Magic Method Exercises

In Recipe #1, add a dump(tag, filename) function that generates output to a UTF-8 encoded file. (That is, it should be able to generate HTML pages that correctly display international characters.)

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The calls to dojo.require() are hard coded inside the dijit function, which in general is not a good idea. Make it so that the require JavaScript section is dynamically generated based on what tags you use.

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Add a load(filename) function that converts an XML file to a hierarchy of Tag objects. You should be able to process XML files like this:

<div>
    <p>
        This is a Button <button>Click me!</button>
    </p>
    <p>
        This is a TextBox <textbox value="The cow jumped over the moon, and it exploded" />
    </p>
    <p>
        This is a CheckBox <checkbox checked="checked" />
    </p>
    <p>
        This is a DateTextBox <datetextbox value="1998-03-23" />
    </p>
</div>

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Write a decorator for Django (or your web framework of choice) that allows you to do this:

@dijit("view.xml")
def view(request):
    return dict(name=request['name'], place=request['place'])

Where view.xml is an XML template file that specifies a Dijit interface.

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In Recipe #2, add a load(filename) function that converts an XML file to a ContainerWrapper object. You should be able to handle XML files like this:

<VFrame>
    <Button text="One" />
    <Button text="Two" />
    <Button text="Tree" />

    <HFrame>
        <Button text="Apple" />
        <Button text="Banana" />
        <Button text="Cranberry" />
    </HFrame>
</HFrame>

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Implement Recipe #2 for wxPython, PyQt, or any other GUI framework of your choice.