Adding upstream version 124.0.1.upstream/124.0.1

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 216 insertions, 0 deletions

diff --git a/accessible/atk/nsMaiHyperlink.cpp b/accessible/atk/nsMaiHyperlink.cpp
new file mode 100644
index 0000000000..65f223e528
--- /dev/null
+++ b/accessible/atk/nsMaiHyperlink.cpp
@@ -0,0 +1,216 @@
+/* -*- 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;
+  }
+
+  Accessible* acc = maiLink->Acc();
+  if (!acc) {
+    return nullptr;
+  }
+
+  nsAutoCString cautoStr;
+  nsCOMPtr<nsIURI> uri = acc->AnchorURIAt(aLinkIndex);
+  if (!uri) return nullptr;
+
+  nsresult rv = uri->GetSpec(cautoStr);
+  NS_ENSURE_SUCCESS(rv, nullptr);
+
+  return g_strdup(cautoStr.get());
+}
+
+AtkObject* getObjectCB(AtkHyperlink* aLink, gint aLinkIndex) {
+  MaiHyperlink* maiLink = GetMaiHyperlink(aLink);
+  if (!maiLink) {
+    return nullptr;
+  }
+
+  Accessible* acc = maiLink->Acc();
+  if (!acc) {
+    return nullptr;
+  }
+
+  Accessible* anchor = acc->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;
+
+  Accessible* acc = maiLink->Acc();
+  if (!acc) {
+    return false;
+  }
+
+  return static_cast<gboolean>(acc->IsLinkValid());
+}
+
+gint getAnchorCountCB(AtkHyperlink* aLink) {
+  MaiHyperlink* maiLink = GetMaiHyperlink(aLink);
+  if (!maiLink) return -1;
+
+  Accessible* acc = maiLink->Acc();
+  if (!acc) {
+    return -1;
+  }
+
+  return static_cast<gint>(acc->AnchorCount());
+}