def __init__(self, template, parameters: ObservableList, values: ObservableDict, empty=None) -> None:
self._value_property = Property(None)
self._template = template
self._values = values
self._empty = empty
self._parameters = parameters
pattern = re.compile('\${([^}]+)\}')
search_start = 0
script_template = ''
required_parameters = set()
if template:
while search_start < len(template):
match = pattern.search(template, search_start)
if not match:
script_template += template[search_start:]
break
param_start = match.start()
if param_start > search_start:
script_template += template[search_start:param_start]
param_name = match.group(1)
required_parameters.add(param_name)
search_start = match.end() + 1
self.required_parameters = tuple(required_parameters)
self._reload()
if self.required_parameters:
values.subscribe(self._value_changed)
parameters.subscribe(self)
def __init__(self, template, parameters: ObservableList, values: ObservableDict, empty=None) -> None:
self._value_property = Property(None)
self._template = template
self._values = values
self._empty = empty
self._parameters = parameters
pattern = re.compile('\${([^}]+)\}')
search_start = 0
script_template = ''
required_parameters = set()
if template:
while search_start < len(template):
match = pattern.search(template, search_start)
if not match:
script_template += template[search_start:]
break
param_start = match.start()
if param_start > search_start:
script_template += template[search_start:param_start]
param_name = match.group(1)
required_parameters.add(param_name)
search_start = match.end() + 1
self.required_parameters = tuple(required_parameters)
self._reload()
if self.required_parameters:
values.subscribe(self._value_changed)
parameters.subscribe(self)
class _TemplateProperty:
def __init__(self,
template,
parameters: ObservableList,
values: ObservableDict,
empty=None) -> None:
self._value_property = Property(None)
self._template = template
self._values = values
self._empty = empty
self._parameters = parameters
pattern = re.compile('\${([^}]+)\}')
search_start = 0
script_template = ''
required_parameters = set()
if template:
while search_start < len(template):
match = pattern.search(template, search_start)
if not match:
script_template += template[search_start:]
break
param_start = match.start()
if param_start > search_start:
script_template += template[search_start:param_start]
param_name = match.group(1)
required_parameters.add(param_name)
search_start = match.end() + 1
self.required_parameters = tuple(required_parameters)
self._reload()
if self.required_parameters:
values.subscribe(self._value_changed)
parameters.subscribe(self)
def _value_changed(self, parameter, old, new):
if parameter in self.required_parameters:
self._reload()
def on_add(self, parameter, index):
if parameter.name in self.required_parameters:
self._reload()
def on_remove(self, parameter):
if parameter.name in self.required_parameters:
self._reload()
def _reload(self):
values_filled = True
for param_name in self.required_parameters:
value = self._values.get(param_name)
if is_empty(value):
values_filled = False
break
if self._template is None:
self.value = None
elif values_filled:
self.value = fill_parameter_values(self._parameters,
self._template, self._values)
else:
self.value = self._empty
self._value_property.set(self.value)
def subscribe(self, observer):
self._value_property.subscribe(observer)
def unsubscribe(self, observer):
self._value_property.unsubscribe(observer)
def get(self):
return self._value_property.get()
class _TemplateProperty:
def __init__(self, template, parameters: ObservableList, values: ObservableDict, empty=None) -> None:
self._value_property = Property(None)
self._template = template
self._values = values
self._empty = empty
self._parameters = parameters
pattern = re.compile('\${([^}]+)\}')
search_start = 0
script_template = ''
required_parameters = set()
if template:
while search_start < len(template):
match = pattern.search(template, search_start)
if not match:
script_template += template[search_start:]
break
param_start = match.start()
if param_start > search_start:
script_template += template[search_start:param_start]
param_name = match.group(1)
required_parameters.add(param_name)
search_start = match.end() + 1
self.required_parameters = tuple(required_parameters)
self._reload()
if self.required_parameters:
values.subscribe(self._value_changed)
parameters.subscribe(self)
def _value_changed(self, parameter, old, new):
if parameter in self.required_parameters:
self._reload()
def on_add(self, parameter, index):
if parameter.name in self.required_parameters:
self._reload()
def on_remove(self, parameter):
if parameter.name in self.required_parameters:
self._reload()
def _reload(self):
values_filled = True
for param_name in self.required_parameters:
value = self._values.get(param_name)
if is_empty(value):
values_filled = False
break
if self._template is None:
self.value = None
elif values_filled:
self.value = fill_parameter_values(self._parameters, self._template, self._values)
else:
self.value = self._empty
self._value_property.set(self.value)
def subscribe(self, observer):
self._value_property.subscribe(observer)
def unsubscribe(self, observer):
self._value_property.unsubscribe(observer)
def get(self):
return self._value_property.get()