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
|
#include <wanda/command.hpp>
#include <wanda/control_interface.hpp>
#include <wanda/environment.hpp>
#include <wanda/filesystem.hpp>
#include <wanda/logging.hpp>
#include <wanda/optional.hpp>
#include <wanda/setting.hpp>
#include <wanda/wallpaper.hpp>
#include <wanda/xdg.hpp>
#include <asio.hpp>
#include <lyra/lyra.hpp>
#include <spdlog/sinks/stdout_color_sinks.h>
#include <csignal>
#include <cstdlib>
#include <iostream>
#include <set>
#include <string>
namespace
{
constexpr auto image_filter = [](auto const & path) {
static auto const extensions = std::set<std::filesystem::path>{
std::filesystem::path{".jpg"},
std::filesystem::path{".png"},
};
if (!std::filesystem::is_regular_file(path))
{
return false;
}
return extensions.find(path.extension()) != extensions.cend();
};
struct cli
{
std::string wallpaper_directory{};
bool help{};
lyra::cli_parser parser{};
auto parse(int argc, char const * const * argv, std::ostream & error)
{
parser |= lyra::arg{wallpaper_directory, "directory"}("The wallpaper source directory").required() |
lyra::help(help);
auto result = parser.parse({argc, argv});
if (!result)
{
error << "Error while processing command line arguments: "
<< result.errorMessage()
<< '\n'
<< parser
<< '\n';
return false;
}
return true;
}
};
struct listener : wanda::control_interface::listener
{
listener(std::vector<std::filesystem::path> const & wallpapers)
: m_wallpapers{wallpapers}
{
}
void on_received(wanda::control_interface & interface, wanda::command command) override
{
switch (command.id)
{
case wanda::command_id::change: {
auto wallpaper = wanda::random_pick(m_wallpapers);
wanda::get_logger()->info("changing wallpaper to '{}'", wallpaper.native());
wanda::set_wallpaper(wallpaper);
break;
}
default:
wanda::get_logger()->error("received unknown command '{}'", static_cast<int>(command.id));
}
}
private:
std::vector<std::filesystem::path> const & m_wallpapers;
};
} // namespace
int main(int argc, char const * const * argv)
{
using namespace wanda::std_ext;
auto cli = ::cli{};
if (!cli.parse(argc, argv, std::cerr))
{
return EXIT_FAILURE;
}
else if (cli.help)
{
std::cout << cli.parser << '\n';
return EXIT_SUCCESS;
}
wanda::initialize_logger(std::make_shared<spdlog::sinks::stdout_color_sink_st>());
wanda::get_logger()->info("wanda is starting up");
with(wanda::scan({cli.wallpaper_directory}, image_filter), [&](auto const & list) {
auto service = asio::io_service{};
auto socket_path = wanda::xdg_path_for(wanda::xdg_directory::runtime_dir, wanda::environment{}) / ".wanda_interface";
wanda::get_logger()->info("starting control interface on '{}'", socket_path.native());
auto listener = ::listener{list};
auto interface = wanda::make_interface(service, socket_path, listener);
if (!interface)
{
wanda::get_logger()->error("failed to start control interface");
return;
}
if (interface->start())
{
return;
}
auto signals = asio::signal_set{service, SIGINT};
signals.async_wait([&](auto const & error, auto const signal) {
if (!error && signal == SIGINT)
{
interface->shutdown();
service.stop();
}
});
auto wallpaper = wanda::random_pick(list);
wanda::set_wallpaper(wallpaper);
service.run();
}) ||
[&] { wanda::get_logger()->error("wallpaper directory does not exist"); };
}
|
