aboutsummaryrefslogtreecommitdiffstats
path: root/e-util/e-menu-tool-button.c
blob: cffadd0f0860770e18d4c6f0242e21919e5c595d (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
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
/*
 * e-menu-tool-button.c
 *
 * 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.
 *
 * 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 General Public License
 * for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this program; if not, see <http://www.gnu.org/licenses/>.
 *
 *
 * Copyright (C) 1999-2008 Novell, Inc. (www.novell.com)
 *
 */

#ifdef HAVE_CONFIG_H
#include <config.h>
#endif

#include "e-menu-tool-button.h"
#include "e-misc-utils.h"

#define E_MENU_TOOL_BUTTON_GET_PRIVATE(obj) \
    (G_TYPE_INSTANCE_GET_PRIVATE \
    ((obj), E_TYPE_MENU_TOOL_BUTTON, EMenuToolButtonPrivate))

struct _EMenuToolButtonPrivate {
    gchar *prefer_item;
};

enum {
    PROP_0,
    PROP_PREFER_ITEM
};

G_DEFINE_TYPE (
    EMenuToolButton,
    e_menu_tool_button,
    GTK_TYPE_MENU_TOOL_BUTTON)

static GtkWidget *
menu_tool_button_clone_image (GtkWidget *source)
{
    GtkIconSize size;
    GtkImageType image_type;
    const gchar *icon_name;

    /* XXX This isn't general purpose because it requires that the
     *     source image be using a named icon.  Somewhat surprised
     *     GTK+ doesn't offer something like this. */
    image_type = gtk_image_get_storage_type (GTK_IMAGE (source));
    g_return_val_if_fail (image_type == GTK_IMAGE_ICON_NAME, NULL);
    gtk_image_get_icon_name (GTK_IMAGE (source), &icon_name, &size);

    return gtk_image_new_from_icon_name (icon_name, size);
}

static GtkMenuItem *
menu_tool_button_get_prefer_menu_item (GtkMenuToolButton *menu_tool_button)
{
    GtkWidget *menu;
    GtkMenuItem *item = NULL;
    GList *children;
    const gchar *prefer_item;

    menu = gtk_menu_tool_button_get_menu (menu_tool_button);
    if (!GTK_IS_MENU (menu))
        return NULL;

    children = gtk_container_get_children (GTK_CONTAINER (menu));
    if (children == NULL)
        return NULL;

    prefer_item = e_menu_tool_button_get_prefer_item (
        E_MENU_TOOL_BUTTON (menu_tool_button));
    if (prefer_item != NULL && *prefer_item != '\0') {
        GtkAction *action;
        GList *link;

        for (link = children; link != NULL; link = g_list_next (link)) {
            GtkWidget *child;
            const gchar *name;

            child = GTK_WIDGET (link->data);

            if (!GTK_IS_MENU_ITEM (child))
                continue;

            action = gtk_activatable_get_related_action (
                GTK_ACTIVATABLE (child));

            if (action != NULL)
                name = gtk_action_get_name (action);
            else
                name = gtk_widget_get_name (child);

            if (g_strcmp0 (name, prefer_item) == 0) {
                item = GTK_MENU_ITEM (child);
                break;
            }
        }
    }

    if (item == NULL)
        item = GTK_MENU_ITEM (children->data);

    g_list_free (children);

    return item;
}

static void
menu_tool_button_update_button (GtkToolButton *tool_button)
{
    GtkMenuItem *menu_item;
    GtkMenuToolButton *menu_tool_button;
    GtkImageMenuItem *image_menu_item;
    GtkAction *action;
    GtkWidget *image;
    gchar *tooltip = NULL;

    menu_tool_button = GTK_MENU_TOOL_BUTTON (tool_button);
    menu_item = menu_tool_button_get_prefer_menu_item (menu_tool_button);
    if (!GTK_IS_IMAGE_MENU_ITEM (menu_item))
        return;

    image_menu_item = GTK_IMAGE_MENU_ITEM (menu_item);
    image = gtk_image_menu_item_get_image (image_menu_item);
    if (!GTK_IS_IMAGE (image))
        return;

    image = menu_tool_button_clone_image (image);
    gtk_tool_button_set_icon_widget (tool_button, image);
    gtk_widget_show (image);

    /* If the menu item is a proxy for a GtkAction, extract
     * the action's tooltip and use it as our own tooltip. */
    action = gtk_activatable_get_related_action (
        GTK_ACTIVATABLE (menu_item));
    if (action != NULL)
        g_object_get (action, "tooltip", &tooltip, NULL);
    gtk_widget_set_tooltip_text (GTK_WIDGET (tool_button), tooltip);
    g_free (tooltip);
}

static void
menu_tool_button_clicked (GtkToolButton *tool_button)
{
    GtkMenuItem *menu_item;
    GtkMenuToolButton *menu_tool_button;

    menu_tool_button = GTK_MENU_TOOL_BUTTON (tool_button);
    menu_item = menu_tool_button_get_prefer_menu_item (menu_tool_button);

    if (GTK_IS_MENU_ITEM (menu_item))
        gtk_menu_item_activate (menu_item);
}

static void
menu_tool_button_set_property (GObject *object,
                               guint property_id,
                               const GValue *value,
                               GParamSpec *pspec)
{
    switch (property_id) {
        case PROP_PREFER_ITEM:
            e_menu_tool_button_set_prefer_item (
                E_MENU_TOOL_BUTTON (object),
                g_value_get_string (value));
            return;
    }

    G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
}

static void
menu_tool_button_get_property (GObject *object,
                               guint property_id,
                               GValue *value,
                               GParamSpec *pspec)
{
    switch (property_id) {
        case PROP_PREFER_ITEM:
            g_value_set_string (
                value, e_menu_tool_button_get_prefer_item (
                E_MENU_TOOL_BUTTON (object)));
            return;
    }

    G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
}

static void
menu_tool_button_finalize (GObject *object)
{
    EMenuToolButtonPrivate *priv;

    priv = E_MENU_TOOL_BUTTON_GET_PRIVATE (object);

    g_free (priv->prefer_item);

    /* Chain up to parent's finalize() method. */
    G_OBJECT_CLASS (e_menu_tool_button_parent_class)->finalize (object);
}

static void
e_menu_tool_button_class_init (EMenuToolButtonClass *class)
{
    GObjectClass *object_class;
    GtkToolButtonClass *tool_button_class;

    g_type_class_add_private (class, sizeof (EMenuToolButtonPrivate));

    object_class = G_OBJECT_CLASS (class);
    object_class->set_property = menu_tool_button_set_property;
    object_class->get_property = menu_tool_button_get_property;
    object_class->finalize = menu_tool_button_finalize;

    tool_button_class = GTK_TOOL_BUTTON_CLASS (class);
    tool_button_class->clicked = menu_tool_button_clicked;

    g_object_class_install_property (
        object_class,
        PROP_PREFER_ITEM,
        g_param_spec_string (
            "prefer-item",
            "Prefer Item",
            "Name of an item to show instead of the first",
            NULL,
            G_PARAM_READWRITE));
}

static void
e_menu_tool_button_init (EMenuToolButton *button)
{
    button->priv = E_MENU_TOOL_BUTTON_GET_PRIVATE (button);

    button->priv->prefer_item = NULL;

    e_signal_connect_notify (
        button, "notify::menu",
        G_CALLBACK (menu_tool_button_update_button), NULL);
}

GtkToolItem *
e_menu_tool_button_new (const gchar *label)
{
    return g_object_new (E_TYPE_MENU_TOOL_BUTTON, "label", label, NULL);
}

const gchar *
e_menu_tool_button_get_prefer_item (EMenuToolButton *button)
{
    g_return_val_if_fail (E_IS_MENU_TOOL_BUTTON (button), NULL);

    return button->priv->prefer_item;
}

void
e_menu_tool_button_set_prefer_item (EMenuToolButton *button,
                                    const gchar *prefer_item)
{
    g_return_if_fail (E_IS_MENU_TOOL_BUTTON (button));

    if (g_strcmp0 (button->priv->prefer_item, prefer_item) == 0)
        return;

    g_free (button->priv->prefer_item);
    button->priv->prefer_item = g_strdup (prefer_item);

    g_object_notify (G_OBJECT (button), "prefer-item");
}