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
|
/*
* introspection-activatable.c
* This file is part of libintrospection
*
* Copyright (C) 2010 Steve Frécinaux
*
* libintrospection 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 2.1 of the License, or (at your option) any later version.
*
* libintrospection 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* SPDX-License-Identifier: LGPL-2.1-or-later
*/
#include "config.h"
#include "introspection-activatable.h"
/**
* IntrospectionActivatable:
*
* Interface for activatable plugins.
*
* #IntrospectionActivatable is an interface which should be implemented by plugins
* that should be activated on an object of a certain type (depending on the
* application). For instance, in a typical windowed application,
* #IntrospectionActivatable plugin instances could be bound to individual toplevel
* windows.
*
* It is typical to use #IntrospectionActivatable along with [class@ExtensionSet] in order
* to activate and deactivate extensions automatically when plugins are loaded
* or unloaded.
*
* You can also use the code of this interface as a base for your own
* extension types, as illustrated by gedit's %GeditWindowActivatable and
* %GeditDocumentActivatable interfaces.
**/
G_DEFINE_INTERFACE(IntrospectionActivatable, introspection_activatable, G_TYPE_OBJECT)
static void
introspection_activatable_default_init (IntrospectionActivatableInterface *iface)
{
/**
* IntrospectionActivatable:object:
*
* The object property contains the targetted object for this #IntrospectionActivatable
* instance.
*
* For example a toplevel window in a typical windowed application. It is set
* at construction time and won't change.
*/
g_object_interface_install_property (iface,
g_param_spec_object ("object",
"Object",
"Object",
G_TYPE_OBJECT,
G_PARAM_READWRITE |
G_PARAM_CONSTRUCT_ONLY |
G_PARAM_STATIC_STRINGS));
}
/**
* introspection_activatable_activate:
* @activatable: A #IntrospectionActivatable.
*
* Activates the extension on the targetted object.
*
* On activation, the extension should hook itself to the object
* where it makes sense.
*/
void
introspection_activatable_activate (IntrospectionActivatable *activatable)
{
IntrospectionActivatableInterface *iface;
g_return_if_fail (INTROSPECTION_IS_ACTIVATABLE (activatable));
iface = INTROSPECTION_ACTIVATABLE_GET_IFACE (activatable);
g_return_if_fail (iface->activate != NULL);
iface->activate (activatable);
}
/**
* introspection_activatable_deactivate:
* @activatable: A #IntrospectionActivatable.
*
* Deactivates the extension on the targetted object.
*
* On deactivation, an extension should remove itself from all the hooks it
* used and should perform any cleanup required, so it can be unreffed safely
* and without any more effect on the host application.
*/
void
introspection_activatable_deactivate (IntrospectionActivatable *activatable)
{
IntrospectionActivatableInterface *iface;
g_return_if_fail (INTROSPECTION_IS_ACTIVATABLE (activatable));
iface = INTROSPECTION_ACTIVATABLE_GET_IFACE (activatable);
g_return_if_fail (iface->deactivate != NULL);
iface->deactivate (activatable);
}
/**
* introspection_activatable_update_state:
* @activatable: A #IntrospectionActivatable.
*
* Triggers an update of the extension internal state to take into account
* state changes in the targetted object, due to some event or user action.
*/
void
introspection_activatable_update_state (IntrospectionActivatable *activatable)
{
IntrospectionActivatableInterface *iface;
g_return_if_fail (INTROSPECTION_IS_ACTIVATABLE (activatable));
iface = INTROSPECTION_ACTIVATABLE_GET_IFACE (activatable);
if (iface->update_state != NULL)
iface->update_state (activatable);
}
|
