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Updating edge-simple example (WIP)

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This commit is contained in:
Kenneth Shaw 2017-02-08 21:41:07 +07:00
parent f557f48716
commit 705f3be8e5
1 changed files with 32 additions and 18 deletions
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50
examples/edge-simple/main.go
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@ -4,11 +4,14 @@ package main
import ( import (
"context" "context"
"fmt"
"io/ioutil"
"log" "log"
"time"
"github.com/knq/chromedp" cdp "github.com/knq/chromedp"
cdptypes "github.com/knq/chromedp/cdp"
"github.com/knq/chromedp/client" "github.com/knq/chromedp/client"
//"github.com/knq/chromedp/runner"
) )
func main() { func main() {
@ -25,40 +28,51 @@ func main() {
// create edge instance // create edge instance
watch := client.New().WatchPageTargets(ctxt) watch := client.New().WatchPageTargets(ctxt)
if err != nil { c, err := chromedp.New(ctxt, chromedp.WithTargets(watch))
log.Fatal(err)
}
cdp, err := chromedp.New(ctxt, chromedp.WithTargets(watch))
if err != nil { if err != nil {
log.Fatal(err) log.Fatal(err)
} }
// run task list // run task list
var res string var site, res string
err = googleSearch(cdp, "site:brank.as", &res).Do(ctxt) err = c.Run(ctxt, googleSearch("site:brank.as", "Easy Money Management", &site, &res))
if err != nil { if err != nil {
log.Fatal(err) log.Fatal(err)
} }
log.Printf("got attributes: `%s`", res)
// shutdown chrome // shutdown chrome
return err = c.Shutdown(ctxt)
err = cdp.Shutdown(ctxt)
if err != nil { if err != nil {
log.Fatal(err) log.Fatal(err)
} }
err = cdp.Wait() // wait for chrome to finish
err = c.Wait()
if err != nil { if err != nil {
log.Fatal(err) log.Fatal(err)
} }
log.Printf("saved screenshot of #testimonials from search result listing `%s` (%s)", res, site)
} }
func googleSearch(c *chromedp.CDP, q string, res *string) chromedp.Tasks { func googleSearch(q, text string, site, res *string) cdp.Tasks {
return chromedp.Tasks{ var buf []byte
c.Navigate(`https://www.google.com`), sel := fmt.Sprintf(`//a[text()[contains(., '%s')]]`, text)
c.WaitVisible(`#hplogo`), return cdp.Tasks{
c.AttributeValue(`#hplogo`, "title", res, nil), cdp.Navigate(`https://www.google.com`),
cdp.Sleep(2 * time.Second),
cdp.WaitVisible(`#hplogo`, cdp.ByID),
cdp.SendKeys(`#lst-ib`, q+"\n", cdp.ByID),
cdp.WaitVisible(`#res`, cdp.ByID),
cdp.Text(sel, res),
cdp.Click(sel),
cdp.Sleep(2 * time.Second),
cdp.WaitVisible(`#footer`, cdp.ByQuery),
cdp.WaitNotVisible(`div.v-middle > div.la-ball-clip-rotate`, cdp.ByQuery),
cdp.Location(site),
cdp.Screenshot(`#testimonials`, &buf, cdp.ByID),
cdp.ActionFunc(func(context.Context, cdptypes.FrameHandler) error {
return ioutil.WriteFile("testimonials.png", buf, 0644)
}),
} }
} }