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package clipboard
import (
"os/exec"
"strings"
"bytes"
)
type ShellClipboard struct {
copyCommand string
pasteCommand string
testCommand string
}
var try = []ShellClipboard {
ShellClipboard {"wl-copy", "wl-paste -n", "wl-copy -h"},
ShellClipboard {
"xclip -selection clipboard", "xclip -selection clipboard -o",
"xclip -h",
},
ShellClipboard {"pbcopy", "pbpaste", "pbcopy -help"},
}
func command(command string) *exec.Cmd {
args := strings.Split(command, " ")
return exec.Command(args[0], args[1:]...)
}
func (c ShellClipboard) Test() bool {
cmd := command(c.testCommand)
return cmd.Run() == nil
}
func (c ShellClipboard) Copy(text string) {
cmd := command(c.copyCommand)
pipe, err := cmd.StdinPipe()
cmd.Start()
go func() {
if err != nil {
return
}
defer pipe.Close()
buf := bytes.NewBuffer([]byte(text))
buf.WriteTo(pipe)
}()
}
func (c ShellClipboard) Paste() <-chan string {
cmd := command(c.pasteCommand)
pipe, err := cmd.StdoutPipe()
cmd.Start()
ch := make(chan string, 1)
go func() {
if err != nil {
return
}
defer pipe.Close()
buf := bytes.NewBuffer(nil)
_, err = buf.ReadFrom(pipe)
if err != nil {
return
}
ch <- buf.String()
close(ch)
}()
return ch
}
func DiscoverCommand() {
for _, c := range try {
if c.Test() {
Set(c)
break
}
}
}
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