1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
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());
}
|
