1 /* ATK - The Accessibility Toolkit for GTK+
2 * Copyright 2001, 2002, 2003 Sun Microsystems Inc.
4 * This library is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Library General Public
6 * License as published by the Free Software Foundation; either
7 * version 2 of the License, or (at your option) any later version.
9 * This library is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Library General Public License for more details.
14 * You should have received a copy of the GNU Library General Public
15 * License along with this library; if not, see <http://www.gnu.org/licenses/>.
18 #include "atkhypertext.h"
21 * SECTION:atkhypertext
22 * @Short_description: The ATK interface which provides standard
23 * mechanism for manipulating hyperlinks.
26 * An interface used for objects which implement linking between
27 * multiple resource or content locations, or multiple 'markers'
28 * within a single document. A Hypertext instance is associated with
29 * one or more Hyperlinks, which are associated with particular
30 * offsets within the Hypertext's included content. While this
31 * interface is derived from Text, there is no requirement that
32 * Hypertext instances have textual content; they may implement Image
33 * as well, and Hyperlinks need not have non-zero text offsets.
41 static void atk_hypertext_base_init (AtkHypertextIface *class);
43 static guint atk_hypertext_signals[LAST_SIGNAL] = { 0 };
47 atk_hypertext_get_type (void)
49 static GType type = 0;
52 static const GTypeInfo tinfo =
54 sizeof (AtkHypertextIface),
55 (GBaseInitFunc) atk_hypertext_base_init,
56 (GBaseFinalizeFunc) NULL,
60 type = g_type_register_static (G_TYPE_INTERFACE, "AtkHypertext", &tinfo, 0);
67 atk_hypertext_base_init (AtkHypertextIface *class)
69 static gboolean initialized = FALSE;
74 * AtkHypertext::link-selected:
75 * @atkhypertext: the object which received the signal.
76 * @arg1: the index of the hyperlink which is selected
78 * The "link-selected" signal is emitted by an AtkHyperText
79 * object when one of the hyperlinks associated with the object
82 atk_hypertext_signals[LINK_SELECTED] =
83 g_signal_new ("link_selected",
86 G_STRUCT_OFFSET (AtkHypertextIface, link_selected),
87 (GSignalAccumulator) NULL, NULL,
88 g_cclosure_marshal_VOID__INT,
97 * atk_hypertext_get_link:
98 * @hypertext: an #AtkHypertext
99 * @link_index: an integer specifying the desired link
101 * Gets the link in this hypertext document at index
104 * Returns: (transfer none): the link in this hypertext document at
108 atk_hypertext_get_link (AtkHypertext *hypertext,
111 AtkHypertextIface *iface;
113 g_return_val_if_fail (ATK_IS_HYPERTEXT (hypertext), NULL);
118 iface = ATK_HYPERTEXT_GET_IFACE (hypertext);
121 return (*(iface->get_link)) (hypertext, link_index);
127 * atk_hypertext_get_n_links:
128 * @hypertext: an #AtkHypertext
130 * Gets the number of links within this hypertext document.
132 * Returns: the number of links within this hypertext document
135 atk_hypertext_get_n_links (AtkHypertext *hypertext)
137 AtkHypertextIface *iface;
139 g_return_val_if_fail (ATK_IS_HYPERTEXT (hypertext), 0);
141 iface = ATK_HYPERTEXT_GET_IFACE (hypertext);
143 if (iface->get_n_links)
144 return (*(iface->get_n_links)) (hypertext);
150 * atk_hypertext_get_link_index:
151 * @hypertext: an #AtkHypertext
152 * @char_index: a character index
154 * Gets the index into the array of hyperlinks that is associated with
155 * the character specified by @char_index.
157 * Returns: an index into the array of hyperlinks in @hypertext,
158 * or -1 if there is no hyperlink associated with this character.
161 atk_hypertext_get_link_index (AtkHypertext *hypertext,
164 AtkHypertextIface *iface;
166 g_return_val_if_fail (ATK_IS_HYPERTEXT (hypertext), -1);
171 iface = ATK_HYPERTEXT_GET_IFACE (hypertext);
173 if (iface->get_link_index)
174 return (*(iface->get_link_index)) (hypertext, char_index);