Robin Gareus
ad51c7c2ba
This is intended mainly for GNU/Linux distros who will remove GTK2 support in the near future.
424 lines
12 KiB
C
424 lines
12 KiB
C
/* ATK - Accessibility Toolkit
|
|
* 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 Lesser 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
|
|
* Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser 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 "atkhyperlink.h"
|
|
#include <glib/gi18n-lib.h>
|
|
|
|
/**
|
|
* SECTION:atkhyperlink
|
|
* @Short_description: An ATK object which encapsulates a link or set
|
|
* of links in a hypertext document.
|
|
* @Title:AtkHyperlink
|
|
*
|
|
* An ATK object which encapsulates a link or set of links (for
|
|
* instance in the case of client-side image maps) in a hypertext
|
|
* document. It may implement the AtkAction interface. AtkHyperlink
|
|
* may also be used to refer to inline embedded content, since it
|
|
* allows specification of a start and end offset within the host
|
|
* AtkHypertext object.
|
|
*/
|
|
|
|
enum
|
|
{
|
|
LINK_ACTIVATED,
|
|
|
|
LAST_SIGNAL
|
|
};
|
|
|
|
enum
|
|
{
|
|
PROP_0, /* gobject convention */
|
|
|
|
PROP_SELECTED_LINK,
|
|
PROP_NUMBER_ANCHORS,
|
|
PROP_END_INDEX,
|
|
PROP_START_INDEX,
|
|
PROP_LAST
|
|
};
|
|
|
|
static void atk_hyperlink_class_init (AtkHyperlinkClass *klass);
|
|
static void atk_hyperlink_init (AtkHyperlink *link,
|
|
AtkHyperlinkClass *klass);
|
|
|
|
static void atk_hyperlink_real_get_property (GObject *object,
|
|
guint prop_id,
|
|
GValue *value,
|
|
GParamSpec *pspec);
|
|
|
|
static void atk_hyperlink_action_iface_init (AtkActionIface *iface);
|
|
|
|
static guint atk_hyperlink_signals[LAST_SIGNAL] = { 0, };
|
|
|
|
static gpointer parent_class = NULL;
|
|
|
|
GType
|
|
atk_hyperlink_get_type (void)
|
|
{
|
|
static GType type = 0;
|
|
|
|
if (!type)
|
|
{
|
|
static const GTypeInfo typeInfo =
|
|
{
|
|
sizeof (AtkHyperlinkClass),
|
|
(GBaseInitFunc) NULL,
|
|
(GBaseFinalizeFunc) NULL,
|
|
(GClassInitFunc) atk_hyperlink_class_init,
|
|
(GClassFinalizeFunc) NULL,
|
|
NULL,
|
|
sizeof (AtkHyperlink),
|
|
0,
|
|
(GInstanceInitFunc) atk_hyperlink_init,
|
|
} ;
|
|
|
|
static const GInterfaceInfo action_info =
|
|
{
|
|
(GInterfaceInitFunc) atk_hyperlink_action_iface_init,
|
|
(GInterfaceFinalizeFunc) NULL,
|
|
NULL
|
|
};
|
|
|
|
type = g_type_register_static (G_TYPE_OBJECT, "AtkHyperlink", &typeInfo, 0) ;
|
|
g_type_add_interface_static (type, ATK_TYPE_ACTION, &action_info);
|
|
}
|
|
return type;
|
|
}
|
|
|
|
static void
|
|
atk_hyperlink_class_init (AtkHyperlinkClass *klass)
|
|
{
|
|
GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
|
|
|
|
parent_class = g_type_class_peek_parent (klass);
|
|
|
|
gobject_class->get_property = atk_hyperlink_real_get_property;
|
|
|
|
klass->link_activated = NULL;
|
|
|
|
/**
|
|
* AtkHyperlink:selected-link:
|
|
*
|
|
* Selected link
|
|
*
|
|
* Deprecated: Since 1.8. This property is deprecated since ATK
|
|
* version 1.8. Please use ATK_STATE_FOCUSABLE for all links, and
|
|
* ATK_STATE_FOCUSED for focused links.
|
|
*
|
|
*/
|
|
g_object_class_install_property (gobject_class,
|
|
PROP_SELECTED_LINK,
|
|
g_param_spec_boolean ("selected-link",
|
|
_("Selected Link"),
|
|
_("Specifies whether the AtkHyperlink object is selected"),
|
|
FALSE,
|
|
G_PARAM_READABLE));
|
|
g_object_class_install_property (gobject_class,
|
|
PROP_NUMBER_ANCHORS,
|
|
g_param_spec_int ("number-of-anchors",
|
|
_("Number of Anchors"),
|
|
_("The number of anchors associated with the AtkHyperlink object"),
|
|
0,
|
|
G_MAXINT,
|
|
0,
|
|
G_PARAM_READABLE));
|
|
g_object_class_install_property (gobject_class,
|
|
PROP_END_INDEX,
|
|
g_param_spec_int ("end-index",
|
|
_("End index"),
|
|
_("The end index of the AtkHyperlink object"),
|
|
0,
|
|
G_MAXINT,
|
|
0,
|
|
G_PARAM_READABLE));
|
|
g_object_class_install_property (gobject_class,
|
|
PROP_START_INDEX,
|
|
g_param_spec_int ("start-index",
|
|
_("Start index"),
|
|
_("The start index of the AtkHyperlink object"),
|
|
0,
|
|
G_MAXINT,
|
|
0,
|
|
G_PARAM_READABLE));
|
|
|
|
/**
|
|
* AtkHyperlink::link-activated:
|
|
* @atkhyperlink: the object which received the signal.
|
|
*
|
|
* The signal link-activated is emitted when a link is activated.
|
|
*/
|
|
atk_hyperlink_signals[LINK_ACTIVATED] =
|
|
g_signal_new ("link_activated",
|
|
G_TYPE_FROM_CLASS (klass),
|
|
G_SIGNAL_RUN_LAST,
|
|
G_STRUCT_OFFSET (AtkHyperlinkClass, link_activated),
|
|
NULL, NULL,
|
|
g_cclosure_marshal_VOID__VOID,
|
|
G_TYPE_NONE,
|
|
0);
|
|
|
|
}
|
|
|
|
static void
|
|
atk_hyperlink_init (AtkHyperlink *link,
|
|
AtkHyperlinkClass *klass)
|
|
{
|
|
}
|
|
|
|
static void
|
|
atk_hyperlink_real_get_property (GObject *object,
|
|
guint prop_id,
|
|
GValue *value,
|
|
GParamSpec *pspec)
|
|
{
|
|
AtkHyperlink* link;
|
|
|
|
link = ATK_HYPERLINK (object);
|
|
|
|
switch (prop_id)
|
|
{
|
|
case PROP_SELECTED_LINK:
|
|
// This property is deprecated, also the method to get the value
|
|
g_value_set_boolean (value, FALSE);
|
|
break;
|
|
case PROP_NUMBER_ANCHORS:
|
|
g_value_set_int (value, atk_hyperlink_get_n_anchors (link));
|
|
break;
|
|
case PROP_END_INDEX:
|
|
g_value_set_int (value, atk_hyperlink_get_end_index (link));
|
|
break;
|
|
case PROP_START_INDEX:
|
|
g_value_set_int (value, atk_hyperlink_get_start_index (link));
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* atk_hyperlink_get_uri:
|
|
* @link_: an #AtkHyperlink
|
|
* @i: a (zero-index) integer specifying the desired anchor
|
|
*
|
|
* Get a the URI associated with the anchor specified
|
|
* by @i of @link_.
|
|
*
|
|
* Multiple anchors are primarily used by client-side image maps.
|
|
*
|
|
* Returns: a string specifying the URI
|
|
**/
|
|
gchar*
|
|
atk_hyperlink_get_uri (AtkHyperlink *link,
|
|
gint i)
|
|
{
|
|
AtkHyperlinkClass *klass;
|
|
|
|
g_return_val_if_fail (ATK_IS_HYPERLINK (link), NULL);
|
|
|
|
klass = ATK_HYPERLINK_GET_CLASS (link);
|
|
if (klass->get_uri)
|
|
return (klass->get_uri) (link, i);
|
|
else
|
|
return NULL;
|
|
}
|
|
|
|
/**
|
|
* atk_hyperlink_get_object:
|
|
* @link_: an #AtkHyperlink
|
|
* @i: a (zero-index) integer specifying the desired anchor
|
|
*
|
|
* Returns the item associated with this hyperlinks nth anchor.
|
|
* For instance, the returned #AtkObject will implement #AtkText
|
|
* if @link_ is a text hyperlink, #AtkImage if @link_ is an image
|
|
* hyperlink etc.
|
|
*
|
|
* Multiple anchors are primarily used by client-side image maps.
|
|
*
|
|
* Returns: (transfer none): an #AtkObject associated with this hyperlinks
|
|
* i-th anchor
|
|
**/
|
|
AtkObject*
|
|
atk_hyperlink_get_object (AtkHyperlink *link,
|
|
gint i)
|
|
{
|
|
AtkHyperlinkClass *klass;
|
|
|
|
g_return_val_if_fail (ATK_IS_HYPERLINK (link), NULL);
|
|
|
|
klass = ATK_HYPERLINK_GET_CLASS (link);
|
|
if (klass->get_object)
|
|
return (klass->get_object) (link, i);
|
|
else
|
|
return NULL;
|
|
}
|
|
|
|
/**
|
|
* atk_hyperlink_get_end_index:
|
|
* @link_: an #AtkHyperlink
|
|
*
|
|
* Gets the index with the hypertext document at which this link ends.
|
|
*
|
|
* Returns: the index with the hypertext document at which this link ends
|
|
**/
|
|
gint
|
|
atk_hyperlink_get_end_index (AtkHyperlink *link)
|
|
{
|
|
AtkHyperlinkClass *klass;
|
|
|
|
g_return_val_if_fail (ATK_IS_HYPERLINK (link), 0);
|
|
|
|
klass = ATK_HYPERLINK_GET_CLASS (link);
|
|
if (klass->get_end_index)
|
|
return (klass->get_end_index) (link);
|
|
else
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* atk_hyperlink_get_start_index:
|
|
* @link_: an #AtkHyperlink
|
|
*
|
|
* Gets the index with the hypertext document at which this link begins.
|
|
*
|
|
* Returns: the index with the hypertext document at which this link begins
|
|
**/
|
|
gint
|
|
atk_hyperlink_get_start_index (AtkHyperlink *link)
|
|
{
|
|
AtkHyperlinkClass *klass;
|
|
|
|
g_return_val_if_fail (ATK_IS_HYPERLINK (link), 0);
|
|
|
|
klass = ATK_HYPERLINK_GET_CLASS (link);
|
|
if (klass->get_start_index)
|
|
return (klass->get_start_index) (link);
|
|
else
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* atk_hyperlink_is_valid:
|
|
* @link_: an #AtkHyperlink
|
|
*
|
|
* Since the document that a link is associated with may have changed
|
|
* this method returns %TRUE if the link is still valid (with
|
|
* respect to the document it references) and %FALSE otherwise.
|
|
*
|
|
* Returns: whether or not this link is still valid
|
|
**/
|
|
gboolean
|
|
atk_hyperlink_is_valid (AtkHyperlink *link)
|
|
{
|
|
AtkHyperlinkClass *klass;
|
|
|
|
g_return_val_if_fail (ATK_IS_HYPERLINK (link), FALSE);
|
|
|
|
klass = ATK_HYPERLINK_GET_CLASS (link);
|
|
if (klass->is_valid)
|
|
return (klass->is_valid) (link);
|
|
else
|
|
return FALSE;
|
|
}
|
|
|
|
/**
|
|
* atk_hyperlink_is_inline:
|
|
* @link_: an #AtkHyperlink
|
|
*
|
|
* Indicates whether the link currently displays some or all of its
|
|
* content inline. Ordinary HTML links will usually return
|
|
* %FALSE, but an inline <src> HTML element will return
|
|
* %TRUE.
|
|
*
|
|
* Returns: whether or not this link displays its content inline.
|
|
*
|
|
**/
|
|
gboolean
|
|
atk_hyperlink_is_inline (AtkHyperlink *link)
|
|
{
|
|
AtkHyperlinkClass *klass;
|
|
|
|
g_return_val_if_fail (ATK_IS_HYPERLINK (link), FALSE);
|
|
|
|
klass = ATK_HYPERLINK_GET_CLASS (link);
|
|
if (klass->link_state)
|
|
return (klass->link_state (link) & ATK_HYPERLINK_IS_INLINE);
|
|
else
|
|
return FALSE;
|
|
}
|
|
|
|
/**
|
|
* atk_hyperlink_get_n_anchors:
|
|
* @link_: an #AtkHyperlink
|
|
*
|
|
* Gets the number of anchors associated with this hyperlink.
|
|
*
|
|
* Returns: the number of anchors associated with this hyperlink
|
|
**/
|
|
gint
|
|
atk_hyperlink_get_n_anchors (AtkHyperlink *link)
|
|
{
|
|
AtkHyperlinkClass *klass;
|
|
|
|
g_return_val_if_fail (ATK_IS_HYPERLINK (link), 0);
|
|
|
|
klass = ATK_HYPERLINK_GET_CLASS (link);
|
|
if (klass->get_n_anchors)
|
|
return (klass->get_n_anchors) (link);
|
|
else
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* atk_hyperlink_is_selected_link:
|
|
* @link_: an #AtkHyperlink
|
|
*
|
|
* Determines whether this AtkHyperlink is selected
|
|
*
|
|
* Since: 1.4
|
|
*
|
|
* Deprecated: This method is deprecated since ATK version 1.8.
|
|
* Please use ATK_STATE_FOCUSABLE for all links, and ATK_STATE_FOCUSED
|
|
* for focused links.
|
|
*
|
|
* Returns: True if the AtkHyperlink is selected, False otherwise
|
|
**/
|
|
gboolean
|
|
atk_hyperlink_is_selected_link (AtkHyperlink *link)
|
|
{
|
|
AtkHyperlinkClass *klass;
|
|
|
|
g_return_val_if_fail (ATK_IS_HYPERLINK (link), FALSE);
|
|
|
|
klass = ATK_HYPERLINK_GET_CLASS (link);
|
|
if (klass->is_selected_link)
|
|
return (klass->is_selected_link) (link);
|
|
else
|
|
return FALSE;
|
|
}
|
|
|
|
static void atk_hyperlink_action_iface_init (AtkActionIface *iface)
|
|
{
|
|
/*
|
|
* We do nothing here
|
|
*
|
|
* When we come to derive a class from AtkHyperlink we will provide an
|
|
* implementation of the AtkAction interface.
|
|
*/
|
|
}
|