_IEquerySelectorAll()

uncommon · March 21, 2016

So in my time of coding I found a better, precise and more powerful way of finding element objects by classname and by tags. Its called querySelectorAll and it looks like this.

Now I can forget needing to use a combination of _ietagnameget... and _iegetobjbyclassname... and just use one function.

I have not tested this on the latest version of autoit, due to the many script braking changes, but I think it should still work.

Credit to Dale Hohm who built the foundation of IE UDF and mLipok who made the error checking better on a previous post.

DO note: This a relatively recent add-on to IE so it requires IE 9 and above. If you find you receive a com error of "unknown name" its likely the site is using meta tag attribute X-UA-Compatible which has reverted the browser to forget about it.

Comments welcome

;#FUNCTION#=============================================================================================================
; Name...........: _IEquerySelectorAll()
; Description ...: Returns an Object or a Colection of objects
; Syntax.........: (ByRef $oDoc, $sQuery, $iItemIndex = Default)
; Parameters ....: $oDoc - The document object from IE
;                  $sQuery - String of Query. Example: _IEquerySelectorAll($oDoc, '"div.note, div.alert"', Default) will return a colection of div elements with classes of note and alert
;                  $iItemIndex -     [optional] Default returns a colection, else use a 0 based index to indicate the object in sequence
; Return values .: Success - Object or a Colection of objects
;                  Failure - returns 0 sets the @error flag to non-zero.
;                   3 ($_IEStatus_InvalidDataType) - Invalid Data Type
;                   4 ($_IEStatus_InvalidObjectType) - Invalid Object Type
;                   5 ($_IEStatus_InvalidValue) - Invalid Value
;                   7 ($_IEStatus_NoMatch) - No Match
; Author ........: XThrax aka uncommon
; Remarks .......: This fuction was pretty much stolen from Dale Hohm the IE UDF creator so much credit to him, also to mLipok who made the error checking better.
;                   Also note that this a relatively recent add-on to IE so it requires IE 9 and above.
;                   If you find you receive a com error of "unknown name" its likely the site is using meta tag attribute X-UA-Compatible which has reverted the browser to forget about it.
;
; Related .......: _IETagNameAllGetCollection();_IEClassNameGetCollection()
; Link ..........;https://www.autoitscript.com/forum/topic/181376-_iequeryselectorall/
;                 https://msdn.microsoft.com/en-us/library/cc304115(v=vs.85).aspx
; Example .......; No
; =====================================================================================================================


Func _IEquerySelectorAll(ByRef $oDoc, $sQuery, $iItemIndex = Default)
    If Not IsObj($oDoc) Then
        ConsoleWriteError("--> _IEquerySelectorAll Error: " & $_IEStatus_InvalidDataType & " Invalid DataType" & @LF)
        Return SetError($_IEStatus_InvalidDataType, 1, 0)
    ElseIf Not __IEIsObjType($oDoc, "browserdom") Then
        ConsoleWriteError("--> _IEquerySelectorAll Error: " & $_IEStatus_InvalidObjectType & " Invalid ObjectType" & @LF)
        Return SetError($_IEStatus_InvalidObjectType, 2, 0)
    ElseIf Not IsNumber($iItemIndex) And $iItemIndex <> Default Then
        ConsoleWriteError("--> _IEquerySelectorAll Error: " & $_IEStatus_InvalidValue & " Invalid Index" & @LF)
        Return SetError($_IEStatus_InvalidValue, 3, 0)
    ElseIf $iItemIndex = Default Or $iItemIndex >= 0 Then
        Local $oTemp = Null
        If __IEIsObjType($oDoc, "documentcontainer") Then
            $oTemp = _IEDocGetObj($oDoc)
            ConsoleWriteError("--> _IEDocGetObj Error: " & @error & " Ext: " & @extended & @LF)
            If @error Then Return SetError(@error, @extended, 0)
        Else
            $oTemp = $oDoc
        EndIf
        Local $oClassColl = $oTemp.querySelectorAll($sQuery)
        If @error Then
            ConsoleWriteError("--> _IEquerySelectorAll Error: " & $_IESTATUS_GeneralError & " GeneralError1: " & @error & @LF)
            Return SetError($_IESTATUS_GeneralError, 3, 0)
        ElseIf (Not IsObj($oClassColl)) Or $oClassColl = Null Or $oClassColl.length = 0 Then
            ConsoleWriteError("--> _IEquerySelectorAll Error: " & $_IEStatus_NoMatch & " NoMatch" & @LF)
            Return SetError($_IEStatus_NoMatch, 0, 0) ; Could be caused by parameter 2, 3 or both
        Else
            If $iItemIndex = Default Then
                Return SetError($_IEStatus_Success, $oClassColl.length, $oClassColl)
            ElseIf $iItemIndex > $oClassColl.length Then
                ConsoleWriteError("--> _IEquerySelectorAll Error: " & $_IEStatus_InvalidValue & " Invalid Value" & @LF)
                Return SetError($_IEStatus_InvalidValue, $oClassColl.length, 0)
            Else
                $oItem = $oClassColl.Item($iItemIndex)
                If @error Then
                    ConsoleWriteError("--> _IEquerySelectorAll Error: " & $_IESTATUS_GeneralError & " GeneralError2: " & @error & @LF)
                    Return SetError($_IESTATUS_GeneralError, 3, 0)
                ElseIf (Not IsObj($oItem)) Or $oItem = Null Then
                    ConsoleWriteError("--> _IEquerySelectorAll Error: " & $_IEStatus_NoMatch & " NoMatch Index: " & $iItemIndex & @LF)
                    Return SetError($_IEStatus_NoMatch, 0, 0) ; Could be caused by parameter 2, 3 or both
                Else
                    Return SetError($_IEStatus_Success, 0, $oItem)
                EndIf
            EndIf
        EndIf
    Else
        ConsoleWriteError("--> _IEquerySelectorAll Error: " & $_IEStatus_InvalidValue & " Invalid Value: " & $iItemIndex & @LF)
        Return SetError($_IEStatus_InvalidValue, 3, 0)
    EndIf
EndFunc   ;==>_IEquerySelectorAll

Edited March 30, 2016 by uncommon
spelling

mLipok · March 21, 2016

An interesting function.
What you think about adding them to the IE UDF ?

EDIT:
https://msdn.microsoft.com/pl-pl/library/cc304115(v=vs.85).aspx

Edited March 21, 2016 by mLipok

mLipok · March 22, 2016

Please make an example.

uncommon · March 22, 2016

36 minutes ago, mLipok said:

What you think about adding them to the IE UDF ?

:drool: I would be honored!

....

Well that's a shame, I had prepared this nice example on autoitscript.com but there seems to be some sort of problem with exiting a for in loop iteration.

interestingly enough, its not a detectable com error nor can it be avoided buy exiting a loop early. I am still using autoit 3.3.12.0 I am sure its a bug that has been fixed by now.... right? :sweating:

; Navigates to www.autoitscript.com

; runs _IEquerySelectorAll for first element with class of ".et-pb-controllers" then runs _IEquerySelectorAll for all "a" tags and clicks them.

; runs _IEquerySelectorAll for all "div" elements text with a class of "et_pb_slide_content".

; runs _IEquerySelectorAll for all "li" elements text with in The element with the ID top-menu.

#include <IE.au3>

$oIE = _IECreate("www.autoitscript.com")
If Not @error Then
    $oDoc = _IEDocGetObj($oIE)
    $oElement = _IEquerySelectorAll($oDoc, ".et-pb-controllers", 0)
    If IsObj($oElement) Then
    $oDot = _IEquerySelectorAll($oElement, "a", 3)
    If IsObj($oDot) Then _IEAction($oDot, "click")
    Sleep(2000)
    $oDot = _IEquerySelectorAll($oElement, "a", 2)
        If IsObj($oDot) Then _IEAction($oDot, "click")
    Sleep(2000)
    $oDot = _IEquerySelectorAll($oElement, "a", 1)
        If IsObj($oDot) Then _IEAction($oDot, "click")
    Sleep(2000)
    $oDot = _IEquerySelectorAll($oElement, "a", 0)
        If IsObj($oDot) Then _IEAction($oDot, "click")
    EndIf
    $oElements = _IEquerySelectorAll($oDoc, "div.et_pb_slide_content")
    If IsObj($oElements) Then
        For $oElement In $oElements
            ConsoleWrite($oElement.InnerTEXT & @LF & @LF)
        Next
    EndIf
    $oMenu = _IEGetObjById($oDoc, "top-menu")
    If IsObj($oMenu) Then
        $oElements = _IEquerySelectorAll($oMenu, "li")
        If IsObj($oElements) Then
            For $oElement In $oElements
                ConsoleWrite($oElement.InnerTEXT & @LF)
            Next
        EndIf
    EndIf
EndIf

mLipok · March 22, 2016

Unfortunately, in version 3.3.14.2 it is still not fixed ( I think this is already reported on track).
Thanks for example.

mLipok · March 28, 2016

I found what was a problem:

This is not bug in AutoIt.
This is bug in script.

First read here:

https://msdn.microsoft.com/pl-pl/library/cc304115(v=vs.85).aspx
https://msdn.microsoft.com/pl-pl/library/aa752483(v=vs.85).aspx

then look in MSDN example:

function getFruit() {
   var fruits = document.getElementById('fruitsalad').querySelectorAll('li.fruit');
   var fruitList = "";
   for (var i = 0; i < fruits.length; i++) {
      fruitList = fruitList + (fruits[i].innerHTML+' ');
   }
   inOut.innerHTML = fruitList;
}
function getGreen() {
   var greens = document.getElementById('greensalad').querySelectorAll('li.green');
   var greenList = "";
   for (var i = 0; i < greens.length; i++) {
      greenList = greenList + (greens[i].innerHTML + ' ');
   }
   inOut.innerHTML = greenList;
}

I was wondering why they acces to greens like an array ?
And why they iterating elements in a loop in this specific way.

Then I remember about Remarks in AutoIt HelpFile about frames:

Quote

Although MSDN documents the return value for this function as a collection object, it cannot be looped through with a For...In...Next loop like a standard collection object.
You must instead step through the collection by index - see example.

and ... voila :

;~ #AutoIt3Wrapper_Run_Debug_Mode=Y

; Navigates to www.autoitscript.com

; runs _IEquerySelectorAll for first element with class of ".et-pb-controllers" then runs _IEquerySelectorAll for all "a" tags and clicks them.

; runs _IEquerySelectorAll for all "div" elements text with a class of "et_pb_slide_content".

; runs _IEquerySelectorAll for all "li" elements text with in The element with the ID top-menu.

#include <IE.au3>
_IEErrorHandlerRegister(_User_ErrFunc)

$oIE = _IECreate("www.autoitscript.com")
If Not @error Then
    $oDoc = _IEDocGetObj($oIE)
    $oElement = _IEquerySelectorAll($oDoc, ".et-pb-controllers", 0)
    If IsObj($oElement) Then
        $oDot = _IEquerySelectorAll($oElement, "a", 3)
        If IsObj($oDot) Then _IEAction($oDot, "click")
        Sleep(2000)
        $oDot = _IEquerySelectorAll($oElement, "a", 2)
        If IsObj($oDot) Then _IEAction($oDot, "click")
        Sleep(2000)
        $oDot = _IEquerySelectorAll($oElement, "a", 1)
        If IsObj($oDot) Then _IEAction($oDot, "click")
        Sleep(2000)
        $oDot = _IEquerySelectorAll($oElement, "a", 0)
        If IsObj($oDot) Then _IEAction($oDot, "click")
    EndIf

    $oElements = _IEquerySelectorAll($oDoc, "div.et_pb_slide_content")

    If IsObj($oElements) Then
        For $iElement_idx = 1 To $oElements.length
            ConsoleWrite($oElements.item($iElement_idx).innerText & @LF & @LF)
        Next
    EndIf

    $oMenu = _IEGetObjById($oIE, "top-menu")
    If IsObj($oMenu) Then
        $oElements = _IEquerySelectorAll($oMenu, "li")
        If IsObj($oElements) Then
            For $iElement_idx = 1 To $oElements.length
                ConsoleWrite($oElements.item($iElement_idx).InnerTEXT & @LF)
            Next
        EndIf
    EndIf

EndIf

;#FUNCTION#=============================================================================================================
; Name...........: _IEquerySelectorAll()
; Description ...: Returns an Object or a Colection of objects
; Syntax.........: (ByRef $oDoc, $sQuery, $iItemIndex = Default)
; Parameters ....: $oDoc - The document object from IE
;                  $sQuery - String of Query. Example: _IEquerySelectorAll($oDoc, '"div.note, div.alert"', Default) will return a colection of div elements with classes of note and alert
;                  $iItemIndex -     [optional] Default returns a colection, else use a 0 based index to indicate the object in sequence
; Return values .: Success - Object or a Colection of objects
;                  Failure - returns 0 sets the @error flag to non-zero.
;                   3 ($_IEStatus_InvalidDataType) - Invalid Data Type
;                   4 ($_IEStatus_InvalidObjectType) - Invalid Object Type
;                   5 ($_IEStatus_InvalidValue) - Invalid Value
;                   7 ($_IEStatus_NoMatch) - No Match
; Author ........: XThrax aka uncommon
; Remarks .......: This fuction was pretty much stolen from Dale Hohm the IE UDF creator so much credit to him, also to mLipok who made the error checking better.
;                   Also note that this a relatively recent add-on to IE so it requires IE 9 and above.
;                   If you find you receive a com error of "unknown name" its likely the site is using meta tag attribute X-UA-Compatible which has reverted the browser to forget about it.
;
; Related .......: _IETagNameAllGetCollection();_IEClassNameGetCollection()
; Link ..........;https://www.autoitscript.com/forum/topic/181376-_iequeryselectorall/
;                 https://msdn.microsoft.com/en-us/library/cc304115(v=vs.85).aspx
; Example .......; No
; =====================================================================================================================


Func _IEquerySelectorAll(ByRef $oDoc, $sQuery, $iItemIndex = Default)
    If Not IsObj($oDoc) Then
        ConsoleWriteError("--> _IEquerySelectorAll Error: " & $_IEStatus_InvalidDataType & " Invalid DataType" & @LF)
        Return SetError($_IEStatus_InvalidDataType, 1, 0)
    ElseIf Not __IEIsObjType($oDoc, "browserdom") Then
        ConsoleWriteError("--> _IEquerySelectorAll Error: " & $_IEStatus_InvalidObjectType & " Invalid ObjectType" & @LF)
        Return SetError($_IEStatus_InvalidObjectType, 2, 0)
    ElseIf Not IsNumber($iItemIndex) And $iItemIndex <> Default Then
        ConsoleWriteError("--> _IEquerySelectorAll Error: " & $_IEStatus_InvalidValue & " Invalid Index" & @LF)
        Return SetError($_IEStatus_InvalidValue, 3, 0)
    ElseIf $iItemIndex = Default Or $iItemIndex >= 0 Then
        Local $oTemp = Null
        If __IEIsObjType($oDoc, "documentcontainer") Then
            $oTemp = _IEDocGetObj($oDoc)
            ConsoleWriteError("--> _IEDocGetObj Error: " & @error & " Ext: " & @extended & @LF)
            If @error Then Return SetError(@error, @extended, 0)
        Else
            $oTemp = $oDoc
        EndIf
        Local $oClassColl = $oTemp.querySelectorAll($sQuery)
        If @error Then
            ConsoleWriteError("--> _IEquerySelectorAll Error: " & $_IESTATUS_GeneralError & " GeneralError1: " & @error & @LF)
            Return SetError($_IESTATUS_GeneralError, 3, 0)
        ElseIf (Not IsObj($oClassColl)) Or $oClassColl = Null Or $oClassColl.length = 0 Then
            ConsoleWriteError("--> _IEquerySelectorAll Error: " & $_IEStatus_NoMatch & " NoMatch" & @LF)
            Return SetError($_IEStatus_NoMatch, 0, 0) ; Could be caused by parameter 2, 3 or both
        Else
            If $iItemIndex = Default Then
                Return SetError($_IEStatus_Success, $oClassColl.length, $oClassColl)
            ElseIf $iItemIndex > $oClassColl.length Then
                ConsoleWriteError("--> _IEquerySelectorAll Error: " & $_IEStatus_InvalidValue & " Invalid Value" & @LF)
                Return SetError($_IEStatus_InvalidValue, $oClassColl.length, 0)
            Else
                $oItem = $oClassColl.Item($iItemIndex)
                If @error Then
                    ConsoleWriteError("--> _IEquerySelectorAll Error: " & $_IESTATUS_GeneralError & " GeneralError2: " & @error & @LF)
                    Return SetError($_IESTATUS_GeneralError, 3, 0)
                ElseIf (Not IsObj($oItem)) Or $oItem = Null Then
                    ConsoleWriteError("--> _IEquerySelectorAll Error: " & $_IEStatus_NoMatch & " NoMatch Index: " & $iItemIndex & @LF)
                    Return SetError($_IEStatus_NoMatch, 0, 0) ; Could be caused by parameter 2, 3 or both
                Else
                    Return SetError($_IEStatus_Success, 0, $oItem)
                EndIf
            EndIf
        EndIf
    Else
        ConsoleWriteError("--> _IEquerySelectorAll Error: " & $_IEStatus_InvalidValue & " Invalid Value: " & $iItemIndex & @LF)
        Return SetError($_IEStatus_InvalidValue, 3, 0)
    EndIf
EndFunc   ;==>_IEquerySelectorAll

; User's COM error function.
; After SetUp with ObjEvent("AutoIt.Error", ....) will be called if COM error occurs
Func _User_ErrFunc($oError)
    ; Do anything here.
    ConsoleWrite(@ScriptFullPath & " (" & $oError.scriptline & ") : ==> COM Error intercepted !" & @CRLF & _
            @TAB & "err.number is: " & @TAB & @TAB & "0x" & Hex($oError.number) & @CRLF & _
            @TAB & "err.windescription:" & @TAB & $oError.windescription & @CRLF & _
            @TAB & "err.description is: " & @TAB & $oError.description & @CRLF & _
            @TAB & "err.source is: " & @TAB & @TAB & $oError.source & @CRLF & _
            @TAB & "err.helpfile is: " & @TAB & $oError.helpfile & @CRLF & _
            @TAB & "err.helpcontext is: " & @TAB & $oError.helpcontext & @CRLF & _
            @TAB & "err.lastdllerror is: " & @TAB & $oError.lastdllerror & @CRLF & _
            @TAB & "err.scriptline is: " & @TAB & $oError.scriptline & @CRLF & _
            @TAB & "err.retcode is: " & @TAB & "0x" & Hex($oError.retcode) & @CRLF & @CRLF)
EndFunc   ;==>_User_ErrFunc

Edited March 28, 2016 by mLipok

uncommon · March 29, 2016

Oh! now I see it was crashing because it would try and move to the next iteration and there would not be one. I for in iteration would "Know" or do some kind of internal check to find the length. Makes sense now, thanks for fixing my problem.

mLipok · March 29, 2016

Our "comunity" problem, as this function will be very handy.
Again thanks for sharing.

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