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POMonitor window opening, closing, DOMContentLoaded events for all current & future windows+tabs
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  1. POMonitor window opening, closing, DOMContentLoaded events for all current & future windows+tabs
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    copied!<p><b>Background:</b></p> <p>I'm <em>authorised</em> to "automate" a 3rd party site for the purpose of pushing "service orders" into it and monitoring the progress of those requests.</p> <p>I tried taking a normal "scraping" approach (using <code>WWW::Mechanize</code>, <code>HTML::Query</code>, etc from Perl) but ran into a <em>lot</em> of issues predicting what the JavaScript in the site would do under a variety of circumstances. I intend to go back to this approach if I ever receive support from the vendor of the product which runs the 3rd party site, or can get hold of some better documentation w.r.t business-rules of the product.</p> <p>To avoid second guessing the JavaScript code, and to save a lot of time, I ended up taking an approach were I load the 3rd party site in Firefox on a dedicated VM, and then execute "privileged" code (i.e: nsI*) in the context of the site to "drive" and "scrape" the site.</p> <p>I'm currently using <code>nsIWebProgressListener</code>/<code>DOMContentLoaded</code> (when I already have a reference to a ChromeWindow), and <code>nsIWindowMediator</code> window+tab enumeration called from <code>setInterval</code> to find new windows and tabs (when I have no way to predict them opening, nor gain a reference to their DOMWindow objects due to scoping of 3rd party JavaScript).</p> <p><b>Question:</b> How can I automatically install a "hook" into each Window/Tab opened now (and in the future) by the 3rd party site's JavaScript? Something like a "window watcher" <code>nsI~</code> interface for the whole of the Firefox UI would be very useful in this case.</p>
 

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