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from leapp.compat import unicode_type
class Component(object):
"""
Base class for all components
"""
key = None
label = None
description = None
default = None
value = None
reason = None
value_type = None
def __init__(self, key=None, label=None, description=None, default=None, reason=None):
"""
:param key: Unique key within a dialog scope. Needs to be in the format: `[a-zA-Z_][a-zA-Z0-9_]*`
:param label: Label for the input to print
:param description: Description what this value is used for.
:param default: Default value to
:param reason: The reason why we need this value.
"""
self.key = key or type(self).key
self.label = label.replace('\n', ' ').strip() if label else type(self).label
self.description = description or type(self).description
self.default = default if default is not None else type(self).default
self.value = type(self).value
self.reason = reason or type(self).reason
def dispatch(self, renderer, dialog):
raise NotImplementedError()
def serialize(self):
"""
:return: Serialized component information
"""
return {
'key': self.key,
'label': self.label,
'description': self.description,
'default': self.default,
'value': self.value,
'reason': self.reason,
'value_type': str(self.value_type) if self.value_type else None
}
class TextComponent(Component):
"""
TextComponent is a text input component.
"""
value_type = str
def dispatch(self, renderer, dialog):
renderer.render_text_component(self, dialog=dialog)
class PasswordComponent(TextComponent):
"""
PasswordComponent is a text input component which will use non echoing input when possible (see getpass).
"""
label = 'Password'
value_type = str
def dispatch(self, renderer, dialog):
renderer.render_password_component(self, dialog=dialog)
class NumberComponent(Component):
"""
NumberComponent is used for integer inputs.
"""
value_type = int
default = -1
def dispatch(self, renderer, dialog):
renderer.render_number_component(self, dialog=dialog)
class BooleanComponent(Component):
"""
BooleanComponent is used for boolean inputs such as Yes/No questions.
"""
choices = ('True', 'False')
values = ('Yes', 'No')
value_type = bool
def __init__(self, key=None, label=None, description=None, default=None, reason=None, values=None):
"""
:param key: Unique key within a dialog scope. Needs to be in the format: `[a-zA-Z_][a-zA-Z0-9_]*`
:param label: Label for the input to print
:param description: Description what this value is used for.
:param default: Default value to
:param reason: The reason why we need this value.
:param values: Values to use as True and False, first is always True and the second is always False
(e.g. Yes/No)
"""
super(BooleanComponent, self).__init__(key=key, label=label, description=description, default=default,
reason=reason)
self.values = values or type(self).values
def dispatch(self, renderer, dialog):
renderer.render_bool_component(self, dialog=dialog)
class ChoiceComponent(Component):
"""
ChoiceComponent is used to give a list of options and allows to select one (like a radio button)
"""
choices = ()
multi = False
value_type = unicode_type
def __init__(self, choices=None, key=None, label=None, description=None, default=None, reason=None):
"""
:param key: Unique key within a dialog scope. Needs to be in the format: `[a-zA-Z_][a-zA-Z0-9_]*`
:param label: Label for the input to print
:param description: Description what this value is used for.
:param default: Default value to
:param reason: The reason why we need this value.
:param choices: Choices that are available to the user
"""
super(ChoiceComponent, self).__init__(key=key, label=label, description=description, default=default,
reason=reason)
self.choices = choices or type(self).choices
def dispatch(self, renderer, dialog):
renderer.render_choice_component(self, dialog=dialog)
class MultipleChoiceComponent(ChoiceComponent):
"""
MultipleChoiceComponent is used to give a list of options and allows to select more than one (like checkboxes)
"""
choices = ()
multi = True
value_type = tuple # indices
def dispatch(self, renderer, dialog):
"""
Calls the appropriate rendering implementation on the renderer and passes itself and the dialog instance to it.
:param renderer: Renderer instance
:type renderer: :py:class:`leapp.dialogs.renderer.DialogRendererBase`
:param dialog:
:return:
"""
renderer.render_multiple_choice_component(self, dialog=dialog)