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
|
/* ATK - The Accessibility Toolkit for GTK+
* Copyright 2001, 2002, 2003 Sun Microsystems Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#include "config.h"
#include "atkhypertext.h"
/**
* SECTION:atkhypertext
* @Short_description: The ATK interface which provides standard
* mechanism for manipulating hyperlinks.
* @Title:AtkHypertext
*
* An interface used for objects which implement linking between
* multiple resource or content locations, or multiple 'markers'
* within a single document. A Hypertext instance is associated with
* one or more Hyperlinks, which are associated with particular
* offsets within the Hypertext's included content. While this
* interface is derived from Text, there is no requirement that
* Hypertext instances have textual content; they may implement Image
* as well, and Hyperlinks need not have non-zero text offsets.
*/
enum {
LINK_SELECTED,
LAST_SIGNAL
};
static void atk_hypertext_base_init (AtkHypertextIface *class);
static guint atk_hypertext_signals[LAST_SIGNAL] = { 0 };
GType
atk_hypertext_get_type (void)
{
static GType type = 0;
if (!type) {
static const GTypeInfo tinfo =
{
sizeof (AtkHypertextIface),
(GBaseInitFunc) atk_hypertext_base_init,
(GBaseFinalizeFunc) NULL,
};
type = g_type_register_static (G_TYPE_INTERFACE, "AtkHypertext", &tinfo, 0);
}
return type;
}
static void
atk_hypertext_base_init (AtkHypertextIface *class)
{
static gboolean initialized = FALSE;
if (!initialized)
{
/**
* AtkHypertext::link-selected:
* @atkhypertext: the object which received the signal.
* @arg1: the index of the hyperlink which is selected
*
* The "link-selected" signal is emitted by an AtkHyperText
* object when one of the hyperlinks associated with the object
* is selected.
*/
atk_hypertext_signals[LINK_SELECTED] =
g_signal_new ("link_selected",
ATK_TYPE_HYPERTEXT,
G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (AtkHypertextIface, link_selected),
(GSignalAccumulator) NULL, NULL,
g_cclosure_marshal_VOID__INT,
G_TYPE_NONE,
1, G_TYPE_INT);
initialized = TRUE;
}
}
/**
* atk_hypertext_get_link:
* @hypertext: an #AtkHypertext
* @link_index: an integer specifying the desired link
*
* Gets the link in this hypertext document at index
* @link_index
*
* Returns: (transfer none): the link in this hypertext document at
* index @link_index
**/
AtkHyperlink*
atk_hypertext_get_link (AtkHypertext *hypertext,
gint link_index)
{
AtkHypertextIface *iface;
g_return_val_if_fail (ATK_IS_HYPERTEXT (hypertext), NULL);
if (link_index < 0)
return NULL;
iface = ATK_HYPERTEXT_GET_IFACE (hypertext);
if (iface->get_link)
return (*(iface->get_link)) (hypertext, link_index);
else
return NULL;
}
/**
* atk_hypertext_get_n_links:
* @hypertext: an #AtkHypertext
*
* Gets the number of links within this hypertext document.
*
* Returns: the number of links within this hypertext document
**/
gint
atk_hypertext_get_n_links (AtkHypertext *hypertext)
{
AtkHypertextIface *iface;
g_return_val_if_fail (ATK_IS_HYPERTEXT (hypertext), 0);
iface = ATK_HYPERTEXT_GET_IFACE (hypertext);
if (iface->get_n_links)
return (*(iface->get_n_links)) (hypertext);
else
return 0;
}
/**
* atk_hypertext_get_link_index:
* @hypertext: an #AtkHypertext
* @char_index: a character index
*
* Gets the index into the array of hyperlinks that is associated with
* the character specified by @char_index.
*
* Returns: an index into the array of hyperlinks in @hypertext,
* or -1 if there is no hyperlink associated with this character.
**/
gint
atk_hypertext_get_link_index (AtkHypertext *hypertext,
gint char_index)
{
AtkHypertextIface *iface;
g_return_val_if_fail (ATK_IS_HYPERTEXT (hypertext), -1);
if (char_index < 0)
return -1;
iface = ATK_HYPERTEXT_GET_IFACE (hypertext);
if (iface->get_link_index)
return (*(iface->get_link_index)) (hypertext, char_index);
else
return -1;
}
|
