[英]How use SeleniumBasic (VBA) to interact with Shadow-Root DOM element in the chrome://downloads/
我正在嘗試與 Chrome 下載頁面 (chrome://downloads/) 中的元素進行交互,以便能夠確定下載何時完成。
但是我無法與此頁面中的元素進行交互。 我發現這是因為 shadow-root DOM 元素。
我在 google 中找到了一些示例,說明如何使用 java ou C 與這些元素交互,但從未與 VBA 交互。 你能幫忙把這些命令翻譯成 VBA 嗎?
https://medium.com/rate-engineering/a-guide-to-working-with-shadow-dom-using-selenium-b124992559f
谷歌代碼頁:
這是確保腳本將等待下載完成的簡單方法。
Function getDownLoadedFileName(maxTimeInMins As int)
Dim startTime As Date
startTime = Now()
Dim downloadPercentage As int
Do While ElapsedTime(Now(),startTime) < maxTimeInMins
downloadPercentage = driver.execute_script( "return document.querySelector('downloads-manager').shadowRoot.querySelector('#downloadsList downloads-item').shadowRoot.querySelector('#progress').value")
If (downloadPercentage = 100) Then
getDownLoadedFileName = driver.execute_script("return document.querySelector('downloads-manager').shadowRoot.querySelector('#downloadsList downloads-item').shadowRoot.querySelector('div#content #file-link').text")
End If
Loop
End Function
Function ElapsedTime(endTime As Date, startTime As Date)
Dim Interval As Date
' Calculate the time interval.
Interval = endTime - startTime
' Format and return the time interval in seconds.
ElapsedTime = Int(CSng(Interval * 24 * 3600))
End Function
非常感謝! 完美運行。
我只是在這里發布一些我需要做的小修改:
Option Explicit
子 Accessing_ShadowRoot_Object()
'================================='
'Declaração Early-Binding:
'================================='
Dim Selenium As New ChromeDriver '
'================================='
Selenium.Start "chrome", "chrome://downloads"
Selenium.get "/"
Dim Nome_Download As String
Nome_Download = getDownLoadedFileName(Selenium, 10)
Debug.Print Nome_Download
結束子
公共函數 getDownLoadedFileName(Driver As WebDriver, maxTimeInMins As Integer)
Dim startTime As Date
startTime = Now()
Dim downloadPercentage
Do While ElapsedTime(Now(), startTime) < maxTimeInMins
downloadPercentage = Driver.ExecuteScript("return document.querySelector('downloads-manager').shadowRoot.querySelector('#frb0').shadowRoot.querySelector('#progress').value")
Debug.Print downloadPercentage
If (downloadPercentage = 100) Then
getDownLoadedFileName = Driver.ExecuteScript("return document.querySelector('downloads-manager').shadowRoot.querySelector('#downloadsList downloads-item').shadowRoot.querySelector('div#content #file-link').text")
End If
DoEvents
Loop
結束函數
函數 ElapsedTime(endTime As Date, startTime As Date)
Dim Interval As Date
' Calculate the time interval.
Interval = endTime - startTime
' Format and return the time interval in seconds.
ElapsedTime = Int(CSng(Interval * 24 * 3600))
結束函數
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