Add m-esr52 at 52.6.0

1 files changed, 262 insertions, 0 deletions

diff --git a/accessible/atk/nsMaiHyperlink.cpp b/accessible/atk/nsMaiHyperlink.cpp
new file mode 100644
index 000000000..9d33f6665
--- /dev/null
+++ b/accessible/atk/nsMaiHyperlink.cpp
@@ -0,0 +1,262 @@
+/* -*- 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/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;
+}