def __init__(self, widget=None):
ProxyWidgetMixin.__init__(self)
# Inicial valid state is unkown (None), so that when _set_valid_state is
# called for the first time, the signal gets emitted
self._valid = None
self._fade = FadeOut(self)
self._fade.connect('color-changed', self._on_fadeout__color_changed)
self.connect('notify::mandatory', self._on_notify__mandatory)
self.connect('notify::sensitive', self._on_notify__sensitive)
self.connect('notify::visible', self._on_notify__visible)
def __init__(self, widget=None):
ProxyWidgetMixin.__init__(self)
# Inicial valid state is unkown (None), so that when _set_valid_state is
# called for the first time, the signal gets emitted
self._valid = None
self._fade = FadeOut(self)
self._fade.connect('color-changed', self._on_fadeout__color_changed)
self.connect('notify::mandatory', self._on_notify__mandatory)
class ValidatableProxyWidgetMixin(ProxyWidgetMixin):
"""Class used by some Kiwi Widgets that need to support mandatory
input and validation features such as custom validation and data-type
validation.
Mandatory support provides a way to warn the user when input is necessary.
The validatation feature provides a way to check the data entered and to
display information about what is wrong.
"""
implements(IValidatableProxyWidget)
def __init__(self, widget=None):
ProxyWidgetMixin.__init__(self)
# Inicial valid state is unkown (None), so that when _set_valid_state is
# called for the first time, the signal gets emitted
self._valid = None
self._fade = FadeOut(self)
self._fade.connect('color-changed', self._on_fadeout__color_changed)
self.connect('notify::mandatory', self._on_notify__mandatory)
self.connect('notify::sensitive', self._on_notify__sensitive)
self.connect('notify::visible', self._on_notify__visible)
# Override in subclass
def update_background(self, color):
"Implement in subclass"
def get_background(self):
"Implement in subclass"
def set_pixbuf(self, pixbuf):
"Implement in subclass"
def set_tooltip(self, text):
"Implement in subclass"
# Public API
def is_valid(self):
"""
Verify the widget state.
:returns: True if the widget is in validated state
"""
return self._valid
def validate(self, force=False):
"""Checks if the data is valid.
Validates data-type and custom validation.
:param force: if True, force validation
:returns: validated data or ValueUnset if it failed
"""
# If we're not visible or sensitive return a blank value, except
# when forcing the validation
if not force and (not self.get_property('visible')
or not self.get_property('sensitive')):
self._set_pixbuf(None)
return ValueUnset
try:
data = self.read()
log.debug('Read %r for %s' % (data, self.model_attribute))
self.validate_value(data)
# check if we should draw the mandatory icon
# this need to be done before any data conversion because we
# we don't want to end drawing two icons
if self.mandatory and (data is None or data == ''
or data == ValueUnset):
self.set_blank()
return ValueUnset
else:
# The widgets themselves have now valid the data
# Next step is to call the application specificed
# checks, which are found in the view.
if data is not None and data is not ValueUnset:
# this signal calls the on_widgetname__validate method
# of the view class and gets the exception (if any).
error = self.emit("validate", data)
if error:
raise error
self.set_valid()
return data
except ValidationError, e:
self.set_invalid(str(e))
return ValueUnset
def __init__(self, widget=None):
ProxyWidgetMixin.__init__(self)
self._valid = True
self._fade = FadeOut(self)
self._fade.connect('color-changed', self._on_fadeout__color_changed)
class ValidatableProxyWidgetMixin(ProxyWidgetMixin):
"""Class used by some Kiwi Widgets that need to support mandatory
input and validation features such as custom validation and data-type
validation.
Mandatory support provides a way to warn the user when input is necessary.
The validatation feature provides a way to check the data entered and to
display information about what is wrong.
"""
implements(IValidatableProxyWidget)
gproperty('mandatory', bool, default=False)
def __init__(self, widget=None):
ProxyWidgetMixin.__init__(self)
self._valid = True
self._fade = FadeOut(self)
self._fade.connect('color-changed', self._on_fadeout__color_changed)
# Override in subclass
def update_background(self, color):
"Implement in subclass"
def get_background(self):
"Implement in subclass"
def set_pixbuf(self, pixbuf):
"Implement in subclass"
def get_icon_window(self):
"Implement in subclass"
def set_tooltip(self, text):
"Implement in subclass"
# Public API
def is_valid(self):
"""
Verify the widget state.
@returns: True if the widget is in validated state
"""
return self._valid
def validate(self, force=False):
"""Checks if the data is valid.
Validates data-type and custom validation.
@param force: if True, force validation
@returns: validated data or ValueUnset if it failed
"""
# If we're not visible or sensitive return a blank value, except
# when forcing the validation
if not force and (not self.get_property('visible') or
not self.get_property('sensitive')):
return ValueUnset
try:
data = self.read()
log.debug('Read %r for %s' % (data, self.model_attribute))
# check if we should draw the mandatory icon
# this need to be done before any data conversion because we
# we don't want to end drawing two icons
if self.mandatory and (data == None or
data == '' or
data == ValueUnset):
self.set_blank()
return ValueUnset
else:
# The widgets themselves have now valid the data
# Next step is to call the application specificed
# checks, which are found in the view.
if data is not None and data is not ValueUnset:
# this signal calls the on_widgetname__validate method
# of the view class and gets the exception (if any).
error = self.emit("validate", data)
if error:
raise error
self.set_valid()
return data
except ValidationError, e:
self.set_invalid(str(e))
return ValueUnset
def __init__(self, widget=None):
ProxyWidgetMixin.__init__(self)
self._valid = True
self._fade = FadeOut(self)
self._fade.connect('color-changed', self._on_fadeout__color_changed)
