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
|
/*
* Copyright © 2017 Christian Persch
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANMENUILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "config.h"
#include "terminal-menu-button.h"
#include "terminal-intl.h"
#include "terminal-libgsystem.h"
/* All this just because GtkToggleButton:toggled is RUN_FIRST (and the
* notify::active comes after the toggled signal). :-(
*/
enum
{
UPDATE_MENU,
LAST_SIGNAL
};
static guint signals[LAST_SIGNAL];
static void popup_menu_selection_done_cb (GtkMenu *menu,
GtkMenuButton *button);
/* The menu button sets itself insensitive when it has no menu.
* Work around this by using an empty menu.
*/
static void
set_empty_menu (GtkMenuButton *button)
{
gs_unref_object GMenu *menu = g_menu_new ();
gtk_menu_button_set_menu_model (button, G_MENU_MODEL (menu));
}
static void
disconnect_popup_menu (GtkMenuButton *button)
{
GtkMenu *popup_menu = gtk_menu_button_get_popup (button);
if (popup_menu)
g_signal_handlers_disconnect_by_func
(popup_menu, G_CALLBACK (popup_menu_selection_done_cb), button);
}
static void
popup_menu_selection_done_cb (GtkMenu *menu,
GtkMenuButton *button)
{
disconnect_popup_menu (button);
set_empty_menu (button);
}
/* Class implementation */
G_DEFINE_TYPE (TerminalMenuButton, terminal_menu_button, GTK_TYPE_MENU_BUTTON);
static void
terminal_menu_button_init (TerminalMenuButton *button_)
{
GtkButton *button = GTK_BUTTON (button_);
GtkMenuButton *menu_button = GTK_MENU_BUTTON (button_);
gtk_button_set_relief (button, GTK_RELIEF_NONE);
gtk_button_set_focus_on_click (button, FALSE);
gtk_menu_button_set_use_popover (menu_button, FALSE);
set_empty_menu (menu_button);
}
static void
terminal_menu_button_toggled (GtkToggleButton *button)
{
gboolean active = gtk_toggle_button_get_active (button); /* this is already the new state */
/* On activate, update the menu */
if (active)
g_signal_emit (button, signals[UPDATE_MENU], 0);
GTK_TOGGLE_BUTTON_CLASS (terminal_menu_button_parent_class)->toggled (button);
}
static void
terminal_menu_button_update_menu (TerminalMenuButton *button)
{
GtkMenuButton *gtk_button = GTK_MENU_BUTTON (button);
GtkMenu *popup_menu = gtk_menu_button_get_popup (gtk_button);
if (popup_menu)
g_signal_connect (popup_menu, "selection-done",
G_CALLBACK (popup_menu_selection_done_cb), button);
}
static void
terminal_menu_button_dispose (GObject *object)
{
disconnect_popup_menu (GTK_MENU_BUTTON (object));
G_OBJECT_CLASS (terminal_menu_button_parent_class)->dispose (object);
}
static void
terminal_menu_button_class_init (TerminalMenuButtonClass *klass)
{
klass->update_menu = terminal_menu_button_update_menu;
GObjectClass *object_class = G_OBJECT_CLASS (klass);
object_class->dispose = terminal_menu_button_dispose;
GtkToggleButtonClass *toggle_button_class = GTK_TOGGLE_BUTTON_CLASS (klass);
toggle_button_class->toggled = terminal_menu_button_toggled;
signals[UPDATE_MENU] =
g_signal_new (I_("update-menu"),
G_OBJECT_CLASS_TYPE (klass),
G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (TerminalMenuButtonClass, update_menu),
NULL, NULL,
g_cclosure_marshal_VOID__VOID,
G_TYPE_NONE,
0);
}
/* public API */
/**
* terminal_menu_button_new:
*
* Returns: a new #TerminalMenuButton
*/
GtkWidget *
terminal_menu_button_new (void)
{
return g_object_new (TERMINAL_TYPE_MENU_BUTTON, NULL);
}
|
