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
|
/*
* 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 2
* 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
* 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 General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
/** \file
* \ingroup GHOST
*/
#include "GHOST_TaskbarX11.h"
#include <dlfcn.h>
#include <cstdio>
#include <cassert>
#include <cstdlib>
typedef void*(*unity_get_entry_t)(const char*);
typedef void(*unity_set_progress_t)(void*, double);
typedef void(*unity_set_progress_visible_t)(void*, int);
typedef int(*unity_event_loop_t)(void*, int);
static unity_get_entry_t unity_get_entry;
static unity_set_progress_t unity_set_progress;
static unity_set_progress_visible_t unity_set_progress_visible;
static unity_event_loop_t unity_event_loop;
static bool libunity_initialized = false;
static bool libunity_available = false;
static void *libunity_handle = NULL;
void GHOST_TaskBarX11::free()
{
if(libunity_handle) {
dlclose(libunity_handle);
libunity_handle = NULL;
}
}
bool GHOST_TaskBarX11::init()
{
if(libunity_initialized) {
return libunity_available;
}
libunity_initialized = true;
const char *libunity_names[] = {"libunity.so.4", "libunity.so.6", "libunity.so.9", "libunity.so", NULL};
for(int i = 0; libunity_names[i]; i++) {
libunity_handle = dlopen(libunity_names[i], RTLD_LAZY);
if(libunity_handle) {
break;
}
}
if(!libunity_handle) {
return false;
}
unity_get_entry = (unity_get_entry_t) dlsym(libunity_handle, "unity_launcher_entry_get_for_desktop_id");
if(!unity_get_entry) {
fprintf(stderr, "failed to load libunity: %s\n", dlerror());
return false;
}
unity_set_progress = (unity_set_progress_t) dlsym(libunity_handle, "unity_launcher_entry_set_progress");
if(!unity_set_progress) {
fprintf(stderr, "failed to load libunity: %s\n", dlerror());
return false;
}
unity_set_progress_visible = (unity_set_progress_visible_t) dlsym(libunity_handle, "unity_launcher_entry_set_progress_visible");
if(!unity_set_progress_visible) {
fprintf(stderr, "failed to load libunity: %s\n", dlerror());
return false;
}
unity_event_loop = (unity_event_loop_t) dlsym(libunity_handle, "g_main_context_iteration");
if(!unity_event_loop) {
fprintf(stderr, "failed to load libunity: %s\n", dlerror());
return false;
}
atexit(GHOST_TaskBarX11::free);
libunity_available = true;
return true;
}
GHOST_TaskBarX11::GHOST_TaskBarX11(const char *name)
{
if(GHOST_TaskBarX11::init()) {
handle = unity_get_entry(name);
}
else {
handle = NULL;
}
}
bool GHOST_TaskBarX11::is_valid()
{
return (handle != NULL);
}
void GHOST_TaskBarX11::set_progress(double progress)
{
assert(is_valid());
unity_set_progress(handle, progress);
}
void GHOST_TaskBarX11::set_progress_enabled(bool enabled)
{
assert(is_valid());
unity_set_progress_visible(handle, enabled ? 1 : 0);
unity_event_loop(NULL, 0);
}
|
