def do_component(parser, token):
"""
{% component_block "name" variable="value" variable2="value2" ... %}
"""
bits = token.split_contents()
tag_args, tag_kwargs = parse_bits(
parser=parser,
bits=bits,
params=["tag_name", "component_name"],
takes_context=False,
name="component_block",
**PARSE_BITS_DEFAULTS
)
tag_name = tag_args.pop(0)
if len(bits) < 2:
raise TemplateSyntaxError(
"Call the '%s' tag with a component name as the first parameter" % tag_name
)
component_name = bits[1]
if not component_name.startswith(('"', "'")) or not component_name.endswith(
('"', "'")
):
raise TemplateSyntaxError(
"Component name '%s' should be in quotes" % component_name
)
component_name = component_name.strip('"\'')
component_class = registry.get(component_name)
component = component_class()
extra_context = {}
if len(bits) > 2:
extra_context = component.context(**token_kwargs(bits[2:], parser))
slots_filled = NodeList()
tag_name = bits[0]
while tag_name != "endcomponent_block":
token = parser.next_token()
if token.token_type != TokenType.BLOCK:
continue
tag_name = token.split_contents()[0]
if tag_name == "slot":
slots_filled += do_slot(parser, token, component=component)
elif tag_name == "endcomponent_block":
break
return ComponentNode(component, extra_context, slots_filled)
def process_response_content(content):
from django_components.component import registry
component_names_seen = {
match.group("name")
for match in COMPONENT_COMMENT_REGEX.finditer(content)
}
all_components = [
registry.get(name.decode("utf-8"))("") for name in component_names_seen
]
all_media = join_media(all_components)
js_dependencies = b"".join(
media.encode("utf-8") for media in all_media.render_js())
css_dependencies = b"".join(
media.encode("utf-8") for media in all_media.render_css())
return PLACEHOLDER_REGEX.sub(
DependencyReplacer(css_dependencies, js_dependencies), content)
def parse_component_with_args(parser, bits, tag_name):
tag_args, tag_kwargs = parse_bits(
parser=parser,
bits=bits,
params=["tag_name", "name"],
takes_context=False,
name=tag_name,
varargs=True,
varkw=[],
defaults=None,
kwonly=[],
kwonly_defaults=None,
)
assert (
tag_name == tag_args[0].token
), "Internal error: Expected tag_name to be {}, but it was {}".format(
tag_name, tag_args[0].token)
if (
len(tag_args) > 1
): # At least one position arg, so take the first as the component name
component_name = tag_args[1].token
context_args = tag_args[2:]
context_kwargs = tag_kwargs
else: # No positional args, so look for component name as keyword arg
try:
component_name = tag_kwargs.pop("name").token
context_args = []
context_kwargs = tag_kwargs
except IndexError:
raise TemplateSyntaxError(
"Call the '%s' tag with a component name as the first parameter"
% tag_name)
if not is_wrapped_in_quotes(component_name):
raise TemplateSyntaxError("Component name '%s' should be in quotes" %
component_name)
trimmed_component_name = component_name[1:-1]
component_class = registry.get(trimmed_component_name)
component = component_class(trimmed_component_name)
return component, context_args, context_kwargs
def component_tag(name, *args, **kwargs):
component_class = registry.get(name)
component = component_class()
return component.render(*args, **kwargs)