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QTP - 26 Working with MS IE browser 與IE 互動26 Working with MS IE browser

26 Working with MS IE browser

Concept: QTP can control an IE window using test object, butalso use IE COM interface. In this chapter we will work on how to work with theIE COM APIs, automation of web pages using HTML DOM and change configuration ofIE through the system registry.

26.1 Launching IE

'Method 1: USE QTP

SystemUtil.Run "iexplore.exe"

'Method 2 : Use Shell

Set oShell = CreateObject("WScript.Shell")

oShell.Run "iexplore.exe"

'Method 3: USE IE COM

Set oIEApp = CreateObject("InternetExplorer.Application")

oIEApp.Visible = True

oIEApp.Navigate2 "www.baidu.com"

Get the IE Window’s handle to QTP test object(經過實驗,oIEApp.HWND和實際IE的HWND的值不等,是以找不到對象browser;其他的屬性如width值也不等)

iehwnd = oIEApp.HWND

Browser("hwnd:="& iehwnd).Close

26.2 Useful IE COM Methods and Properties:

Method Name Description
Navigate2 Opens a specified URL in the browser.
Stop Stops navigation in the browser.
Refresh Refreshes the current page.
Quit Close the browser
GoBack Navigates one page back
GoHome Navigates to homepage
GoForward Navigates one page forward
GoSearch Open the search page
Property Name Type Description
Left Long Left position of the window
Top Long Top position of the window
Width Long Width of the window
Height Long Height of the window
AddressBar Boolean Controls whether address bar is shown
FullScreen Boolean Maximizes window and turn off bars
LocationName String Gets the short name of the current URL/filev
LocationURL String Gets the full name of the current URL
Path String Return application path
Resizable Boolean Controls if the window is resizable
Slient Boolean Controls if the dialog box  can be shown
Type String Returns the type of contained document object
Visible Boolean Determines if the application is visible or not
Busy Boolean Query to see if something is still in process
ReadyState Long Have one of the following value: READYSTATE_UNINITIALIZED; READYSTATE_LOADING; READYSTATE_LOADED; READYSTATE_INTERACTIVE; READYSTATE_COMPLETE.

E.g. page synchronization(not work when page have frames):

Do

     DoEvent

Loop while IE.Busy = True

26.3 Enumerating all IE windows

'Function to enumerate all open IE windows

Function EnumerateIE()

  'This is needed in case an IE window is closed

  'while this function is executing

  On Error Resume Next

  'Create a dictionary for returning the collection of open IE

  'windows

  Set EnumerateIE = CreateObject("Scripting.Dictionary")

  'Get the windows shell application

  Set oWinShell = CreateObject("Shell.Application")

  'Get a collection all open explore windows,

  'Microsoft Explorer + Internet Explorer

  Set allWindows = oWinShell.Windows

  'Loop through each window

  For Each oWindow In allWindows

    'Check if it is internet explorer process then only add it

    If InStr(1, oWindow.FullName, "iexplore.exe",vbTextCompare) Then

      EnumerateIE.Add oWindow.hwnd, oWindow

    End if

  Next

End Function

26.4 Close all the IE windows

SystemUtil.CloseProcessByName("iexplore.exe")

或者用上面的functionEnumerateIE().

Set allIE = EnumerateIE()

'Lets quit all the IE

For Each oIE In allIE.Items

  oIE.quit 

Next

26.5 Finding an IE window

Set allIE = EnumerateIE()

'Lets quit all the IE

For Each oIE In allIE.Items

  If oIE.hwnd = iehWnd Then

      'We found the associated IE window. Return its COM interface object

      Set GetIECOMByhWnd = oIE

  End If

Next

Similarly we can search for IE using its RUL:

Set allIE = EnumerateIE()

'Lets quit all the IE

For Each oIE In allIE.Items

    If InStr(oIE.LocationURL, ieURL) Then

      'We found the associated IE window. Return its COM interface object

      Set GetIECOMByURL = oIE

End If

Next

26.6 Getting Web Page DOM

Set oIE = CreateObject("InternetExplorer.Application")

'Make the application visible

oIE.Visible = True

'Navigate to a web site

oIE.Navigate2 "www.mywebsite.com"

While oIE.Busy: Wend

'Get DOM document object

Set oDOMDoc = oIE.Document

‘The following is the same as Chapter 19: html DOM.

26.7 Accessing webpage script variables: Using Chapter 19: html DOM.

26.8 Custom Browser Application:

Note: 有的應用程式把Browser嵌在裡面,就要把這個程式注冊為Browser。

To identify embedded browser we first need to register, useQTP tool: Start MenuàAll Programs àQTP àTools àRegister New Browser Control àInput the application full path and registered.

26.9 Using a Browser Object as a Window Object

Note:  有時候你要用Window的自帶方法,就把Browser轉換為Window。

‘Use windows handle property (hwnd)

hwnd = Brwser(“”).GetROProperty(“hwnd”)

Set oBrowserWindow = Window(“hwnd:= &hwnd”)

‘now you can use any window method

26.10 Checking for Broken images on a web page

Note: Broken image has following property values:

--fileSize = -1

--readyState = “uninitialized”

思路: 利用htmlDom 得到image的屬性值, 和上面的value相比。

Public Function CheckBrokenImages(oPage)

  pgTitle = oPage.GetROProperty("title")

  Set allImages = oPage.object.Images

  iCount = allImages.Length - 1

  For i = 0 To iCount

    Set curIMG = allImages.item(i)

    sHTML = "HTML = " & curIMG.outerHTML

    If curIMG.fileSize = -1 Then

      'The image did not load

      Reporter.ReportEvent micFail, pgTitle & "Broken Image", sHTML

    Else

      Reporter.ReportEvent micPass, pgTitle & "Valid Image", sHTML

    End if

  Next

End Function

26.11 IE Popup Dialogs

Note: two methods to handle: 1st method is towrite code which checks for various dialogs and take nessary action to skipthem; 2nd method to change the IE setting manually ofprogrammatically to disable display of these popups.

26.11-1 Disabling IE dialogs:

Note: Not good. The appoarch take default action on thedialog, if dialog default “No” to save file, you will not click “Yes” to savefiles from IE.

Browser(“..”).Object.Silent = True

26.11-2 Changing IE setting using the Registry:

思路:這中辦法在項目中經常應用,可以改變windows注冊資訊。 不過要小心點使用,而且建議改完後再恢複原值。

'Create a Window's shell object

Set WshShell = WScript.CreateObject("WScript.Shell")

'Write to the registry

WshShell.RegWrite "HKCU\Software\Microsoft\TestThis", "TESTValue", "REG_SZ"

'Read from the Registry

Msgbox WshShell.RegRead("HKCU\Software\Microsoft\TestThis")

'Delete a registry key

Msgbox WshShell.RegDelete("HKCU\Software\Microsoft\TestThis")

26.11-3 Popup blocked

Dialog infor: Pop-up blocked. To see this popup or additionalaptions click here…….

1st  method:

popupKeyPath = “HKCU\Software\Microsoft\Internet Explorer\New Windows\PopupMgr”

‘Disable IE popup blocked

WshShell.RegWrite popupKeyPath, “no”, “REG_SZ”

‘Able IE popup blocked

WshShell.RegWrite popupKeyPath, “yes”, “REG_SZ”

2nd method: Add this website to the “popup allowed” list byfollowing code:

sDomain= “www.google.com”

popupAllowKey = “HKCU\Software\Microsoft\Internet Explorer\New Windows\Allow\”

WshShell.RegWrite  popupAllowKey & sDomain, 0 , “REG_BINARY”

26.11-4 Disable Sript Error dialog

Note: QTP error dialogs, e.g. runtime error dialogs:

‘Disable all script debug dialogs

WshShell.RegWrite   “HKCU\Software\Microsoft\Internet Explorer\Main\Disable Script Debugger”, “yes”, “REG_SZ”

WshShell.RegWrite   “HKCU\Software\Microsoft\Internet Explorer\Main\Disable Script DebuggerIE”, “yes”, “REG_SZ”

WshShell.RegWrite   “HKCU\Software\Microsoft\Internet Explorer\Main\Error Dlg Displayed On Every Error”, “no”, “REG_SZ”

26.11-5 Security Alert –Redirection popup

Note:  Infor: You areredirected to a connection that is not secure …….

‘Disable the dialogs

WshShell.RegWrite   “HKCU\Software\Microsoft\Windows\CurrentVersion\Internet_

Setting\WarnOnPosRedirect”, “no”, “REG_SZ”

26.11-6 Security Alert –Certificate  warning

Note:  Infor: Informationyou exchange with this site cannot be viewed or changed by others. However …….

‘Disable the dialogs

WshShell.RegWrite   “HKCU\Software\Microsoft\Windows\CurrentVersion\Internet_

Setting\”, “no”, “REG_SZ”

26.11-7 Security Alert –Secure  Connection

Note:  Infor: You areabout to view pages over a secure connection……..

‘Disable the dialogs

WshShell.RegWrite   “HKCU  HKCU\Software\Microsoft\Windows\CurrentVersion\Internet_

Setting\WarnOnPost”, “no”, “REG_SZ”

26.11-8 Security Information –Secure  and non-secure item

Note1:  Infor: Thispage contains both secure and nonsecure items…….

Note2: Security information settings are stored in a zone. Thereare five different zones in IE setting:

--       My Computer

--        Local Intranet Zone

--       Trusted sites Zone

--       Internet Zone

--       Restricted Sites Zone

Each setting belonging to a above zone has its correspondingcode. Pls find codes in MS KB article 182569 (http://support.microsoft.com/kb/182569)

'Various zone codes

'Value    Setting

'------------------------------

'0        My Computer

'1        Local Intranet Zone

'2        Trusted sites Zone

'3        Internet Zone

'4        Restricted Sites Zone

'0 - enabled, 1 - prompt, 3 - disabled

newValue = 0

'Disable the Security information secure non-secure popup in all the Zones

SettingCode = "1609"

'Change the setting for all 5 zones

For i = 0 To 4

  ChangeIEZoneSetting CStr(i), SettingCode, newValue

Next

'Function to change specified setting in a specified zone

Function ChangeIEZoneSetting(ByVal ZoneCode, ByVal SettingCode, ByVal newValue)

  Dim WshShell

  Set WshShell = CreateObject("WScript.Shell")

  keyPath = "HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones"

  WshShell.RegWrite keyPath & "\" & ZoneCode & "\" & SettingCode, newValue, "REG_DWORD"

End Function

26.11-9 Active content/ Java Script prompt

Note:  Infor: To helpprotect your security, Internet Explorer has restricted this file……

'Various zone codes

'Value    Setting

'------------------------------

'0        My Computer

'1        Local Intranet Zone

'2        Trusted sites Zone

'3        Internet Zone

'4        Restricted Sites Zone

'0 - enabled, 1 - prompt, 3 - disabled

newValue = 0

'Disable all the Zones

SettingCode = "1400"

'Change the setting for all 5 zones

For i = 0 To 4

  ChangeIEZoneSetting CStr(i), SettingCode, newValue

Next

26.11-10 File Download -- Information Bar

Note:  Infor: To helpprotect your security, Internet Explorer has blocked  this site from downloading files ……

'Various zone codes

'Value    Setting

'------------------------------

'0        My Computer

'1        Local Intranet Zone

'2        Trusted sites Zone

'3        Internet Zone

'4        Restricted Sites Zone

'0 - enabled, 1 - prompt, 3 - disabled

newValue = 0

'Disable all the Zones

SettingCode = "2200"

'Change the setting for all 5 zones

For i = 0 To 4

  ChangeIEZoneSetting CStr(i), SettingCode, newValue

Next

26.12 Handing popup dialog by using a code:

思考: 就是通過DP拿到對象。

Public Function CleanBrowserPopups(oBrw)

  'Get the popup dialog

  Set oPopDlg   = oBrw.Dialog("ispopupwindow:=True")

  CleanBrowserPopups = False

  If oPopDlg  .Exist(0) Then

    'There is a popup dialog

    'Get its title

    sPopTitle = oPopDlg.GetROProperty("title")

    Select Case LCase(sPopTitle)

      Case "security information", "security alert", "security warning"  "error"

        'Either a OK button would be there or a yes button

        'Use a regular expression to cater both in a single statement

        oPopDlg.WinButton("text:=(&Yes|OK)").Click

        CleanBrowserPopups = True

        Reporter.ReportEvent micPass, sPopTitle, "Closed IE dialog popup"

      Case "enter network password"

        'CODE to handle enter network password widows

        'this is application to Windows 2000 OS

      Case Else

        If Left(LCase(sPopTitle),10) = "connect to" Then

          'CODE to handle enter network password windows

          'this is application to Windows XP OS

        Else

          MsgBox "Unknown dialog box - " & sPopTitle

        End If

    End Select

  End If

End Function

'We can register this as user defined user method

RegisterUserFunc "Browser", "CleanBrowserPopups", "CleanBrowserPopups"

If Browser("creationtime:=0").CleanBrowserPopups = True Then

  MsgBox "Cleaned all dialogs in the browser"

End if

26.12 File Dowloading –Security Warning popup

思考: 就是通過DP拿到對象。

There are 3 dialogs occur:

 --File Download – SecurityWarning

--Save As

--File Download

'Function to download a file from IE

Public Function IEDownloadFile(ByVal oDlg, ByVal sFileName, ByVal bWaitComplete)

  sPopup = "ispopupwindow:=true"

  sBtn = "nativeclass:=button"

  'We will use window handle because the title will change later

  'From "File Download" to "Download Complete", but handle will remain

  'the same

  hWnd = oDlg.GetROProperty("hwnd")

  With Dialog("hwnd:=" & hwnd)

    'Get the value of the close on download complete checkbox

    sCloseAfterDownload=.WinCheckBox(sBtn,"text:=&Close.*").GetROProperty("checked")

    'Check if the security wanring dialog is present

    If .Dialog(sPopup).Exist(0) Then

      'Two click events needed sometimes as the first one does not do anything

      .Dialog(sPopup).WinButton("text:=&Save",sBtn).Click

      'Make the second click option in case the first one works

      'And to use OptionalStep we need to use the Complete statement

      OptionalStep.Dialog("hwnd:=" & hwnd).Dialog(sPopup).WinButton("text:=&Save",sBtn).Click

    End if

    'Enter the complete file name in the save windo

      hwnd=.Dialog(sPopup).GetROProperty("hwnd")

      .Dialog(sPopup).Activate

      .Dialog(sPopup).WinEdit("nativeclass:=Edit","attached text:=File &name\:").Set ""

      .Dialog(sPopup).WinEdit("nativeclass:=Edit","attached text:=File &name\:").Type sFileName

      .Dialog(sPopup).WinButton(sBtn,"text:=&Save").Click

    'Check if the file already exist dialog has appeared

    'We get the Save As dialog handle and then check for the

    'File allready exist. Going by the normal way we would have used

    'Dialog("hwnd:=" & hwnd).Dialog(sPopup).Dialog(sPopup).Exist(0)

    'Which is expected to work but it does not. So  to reduce one level

    'of hierarchy we take the hWnd and use it

    If Dialog("hwnd:=" & hwnd).Dialog(sPopup).Exist(0) Then

      Dialog("hwnd:=" & hwnd).Dialog(sPopup).WinButton(sBtn,"text:=&Yes").Click

    End If

    If bWaitComplete Then

      'Once download is complete either the window is closed if the checkbox

      'was checked or the Open Folder on the window will change get enabled

      While .Exist(0) and Not .WinButton("text:=Open &Folder").GetROProperty("enabled")

        Wait 1

      Wend

      'If the checkbox OFF then we need to close the dialog   

      If sCloseAfterDownload = "OFF" then .Close

    End if

  End with

End Function

‘Use the above function

Set oDlg = Dialog(“text:=File Download”, “Index:=0”)

‘Download file synchronously

IEDownloadFile oDlg, “c:\Test.exe”, True

‘Download file asynchronously

IEDownloadFile oDlg, “c:\Test.exe”, False

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