Get specified HTML element about webtools HOT 8 CLOSED

That should be easy, I'm looking at it now.

Always interested in hearing how people use it.

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Yes: The WebDriver protocol provides the basics (launching a browser, opening web pages, navigating pages, clicking and typing, etc.). But there are many common and useful things one might want to to, so building higher level Wolfram Language functions based on WebDriver functions + Javascript is a good direction to extend this package.

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Quick solution, use JavascriptExecute (change 'id' to what you need):

JavascriptExecute["return document.getElementById('id').innerHTML;"]

Or, as a Wolfram Language function:

GetHtmlForId[id_String] := JavascriptExecute[ 
  "return document.getElementById('" <> id <> "').innerHTML;"]

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Thanks a lot! JavascriptExecute is really powerful! BTW, I checked your source code, it seems that most of the existing functions like ClickElement are actually done by calling JavascriptExecute, am I right?

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Some additional methods for getting HTMLs:

Options[GetHTML]={"Selection"->"outer"};
GetHtml[Selector[sel_String],OptionsPattern[]] := JavascriptExecute[ "return document.querySelector('" <> sel <> "')."<>OptionValue["Selection"]<>"HTML;"]
GetHTML[XPath[xp_String],OptionsPattern[]] := JavascriptExecute["document.evaluate('"<>xp<>"', document, null, XPathResult.FIRST_ORDERED_NODE_TYPE, null).singleNodeValue."<>OptionValue["Selection"]<>"HTML;"]

and your GetHtmlForId:
GetHtml[Id[id_String],OptionsPattern[]] := JavascriptExecute["return document.getElementById('" <> id <> "')."<>OptionValue["Selection"]<>"HTML;"]

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Also, here's a few frequently used functions when I'm using WebUnit:
GetPageURL[]:=JavascriptExecute["return window.location.href;"]
OffAlert[]:=JavascriptExecute[ "window.alert=function(){return 1}; window.confirm=function(){return 1}; window.prompt=function(){return 1};"]

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I understand what GetPageURL is useful for. But can you explain what Off/OnAlert is for?

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Errr, I modified the code a bit, It seems that the old version didn't work out.....
OffAlert is used to turn off all alerts or confirmation windows created by alert(), confirm() and prompt(). Once these alerts are on, it's impossible(?) to control the web page anymore without a human clicking "confirm" button and turn the alert off, which is annoying......

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