45 lines
1.3 KiB
Python
45 lines
1.3 KiB
Python
from typing import List
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from abc import ABC, abstractmethod
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class BreadcrumbItem(object):
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def __init__(self, title, href):
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self.title = title
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self.href = href
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def render(self, documentRoot, active=False):
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return '<li class="breadcrumb-item {active}"><a href="{documentRoot}{href}">{title}</a></li>'.format(
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documentRoot=documentRoot, href=self.href, title=self.title, active="active" if active else ""
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)
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class Breadcrumb(object):
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def __init__(self, breadcrumbs: List[BreadcrumbItem]):
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self.items = breadcrumbs
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def render(self, documentRoot):
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return """
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<ol class="breadcrumb">
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{crumbs}
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{last_crumb}
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</ol>
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""".format(
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crumbs="".join(item.render(documentRoot) for item in self.items[:-1]),
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last_crumb="".join(item.render(documentRoot, True) for item in self.items[-1:]),
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)
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def append(self, crumb: BreadcrumbItem):
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self.items.append(crumb)
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return self
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class BreadcrumbMixin(ABC):
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def template_variables(self):
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variables = super().template_variables()
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variables["breadcrumb"] = self.get_breadcrumb().render(self.get_document_root())
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return variables
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@abstractmethod
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def get_breadcrumb(self) -> Breadcrumb:
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pass
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