# encoding: ascii
# api: powershell
# title: Invoke-JQuery
# description: Invokes JQuery (or plain Javascript) commands via InternetExplorer.Application COM object,after initial injection of JQuery reference in header section.
# version: 1.4.2
# type: function
# author: Dirk Bremen
# license: CC0
# function: Invoke-JQuery
# x-poshcode-id: 2351
# x-derived-from-id: 6499
# x-archived: 2017-03-27T20:03:16
# x-published: 2011-11-07T20:18:00
#
# Useful to utilize JQuery selectors and functions for IE automation.
#
function Invoke-JQuery
{
<#
.SYNOPSIS
Function to Invoke JQuery commands via IE COM
.DESCRIPTION
Invokes JQuery (or plain Javascript) commands via InternetExplorer.Application COM object,
after initial injection of JQuery reference in header section.
Useful to utilize JQuery selectors and functions for IE automation.
.PARAMETER IE
Initialized InternetExplorer.Application COM object
.PARAMETER Command
JQuery/Javascript to Invoke
.PARAMETER Function
Function to add in header section
.PARAMETER Initialize
Switch to initially inject JQuery in header section.
.EXAMPLE
$ie = new-object -com internetexplorer.application
$ie.visible = $true
$ie.navigate2("http://www.example.com")
# Wait for page load
while($ie.busy) {start-sleep 1}
#add addtional div to store results
$div="<div id='myResult'>"
$ie.Document.body.innerHTML += $div
#hide anchor tags
Invoke-JQuery $ie '$("a").hide();' -Initialize
#change innerhtml of div
Invoke-JQuery $ie 'var str=$("p:first").text();$("#myResult").html(str);'
#retrieve the value
$result = $ie.document.getElementById("myResult").innerHtml
$jFunc=@"
function SelectText(element) {
var text = document.getElementById(element);
var range = document.body.createTextRange();
range.moveToElementText(text);
range.select();
}
"@
Invoke-JQuery $ie -Function $jFunc
Invoke-JQuery $ie 'SelectText("myResult");'
#>
[cmdletbinding()]
param(
[parameter(position=0, mandatory=$true)]
$IE,
[parameter(position=1,mandatory=$false)]
$Command,
[parameter()]
$Function,
[parameter()]
[switch]$Initialize
)
if ($Initialize -or $Function){
$url='http://code.jquery.com/jquery-1.4.2.min.js'
$document = $IE.document
$head = @($document.getElementsByTagName("head"))[0]
$script = $document.createElement('script')
$script.type = 'text/javascript'
}
if ($Initialize){
$script.src = $url
$head.appendChild($script) | Out-Null
}
if ($Command){$IE.document.parentWindow.execScript("$Command","javascript")}
if ($Function){
$script.text = $Function
$head.appendChild($script) | Out-Null
}
}