aboutsummaryrefslogtreecommitdiffstats
path: root/widgets/table/gal-a11y-e-tree.c
blob: d474f96af5ee49bcaed39e3485eaca9f56885186 (plain) (blame)
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
/*
 * This program 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) version 3.
 *
 * This program 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 the program; if not, see <http://www.gnu.org/licenses/>
 *
 *
 * Authors:
 *      Yuedong Du <yuedong.du@sun.com>
 *
 * Copyright (C) 1999-2008 Novell, Inc. (www.novell.com)
 *
 */

#include <config.h>

#include "a11y/gal-a11y-util.h"
#include "table/e-table-item.h"
#include "table/e-tree.h"

#include "gal-a11y-e-table-item.h"
#include "gal-a11y-e-tree.h"
#include "gal-a11y-e-tree-factory.h"

#define CS_CLASS(a11y) (G_TYPE_INSTANCE_GET_CLASS ((a11y), C_TYPE_STREAM, GalA11yETreeClass))
static AtkObjectClass *parent_class;
static GType parent_type;
static gint priv_offset;
#define GET_PRIVATE(object) ((GalA11yETreePrivate *) (((gchar *) object) + priv_offset))
#define PARENT_TYPE (parent_type)

struct _GalA11yETreePrivate {
    AtkObject *child_item;
};

/* Static functions */

static void
init_child_item (GalA11yETree *a11y)
{
    GalA11yETreePrivate *priv = GET_PRIVATE (a11y);
    ETree *tree;
    ETableItem * eti;

    tree = E_TREE (gtk_accessible_get_widget (GTK_ACCESSIBLE (a11y)));
    g_return_if_fail (tree);

    eti = e_tree_get_item (tree);
    if (priv->child_item == NULL) {
        priv->child_item = atk_gobject_accessible_for_object (G_OBJECT (eti));
    }
}

static AtkObject*
et_ref_accessible_at_point  (AtkComponent *component,
                 gint x,
                 gint y,
                 AtkCoordType coord_type)
{
    GalA11yETree *a11y = GAL_A11Y_E_TREE (component);
    init_child_item (a11y);
    return GET_PRIVATE (a11y)->child_item;
}

static gint
et_get_n_children (AtkObject *accessible)
{
    return 1;
}

static AtkObject*
et_ref_child (AtkObject *accessible,
          gint i)
{
    GalA11yETree *a11y = GAL_A11Y_E_TREE (accessible);
    if (i != 0)
        return NULL;
    init_child_item (a11y);
    g_object_ref (GET_PRIVATE (a11y)->child_item);
    return GET_PRIVATE (a11y)->child_item;
}

static AtkLayer
et_get_layer (AtkComponent *component)
{
    return ATK_LAYER_WIDGET;
}

static void
et_class_init (GalA11yETreeClass *class)
{
    AtkObjectClass *atk_object_class = ATK_OBJECT_CLASS (class);

    parent_class                              = g_type_class_ref (PARENT_TYPE);

    atk_object_class->get_n_children          = et_get_n_children;
    atk_object_class->ref_child               = et_ref_child;
}

static void
et_atk_component_iface_init (AtkComponentIface *iface)
{
    iface->ref_accessible_at_point = et_ref_accessible_at_point;
    iface->get_layer = et_get_layer;
}

static void
et_init (GalA11yETree *a11y)
{
    GalA11yETreePrivate *priv;

    priv = GET_PRIVATE (a11y);

    priv->child_item = NULL;
}

/**
 * gal_a11y_e_tree_get_type:
 * @void:
 *
 * Registers the &GalA11yETree class if necessary, and returns the type ID
 * associated to it.
 *
 * Return value: The type ID of the &GalA11yETree class.
 **/
GType
gal_a11y_e_tree_get_type (void)
{
    static GType type = 0;

    if (!type) {
        AtkObjectFactory *factory;

        GTypeInfo info = {
            sizeof (GalA11yETreeClass),
            (GBaseInitFunc) NULL,
            (GBaseFinalizeFunc) NULL,
            (GClassInitFunc) et_class_init,
            (GClassFinalizeFunc) NULL,
            NULL, /* class_data */
            sizeof (GalA11yETree),
            0,
            (GInstanceInitFunc) et_init,
            NULL /* value_tree */
        };

        static const GInterfaceInfo atk_component_info = {
            (GInterfaceInitFunc) et_atk_component_iface_init,
            (GInterfaceFinalizeFunc) NULL,
            NULL
        };

        factory = atk_registry_get_factory (atk_get_default_registry (), GTK_TYPE_WIDGET);
        parent_type = atk_object_factory_get_accessible_type (factory);

        type = gal_a11y_type_register_static_with_private (PARENT_TYPE, "GalA11yETree", &info, 0,
                                   sizeof (GalA11yETreePrivate), &priv_offset);
        g_type_add_interface_static (type, ATK_TYPE_COMPONENT, &atk_component_info);
    }

    return type;
}

AtkObject *
gal_a11y_e_tree_new (GObject *widget)
{
    GalA11yETree *a11y;

    a11y = g_object_new (gal_a11y_e_tree_get_type (), NULL);

    /* FIXME No way to do this in GTK 3. */
    /*GTK_ACCESSIBLE (a11y)->widget = GTK_WIDGET (widget);*/

    return ATK_OBJECT (a11y);
}

void
gal_a11y_e_tree_init (void)
{
    if (atk_get_root ())
        atk_registry_set_factory_type (atk_get_default_registry (),
                    E_TYPE_TREE,
                    gal_a11y_e_tree_factory_get_type ());

}