7882644731
Introduces a widget system where domains register UI fragments into named slots (container_nav, container_card, account_page, account_link). Host apps iterate widgets generically without naming any domain. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
91 lines
2.6 KiB
Python
91 lines
2.6 KiB
Python
"""Singleton widget registry for cross-domain UI composition.
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Usage::
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from shared.services.widget_registry import widgets
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# Register at app startup (after domain services)
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widgets.add_container_nav(NavWidget(...))
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# Query in templates / context processors
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for w in widgets.container_nav:
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ctx = await w.context_fn(session, container_type="page", ...)
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"""
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from __future__ import annotations
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from shared.contracts.widgets import (
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NavWidget,
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CardWidget,
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AccountPageWidget,
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AccountNavLink,
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)
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class _WidgetRegistry:
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"""Central registry holding all widget descriptors.
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Widgets are added at startup and read at request time.
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Properties return sorted-by-order copies.
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"""
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def __init__(self) -> None:
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self._container_nav: list[NavWidget] = []
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self._container_card: list[CardWidget] = []
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self._account_pages: list[AccountPageWidget] = []
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self._account_nav: list[AccountNavLink] = []
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# -- registration ---------------------------------------------------------
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def add_container_nav(self, w: NavWidget) -> None:
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self._container_nav.append(w)
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def add_container_card(self, w: CardWidget) -> None:
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self._container_card.append(w)
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def add_account_page(self, w: AccountPageWidget) -> None:
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self._account_pages.append(w)
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# Auto-create a matching internal nav link
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slug = w.slug
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def _href(s=slug):
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from shared.infrastructure.urls import coop_url
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return coop_url(f"/auth/{s}/")
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self._account_nav.append(AccountNavLink(
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label=w.label,
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order=w.order,
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href_fn=_href,
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external=False,
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))
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def add_account_link(self, link: AccountNavLink) -> None:
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self._account_nav.append(link)
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# -- read access (sorted copies) ------------------------------------------
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@property
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def container_nav(self) -> list[NavWidget]:
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return sorted(self._container_nav, key=lambda w: w.order)
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@property
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def container_cards(self) -> list[CardWidget]:
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return sorted(self._container_card, key=lambda w: w.order)
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@property
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def account_pages(self) -> list[AccountPageWidget]:
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return sorted(self._account_pages, key=lambda w: w.order)
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@property
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def account_nav(self) -> list[AccountNavLink]:
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return sorted(self._account_nav, key=lambda w: w.order)
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def account_page_by_slug(self, slug: str) -> AccountPageWidget | None:
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for w in self._account_pages:
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if w.slug == slug:
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return w
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return None
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# Module-level singleton — import this everywhere.
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widgets = _WidgetRegistry()
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