51 lines
766 B
Go
51 lines
766 B
Go
|
package main
|
||
|
|
|
||
|
|
import (
|
||
|
|
"context"
|
||
|
|
"log"
|
||
|
|
|
||
|
|
cdp "github.com/knq/chromedp"
|
||
|
|
)
|
||
|
|
|
||
|
|
func main() {
|
||
|
|
var err error
|
||
|
|
|
||
|
|
// create context
|
||
|
|
ctxt, cancel := context.WithCancel(context.Background())
|
||
|
|
defer cancel()
|
||
|
|
|
||
|
|
// create chrome instance
|
||
|
|
c, err := cdp.New(ctxt)
|
||
|
|
if err != nil {
|
||
|
|
log.Fatal(err)
|
||
|
|
}
|
||
|
|
|
||
|
|
// run task list
|
||
|
|
var res string
|
||
|
|
err = c.Run(ctxt, text(&res))
|
||
|
|
if err != nil {
|
||
|
|
log.Fatal(err)
|
||
|
|
}
|
||
|
|
|
||
|
|
// shutdown chrome
|
||
|
|
err = c.Shutdown(ctxt)
|
||
|
|
if err != nil {
|
||
|
|
log.Fatal(err)
|
||
|
|
}
|
||
|
|
|
||
|
|
// wait for chrome to finish
|
||
|
|
err = c.Wait()
|
||
|
|
if err != nil {
|
||
|
|
log.Fatal(err)
|
||
|
|
}
|
||
|
|
|
||
|
|
log.Printf("overview: %s", res)
|
||
|
|
}
|
||
|
|
|
||
|
|
func text(res *string) cdp.Tasks {
|
||
|
|
return cdp.Tasks{
|
||
|
|
cdp.Navigate(`https://golang.org/pkg/time/`),
|
||
|
|
cdp.Text(`#pkg-overview`, res, cdp.ElementVisible, cdp.ByID),
|
||
|
|
}
|
||
|
|
}
|