browser.EventDownloadProgress never triggered when download file

[wsdexy]

browser.EventDownloadProgress never triggered when download file

[wsdexy]

following code works according to former issue:

package main

import (
	"context"
	"fmt"
	"github.com/chromedp/cdproto/cdp"
	"log"
	"os"
	"path/filepath"
	"reflect"
	"sort"
	"strings"
	"sync"
	"time"

	"github.com/chromedp/cdproto/browser"
	"github.com/chromedp/chromedp"
)

func main() {
	ctx, cancel := chromedp.NewContext(
		context.Background(),
		chromedp.WithLogf(log.Printf),
	)
	defer cancel()

	ctx, cancel = context.WithTimeout(ctx, 60*time.Second)
	defer cancel()

	done := make(chan string, 1)
	
	lock := sync.Mutex{}
	m := make(map[string]int)

	chromedp.ListenBrowser(ctx, func(v interface{}) {
		if ev, ok := v.(*browser.EventDownloadProgress); ok {
			fmt.Println("ev.State", ev.State)

			completed := "(unknown)"
			if ev.TotalBytes != 0 {
				completed = fmt.Sprintf("%0.2f%%", ev.ReceivedBytes/ev.TotalBytes*100.0)
			}
			log.Printf("state: %s, completed: %s\n", ev.State.String(), completed)
			if ev.State == browser.DownloadProgressStateCompleted {
				done <- ev.GUID
				close(done)
			}
		}

		typeString := reflect.TypeOf(v).String()
		lock.Lock()
		m[typeString] += 1
		lock.Unlock()
	})

	// get working directory
	wd, err := os.Getwd()
	if err != nil {
		log.Fatal(err)
	}

	if err := chromedp.Run(ctx,
		chromedp.Navigate(`http://www.sse.com.cn/assortment/stock/list/share/`),
		chromedp.ActionFunc(func(ctx context.Context) error {
			           c := chromedp.FromContext(ctx)
			           return browser.
						   SetDownloadBehavior(browser.SetDownloadBehaviorBehaviorAllowAndName).
						   WithDownloadPath(wd).
						   WithEventsEnabled(true).Do(cdp.WithExecutor(ctx, c.Browser))
			      }),
		chromedp.Click(`body > div.container.sse_content > div > div.col-lg-9.col-xxl-10 > div > div.sse_colContent.js_stocksDepository > h2 > a`, chromedp.BySearch, chromedp.NodeVisible),
	); err != nil && !strings.Contains(err.Error(), "net::ERR_ABORTED") {
		log.Fatal(err)
	}

	time.Sleep(time.Second * 3)

	var keySlice []string
	for k, _ := range m {
		keySlice = append(keySlice, k)
	}
	sort.Strings(keySlice)

	for _, k := range keySlice {
		fmt.Println(k, m[k])
	}

	guid := <-done

	log.Printf("wrote %s", filepath.Join(wd, guid))
}