153 lines
3.9 KiB
Python
153 lines
3.9 KiB
Python
# Copyright 2015 Canonical, Ltd.
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU Affero General Public License as
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# published by the Free Software Foundation, either version 3 of the
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# License, or (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU Affero General Public License for more details.
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#
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# You should have received a copy of the GNU Affero General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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""" Re-usable input widgets
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"""
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from urwid import (Edit, IntEdit, RadioButton, WidgetWrap)
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import logging
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import re
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log = logging.getLogger("subiquitycore.ui.input")
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class StringEditor(WidgetWrap):
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""" Edit input class
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Initializes and Edit object and attachs its result
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to the `value` accessor.
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"""
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def __init__(self, caption, **kwargs):
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self._edit = Edit(caption=caption, **kwargs)
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self.error = None
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super().__init__(self._edit)
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def keypress(self, size, key):
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if self.error:
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self._edit.set_edit_text("")
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self.error = None
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return super().keypress(size, key)
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def set_error(self, msg):
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self.error = msg
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return self._edit.set_edit_text(msg)
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@property
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def value(self):
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return self._edit.get_edit_text()
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@value.setter # NOQA
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def value(self, value):
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self._edit.set_edit_text(value)
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class PasswordEditor(StringEditor):
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""" Password input prompt with masking
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"""
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def __init__(self, caption, mask="*"):
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super().__init__(caption, mask=mask)
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class RealnameEditor(StringEditor):
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""" Username input prompt with input rules
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"""
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def keypress(self, size, key):
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''' restrict what chars we allow for username '''
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realname = r'[a-zA-Z0-9_\- ]'
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if re.match(realname, key) is None:
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return False
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return super().keypress(size, key)
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class UsernameEditor(StringEditor):
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""" Username input prompt with input rules
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"""
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def keypress(self, size, key):
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''' restrict what chars we allow for username '''
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userlen = len(self.value)
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if userlen == 0:
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username = r'[a-z_]'
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else:
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username = r'[a-z0-9_-]'
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# don't allow non username chars
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if re.match(username, key) is None:
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return False
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return super().keypress(size, key)
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class MountEditor(StringEditor):
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""" Mountpoint input prompt with input rules
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"""
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def keypress(self, size, key):
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''' restrict what chars we allow for mountpoints '''
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mountpoint = r'[a-zA-Z0-9_/\.\-]'
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if re.match(mountpoint, key) is None:
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return False
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return super().keypress(size, key)
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class IntegerEditor(WidgetWrap):
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""" IntEdit input class
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"""
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def __init__(self, caption, default=0):
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self._edit = IntEdit(caption=caption, default=default)
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super().__init__(self._edit)
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@property
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def value(self):
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return self._edit.get_edit_text()
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class Selector(WidgetWrap):
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""" Radio selection list of options
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"""
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def __init__(self, opts):
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"""
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:param list opts: list of options to display
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"""
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self.opts = opts
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self.group = []
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self._add_options()
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def _add_options(self):
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for item in self.opts:
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RadioButton(self.group, item)
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@property
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def value(self):
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for item in self.group:
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log.debug(item)
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if item.get_state():
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return item.label
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return "Unknown option"
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class YesNo(Selector):
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""" Yes/No selector
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"""
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def __init__(self):
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opts = ['Yes', 'No']
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super().__init__(opts)
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