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6b7c34dbea
We can get the URI using the Value method that is already cached when caching is enabled. Differential Revision: https://phabricator.services.mozilla.com/D176067
217 lines
6.1 KiB
C++
217 lines
6.1 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "nsIURI.h"
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#include "nsMaiHyperlink.h"
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#include "mozilla/a11y/RemoteAccessible.h"
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using namespace mozilla::a11y;
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/* MaiAtkHyperlink */
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#define MAI_TYPE_ATK_HYPERLINK (mai_atk_hyperlink_get_type())
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#define MAI_ATK_HYPERLINK(obj) \
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(G_TYPE_CHECK_INSTANCE_CAST((obj), MAI_TYPE_ATK_HYPERLINK, MaiAtkHyperlink))
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#define MAI_ATK_HYPERLINK_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_CAST((klass), MAI_TYPE_ATK_HYPERLINK, \
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MaiAtkHyperlinkClass))
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#define MAI_IS_ATK_HYPERLINK(obj) \
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(G_TYPE_CHECK_INSTANCE_TYPE((obj), MAI_TYPE_ATK_HYPERLINK))
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#define MAI_IS_ATK_HYPERLINK_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_TYPE((klass), MAI_TYPE_ATK_HYPERLINK))
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#define MAI_ATK_HYPERLINK_GET_CLASS(obj) \
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(G_TYPE_INSTANCE_GET_CLASS((obj), MAI_TYPE_ATK_HYPERLINK, \
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MaiAtkHyperlinkClass))
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/**
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* This MaiAtkHyperlink is a thin wrapper, in the MAI namespace,
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* for AtkHyperlink
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*/
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struct MaiAtkHyperlink {
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AtkHyperlink parent;
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/*
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* The MaiHyperlink whose properties and features are exported via this
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* hyperlink instance.
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*/
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MaiHyperlink* maiHyperlink;
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};
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struct MaiAtkHyperlinkClass {
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AtkHyperlinkClass parent_class;
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};
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GType mai_atk_hyperlink_get_type(void);
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G_BEGIN_DECLS
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/* callbacks for AtkHyperlink */
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static void classInitCB(AtkHyperlinkClass* aClass);
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static void finalizeCB(GObject* aObj);
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/* callbacks for AtkHyperlink virtual functions */
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static gchar* getUriCB(AtkHyperlink* aLink, gint aLinkIndex);
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static AtkObject* getObjectCB(AtkHyperlink* aLink, gint aLinkIndex);
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static gint getEndIndexCB(AtkHyperlink* aLink);
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static gint getStartIndexCB(AtkHyperlink* aLink);
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static gboolean isValidCB(AtkHyperlink* aLink);
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static gint getAnchorCountCB(AtkHyperlink* aLink);
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G_END_DECLS
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static gpointer parent_class = nullptr;
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static MaiHyperlink* GetMaiHyperlink(AtkHyperlink* aHyperlink) {
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NS_ENSURE_TRUE(MAI_IS_ATK_HYPERLINK(aHyperlink), nullptr);
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MaiHyperlink* maiHyperlink = MAI_ATK_HYPERLINK(aHyperlink)->maiHyperlink;
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NS_ENSURE_TRUE(maiHyperlink != nullptr, nullptr);
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NS_ENSURE_TRUE(maiHyperlink->GetAtkHyperlink() == aHyperlink, nullptr);
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return maiHyperlink;
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}
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GType mai_atk_hyperlink_get_type(void) {
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static GType type = 0;
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if (!type) {
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static const GTypeInfo tinfo = {
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sizeof(MaiAtkHyperlinkClass),
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(GBaseInitFunc) nullptr,
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(GBaseFinalizeFunc) nullptr,
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(GClassInitFunc)classInitCB,
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(GClassFinalizeFunc) nullptr,
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nullptr, /* class data */
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sizeof(MaiAtkHyperlink), /* instance size */
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0, /* nb preallocs */
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(GInstanceInitFunc) nullptr,
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nullptr /* value table */
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};
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type = g_type_register_static(ATK_TYPE_HYPERLINK, "MaiAtkHyperlink", &tinfo,
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GTypeFlags(0));
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}
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return type;
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}
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MaiHyperlink::MaiHyperlink(Accessible* aHyperLink)
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: mHyperlink(aHyperLink), mMaiAtkHyperlink(nullptr) {
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mMaiAtkHyperlink = reinterpret_cast<AtkHyperlink*>(
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g_object_new(mai_atk_hyperlink_get_type(), nullptr));
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NS_ASSERTION(mMaiAtkHyperlink, "OUT OF MEMORY");
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if (!mMaiAtkHyperlink) return;
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MAI_ATK_HYPERLINK(mMaiAtkHyperlink)->maiHyperlink = this;
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}
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MaiHyperlink::~MaiHyperlink() {
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if (mMaiAtkHyperlink) {
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MAI_ATK_HYPERLINK(mMaiAtkHyperlink)->maiHyperlink = nullptr;
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g_object_unref(mMaiAtkHyperlink);
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}
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}
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/* static functions for ATK callbacks */
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void classInitCB(AtkHyperlinkClass* aClass) {
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GObjectClass* gobject_class = G_OBJECT_CLASS(aClass);
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parent_class = g_type_class_peek_parent(aClass);
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aClass->get_uri = getUriCB;
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aClass->get_object = getObjectCB;
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aClass->get_end_index = getEndIndexCB;
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aClass->get_start_index = getStartIndexCB;
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aClass->is_valid = isValidCB;
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aClass->get_n_anchors = getAnchorCountCB;
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gobject_class->finalize = finalizeCB;
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}
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void finalizeCB(GObject* aObj) {
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NS_ASSERTION(MAI_IS_ATK_HYPERLINK(aObj), "Invalid MaiAtkHyperlink");
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if (!MAI_IS_ATK_HYPERLINK(aObj)) return;
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MaiAtkHyperlink* maiAtkHyperlink = MAI_ATK_HYPERLINK(aObj);
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maiAtkHyperlink->maiHyperlink = nullptr;
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/* call parent finalize function */
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if (G_OBJECT_CLASS(parent_class)->finalize) {
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G_OBJECT_CLASS(parent_class)->finalize(aObj);
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}
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}
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gchar* getUriCB(AtkHyperlink* aLink, gint aLinkIndex) {
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MaiHyperlink* maiLink = GetMaiHyperlink(aLink);
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if (!maiLink) {
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return nullptr;
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}
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Accessible* acc = maiLink->Acc();
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if (!acc) {
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return nullptr;
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}
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nsAutoCString cautoStr;
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nsCOMPtr<nsIURI> uri = acc->AnchorURIAt(aLinkIndex);
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if (!uri) return nullptr;
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nsresult rv = uri->GetSpec(cautoStr);
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NS_ENSURE_SUCCESS(rv, nullptr);
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return g_strdup(cautoStr.get());
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}
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AtkObject* getObjectCB(AtkHyperlink* aLink, gint aLinkIndex) {
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MaiHyperlink* maiLink = GetMaiHyperlink(aLink);
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if (!maiLink) {
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return nullptr;
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}
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Accessible* acc = maiLink->Acc();
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if (!acc) {
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return nullptr;
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}
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Accessible* anchor = acc->AnchorAt(aLinkIndex);
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return anchor ? GetWrapperFor(anchor) : nullptr;
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}
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gint getEndIndexCB(AtkHyperlink* aLink) {
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MaiHyperlink* maiLink = GetMaiHyperlink(aLink);
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if (!maiLink) return false;
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return static_cast<gint>(maiLink->Acc()->EndOffset());
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}
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gint getStartIndexCB(AtkHyperlink* aLink) {
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MaiHyperlink* maiLink = GetMaiHyperlink(aLink);
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if (!maiLink) return -1;
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return static_cast<gint>(maiLink->Acc()->StartOffset());
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}
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gboolean isValidCB(AtkHyperlink* aLink) {
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MaiHyperlink* maiLink = GetMaiHyperlink(aLink);
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if (!maiLink) return false;
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Accessible* acc = maiLink->Acc();
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if (!acc) {
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return false;
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}
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return static_cast<gboolean>(acc->IsLinkValid());
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}
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gint getAnchorCountCB(AtkHyperlink* aLink) {
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MaiHyperlink* maiLink = GetMaiHyperlink(aLink);
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if (!maiLink) return -1;
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Accessible* acc = maiLink->Acc();
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if (!acc) {
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return -1;
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}
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return static_cast<gint>(acc->AnchorCount());
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}
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