Source code for plone.tiles.absoluteurl

import urllib

from zope.component import getMultiAdapter
from zope.component import queryUtility

from zope.traversing.browser.interfaces import IAbsoluteURL
from zope.traversing.browser.absoluteurl import AbsoluteURL

from plone.tiles.interfaces import ITileType, ITileDataManager
from plone.tiles.data import encode

_safe = '@+'


class BaseTileAbsoluteURL(AbsoluteURL):
    """Convenience base class
    """

    def __str__(self):
        tile = self.context
        request = self.request

        id = tile.id
        name = tile.__name__
        context = tile.__parent__

        if name is None or context is None:
            raise TypeError("Insufficient context to determine URL")

        url = str(getMultiAdapter((context, request), IAbsoluteURL))

        tileFragment = "@@" + urllib.quote(name.encode('utf-8'), _safe)
        if id:
            tileFragment += '/' + urllib.quote(id.encode('utf-8'), _safe)

        return '%s/%s' % (url, tileFragment,)

    def breadcrumbs(self):
        tile = self.context
        request = self.request

        id = tile.id
        name = tile.__name__
        context = tile.__parent__

        tileFragment = "@@" + urllib.quote(name.encode('utf-8'), _safe)
        if id:
            tileFragment += '/' + urllib.quote(id.encode('utf-8'), _safe)

        base = tuple(getMultiAdapter((context, request), IAbsoluteURL).breadcrumbs())
        base += ({'name': name,
                  'url': "%s/%s" % (base[-1]['url'], tileFragment,),
                  },)

        return base


class TransientTileAbsoluteURL(BaseTileAbsoluteURL):
    """Absolute URL for a transient tile. Includes the tile traverser and
    tile data encoded in the query string.
    """

    def __str__(self):
        url = super(TransientTileAbsoluteURL, self).__str__()
        data = ITileDataManager(self.context).get()
        if data:
            tileType = queryUtility(ITileType, name=self.context.__name__)
            if tileType is not None and tileType.schema is not None:
                if '?' in url:
                    url += '&' + encode(data, tileType.schema)
                else:
                    url += '?' + encode(data, tileType.schema)
        return url


class PersistentTileAbsoluteURL(BaseTileAbsoluteURL):
    """Absolute URL for a persitent tile. Includes the tile traverser, but no
    tile data encoded in the query string.
    """