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All the Perl that's Practical to Extract and Report

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Mozilla 7 Comments More | Login | Reply /

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  • Check out XUL-Node on CPAN.

    • Nice... I see it's a rather recent addition to CPAN. This is rather nice, but without proper xpcom support, wouldn't be as extensible. With XPCOM, everything that you can do DOM wise in the browser with javascript you can automatically do with perl, giving you the ability to have:

        <script type="text/perl" language="perl">
          my $text = $document->createNode('p');
          $text->{'value'} = 'Hello World';
          $document->body->appendChild($text);
        </s

      --
      -Scott McWhirter- | -kungfuftr-
      "JAWK - Just Another Whiny Kid"
      • Your example becomes, in XUL-Node:

            Window(Label(value => 'Hello World'));

        It is just a little Perl sugar over the API you showed.

        What can you do in Javascript with XPCOM that you cannot in XUL-Node, which makes it more extensible?

        • the full DOM API (including most of DOM2), things like dynamically append and reappend element nodes to different locations within the document. XUL::Node allows you to print elements very easily, but it doesn't let you mess about with that document once its been rendered. Some good documentation on this sort of stuff is along the lines of is to have a look at seamonkey's XPCONNECT ability and the python/ruby xpcom bindings.

          What would it mean... well say for example you've got a javascript event that fires when you've got a dropdown box that would populate a text field. Using XPCOM, you can get javascript to call a perl method that will return text based on the option you've selected, etc. Has a heck of a lot of nice stuff...

          --
          -Scott McWhirter- | -kungfuftr-
          "JAWK - Just Another Whiny Kid"
          • > the full DOM API (including most of DOM2), things like dynamically
            > append and reappend element nodes to different locations within the
            > document

            Next version will have support for disposal of nodes, and re-parenting.
            Very easy to add.

            > XUL::Node allows you to print elements very easily

            Yes it allows you add nodes to the document very easily.

            > but it doesn't let you mess about with that document once its been
            > rendered.

            You mean re-parenting and disposal?

            Or do you mean calling attribut

            • I suppose what i mean is, that XUL::Node is very dependant on their being an external engine which does lots of different bits and bobs. There's also this issue that you're using 2 extra layers (HTTP+JavaScript) which means that it's more prone to error.

              We've been doing something similar my current employer, but more on a HTML basis as posed to an XUL one and there are quite a few limitations to the RPC mechanism... for example:
              How do you make the software interact with external devices such as barcode

              --
              -Scott McWhirter- | -kungfuftr-
              "JAWK - Just Another Whiny Kid"
              • > I suppose what i mean is, that XUL::Node is very dependant on their
                > being an external engine which does lots of different bits and bobs.

                Do you mean the XUL::Node code itself? But if there was a viable Perl-
                XPCOM bridge you would be dependant on that. What is the difference?

                Anyway, nothing in XUL-Node does lots of anything. It is a very simple
                tool.

                > There's also this issue that you're using 2 extra layers
                > (HTTP+JavaScript) which means that it's more prone to error.

                Yes, you can now be hurt
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