Intercepting IE Link clicked on an IE object

[soulhealer]

hi, is there a way intercept a clicked link on IE object? i mean, capture the link that is clicked on IE object(IE Window) instead of being navigated to that link.

thanks for any help.

[DaleHohm]

It needs to be done on the client-side since AutoIt gets informed of events asynchronously.

See _IEHeadInsertEventScript

Assume the link you want to affect is the 5th link on the page (index 4). The "return false;" aborts the event logic before the navigation occurs:

$oIE = _IECreate(your-url)
$oLink = _IELinkGetCollection($oIE, 4)
$sLinkId = $oLink.uniqueId
_IEHeadInsertEventScript($oIE, $sLinkId, "onclick", "alert('Someone clicked the Link!');return false;")

Dale

Dale

[soulhealer]

It needs to be done on the client-side since AutoIt gets informed of events asynchronously.

See _IEHeadInsertEventScript

Assume the link you want to affect is the 5th link on the page (index 4). The "return false;" aborts the event logic before the navigation occurs:

$oIE = _IECreate(your-url)
$oLink = _IELinkGetCollection($oIE, 4)
$sLinkId = $oLink.uniqueId
_IEHeadInsertEventScript($oIE, $sLinkId, "onclick", "alert('Someone clicked the Link!');return false;")

Dale

Dale

cool, but what if i want to intercept every link on the page, i don't know what the links are, but i wish to capture the link(URL) whenever i click one of them(without navigating to that link).

edit: when u mention 'client-side', u meant that the event response is on the page, not in auto-it process anymore, so there is no way that the link will be captured to auto-it process? except through clipboard i guess, but i dunno javascript, what is the function to put a string on to clipboard? something like ClipPut($string) on auto-it.

Edited January 16, 2008 by soulhealer

[DaleHohm]

Interesting query... here you go:

#include <IE.au3>

$oIE = _IECreate("http://www.google.com")
$oLinks = _IELinkGetCollection($oIE)
For $oLink in $oLinks
    $sLinkId = $oLink.uniqueId
    _IEHeadInsertEventScript($oIE, $sLinkId, "onclick", "return false;")
    ObjEvent($oLink, "_Evt_")
Next

While 1
    Sleep(100)
WEnd

Func _Evt_onclick()
    Local $o_link = @COM_EventObj
    ConsoleWrite($o_link.href & @CR)
EndFunc

Dale

[soulhealer]

Interesting query... here you go:

#include <IE.au3>

$oIE = _IECreate("http://www.google.com")
$oLinks = _IELinkGetCollection($oIE)
For $oLink in $oLinks
    $sLinkId = $oLink.uniqueId
    _IEHeadInsertEventScript($oIE, $sLinkId, "onclick", "return false;")
    ObjEvent($oLink, "_Evt_")
Next

While 1
    Sleep(100)
WEnd

Func _Evt_onclick()
    Local $o_link = @COM_EventObj
    ConsoleWrite($o_link.href & @CR)
EndFunc

Dale

ow great, i'm getting to understand about it, this function insert javascript on to the page, but what if i need to remove it(them) again? also do u know what is the ClipPut(value) on javascript? i have an idea how to get value from javascript back to auto-it through the clipboard memory. Edited January 16, 2008 by soulhealer

[DaleHohm]

ow great, i'm getting to understand about it, this function insert javascript on to the page, but what if i need to remove it(them) again? also do u know what is the ClipPut(value) on javascript? i have an idea how to get value from javascript back to auto-it through the clipboard memory.

This has no affect on the actual page source, only the in-memory copy. Simply reload the page.

Dale

Edit: Typo

Edited January 16, 2008 by DaleHohm

[soulhealer]

i found it, it is window.clipboardData.setData("Text","text to put on clipboard")

the problem is, i dunno what to put on the clipboard. what is the var(on javascript) for the link that was gonna be halted/captured?

Edited January 16, 2008 by soulhealer

[DaleHohm]

I don't understand what you are trying to accomplish.

Dale

[soulhealer]

i found it

this.href

here's my idea:

#include <IE.au3>

$oIE = _IECreate("http://www.google.com")
$oLinks = _IELinkGetCollection($oIE)
For $oLink in $oLinks
    $sLinkId = $oLink.uniqueId
    _IEHeadInsertEventScript($oIE, $sLinkId, "onclick", "window.clipboardData.setData('Text',this.href);return false;")
Next

$oldclip = ""

While 1
    If $oldclip <> ClipGet() Then
       MsgBox(0,"hooray","the link clicked was " & ClipGet())
       $oldclip = ClipGet()
       Else
     ;
    EndIf
    Sleep(100)
WEnd

i just wanted the clicked link value can be retrieved by auto-it so i can put this on my main script, i believe this will work, so thanks a lot, i'm going to sleep now, gonna test this when i woke up. if u find any error or any better way, please post here again, i appreciate it, and again, thanks a lot

Edited January 16, 2008 by soulhealer

[Bert]

It seems odd to want to do this. In all fairness, would you be willing to share what your intent to do with this code? Seems to me it could be used in a bad way. I would like to be wrong on this.....

Edited January 16, 2008 by Volly

[DaleHohm]

Nice, but you can get the same result in the code I posted without using the clipboard or doing any polling if you add your MsgBox...

#include <IE.au3>

$oIE = _IECreate("http://www.google.com")
$oLinks = _IELinkGetCollection($oIE)
For $oLink in $oLinks
    $sLinkId = $oLink.uniqueId
    _IEHeadInsertEventScript($oIE, $sLinkId, "onclick", "return false;")
    ObjEvent($oLink, "_Evt_")
Next

While 1
    Sleep(100)
WEnd

Func _Evt_onclick()
    Local $o_link = @COM_EventObj
    ConsoleWrite($o_link.href & @CR)
    MsgBox(0,"hooray","the link clicked was " & $o_link.href)
EndFunc

Edit: typo

Edited January 16, 2008 by DaleHohm

[soulhealer]

Nice, but you can get the same result in the code I posted without using the clipboard or doing any polling if you add your MsgBox...

#include <IE.au3>

$oIE = _IECreate("http://www.google.com")
$oLinks = _IELinkGetCollection($oIE)
For $oLink in $oLinks
    $sLinkId = $oLink.uniqueId
    _IEHeadInsertEventScript($oIE, $sLinkId, "onclick", "return false;")
    ObjEvent($oLink, "_Evt_")
Next

While 1
    Sleep(100)
WEnd

Func _Evt_onclick()
    Local $o_link = @COM_EventObj
    ConsoleWrite($o_link.href & @CR)
    MsgBox(0,"hooray","the link clicked was " & $o_link.href)
EndFunc

Edit: typo

yes, yours work perfectly i'm attaching yours now in my main script, thanks. Edited January 17, 2008 by soulhealer

[zackrspv]

yes, yours work perfectly i'm attaching yours now in my main script, thanks.

What if you want to detect the links on a page that is always updating? Like in my situation, I have a live embeded IE window, that constantly has links being added to it. So, inserting the event handler when the IE window is created isn't going to work.

I need to be able to detect the link that was clicked, so that I can execute a function, code, or launch the browser. For example, if the link clicked is like: #STSTS-THIS%20ONE; then it would execute a function, or if it was a normal link that includes :// then it would execute the local browser to that address.

This basically allows me to respond to content in the embeded IE window, that is always changing, and fire off events, or normal actions.

Thanks!