74 lines
1.8 KiB
Go
74 lines
1.8 KiB
Go
// Example copy shows how to place text data in the CLIPBOARD selection.
|
|
package main
|
|
|
|
import "os"
|
|
import "io"
|
|
import "log"
|
|
import "bytes"
|
|
import "github.com/jezek/xgbutil"
|
|
import "github.com/jezek/xgb/xproto"
|
|
import "git.tebibyte.media/tomo/xgbsel"
|
|
import "github.com/jezek/xgbutil/xprop"
|
|
import "github.com/jezek/xgbutil/xevent"
|
|
import "github.com/jezek/xgbutil/xwindow"
|
|
|
|
// data is a very basic implementation of xgbsel.Data that only serves data of
|
|
// one type.
|
|
type data struct {
|
|
buffer io.ReadSeekCloser
|
|
mime string
|
|
}
|
|
|
|
func (this *data) Convert (target xgbsel.Target) (io.ReadSeekCloser, bool) {
|
|
if mime, _ := target.ToMime(); mime == this.mime {
|
|
return this.buffer, true
|
|
} else {
|
|
return nil, false
|
|
}
|
|
}
|
|
|
|
func (this *data) Supported () []xgbsel.Target {
|
|
return xgbsel.MimeToTargets(this.mime)
|
|
}
|
|
|
|
// nopSeekCloser is like io.NopCloser but for an io.ReadSeeker.
|
|
type nopSeekCloser struct { io.ReadSeeker }
|
|
func (nopSeekCloser) Close () error { return nil }
|
|
|
|
func main () {
|
|
// get data from user
|
|
log.Println("enter data, ^D when done: ")
|
|
buffer, _ := io.ReadAll(os.Stdin)
|
|
data := &data {
|
|
buffer: nopSeekCloser {
|
|
ReadSeeker: bytes.NewReader(buffer),
|
|
},
|
|
mime: "text/plain",
|
|
}
|
|
|
|
// establish connection
|
|
X, err := xgbutil.NewConn()
|
|
if err != nil {
|
|
log.Fatal(err)
|
|
}
|
|
|
|
// create window
|
|
window, err := xwindow.Generate(X)
|
|
if err != nil {
|
|
log.Fatalln("could not generate a new window X id:", err)
|
|
}
|
|
window.Create(X.RootWin(), 0, 0, 500, 500, xproto.CwBackPixel, 0xffffffff)
|
|
|
|
// obtain claim on CLIPBOARD
|
|
log.Println("obtaining claim")
|
|
clipboard, _ := xprop.Atm(X, "CLIPBOARD")
|
|
claim := xgbsel.NewClaim(window, clipboard, data)
|
|
|
|
// listen for events
|
|
window.Listen(xproto.EventMaskPropertyChange)
|
|
xevent.SelectionRequestFun(claim.HandleSelectionRequest).Connect(X, window.Id)
|
|
|
|
log.Println("running main event loop")
|
|
xevent.Main(X)
|
|
}
|