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css_completions.py
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css_completions.py
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import re
import sublime
import sublime_plugin
import timeit
from functools import cached_property, wraps
from . import completions
__all__ = ['CSSCompletions']
KIND_CSS_PROPERTY = (sublime.KIND_ID_KEYWORD, "p", "property")
KIND_CSS_FUNCTION = (sublime.KIND_ID_FUNCTION, "f", "function")
KIND_CSS_CONSTANT = (sublime.KIND_ID_VARIABLE, "c", "constant")
ENABLE_TIMING = False
def timing(func):
@wraps(func)
def wrap(*args, **kw):
if ENABLE_TIMING:
ts = timeit.default_timer()
result = func(*args, **kw)
if ENABLE_TIMING:
te = timeit.default_timer()
print(f"{func.__name__}({args}, {kw}) took: {1000.0 * (te - ts):2.3f} ms")
return result
return wrap
def match_selector(view, pt, scope):
# This will catch scenarios like:
# - .foo {font-style: |}
# - <style type="text/css">.foo { font-weight: b|</style>
return any(view.match_selector(p, scope) for p in (pt, pt - 1))
def next_none_whitespace(view, pt):
for pt in range(pt, view.size()):
ch = view.substr(pt)
if ch not in ' \t':
return ch
class CSSCompletions(sublime_plugin.EventListener):
@cached_property
def func_args(self):
return completions.get_func_args()
@cached_property
def props(self):
return completions.get_properties()
@cached_property
def re_name(self):
return re.compile(r"([a-zA-Z-]+)\s*:[^:;{}]*$")
@cached_property
def re_value(self):
return re.compile(r"^(?:\s*(:)|([ \t]*))([^:]*)([;}])")
@timing
def on_query_completions(self, view, prefix, locations):
settings = sublime.load_settings('CSS.sublime-settings')
if settings.get('disable_default_completions'):
return None
selector = settings.get('default_completions_selector', '')
if isinstance(selector, list):
selector = ''.join(selector)
pt = locations[0]
if not match_selector(view, pt, selector):
return None
if match_selector(view, pt, "meta.property-value.css meta.function-call.arguments"):
items = self.complete_function_argument(view, prefix, pt)
elif view.match_selector(pt - 1, "meta.property-value.css, punctuation.separator.key-value"):
items = self.complete_property_value(view, prefix, pt)
elif view.match_selector(pt - 1, "meta.property-name.css, meta.property-list.css - meta.selector"):
items = self.complete_property_name(view, prefix, pt)
else:
# TODO: provide selectors, at-rules
items = None
if items:
return sublime.CompletionList(items, sublime.INHIBIT_WORD_COMPLETIONS)
return None
def complete_property_name(self, view, prefix, pt):
text = view.substr(sublime.Region(pt, view.line(pt).end()))
matches = self.re_value.search(text)
if matches:
colon, space, value, term = matches.groups()
else:
colon = ""
space = ""
value = ""
term = ""
# don't append anything if next character is a colon
suffix = ""
if not colon:
# add space after colon if smart typing is enabled
if not space and view.settings().get("auto_complete_trailing_spaces"):
suffix = ": $0"
else:
suffix = ":$0"
# terminate empty value if not within parentheses
if not value and not term and not match_selector(view, pt, "meta.group"):
suffix += ";"
return (
sublime.CompletionItem(
trigger=prop,
completion=prop + suffix,
completion_format=sublime.COMPLETION_FORMAT_SNIPPET,
kind=KIND_CSS_PROPERTY
) for prop in self.props
)
def complete_property_value(self, view, prefix, pt):
completions = [
sublime.CompletionItem(
trigger="!important",
completion_format=sublime.COMPLETION_FORMAT_TEXT,
kind=sublime.KIND_KEYWORD,
details="override any other declaration"
)
]
text = view.substr(sublime.Region(view.line(pt).begin(), pt - len(prefix)))
matches = self.re_name.search(text)
if matches:
prop = matches.group(1)
values = self.props.get(prop)
if values:
details = f"<code>{prop}</code> property-value"
if match_selector(view, pt, "meta.group") or next_none_whitespace(view, pt) == ";":
suffix = ""
else:
suffix = "$0;"
for value in values:
if isinstance(value, list):
desc, snippet = value
kind = KIND_CSS_FUNCTION
else:
desc = value
snippet = value
kind = KIND_CSS_CONSTANT
completions.append(sublime.CompletionItem(
trigger=desc,
completion=snippet + suffix,
completion_format=sublime.COMPLETION_FORMAT_SNIPPET,
kind=kind,
details=details
))
return completions
def complete_function_argument(self, view: sublime.View, prefix, pt):
func_name = ""
nest_level = 1
# Look for the beginning of the current function call's arguments list,
# while ignoring any nested function call or group.
for i in range(pt - 1, pt - 32 * 1024, -1):
ch = view.substr(i)
# end of nested arguments list or group before caret
if ch == ")" and not view.match_selector(i, "string, comment"):
nest_level += 1
continue
# begin of maybe nested arguments list or group before caret
if ch == "(" and not view.match_selector(i, "string, comment"):
nest_level -= 1
# Stop, if nesting level drops below start value as this indicates the
# beginning of the arguments list the function name is of interest for.
if nest_level <= 0:
func_name = view.substr(view.expand_by_class(
i - 1, sublime.CLASS_WORD_START | sublime.CLASS_WORD_END))
break
if func_name == "var":
return [
sublime.CompletionItem(
trigger=symbol,
completion_format=sublime.COMPLETION_FORMAT_TEXT,
kind=sublime.KIND_VARIABLE,
details="var() argument"
)
for symbol in set(
view.substr(symbol_region)
for symbol_region in view.find_by_selector("entity.other.custom-property")
)
if not prefix or symbol.startswith(prefix)
]
args = self.func_args.get(func_name)
if not args:
return None
completions = []
details = f"{func_name}() argument"
for arg in args:
if isinstance(arg, list):
completions.append(sublime.CompletionItem(
trigger=arg[0],
completion=arg[1],
completion_format=sublime.COMPLETION_FORMAT_SNIPPET,
kind=KIND_CSS_FUNCTION,
details=details
))
else:
completions.append(sublime.CompletionItem(
trigger=arg,
completion_format=sublime.COMPLETION_FORMAT_TEXT,
kind=KIND_CSS_CONSTANT,
details=details
))
return completions