objects for plain text leaves, just return NS_OK in
+ // such case.
+ if (!atkObj) {
+ NS_ASSERTION(type == nsIAccessibleEvent::EVENT_SHOW ||
+ type == nsIAccessibleEvent::EVENT_HIDE,
+ "Event other than SHOW and HIDE fired for plain text leaves");
+ return NS_OK;
+ }
+
+ AccessibleWrap* accWrap = GetAccessibleWrap(atkObj);
+ if (!accWrap) {
+ return NS_OK; // Node is shut down
+ }
+
+ switch (type) {
+ case nsIAccessibleEvent::EVENT_STATE_CHANGE:
+ {
+ AccStateChangeEvent* event = downcast_accEvent(aEvent);
+ MAI_ATK_OBJECT(atkObj)->FireStateChangeEvent(event->GetState(),
+ event->IsStateEnabled());
+ break;
+ }
+
+ case nsIAccessibleEvent::EVENT_TEXT_REMOVED:
+ case nsIAccessibleEvent::EVENT_TEXT_INSERTED:
+ {
+ AccTextChangeEvent* event = downcast_accEvent(aEvent);
+ NS_ENSURE_TRUE(event, NS_ERROR_FAILURE);
+
+ MAI_ATK_OBJECT(atkObj)-> FireTextChangeEvent(event->ModifiedText(),
+ event->GetStartOffset(),
+ event->GetLength(),
+ event->IsTextInserted(),
+ event->IsFromUserInput());
+
+ return NS_OK;
+ }
+
+ case nsIAccessibleEvent::EVENT_FOCUS:
+ {
+ a11y::RootAccessible* rootAccWrap = accWrap->RootAccessible();
+ if (rootAccWrap && rootAccWrap->mActivated) {
+ atk_focus_tracker_notify(atkObj);
+ // Fire state change event for focus
+ atk_object_notify_state_change(atkObj, ATK_STATE_FOCUSED, true);
+ return NS_OK;
+ }
+ } break;
+
+ case nsIAccessibleEvent::EVENT_NAME_CHANGE:
+ {
+ nsAutoString newName;
+ accessible->Name(newName);
+
+ MaybeFireNameChange(atkObj, newName);
+
+ break;
+ }
+
+ case nsIAccessibleEvent::EVENT_VALUE_CHANGE:
+ case nsIAccessibleEvent::EVENT_TEXT_VALUE_CHANGE:
+ if (accessible->HasNumericValue()) {
+ // Make sure this is a numeric value. Don't fire for string value changes
+ // (e.g. text editing) ATK values are always numeric.
+ g_object_notify((GObject*)atkObj, "accessible-value");
+ }
+ break;
+
+ case nsIAccessibleEvent::EVENT_SELECTION:
+ case nsIAccessibleEvent::EVENT_SELECTION_ADD:
+ case nsIAccessibleEvent::EVENT_SELECTION_REMOVE:
+ {
+ // XXX: dupe events may be fired
+ AccSelChangeEvent* selChangeEvent = downcast_accEvent(aEvent);
+ g_signal_emit_by_name(AccessibleWrap::GetAtkObject(selChangeEvent->Widget()),
+ "selection_changed");
+ break;
+ }
+
+ case nsIAccessibleEvent::EVENT_SELECTION_WITHIN:
+ {
+ g_signal_emit_by_name(atkObj, "selection_changed");
+ break;
+ }
+
+ case nsIAccessibleEvent::EVENT_ALERT:
+ // A hack using state change showing events as alert events.
+ atk_object_notify_state_change(atkObj, ATK_STATE_SHOWING, true);
+ break;
+
+ case nsIAccessibleEvent::EVENT_TEXT_SELECTION_CHANGED:
+ g_signal_emit_by_name(atkObj, "text_selection_changed");
+ break;
+
+ case nsIAccessibleEvent::EVENT_TEXT_CARET_MOVED:
+ {
+ AccCaretMoveEvent* caretMoveEvent = downcast_accEvent(aEvent);
+ NS_ASSERTION(caretMoveEvent, "Event needs event data");
+ if (!caretMoveEvent)
+ break;
+
+ int32_t caretOffset = caretMoveEvent->GetCaretOffset();
+ g_signal_emit_by_name(atkObj, "text_caret_moved", caretOffset);
+ } break;
+
+ case nsIAccessibleEvent::EVENT_TEXT_ATTRIBUTE_CHANGED:
+ g_signal_emit_by_name(atkObj, "text-attributes-changed");
+ break;
+
+ case nsIAccessibleEvent::EVENT_TABLE_MODEL_CHANGED:
+ g_signal_emit_by_name(atkObj, "model_changed");
+ break;
+
+ case nsIAccessibleEvent::EVENT_TABLE_ROW_INSERT:
+ {
+ AccTableChangeEvent* tableEvent = downcast_accEvent(aEvent);
+ NS_ENSURE_TRUE(tableEvent, NS_ERROR_FAILURE);
+
+ int32_t rowIndex = tableEvent->GetIndex();
+ int32_t numRows = tableEvent->GetCount();
+
+ g_signal_emit_by_name(atkObj, "row_inserted", rowIndex, numRows);
+ } break;
+
+ case nsIAccessibleEvent::EVENT_TABLE_ROW_DELETE:
+ {
+ AccTableChangeEvent* tableEvent = downcast_accEvent(aEvent);
+ NS_ENSURE_TRUE(tableEvent, NS_ERROR_FAILURE);
+
+ int32_t rowIndex = tableEvent->GetIndex();
+ int32_t numRows = tableEvent->GetCount();
+
+ g_signal_emit_by_name(atkObj, "row_deleted", rowIndex, numRows);
+ } break;
+
+ case nsIAccessibleEvent::EVENT_TABLE_ROW_REORDER:
+ {
+ g_signal_emit_by_name(atkObj, "row_reordered");
+ break;
+ }
+
+ case nsIAccessibleEvent::EVENT_TABLE_COLUMN_INSERT:
+ {
+ AccTableChangeEvent* tableEvent = downcast_accEvent(aEvent);
+ NS_ENSURE_TRUE(tableEvent, NS_ERROR_FAILURE);
+
+ int32_t colIndex = tableEvent->GetIndex();
+ int32_t numCols = tableEvent->GetCount();
+ g_signal_emit_by_name(atkObj, "column_inserted", colIndex, numCols);
+ } break;
+
+ case nsIAccessibleEvent::EVENT_TABLE_COLUMN_DELETE:
+ {
+ AccTableChangeEvent* tableEvent = downcast_accEvent(aEvent);
+ NS_ENSURE_TRUE(tableEvent, NS_ERROR_FAILURE);
+
+ int32_t colIndex = tableEvent->GetIndex();
+ int32_t numCols = tableEvent->GetCount();
+ g_signal_emit_by_name(atkObj, "column_deleted", colIndex, numCols);
+ } break;
+
+ case nsIAccessibleEvent::EVENT_TABLE_COLUMN_REORDER:
+ g_signal_emit_by_name(atkObj, "column_reordered");
+ break;
+
+ case nsIAccessibleEvent::EVENT_SECTION_CHANGED:
+ g_signal_emit_by_name(atkObj, "visible_data_changed");
+ break;
+
+ case nsIAccessibleEvent::EVENT_SHOW:
+ {
+ AccMutationEvent* event = downcast_accEvent(aEvent);
+ Accessible* parentAcc = event ? event->Parent() : accessible->Parent();
+ AtkObject* parent = AccessibleWrap::GetAtkObject(parentAcc);
+ NS_ENSURE_STATE(parent);
+ auto obj = reinterpret_cast<MaiAtkObject*>(atkObj);
+ obj->FireAtkShowHideEvent(parent, true, aEvent->IsFromUserInput());
+ return NS_OK;
+ }
+
+ case nsIAccessibleEvent::EVENT_HIDE:
+ {
+ // XXX - Handle native dialog accessibles.
+ if (!accessible->IsRoot() && accessible->HasARIARole() &&
+ accessible->ARIARole() == roles::DIALOG) {
+ guint id = g_signal_lookup("deactivate", MAI_TYPE_ATK_OBJECT);
+ g_signal_emit(atkObj, id, 0);
+ }
+
+ AccMutationEvent* event = downcast_accEvent(aEvent);
+ Accessible* parentAcc = event ? event->Parent() : accessible->Parent();
+ AtkObject* parent = AccessibleWrap::GetAtkObject(parentAcc);
+ NS_ENSURE_STATE(parent);
+ auto obj = reinterpret_cast<MaiAtkObject*>(atkObj);
+ obj->FireAtkShowHideEvent(parent, false, aEvent->IsFromUserInput());
+ return NS_OK;
+ }
+
+ /*
+ * Because dealing with menu is very different between nsIAccessible
+ * and ATK, and the menu activity is important, specially transfer the
+ * following two event.
+ * Need more verification by AT test.
+ */
+ case nsIAccessibleEvent::EVENT_MENU_START:
+ case nsIAccessibleEvent::EVENT_MENU_END:
+ break;
+
+ case nsIAccessibleEvent::EVENT_WINDOW_ACTIVATE:
+ {
+ accessible->AsRoot()->mActivated = true;
+ guint id = g_signal_lookup("activate", MAI_TYPE_ATK_OBJECT);
+ g_signal_emit(atkObj, id, 0);
+
+ // Always fire a current focus event after activation.
+ FocusMgr()->ForceFocusEvent();
+ } break;
+
+ case nsIAccessibleEvent::EVENT_WINDOW_DEACTIVATE:
+ {
+ accessible->AsRoot()->mActivated = false;
+ guint id = g_signal_lookup("deactivate", MAI_TYPE_ATK_OBJECT);
+ g_signal_emit(atkObj, id, 0);
+ } break;
+
+ case nsIAccessibleEvent::EVENT_WINDOW_MAXIMIZE:
+ {
+ guint id = g_signal_lookup("maximize", MAI_TYPE_ATK_OBJECT);
+ g_signal_emit(atkObj, id, 0);
+ } break;
+
+ case nsIAccessibleEvent::EVENT_WINDOW_MINIMIZE:
+ {
+ guint id = g_signal_lookup("minimize", MAI_TYPE_ATK_OBJECT);
+ g_signal_emit(atkObj, id, 0);
+ } break;
+
+ case nsIAccessibleEvent::EVENT_WINDOW_RESTORE:
+ {
+ guint id = g_signal_lookup("restore", MAI_TYPE_ATK_OBJECT);
+ g_signal_emit(atkObj, id, 0);
+ } break;
+
+ case nsIAccessibleEvent::EVENT_DOCUMENT_LOAD_COMPLETE:
+ g_signal_emit_by_name (atkObj, "load_complete");
+ // XXX - Handle native dialog accessibles.
+ if (!accessible->IsRoot() && accessible->HasARIARole() &&
+ accessible->ARIARole() == roles::DIALOG) {
+ guint id = g_signal_lookup("activate", MAI_TYPE_ATK_OBJECT);
+ g_signal_emit(atkObj, id, 0);
+ }
+ break;
+
+ case nsIAccessibleEvent::EVENT_DOCUMENT_RELOAD:
+ g_signal_emit_by_name (atkObj, "reload");
+ break;
+
+ case nsIAccessibleEvent::EVENT_DOCUMENT_LOAD_STOPPED:
+ g_signal_emit_by_name (atkObj, "load_stopped");
+ break;
+
+ case nsIAccessibleEvent::EVENT_MENUPOPUP_START:
+ atk_focus_tracker_notify(atkObj); // fire extra focus event
+ atk_object_notify_state_change(atkObj, ATK_STATE_VISIBLE, true);
+ atk_object_notify_state_change(atkObj, ATK_STATE_SHOWING, true);
+ break;
+
+ case nsIAccessibleEvent::EVENT_MENUPOPUP_END:
+ atk_object_notify_state_change(atkObj, ATK_STATE_VISIBLE, false);
+ atk_object_notify_state_change(atkObj, ATK_STATE_SHOWING, false);
+ break;
+ }
+
+ return NS_OK;
+}
+
+void
+a11y::ProxyEvent(ProxyAccessible* aTarget, uint32_t aEventType)
+{
+ AtkObject* wrapper = GetWrapperFor(aTarget);
+
+ switch (aEventType) {
+ case nsIAccessibleEvent::EVENT_FOCUS:
+ atk_focus_tracker_notify(wrapper);
+ atk_object_notify_state_change(wrapper, ATK_STATE_FOCUSED, true);
+ break;
+ case nsIAccessibleEvent::EVENT_DOCUMENT_LOAD_COMPLETE:
+ g_signal_emit_by_name(wrapper, "load_complete");
+ break;
+ case nsIAccessibleEvent::EVENT_DOCUMENT_RELOAD:
+ g_signal_emit_by_name(wrapper, "reload");
+ break;
+ case nsIAccessibleEvent::EVENT_DOCUMENT_LOAD_STOPPED:
+ g_signal_emit_by_name(wrapper, "load_stopped");
+ break;
+ case nsIAccessibleEvent::EVENT_MENUPOPUP_START:
+ atk_focus_tracker_notify(wrapper); // fire extra focus event
+ atk_object_notify_state_change(wrapper, ATK_STATE_VISIBLE, true);
+ atk_object_notify_state_change(wrapper, ATK_STATE_SHOWING, true);
+ break;
+ case nsIAccessibleEvent::EVENT_MENUPOPUP_END:
+ atk_object_notify_state_change(wrapper, ATK_STATE_VISIBLE, false);
+ atk_object_notify_state_change(wrapper, ATK_STATE_SHOWING, false);
+ break;
+ case nsIAccessibleEvent::EVENT_ALERT:
+ // A hack using state change showing events as alert events.
+ atk_object_notify_state_change(wrapper, ATK_STATE_SHOWING, true);
+ break;
+ case nsIAccessibleEvent::EVENT_VALUE_CHANGE:
+ g_object_notify((GObject*)wrapper, "accessible-value");
+ break;
+ case nsIAccessibleEvent::EVENT_TEXT_SELECTION_CHANGED:
+ case nsIAccessibleEvent::EVENT_SELECTION_WITHIN:
+ g_signal_emit_by_name(wrapper, "selection_changed");
+ break;
+ }
+}
+
+void
+a11y::ProxyStateChangeEvent(ProxyAccessible* aTarget, uint64_t aState,
+ bool aEnabled)
+{
+ MaiAtkObject* atkObj = MAI_ATK_OBJECT(GetWrapperFor(aTarget));
+ atkObj->FireStateChangeEvent(aState, aEnabled);
+}
+
+void
+a11y::ProxyCaretMoveEvent(ProxyAccessible* aTarget, int32_t aOffset)
+{
+ AtkObject* wrapper = GetWrapperFor(aTarget);
+ g_signal_emit_by_name(wrapper, "text_caret_moved", aOffset);
+}
+
+void
+MaiAtkObject::FireStateChangeEvent(uint64_t aState, bool aEnabled)
+{
+ int32_t stateIndex = AtkStateMap::GetStateIndexFor(aState);
+ if (stateIndex >= 0) {
+ NS_ASSERTION(gAtkStateMap[stateIndex].stateMapEntryType != kNoSuchState,
+ "No such state");
+
+ if (gAtkStateMap[stateIndex].atkState != kNone) {
+ NS_ASSERTION(gAtkStateMap[stateIndex].stateMapEntryType != kNoStateChange,
+ "State changes should not fired for this state");
+
+ if (gAtkStateMap[stateIndex].stateMapEntryType == kMapOpposite)
+ aEnabled = !aEnabled;
+
+ // Fire state change for first state if there is one to map
+ atk_object_notify_state_change(&parent,
+ gAtkStateMap[stateIndex].atkState,
+ aEnabled);
+ }
+ }
+}
+
+void
+a11y::ProxyTextChangeEvent(ProxyAccessible* aTarget, const nsString& aStr,
+ int32_t aStart, uint32_t aLen, bool aIsInsert,
+ bool aFromUser)
+{
+ MaiAtkObject* atkObj = MAI_ATK_OBJECT(GetWrapperFor(aTarget));
+ atkObj->FireTextChangeEvent(aStr, aStart, aLen, aIsInsert, aFromUser);
+}
+
+#define OLD_TEXT_INSERTED "text_changed::insert"
+#define OLD_TEXT_REMOVED "text_changed::delete"
+static const char* oldTextChangeStrings[2][2] = {
+ { OLD_TEXT_REMOVED NON_USER_EVENT, OLD_TEXT_INSERTED NON_USER_EVENT },
+ { OLD_TEXT_REMOVED, OLD_TEXT_INSERTED }
+};
+
+#define TEXT_INSERTED "text-insert"
+#define TEXT_REMOVED "text-remove"
+#define NON_USER_DETAIL "::system"
+static const char* textChangedStrings[2][2] = {
+ { TEXT_REMOVED NON_USER_DETAIL, TEXT_INSERTED NON_USER_DETAIL },
+ { TEXT_REMOVED, TEXT_INSERTED}
+};
+
+void
+MaiAtkObject::FireTextChangeEvent(const nsString& aStr, int32_t aStart,
+ uint32_t aLen, bool aIsInsert,
+ bool aFromUser)
+{
+ if (gAvailableAtkSignals == eUnknown)
+ gAvailableAtkSignals =
+ g_signal_lookup("text-insert", G_OBJECT_TYPE(this)) ?
+ eHaveNewAtkTextSignals : eNoNewAtkSignals;
+
+ if (gAvailableAtkSignals == eNoNewAtkSignals) {
+ // XXX remove this code and the gHaveNewTextSignals check when we can
+ // stop supporting old atk since it doesn't really work anyway
+ // see bug 619002
+ const char* signal_name =
+ oldTextChangeStrings[aFromUser][aIsInsert];
+ g_signal_emit_by_name(this, signal_name, aStart, aLen);
+ } else {
+ const char* signal_name =
+ textChangedStrings[aFromUser][aIsInsert];
+ g_signal_emit_by_name(this, signal_name, aStart, aLen,
+ NS_ConvertUTF16toUTF8(aStr).get());
+ }
+}
+
+void
+a11y::ProxyShowHideEvent(ProxyAccessible* aTarget, ProxyAccessible* aParent,
+ bool aInsert, bool aFromUser)
+{
+ MaiAtkObject* obj = MAI_ATK_OBJECT(GetWrapperFor(aTarget));
+ obj->FireAtkShowHideEvent(GetWrapperFor(aParent), aInsert, aFromUser);
+}
+
+#define ADD_EVENT "children_changed::add"
+#define HIDE_EVENT "children_changed::remove"
+
+static const char *kMutationStrings[2][2] = {
+ { HIDE_EVENT NON_USER_EVENT, ADD_EVENT NON_USER_EVENT },
+ { HIDE_EVENT, ADD_EVENT },
+};
+
+void
+MaiAtkObject::FireAtkShowHideEvent(AtkObject* aParent, bool aIsAdded,
+ bool aFromUser)
+{
+ int32_t indexInParent = getIndexInParentCB(&this->parent);
+ const char *signal_name = kMutationStrings[aFromUser][aIsAdded];
+ g_signal_emit_by_name(aParent, signal_name, indexInParent, this, nullptr);
+}
+
+void
+a11y::ProxySelectionEvent(ProxyAccessible*, ProxyAccessible* aWidget, uint32_t)
+{
+ MaiAtkObject* obj = MAI_ATK_OBJECT(GetWrapperFor(aWidget));
+ g_signal_emit_by_name(obj, "selection_changed");
+}
+
+// static
+void
+AccessibleWrap::GetKeyBinding(Accessible* aAccessible, nsAString& aResult)
+{
+ // Return all key bindings including access key and keyboard shortcut.
+
+ // Get access key.
+ nsAutoString keyBindingsStr;
+ KeyBinding keyBinding = aAccessible->AccessKey();
+ if (!keyBinding.IsEmpty()) {
+ keyBinding.AppendToString(keyBindingsStr, KeyBinding::eAtkFormat);
+
+ Accessible* parent = aAccessible->Parent();
+ roles::Role role = parent ? parent->Role() : roles::NOTHING;
+ if (role == roles::PARENT_MENUITEM || role == roles::MENUITEM ||
+ role == roles::RADIO_MENU_ITEM || role == roles::CHECK_MENU_ITEM) {
+ // It is submenu, expose keyboard shortcuts from menu hierarchy like
+ // "s;<Alt>f:s"
+ nsAutoString keysInHierarchyStr = keyBindingsStr;
+ do {
+ KeyBinding parentKeyBinding = parent->AccessKey();
+ if (!parentKeyBinding.IsEmpty()) {
+ nsAutoString str;
+ parentKeyBinding.ToString(str, KeyBinding::eAtkFormat);
+ str.Append(':');
+
+ keysInHierarchyStr.Insert(str, 0);
+ }
+ } while ((parent = parent->Parent()) && parent->Role() != roles::MENUBAR);
+
+ keyBindingsStr.Append(';');
+ keyBindingsStr.Append(keysInHierarchyStr);
+ }
+ } else {
+ // No access key, add ';' to point this.
+ keyBindingsStr.Append(';');
+ }
+
+ // Get keyboard shortcut.
+ keyBindingsStr.Append(';');
+ keyBinding = aAccessible->KeyboardShortcut();
+ if (!keyBinding.IsEmpty()) {
+ keyBinding.AppendToString(keyBindingsStr, KeyBinding::eAtkFormat);
+ }
+ aResult = keyBindingsStr;
+}
+
+// static
+Accessible*
+AccessibleWrap::GetColumnHeader(TableAccessible* aAccessible, int32_t aColIdx)
+{
+ if (!aAccessible) {
+ return nullptr;
+ }
+
+ Accessible* cell = aAccessible->CellAt(0, aColIdx);
+ if (!cell) {
+ return nullptr;
+ }
+
+ // If the cell at the first row is column header then assume it is column
+ // header for all rows,
+ if (cell->Role() == roles::COLUMNHEADER) {
+ return cell;
+ }
+
+ // otherwise get column header for the data cell at the first row.
+ TableCellAccessible* tableCell = cell->AsTableCell();
+ if (!tableCell) {
+ return nullptr;
+ }
+
+ AutoTArray<Accessible*, 10> headerCells;
+ tableCell->ColHeaderCells(&headerCells);
+ if (headerCells.IsEmpty()) {
+ return nullptr;
+ }
+
+ return headerCells[0];
+}
+
+// static
+Accessible*
+AccessibleWrap::GetRowHeader(TableAccessible* aAccessible, int32_t aRowIdx)
+{
+ if (!aAccessible) {
+ return nullptr;
+ }
+
+ Accessible* cell = aAccessible->CellAt(aRowIdx, 0);
+ if (!cell) {
+ return nullptr;
+ }
+
+ // If the cell at the first column is row header then assume it is row
+ // header for all columns,
+ if (cell->Role() == roles::ROWHEADER) {
+ return cell;
+ }
+
+ // otherwise get row header for the data cell at the first column.
+ TableCellAccessible* tableCell = cell->AsTableCell();
+ if (!tableCell) {
+ return nullptr;
+ }
+
+ AutoTArray<Accessible*, 10> headerCells;
+ tableCell->RowHeaderCells(&headerCells);
+ if (headerCells.IsEmpty()) {
+ return nullptr;
+ }
+
+ return headerCells[0];
+}