I want to be able to attach a menu to a specific page...right?

[Brad Bollenbach]

I've got this page:

    http://localhost:8086/distros/debian/+filebug

on which I want to drape a set of Malone menu tabs. I attempted to start defining this menu like this (untested):

class FileBugFormMenu(BugTaskSubsetMenu):
    """Malone application menu when filing a bug."""

    usedfor = IBugAddForm

    def context_bugs(self):
        context_title = self.context.title
        buglist_url = self._get_context_canonical_url() + "/+bugs"

        return Link(
            target=buglist_url, text="%s Bugs" % context_title,
            summary="Bugs in %s" % context_title)

    def filebug(self):
        context_title = self.context.title
        filebug_url = self._get_context_canonical_url() + "/+filebug"

        return Link(
            target=filebug_url, text="Report a Bug",
            summary="Report a Bug in %s" % context_title)

    def showreports(self):
        context_title = self.context.context.title
        bugs_url = self._get_context_canonical_url() + "/+bugs"
        target = bugs_url + "/+advanced"

        return Link(target=target, text="Show Reports",
                    summary="Show Reports for %s" % context_title)

    def _get_context_canonical_url(self):
        """Return the canonical URL of the bug context."""
        return canonical_url(self.context)

Two things then occurred to me:

   1. The context of the +filebug form is an IProduct or an IDistribution, not an IBugAddForm (or something else, but let's ignore the other details for now.)

   2. If I go ahead and correct this, by, say a menu defined on IProduct, I'm going to end up inadvertently adding a menu to:

    http://localhost:8086/products/firefox

which, of course, I don't want to do.

I want to be able to do say "use this menu for the +filebug view" in ZCML, something like, e.g.

    <browser:addform
        name="+filebug"
        for="canonical.launchpad.interfaces.IProduct"
        schema="canonical.launchpad.interfaces.IBugAddForm"
        menu="canonical.launchpad.browser.launchpad.FileBugPageMenu"
        ...

[Steve Alexander (stevea)]

You can get the effect you want by adding the link to the application menu for the bugs facet. That is, the menu that is shown only when the bugs facet is selected.