76 lines
1.9 KiB
Python
76 lines
1.9 KiB
Python
from django import forms
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from django.utils.functional import cached_property
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from django.utils.safestring import SafeString
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from django.utils.translation import gettext as _
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from wagtail.admin.staticfiles import versioned_static
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from wagtail.telepath import Adapter, register
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from .base import Block
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__all__ = ["StaticBlock"]
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class StaticBlock(Block):
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"""
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A block that just 'exists' and has no fields.
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"""
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def get_admin_text(self):
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if self.meta.admin_text is None:
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if self.label:
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return _("%(label)s: this block has no options.") % {
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"label": self.label
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}
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else:
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return _("This block has no options.")
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return self.meta.admin_text
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def value_from_datadict(self, data, files, prefix):
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return None
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def normalize(self, value):
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return None
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def render_basic(self, value, context=None):
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return ""
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class Meta:
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admin_text = None
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default = None
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class StaticBlockAdapter(Adapter):
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js_constructor = "wagtail.blocks.StaticBlock"
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def js_args(self, block):
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admin_text = block.get_admin_text()
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if isinstance(admin_text, SafeString):
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text_or_html = "html"
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else:
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text_or_html = "text"
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return [
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block.name,
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{
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text_or_html: admin_text,
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"icon": block.meta.icon,
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"label": block.label,
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"description": block.get_description(),
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"blockDefId": block.definition_prefix,
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"isPreviewable": block.is_previewable,
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},
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]
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@cached_property
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def media(self):
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return forms.Media(
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js=[
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versioned_static("wagtailadmin/js/telepath/blocks.js"),
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]
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)
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register(StaticBlockAdapter(), StaticBlock)
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