-
Notifications
You must be signed in to change notification settings - Fork 9
/
main.go
182 lines (167 loc) · 3.88 KB
/
main.go
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
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
package main
import (
"image"
_ "image/png"
"log"
"os"
"github.com/Drakirus/go-flutter-desktop-embedder"
"path/filepath"
"encoding/json"
"runtime"
"errors"
"github.com/go-gl/glfw/v3.2/glfw"
)
const configurationFilename = "config.json"
type configuration struct {
FlutterPath string
FlutterProjectPath string
IconPath string
ScreenHeight int
ScreenWidth int
}
func buildAssetPath(flutterProjectPath string, assetPath string) (string, error) {
if flutterProjectPath == "" {
var (
path string
err error
)
path, err = os.Executable()
if err != nil {
return "", err
}
return filepath.Join(filepath.Dir(path), "flutter_assets"), nil
}
return filepath.Join(flutterProjectPath, assetPath), nil
}
func buildICUDataPath(flutterPath string, icuDataPath string) (string, error) {
if flutterPath == "" {
var (
path string
err error
)
path, err = os.Executable()
if err != nil {
return "", err
}
return filepath.Join(filepath.Dir(path), "icudtl.dat"), nil
}
return filepath.Join(flutterPath, icuDataPath), nil
}
func getConfig() (configuration, error) {
var config configuration
var err error
var file *os.File
var path string
path, err = os.Executable()
if err != nil {
return config, err
}
var configFilename = filepath.Join(filepath.Dir(path), configurationFilename)
file, err = os.Open(configFilename)
if err != nil {
return config, err
}
var decoder = json.NewDecoder(file)
err = decoder.Decode(&config)
if err != nil {
return config, err
}
return config, nil
}
func getPaths() (string, string, error) {
var assetPath string
var icuDataPath string
var err error
switch runtime.GOOS {
case "darwin":
assetPath = "build/flutter_assets"
icuDataPath = "bin/cache/artifacts/engine/darwin-x64/icudtl.dat"
break
case "linux":
assetPath = "build/flutter_assets"
icuDataPath = "bin/cache/artifacts/engine/linux-x64/icudtl.dat"
break
case "windows":
assetPath = "build\\flutter_assets"
icuDataPath = "bin\\cache\\artifacts\\engine\\windows-x64\\icudtl.dat"
break
default:
err = errors.New("invalid operating system")
break
}
return assetPath, icuDataPath, err
}
func handleError(err error) {
log.Fatalln(err)
}
func main() {
var (
config configuration
err error
)
config, err = getConfig()
if err != nil {
handleError(err)
} else {
var setIcon = func(window *glfw.Window) error {
var (
imgFile *os.File
err error
)
var iconPath = config.IconPath
if string(iconPath[0]) != "/" {
var path string
path, err = os.Executable()
if err != nil {
return err
}
iconPath = filepath.Join(filepath.Dir(path), iconPath)
}
imgFile, err = os.Open(iconPath)
if err != nil {
return err
}
var img image.Image
img, _, err = image.Decode(imgFile)
if err != nil {
return err
}
window.SetIcon([]image.Image{img})
return nil
}
var (
assetPath string
icuDataPath string
)
assetPath, icuDataPath, err = getPaths()
if err != nil {
handleError(err)
} else {
var builtAssetPath string
builtAssetPath, err = buildAssetPath(config.FlutterProjectPath, assetPath)
if err != nil {
handleError(err)
} else {
var builtICUDataPath string
builtICUDataPath, err = buildICUDataPath(config.FlutterPath, icuDataPath)
if err != nil {
handleError(err)
} else {
var options = []gutter.Option{
gutter.OptionAssetPath(builtAssetPath),
gutter.OptionICUDataPath(builtICUDataPath),
gutter.OptionWindowInitializer(setIcon),
gutter.OptionWindowDimension(config.ScreenWidth, config.ScreenHeight),
gutter.OptionWindowInitializer(setIcon),
gutter.OptionPixelRatio(1.9),
gutter.OptionVmArguments([]string{"--dart-non-checked-mode", "--observatory-port=50300"}),
}
err = gutter.Run(options...)
if err != nil {
handleError(err)
}
}
}
}
}
}