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
#include <flutter/flutter_window_controller.h>
#include <linux/limits.h>
#include <unistd.h>
#include <cstdlib>
#include <iostream>
#include <memory>
#include <vector>
#include "flutter/generated_plugin_registrant.h"
#include "window_configuration.h"
namespace {
// Returns the path of the directory containing this executable, or an empty
// string if the directory cannot be found.
std::string GetExecutableDirectory() {
char buffer[PATH_MAX + 1];
ssize_t length = readlink("/proc/self/exe", buffer, sizeof(buffer));
if (length > PATH_MAX) {
std::cerr << "Couldn't locate executable" << std::endl;
return "";
}
std::string executable_path(buffer, length);
size_t last_separator_position = executable_path.find_last_of('/');
if (last_separator_position == std::string::npos) {
std::cerr << "Unabled to find parent directory of " << executable_path
<< std::endl;
return "";
}
return executable_path.substr(0, last_separator_position);
}
} // namespace
int main(int argc, char **argv) {
// Resources are located relative to the executable.
std::string base_directory = GetExecutableDirectory();
if (base_directory.empty()) {
base_directory = ".";
}
std::string data_directory = base_directory + "/data";
std::string assets_path = data_directory + "/flutter_assets";
std::string icu_data_path = data_directory + "/icudtl.dat";
// Arguments for the Flutter Engine.
std::vector<std::string> arguments;
flutter::FlutterWindowController flutter_controller(icu_data_path);
flutter::WindowProperties window_properties = {};
window_properties.title = kFlutterWindowTitle;
window_properties.width = kFlutterWindowWidth;
window_properties.height = kFlutterWindowHeight;
// Start the engine.
if (!flutter_controller.CreateWindow(window_properties, assets_path,
arguments)) {
return EXIT_FAILURE;
}
RegisterPlugins(&flutter_controller);
// Run until the window is closed.
while (flutter_controller.RunEventLoopWithTimeout(
std::chrono::milliseconds::max())) {
}
return EXIT_SUCCESS;
}